diff options
Diffstat (limited to 'libcaja-private/caja-icon-canvas-item.c')
| -rw-r--r-- | libcaja-private/caja-icon-canvas-item.c | 3874 |
1 files changed, 3874 insertions, 0 deletions
diff --git a/libcaja-private/caja-icon-canvas-item.c b/libcaja-private/caja-icon-canvas-item.c new file mode 100644 index 00000000..7362809b --- /dev/null +++ b/libcaja-private/caja-icon-canvas-item.c @@ -0,0 +1,3874 @@ +/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ + +/* Caja - Icon canvas item class for icon container. + * + * Copyright (C) 2000 Eazel, Inc + * + * Author: Andy Hertzfeld <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <config.h> +#include <math.h> +#include "caja-icon-canvas-item.h" + +#include <glib/gi18n.h> + +#include "caja-file-utilities.h" +#include "caja-global-preferences.h" +#include "caja-icon-private.h" +#include <eel/eel-art-extensions.h> +#include <eel/eel-gdk-extensions.h> +#include <eel/eel-gdk-pixbuf-extensions.h> +#include <eel/eel-glib-extensions.h> +#include <eel/eel-mate-extensions.h> +#include <eel/eel-graphic-effects.h> +#include <eel/eel-gtk-macros.h> +#include <eel/eel-pango-extensions.h> +#include <eel/eel-string.h> +#include <eel/eel-accessibility.h> +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gtk/gtk.h> +#include <gdk/gdk.h> +#include <glib/gi18n.h> +#include <eel/eel-canvas-util.h> +#include <atk/atkimage.h> +#include <atk/atkcomponent.h> +#include <atk/atknoopobject.h> +#include <stdio.h> +#include <string.h> + +#define EMBLEM_SPACING 2 + +/* gap between bottom of icon and start of text box */ +#define LABEL_OFFSET 1 +#define LABEL_LINE_SPACING 0 + +#define MAX_TEXT_WIDTH_STANDARD 135 +#define MAX_TEXT_WIDTH_TIGHTER 80 +#define MAX_TEXT_WIDTH_BESIDE 90 +#define MAX_TEXT_WIDTH_BESIDE_TOP_TO_BOTTOM 150 + +/* special text height handling + * each item has three text height variables: + * + text_height: actual height of the displayed (i.e. on-screen) PangoLayout. + * + text_height_for_layout: height used in icon grid layout algorithms. + * “sane amount” of text. + * “sane amount“ as of + * + hard-coded to three lines in text-below-icon mode. + * + unlimited in text-besides-icon mode (see VOODOO-TODO) + * + * This layout height is used by grid layout algorithms, even + * though the actually displayed and/or requested text size may be larger + * and overlap adjacent icons, if an icon is selected. + * + * + text_height_for_entire_text: height needed to display the entire PangoLayout, + * if it wasn't ellipsized. + */ + +/* Private part of the CajaIconCanvasItem structure. */ +struct CajaIconCanvasItemDetails +{ + /* The image, text, font. */ + double x, y; + GdkPixbuf *pixbuf; + GdkPixbuf *rendered_pixbuf; + GList *emblem_pixbufs; + char *editable_text; /* Text that can be modified by a renaming function */ + char *additional_text; /* Text that cannot be modifed, such as file size, etc. */ + GdkPoint *attach_points; + int n_attach_points; + + /* Size of the text at current font. */ + int text_dx; + int text_width; + + /* actual size required for rendering the text to display */ + int text_height; + /* actual size that would be required for rendering the entire text if it wasn't ellipsized */ + int text_height_for_entire_text; + /* actual size needed for rendering a “sane amount” of text */ + int text_height_for_layout; + + int editable_text_height; + + /* whether the entire text must always be visible. In that case, + * text_height_for_layout will always be equal to text_height. + * Used for the last line of a line-wise icon layout. */ + guint entire_text : 1; + + /* preview state */ + guint is_active : 1; + + /* Highlight state. */ + guint is_highlighted_for_selection : 1; + guint is_highlighted_as_keyboard_focus: 1; + guint is_highlighted_for_drop : 1; + guint is_highlighted_for_clipboard : 1; + guint show_stretch_handles : 1; + guint is_prelit : 1; + + guint rendered_is_active : 1; + guint rendered_is_highlighted_for_selection : 1; + guint rendered_is_highlighted_for_drop : 1; + guint rendered_is_highlighted_for_clipboard : 1; + guint rendered_is_prelit : 1; + guint rendered_is_focused : 1; + + guint is_renaming : 1; + + guint bounds_cached : 1; + + guint is_visible : 1; + + GdkRectangle embedded_text_rect; + char *embedded_text; + + /* Cached PangoLayouts. Only used if the icon is visible */ + PangoLayout *editable_text_layout; + PangoLayout *additional_text_layout; + PangoLayout *embedded_text_layout; + + /* Cached rectangle in canvas coordinates */ + EelIRect canvas_rect; + EelIRect text_rect; + EelIRect emblem_rect; + + EelIRect bounds_cache; + EelIRect bounds_cache_for_layout; + EelIRect bounds_cache_for_entire_item; + + /* Accessibility bits */ + GailTextUtil *text_util; +}; + +/* Object argument IDs. */ +enum +{ + PROP_0, + PROP_EDITABLE_TEXT, + PROP_ADDITIONAL_TEXT, + PROP_HIGHLIGHTED_FOR_SELECTION, + PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS, + PROP_HIGHLIGHTED_FOR_DROP, + PROP_HIGHLIGHTED_FOR_CLIPBOARD +}; + +typedef enum +{ + RIGHT_SIDE, + BOTTOM_SIDE, + LEFT_SIDE, + TOP_SIDE +} RectangleSide; + +enum +{ + ACTION_OPEN, + ACTION_MENU, + LAST_ACTION +}; + +typedef struct +{ + char *action_descriptions[LAST_ACTION]; + char *image_description; + char *description; +} CajaIconCanvasItemAccessiblePrivate; + +typedef struct +{ + CajaIconCanvasItem *item; + gint action_number; +} CajaIconCanvasItemAccessibleActionContext; + +typedef struct +{ + CajaIconCanvasItem *icon_item; + EelIRect icon_rect; + RectangleSide side; + int position; + int index; + GList *emblem; +} EmblemLayout; + +static int click_policy_auto_value; + +static void caja_icon_canvas_item_text_interface_init (EelAccessibleTextIface *iface); + +G_DEFINE_TYPE_WITH_CODE (CajaIconCanvasItem, caja_icon_canvas_item, EEL_TYPE_CANVAS_ITEM, + G_IMPLEMENT_INTERFACE (EEL_TYPE_ACCESSIBLE_TEXT, + caja_icon_canvas_item_text_interface_init)); + +/* private */ +static void draw_label_text (CajaIconCanvasItem *item, + GdkDrawable *drawable, + gboolean create_mask, + EelIRect icon_rect); +static void measure_label_text (CajaIconCanvasItem *item); +static void get_icon_canvas_rectangle (CajaIconCanvasItem *item, + EelIRect *rect); +static void emblem_layout_reset (EmblemLayout *layout, + CajaIconCanvasItem *icon_item, + EelIRect icon_rect, + gboolean is_rtl); +static gboolean emblem_layout_next (EmblemLayout *layout, + GdkPixbuf **emblem_pixbuf, + EelIRect *emblem_rect, + gboolean is_rtl); +static void draw_pixbuf (GdkPixbuf *pixbuf, + GdkDrawable *drawable, + int x, + int y); +static PangoLayout *get_label_layout (PangoLayout **layout, + CajaIconCanvasItem *item, + const char *text); +static void draw_label_layout (CajaIconCanvasItem *item, + GdkDrawable *drawable, + PangoLayout *layout, + gboolean highlight, + GdkColor *label_color, + int x, + int y, + GdkGC *gc); +static gboolean hit_test_stretch_handle (CajaIconCanvasItem *item, + EelIRect canvas_rect, + GtkCornerType *corner); +static void draw_embedded_text (CajaIconCanvasItem *icon_item, + GdkDrawable *drawable, + int x, + int y); + +static void caja_icon_canvas_item_ensure_bounds_up_to_date (CajaIconCanvasItem *icon_item); + + +static gpointer accessible_parent_class = NULL; + +static GQuark accessible_private_data_quark = 0; + +static const char *caja_icon_canvas_item_accessible_action_names[] = +{ + "open", + "menu", + NULL +}; + +static const char *caja_icon_canvas_item_accessible_action_descriptions[] = +{ + "Open item", + "Popup context menu", + NULL +}; + + +/* Object initialization function for the icon item. */ +static void +caja_icon_canvas_item_init (CajaIconCanvasItem *icon_item) +{ + static gboolean setup_auto_enums = FALSE; + + if (!setup_auto_enums) + { + eel_preferences_add_auto_enum + (CAJA_PREFERENCES_CLICK_POLICY, + &click_policy_auto_value); + setup_auto_enums = TRUE; + } + + icon_item->details = G_TYPE_INSTANCE_GET_PRIVATE ((icon_item), CAJA_TYPE_ICON_CANVAS_ITEM, CajaIconCanvasItemDetails); + caja_icon_canvas_item_invalidate_label_size (icon_item); +} + +static void +caja_icon_canvas_item_finalize (GObject *object) +{ + CajaIconCanvasItemDetails *details; + + g_assert (CAJA_IS_ICON_CANVAS_ITEM (object)); + + details = CAJA_ICON_CANVAS_ITEM (object)->details; + + if (details->pixbuf != NULL) + { + g_object_unref (details->pixbuf); + } + + if (details->text_util != NULL) + { + g_object_unref (details->text_util); + } + + eel_gdk_pixbuf_list_free (details->emblem_pixbufs); + g_free (details->editable_text); + g_free (details->additional_text); + g_free (details->attach_points); + + if (details->rendered_pixbuf != NULL) + { + g_object_unref (details->rendered_pixbuf); + } + + if (details->editable_text_layout != NULL) + { + g_object_unref (details->editable_text_layout); + } + + if (details->additional_text_layout != NULL) + { + g_object_unref (details->additional_text_layout); + } + + if (details->embedded_text_layout != NULL) + { + g_object_unref (details->embedded_text_layout); + } + + g_free (details->embedded_text); + + G_OBJECT_CLASS (caja_icon_canvas_item_parent_class)->finalize (object); +} + +/* Currently we require pixbufs in this format (for hit testing). + * Perhaps gdk-pixbuf will be changed so it can do the hit testing + * and we won't have this requirement any more. + */ +static gboolean +pixbuf_is_acceptable (GdkPixbuf *pixbuf) +{ + return gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB + && ((!gdk_pixbuf_get_has_alpha (pixbuf) + && gdk_pixbuf_get_n_channels (pixbuf) == 3) + || (gdk_pixbuf_get_has_alpha (pixbuf) + && gdk_pixbuf_get_n_channels (pixbuf) == 4)) + && gdk_pixbuf_get_bits_per_sample (pixbuf) == 8; +} + +static void +caja_icon_canvas_item_invalidate_bounds_cache (CajaIconCanvasItem *item) +{ + item->details->bounds_cached = FALSE; +} + +/* invalidate the text width and height cached in the item details. */ +void +caja_icon_canvas_item_invalidate_label_size (CajaIconCanvasItem *item) +{ + if (item->details->editable_text_layout != NULL) + { + pango_layout_context_changed (item->details->editable_text_layout); + } + if (item->details->additional_text_layout != NULL) + { + pango_layout_context_changed (item->details->additional_text_layout); + } + if (item->details->embedded_text_layout != NULL) + { + pango_layout_context_changed (item->details->embedded_text_layout); + } + caja_icon_canvas_item_invalidate_bounds_cache (item); + item->details->text_width = -1; + item->details->text_height = -1; + item->details->text_height_for_layout = -1; + item->details->text_height_for_entire_text = -1; + item->details->editable_text_height = -1; +} + +/* Set property handler for the icon item. */ +static void +caja_icon_canvas_item_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + CajaIconCanvasItem *item; + CajaIconCanvasItemDetails *details; + + item = CAJA_ICON_CANVAS_ITEM (object); + details = item->details; + + switch (property_id) + { + + case PROP_EDITABLE_TEXT: + if (eel_strcmp (details->editable_text, + g_value_get_string (value)) == 0) + { + return; + } + + g_free (details->editable_text); + details->editable_text = g_strdup (g_value_get_string (value)); + if (details->text_util) + { + AtkObject *accessible; + + gail_text_util_text_setup (details->text_util, + details->editable_text); + accessible = eel_accessibility_get_atk_object (item); + g_object_notify (G_OBJECT(accessible), "accessible-name"); + } + + caja_icon_canvas_item_invalidate_label_size (item); + if (details->editable_text_layout) + { + g_object_unref (details->editable_text_layout); + details->editable_text_layout = NULL; + } + break; + + case PROP_ADDITIONAL_TEXT: + if (eel_strcmp (details->additional_text, + g_value_get_string (value)) == 0) + { + return; + } + + g_free (details->additional_text); + details->additional_text = g_strdup (g_value_get_string (value)); + + caja_icon_canvas_item_invalidate_label_size (item); + if (details->additional_text_layout) + { + g_object_unref (details->additional_text_layout); + details->additional_text_layout = NULL; + } + break; + + case PROP_HIGHLIGHTED_FOR_SELECTION: + if (!details->is_highlighted_for_selection == !g_value_get_boolean (value)) + { + return; + } + details->is_highlighted_for_selection = g_value_get_boolean (value); + caja_icon_canvas_item_invalidate_label_size (item); + break; + + case PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS: + if (!details->is_highlighted_as_keyboard_focus == !g_value_get_boolean (value)) + { + return; + } + details->is_highlighted_as_keyboard_focus = g_value_get_boolean (value); + + if (details->is_highlighted_as_keyboard_focus) + { + AtkObject *atk_object = eel_accessibility_for_object (object); + atk_focus_tracker_notify (atk_object); + } + break; + + case PROP_HIGHLIGHTED_FOR_DROP: + if (!details->is_highlighted_for_drop == !g_value_get_boolean (value)) + { + return; + } + details->is_highlighted_for_drop = g_value_get_boolean (value); + break; + + case PROP_HIGHLIGHTED_FOR_CLIPBOARD: + if (!details->is_highlighted_for_clipboard == !g_value_get_boolean (value)) + { + return; + } + details->is_highlighted_for_clipboard = g_value_get_boolean (value); + break; + + default: + g_warning ("caja_icons_view_item_item_set_arg on unknown argument"); + return; + } + + eel_canvas_item_request_update (EEL_CANVAS_ITEM (object)); +} + +/* Get property handler for the icon item */ +static void +caja_icon_canvas_item_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + CajaIconCanvasItemDetails *details; + + details = CAJA_ICON_CANVAS_ITEM (object)->details; + + switch (property_id) + { + + case PROP_EDITABLE_TEXT: + g_value_set_string (value, details->editable_text); + break; + + case PROP_ADDITIONAL_TEXT: + g_value_set_string (value, details->additional_text); + break; + + case PROP_HIGHLIGHTED_FOR_SELECTION: + g_value_set_boolean (value, details->is_highlighted_for_selection); + break; + + case PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS: + g_value_set_boolean (value, details->is_highlighted_as_keyboard_focus); + break; + + case PROP_HIGHLIGHTED_FOR_DROP: + g_value_set_boolean (value, details->is_highlighted_for_drop); + break; + + case PROP_HIGHLIGHTED_FOR_CLIPBOARD: + g_value_set_boolean (value, details->is_highlighted_for_clipboard); + break; + + default: + g_warning ("invalid property %d", property_id); + break; + } +} + +GdkPixmap * +caja_icon_canvas_item_get_image (CajaIconCanvasItem *item, + GdkBitmap **mask, + GdkColormap *colormap) +{ + GdkPixmap *pixmap; + EelCanvas *canvas; + GdkScreen *screen; + GdkGC *gc; + int width, height; + int item_offset_x, item_offset_y; + EelIRect icon_rect; + EelIRect emblem_rect; + GdkPixbuf *pixbuf; + GdkPixbuf *emblem_pixbuf; + EmblemLayout emblem_layout; + double item_x, item_y; + gboolean is_rtl; + cairo_t *cr; + + g_return_val_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item), NULL); + + canvas = EEL_CANVAS_ITEM (item)->canvas; + screen = gdk_colormap_get_screen (colormap); + + /* Assume we're updated so canvas item data is right */ + + /* Calculate the offset from the top-left corner of the + new image to the item position (where the pixmap is placed) */ + eel_canvas_world_to_window (canvas, + item->details->x, item->details->y, + &item_x, &item_y); + + item_offset_x = item_x - EEL_CANVAS_ITEM (item)->x1; + item_offset_y = item_y - EEL_CANVAS_ITEM (item)->y1; + + /* Calculate the width of the item */ + width = EEL_CANVAS_ITEM (item)->x2 - EEL_CANVAS_ITEM (item)->x1; + height = EEL_CANVAS_ITEM (item)->y2 - EEL_CANVAS_ITEM (item)->y1; + + pixmap = gdk_pixmap_new (gdk_screen_get_root_window (screen), + width, height, + gdk_visual_get_depth (gdk_colormap_get_visual (colormap))); + gdk_drawable_set_colormap (GDK_DRAWABLE (pixmap), colormap); + + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, + TRUE, + gdk_pixbuf_get_bits_per_sample (item->details->pixbuf), + width, height); + gdk_pixbuf_fill (pixbuf, 0x00000000); + + gdk_pixbuf_composite (item->details->pixbuf, pixbuf, + item_offset_x, item_offset_y, + gdk_pixbuf_get_width (item->details->pixbuf), + gdk_pixbuf_get_height (item->details->pixbuf), + item_offset_x, item_offset_y, 1.0, 1.0, + GDK_INTERP_BILINEAR, 255); + + icon_rect.x0 = item_offset_x; + icon_rect.y0 = item_offset_y; + icon_rect.x1 = item_offset_x + gdk_pixbuf_get_width (item->details->pixbuf); + icon_rect.y1 = item_offset_y + gdk_pixbuf_get_height (item->details->pixbuf); + + + is_rtl = caja_icon_container_is_layout_rtl (CAJA_ICON_CONTAINER (canvas)); + + emblem_layout_reset (&emblem_layout, item, icon_rect, is_rtl); + while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) + { + gdk_pixbuf_composite (emblem_pixbuf, pixbuf, + emblem_rect.x0, emblem_rect.y0, + gdk_pixbuf_get_width (emblem_pixbuf), + gdk_pixbuf_get_height (emblem_pixbuf), + emblem_rect.x0, emblem_rect.y0, + 1.0, 1.0, + GDK_INTERP_BILINEAR, 255); + } + + /* clear the pixmap */ + cr = gdk_cairo_create (pixmap); + cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR); + cairo_paint (cr); + cairo_destroy (cr); + + gc = gdk_gc_new (pixmap); + gdk_draw_pixbuf (pixmap, gc, pixbuf, + 0, 0, 0, 0, + gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf), + GDK_RGB_DITHER_NORMAL, + 0, 0); + g_object_unref (gc); + + *mask = gdk_pixmap_new (gdk_screen_get_root_window (screen), + width, height, + 1); + gc = gdk_gc_new (*mask); + gdk_draw_rectangle (*mask, gc, + TRUE, + 0, 0, + width, height); + g_object_unref (gc); + + gdk_pixbuf_render_threshold_alpha (pixbuf, *mask, + 0, 0, 0, 0, + gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf), + 128); + + draw_embedded_text (item, GDK_DRAWABLE (pixmap), + item_offset_x, item_offset_y); + + draw_label_text (item, GDK_DRAWABLE (pixmap), FALSE, icon_rect); + draw_label_text (item, GDK_DRAWABLE (*mask), TRUE, icon_rect); + + g_object_unref (pixbuf); + + return pixmap; +} + +void +caja_icon_canvas_item_set_image (CajaIconCanvasItem *item, + GdkPixbuf *image) +{ + CajaIconCanvasItemDetails *details; + + g_return_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item)); + g_return_if_fail (image == NULL || pixbuf_is_acceptable (image)); + + details = item->details; + if (details->pixbuf == image) + { + return; + } + + if (image != NULL) + { + g_object_ref (image); + } + if (details->pixbuf != NULL) + { + g_object_unref (details->pixbuf); + } + if (details->rendered_pixbuf != NULL) + { + g_object_unref (details->rendered_pixbuf); + details->rendered_pixbuf = NULL; + } + + details->pixbuf = image; + + caja_icon_canvas_item_invalidate_bounds_cache (item); + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); +} + +void +caja_icon_canvas_item_set_emblems (CajaIconCanvasItem *item, + GList *emblem_pixbufs) +{ + GList *p; + + g_return_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item)); + + g_assert (item->details->emblem_pixbufs != emblem_pixbufs || emblem_pixbufs == NULL); + + /* The case where the emblems are identical is fairly common, + * so lets take the time to check for it. + */ + if (eel_g_list_equal (item->details->emblem_pixbufs, emblem_pixbufs)) + { + return; + } + + /* Check if they are acceptable. */ + for (p = emblem_pixbufs; p != NULL; p = p->next) + { + g_return_if_fail (pixbuf_is_acceptable (p->data)); + } + + /* Take in the new list of emblems. */ + eel_gdk_pixbuf_list_ref (emblem_pixbufs); + eel_gdk_pixbuf_list_free (item->details->emblem_pixbufs); + item->details->emblem_pixbufs = g_list_copy (emblem_pixbufs); + + caja_icon_canvas_item_invalidate_bounds_cache (item); + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); +} + +void +caja_icon_canvas_item_set_attach_points (CajaIconCanvasItem *item, + GdkPoint *attach_points, + int n_attach_points) +{ + g_free (item->details->attach_points); + item->details->attach_points = NULL; + item->details->n_attach_points = 0; + + if (attach_points != NULL && n_attach_points != 0) + { + item->details->attach_points = g_memdup (attach_points, n_attach_points * sizeof (GdkPoint)); + item->details->n_attach_points = n_attach_points; + } + + caja_icon_canvas_item_invalidate_bounds_cache (item); +} + +void +caja_icon_canvas_item_set_embedded_text_rect (CajaIconCanvasItem *item, + const GdkRectangle *text_rect) +{ + item->details->embedded_text_rect = *text_rect; + + caja_icon_canvas_item_invalidate_bounds_cache (item); + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); +} + +void +caja_icon_canvas_item_set_embedded_text (CajaIconCanvasItem *item, + const char *text) +{ + g_free (item->details->embedded_text); + item->details->embedded_text = g_strdup (text); + + if (item->details->embedded_text_layout != NULL) + { + if (text != NULL) + { + pango_layout_set_text (item->details->embedded_text_layout, text, -1); + } + else + { + pango_layout_set_text (item->details->embedded_text_layout, "", -1); + } + } + + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); +} + + +/* Recomputes the bounding box of a icon canvas item. + * This is a generic implementation that could be used for any canvas item + * class, it has no assumptions about how the item is used. + */ +static void +recompute_bounding_box (CajaIconCanvasItem *icon_item, + double i2w_dx, double i2w_dy) +{ + /* The bounds stored in the item is the same as what get_bounds + * returns, except it's in canvas coordinates instead of the item's + * parent's coordinates. + */ + + EelCanvasItem *item; + EelDPoint top_left, bottom_right; + + item = EEL_CANVAS_ITEM (icon_item); + + eel_canvas_item_get_bounds (item, + &top_left.x, &top_left.y, + &bottom_right.x, &bottom_right.y); + + top_left.x += i2w_dx; + top_left.y += i2w_dy; + bottom_right.x += i2w_dx; + bottom_right.y += i2w_dy; + eel_canvas_w2c_d (item->canvas, + top_left.x, top_left.y, + &item->x1, &item->y1); + eel_canvas_w2c_d (item->canvas, + bottom_right.x, bottom_right.y, + &item->x2, &item->y2); +} + +static EelIRect +compute_text_rectangle (const CajaIconCanvasItem *item, + EelIRect icon_rectangle, + gboolean canvas_coords, + CajaIconCanvasItemBoundsUsage usage) +{ + EelIRect text_rectangle; + double pixels_per_unit; + double text_width, text_height, text_height_for_layout, text_height_for_entire_text, real_text_height, text_dx; + + pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit; + if (canvas_coords) + { + text_width = item->details->text_width; + text_height = item->details->text_height; + text_height_for_layout = item->details->text_height_for_layout; + text_height_for_entire_text = item->details->text_height_for_entire_text; + text_dx = item->details->text_dx; + } + else + { + text_width = item->details->text_width / pixels_per_unit; + text_height = item->details->text_height / pixels_per_unit; + text_height_for_layout = item->details->text_height_for_layout / pixels_per_unit; + text_height_for_entire_text = item->details->text_height_for_entire_text / pixels_per_unit; + text_dx = item->details->text_dx / pixels_per_unit; + } + + if (CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas)->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE) + { + if (!caja_icon_container_is_layout_rtl (CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas))) + { + text_rectangle.x0 = icon_rectangle.x1; + text_rectangle.x1 = text_rectangle.x0 + text_dx + text_width; + } + else + { + text_rectangle.x1 = icon_rectangle.x0; + text_rectangle.x0 = text_rectangle.x1 - text_dx - text_width; + } + + /* VOODOO-TODO */ +#if 0 + if (for_layout) + { + /* in this case, we should be more smart and calculate the size according to the maximum + * number of lines fitting next to the icon. However, this requires a more complex layout logic. + * It would mean that when measuring the label, the icon dimensions must be known already, + * and we + * 1. start with an unlimited layout + * 2. measure how many lines of this layout fit next to the icon + * 3. limit the number of lines to the given number of fitting lines + */ + real_text_height = VOODOO(); + } + else + { +#endif + real_text_height = text_height_for_entire_text; +#if 0 + } +#endif + + text_rectangle.y0 = (icon_rectangle.y0 + icon_rectangle.y1) / 2- (int) real_text_height / 2; + text_rectangle.y1 = text_rectangle.y0 + real_text_height; + } + else + { + text_rectangle.x0 = (icon_rectangle.x0 + icon_rectangle.x1) / 2 - (int) text_width / 2; + text_rectangle.y0 = icon_rectangle.y1; + text_rectangle.x1 = text_rectangle.x0 + text_width; + + if (usage == BOUNDS_USAGE_FOR_LAYOUT) + { + real_text_height = text_height_for_layout; + } + else if (usage == BOUNDS_USAGE_FOR_ENTIRE_ITEM) + { + real_text_height = text_height_for_entire_text; + } + else if (usage == BOUNDS_USAGE_FOR_DISPLAY) + { + real_text_height = text_height; + } + else + { + g_assert_not_reached (); + } + + text_rectangle.y1 = text_rectangle.y0 + real_text_height + LABEL_OFFSET / pixels_per_unit; + } + + return text_rectangle; +} + +static EelIRect +get_current_canvas_bounds (EelCanvasItem *item) +{ + EelIRect bounds; + + g_assert (EEL_IS_CANVAS_ITEM (item)); + + bounds.x0 = item->x1; + bounds.y0 = item->y1; + bounds.x1 = item->x2; + bounds.y1 = item->y2; + + return bounds; +} + +void +caja_icon_canvas_item_update_bounds (CajaIconCanvasItem *item, + double i2w_dx, double i2w_dy) +{ + EelIRect before, after, emblem_rect; + EmblemLayout emblem_layout; + EelCanvasItem *canvas_item; + GdkPixbuf *emblem_pixbuf; + gboolean is_rtl; + + canvas_item = EEL_CANVAS_ITEM (item); + + /* Compute new bounds. */ + before = get_current_canvas_bounds (canvas_item); + recompute_bounding_box (item, i2w_dx, i2w_dy); + after = get_current_canvas_bounds (canvas_item); + + /* If the bounds didn't change, we are done. */ + if (eel_irect_equal (before, after)) + { + return; + } + + is_rtl = caja_icon_container_is_layout_rtl (CAJA_ICON_CONTAINER (canvas_item->canvas)); + + /* Update canvas and text rect cache */ + get_icon_canvas_rectangle (item, &item->details->canvas_rect); + item->details->text_rect = compute_text_rectangle (item, item->details->canvas_rect, + TRUE, BOUNDS_USAGE_FOR_DISPLAY); + + /* Update emblem rect cache */ + item->details->emblem_rect.x0 = 0; + item->details->emblem_rect.x1 = 0; + item->details->emblem_rect.y0 = 0; + item->details->emblem_rect.y1 = 0; + emblem_layout_reset (&emblem_layout, item, item->details->canvas_rect, is_rtl); + while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) + { + eel_irect_union (&item->details->emblem_rect, &item->details->emblem_rect, &emblem_rect); + } + + /* queue a redraw. */ + eel_canvas_request_redraw (canvas_item->canvas, + before.x0, before.y0, + before.x1 + 1, before.y1 + 1); +} + +/* Update handler for the icon canvas item. */ +static void +caja_icon_canvas_item_update (EelCanvasItem *item, + double i2w_dx, double i2w_dy, + gint flags) +{ + caja_icon_canvas_item_update_bounds (CAJA_ICON_CANVAS_ITEM (item), i2w_dx, i2w_dy); + + eel_canvas_item_request_redraw (EEL_CANVAS_ITEM (item)); + + EEL_CANVAS_ITEM_CLASS (caja_icon_canvas_item_parent_class)->update (item, i2w_dx, i2w_dy, flags); +} + +/* Rendering */ +static gboolean +in_single_click_mode (void) +{ + return click_policy_auto_value == CAJA_CLICK_POLICY_SINGLE; +} + + +/* Utility routine to create a rectangle with rounded corners. + * This could possibly move to Eel as a general purpose routine. + */ +static void +make_round_rect (cairo_t *cr, + double x, + double y, + double width, + double height, + double radius) +{ + double cx, cy; + + width -= 2 * radius; + height -= 2 * radius; + + cairo_move_to (cr, x + radius, y); + + cairo_rel_line_to (cr, width, 0.0); + + cairo_get_current_point (cr, &cx, &cy); + cairo_arc (cr, cx, cy + radius, radius, 3.0 * G_PI_2, 0); + + cairo_rel_line_to (cr, 0.0, height); + + cairo_get_current_point (cr, &cx, &cy); + cairo_arc (cr, cx - radius, cy, radius, 0, G_PI_2); + + cairo_rel_line_to (cr, - width, 0.0); + + cairo_get_current_point (cr, &cx, &cy); + cairo_arc (cr, cx, cy - radius, radius, G_PI_2, G_PI); + + cairo_rel_line_to (cr, 0.0, -height); + + cairo_get_current_point (cr, &cx, &cy); + cairo_arc (cr, cx + radius, cy, radius, G_PI, 3.0 * G_PI_2); + + cairo_close_path (cr); +} + +static void +draw_frame (CajaIconCanvasItem *item, + GdkDrawable *drawable, + guint color, + gboolean create_mask, + int x, + int y, + int width, + int height) +{ + CajaIconContainer *container; + cairo_t *cr; + + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + + /* Get a cairo context */ + cr = gdk_cairo_create (drawable); + + /* Set the rounded rect clip region. Magic rounding value taken + * from old code. + */ + make_round_rect (cr, x, y, width, height, 5); + + if (create_mask) + { + /* Dunno how to do this with cairo... + * It used to threshold the rendering so that the + * bitmask didn't show white where alpha < 0.5 + */ + } + + cairo_set_source_rgba (cr, + EEL_RGBA_COLOR_GET_R (color) / 255.0, + EEL_RGBA_COLOR_GET_G (color) / 255.0, + EEL_RGBA_COLOR_GET_B (color) / 255.0, + EEL_RGBA_COLOR_GET_A (color) / 255.0); + + /* Paint into drawable now that we have set up the color and opacity */ + cairo_fill (cr); + + /* Clean up now that drawing is complete */ + cairo_destroy (cr); +} + +/* Keep these for a bit while we work on performance of draw_or_measure_label_text. */ +/* + #define PERFORMANCE_TEST_DRAW_DISABLE + #define PERFORMANCE_TEST_MEASURE_DISABLE +*/ + +/* This gets the size of the layout from the position of the layout. + * This means that if the layout is right aligned we get the full width + * of the layout, not just the width of the text snippet on the right side + */ +static void +layout_get_full_size (PangoLayout *layout, + int *width, + int *height, + int *dx) +{ + PangoRectangle logical_rect; + int the_width, total_width; + + pango_layout_get_extents (layout, NULL, &logical_rect); + the_width = (logical_rect.width + PANGO_SCALE / 2) / PANGO_SCALE; + total_width = (logical_rect.x + logical_rect.width + PANGO_SCALE / 2) / PANGO_SCALE; + + if (width != NULL) + { + *width = the_width; + } + + if (height != NULL) + { + *height = (logical_rect.height + PANGO_SCALE / 2) / PANGO_SCALE; + } + + if (dx != NULL) + { + *dx = total_width - the_width; + } +} + +static void +layout_get_size_for_layout (PangoLayout *layout, + int max_layout_line_count, + int height_for_entire_text, + int *height_for_layout) +{ + PangoLayoutIter *iter; + PangoRectangle logical_rect; + int i; + + /* only use the first max_layout_line_count lines for the gridded auto layout */ + if (pango_layout_get_line_count (layout) <= max_layout_line_count) + { + *height_for_layout = height_for_entire_text; + } + else + { + *height_for_layout = 0; + iter = pango_layout_get_iter (layout); + /* VOODOO-TODO, determine number of lines based on the icon size for text besides icon. + * cf. compute_text_rectangle() */ + for (i = 0; i < max_layout_line_count; i++) + { + pango_layout_iter_get_line_extents (iter, NULL, &logical_rect); + *height_for_layout += (logical_rect.height + PANGO_SCALE / 2) / PANGO_SCALE; + + if (!pango_layout_iter_next_line (iter)) + { + break; + } + + *height_for_layout += pango_layout_get_spacing (layout); + } + pango_layout_iter_free (iter); + } +} + +#define IS_COMPACT_VIEW(container) \ + ((container->details->layout_mode == CAJA_ICON_LAYOUT_T_B_L_R || \ + container->details->layout_mode == CAJA_ICON_LAYOUT_T_B_R_L) && \ + container->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE) + +#define TEXT_BACK_PADDING_X 4 +#define TEXT_BACK_PADDING_Y 1 + +static void +prepare_pango_layout_width (CajaIconCanvasItem *item, + PangoLayout *layout) +{ + if (caja_icon_canvas_item_get_max_text_width (item) < 0) + { + pango_layout_set_width (layout, -1); + } + else + { + pango_layout_set_width (layout, floor (caja_icon_canvas_item_get_max_text_width (item)) * PANGO_SCALE); + pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END); + } +} + +static void +prepare_pango_layout_for_measure_entire_text (CajaIconCanvasItem *item, + PangoLayout *layout) +{ + CajaIconContainer *container; + + prepare_pango_layout_width (item, layout); + + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + + if (IS_COMPACT_VIEW (container)) + { + pango_layout_set_height (layout, -1); + } + else + { + pango_layout_set_height (layout, G_MININT); + } +} + +static void +prepare_pango_layout_for_draw (CajaIconCanvasItem *item, + PangoLayout *layout) +{ + CajaIconCanvasItemDetails *details; + CajaIconContainer *container; + gboolean needs_highlight; + + prepare_pango_layout_width (item, layout); + + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + details = item->details; + + needs_highlight = details->is_highlighted_for_selection || details->is_highlighted_for_drop; + + if (IS_COMPACT_VIEW (container)) + { + pango_layout_set_height (layout, -1); + } + else if (needs_highlight || + details->is_prelit || + details->is_highlighted_as_keyboard_focus || + details->entire_text || + container->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE) + { + /* VOODOO-TODO, cf. compute_text_rectangle() */ + pango_layout_set_height (layout, G_MININT); + } + else + { + /* TODO? we might save some resources, when the re-layout is not neccessary in case + * the layout height already fits into max. layout lines. But pango should figure this + * out itself (which it doesn't ATM). + */ + pango_layout_set_height (layout, + caja_icon_container_get_max_layout_lines_for_pango (container)); + } +} + +static void +measure_label_text (CajaIconCanvasItem *item) +{ + CajaIconCanvasItemDetails *details; + CajaIconContainer *container; + gint editable_height, editable_height_for_layout, editable_height_for_entire_text, editable_width, editable_dx; + gint additional_height, additional_width, additional_dx; + EelCanvasItem *canvas_item; + PangoLayout *editable_layout; + PangoLayout *additional_layout; + gboolean have_editable, have_additional, needs_highlight; + int max_text_width; + + /* check to see if the cached values are still valid; if so, there's + * no work necessary + */ + + if (item->details->text_width >= 0 && item->details->text_height >= 0) + { + return; + } + + details = item->details; + needs_highlight = details->is_highlighted_for_selection || details->is_highlighted_for_drop; + + have_editable = details->editable_text != NULL && details->editable_text[0] != '\0'; + have_additional = details->additional_text != NULL && details->additional_text[0] != '\0'; + + /* No font or no text, then do no work. */ + if (!have_editable && !have_additional) + { + details->text_height = 0; + details->text_height_for_layout = 0; + details->text_height_for_entire_text = 0; + details->text_width = 0; + return; + } + +#ifdef PERFORMANCE_TEST_MEASURE_DISABLE + /* fake out the width */ + details->text_width = 80; + details->text_height = 20; + details->text_height_for_layout = 20; + details->text_height_for_entire_text = 20; + return; +#endif + + canvas_item = EEL_CANVAS_ITEM (item); + + editable_width = 0; + editable_height = 0; + editable_height_for_layout = 0; + editable_height_for_entire_text = 0; + editable_dx = 0; + additional_width = 0; + additional_height = 0; + additional_dx = 0; + + max_text_width = floor (caja_icon_canvas_item_get_max_text_width (item)); + + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + editable_layout = NULL; + additional_layout = NULL; + + if (have_editable) + { + /* first, measure required text height: editable_height_for_entire_text + * then, measure text height applicable for layout: editable_height_for_layout + * next, measure actually displayed height: editable_height + */ + editable_layout = get_label_layout (&details->editable_text_layout, item, details->editable_text); + + prepare_pango_layout_for_measure_entire_text (item, editable_layout); + layout_get_full_size (editable_layout, + NULL, + &editable_height_for_entire_text, + NULL); + layout_get_size_for_layout (editable_layout, + caja_icon_container_get_max_layout_lines (container), + editable_height_for_entire_text, + &editable_height_for_layout); + + prepare_pango_layout_for_draw (item, editable_layout); + layout_get_full_size (editable_layout, + &editable_width, + &editable_height, + &editable_dx); + } + + if (have_additional) + { + additional_layout = get_label_layout (&details->additional_text_layout, item, details->additional_text); + prepare_pango_layout_for_draw (item, additional_layout); + layout_get_full_size (additional_layout, + &additional_width, &additional_height, &additional_dx); + } + + details->editable_text_height = editable_height; + + if (editable_width > additional_width) + { + details->text_width = editable_width; + details->text_dx = editable_dx; + } + else + { + details->text_width = additional_width; + details->text_dx = additional_dx; + } + + if (have_additional) + { + details->text_height = editable_height + LABEL_LINE_SPACING + additional_height; + details->text_height_for_layout = editable_height_for_layout + LABEL_LINE_SPACING + additional_height; + details->text_height_for_entire_text = editable_height_for_entire_text + LABEL_LINE_SPACING + additional_height; + } + else + { + details->text_height = editable_height; + details->text_height_for_layout = editable_height_for_layout; + details->text_height_for_entire_text = editable_height_for_entire_text; + } + + /* add some extra space for highlighting even when we don't highlight so things won't move */ + + /* extra slop for nicer highlighting */ + details->text_height += TEXT_BACK_PADDING_Y*2; + details->text_height_for_layout += TEXT_BACK_PADDING_Y*2; + details->text_height_for_entire_text += TEXT_BACK_PADDING_Y*2; + details->editable_text_height += TEXT_BACK_PADDING_Y*2; + + /* extra to make it look nicer */ + details->text_width += TEXT_BACK_PADDING_X*2; + + if (editable_layout) + { + g_object_unref (editable_layout); + } + + if (additional_layout) + { + g_object_unref (additional_layout); + } +} + +static void +draw_label_text (CajaIconCanvasItem *item, + GdkDrawable *drawable, + gboolean create_mask, + EelIRect icon_rect) +{ + EelCanvasItem *canvas_item; + CajaIconCanvasItemDetails *details; + CajaIconContainer *container; + PangoLayout *editable_layout; + PangoLayout *additional_layout; + GdkColor *label_color; + GdkGC *gc; + gboolean have_editable, have_additional; + gboolean needs_frame, needs_highlight, prelight_label, is_rtl_label_beside; + EelIRect text_rect; + int x; + int max_text_width; + +#ifdef PERFORMANCE_TEST_DRAW_DISABLE + return; +#endif + + gc = NULL; + + canvas_item = EEL_CANVAS_ITEM (item); + details = item->details; + + measure_label_text (item); + if (details->text_height == 0 || + details->text_width == 0) + { + return; + } + + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + + text_rect = compute_text_rectangle (item, icon_rect, TRUE, BOUNDS_USAGE_FOR_DISPLAY); + + needs_highlight = details->is_highlighted_for_selection || details->is_highlighted_for_drop; + is_rtl_label_beside = caja_icon_container_is_layout_rtl (container) && + container->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE; + + editable_layout = NULL; + additional_layout = NULL; + + have_editable = details->editable_text != NULL && details->editable_text[0] != '\0'; + have_additional = details->additional_text != NULL && details->additional_text[0] != '\0'; + g_assert (have_editable || have_additional); + + max_text_width = floor (caja_icon_canvas_item_get_max_text_width (item)); + + /* if the icon is highlighted, do some set-up */ + if (needs_highlight && !details->is_renaming) + { + draw_frame (item, + drawable, + gtk_widget_has_focus (GTK_WIDGET (container)) ? container->details->highlight_color_rgba : container->details->active_color_rgba, + create_mask, + is_rtl_label_beside ? text_rect.x0 + item->details->text_dx : text_rect.x0, + text_rect.y0, + is_rtl_label_beside ? text_rect.x1 - text_rect.x0 - item->details->text_dx : text_rect.x1 - text_rect.x0, + text_rect.y1 - text_rect.y0); + } + else if (!needs_highlight && !details->is_renaming && + (details->is_prelit || + details->is_highlighted_as_keyboard_focus)) + { + /* clear the underlying icons, where the text or overlaps them. */ + gdk_window_clear_area (gtk_layout_get_bin_window (&EEL_CANVAS (container)->layout), + text_rect.x0, + text_rect.y0, + text_rect.x1 - text_rect.x0, + text_rect.y1 - text_rect.y0); + } + + if (container->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE) + { + x = text_rect.x0 + 2; + } + else + { + x = text_rect.x0 + ((text_rect.x1 - text_rect.x0) - max_text_width) / 2; + } + + if (have_editable) + { + editable_layout = get_label_layout (&item->details->editable_text_layout, item, item->details->editable_text); + prepare_pango_layout_for_draw (item, editable_layout); + + gtk_widget_style_get (GTK_WIDGET (container), + "frame_text", &needs_frame, + "activate_prelight_icon_label", &prelight_label, + NULL); + if (needs_frame && !needs_highlight && details->text_width > 0 && details->text_height > 0) + { + if (!(prelight_label && item->details->is_prelit)) + { + draw_frame (item, + drawable, + container->details->normal_color_rgba, + create_mask, + text_rect.x0, + text_rect.y0, + text_rect.x1 - text_rect.x0, + text_rect.y1 - text_rect.y0); + } + else + { + draw_frame (item, + drawable, + container->details->prelight_color_rgba, + create_mask, + text_rect.x0, + text_rect.y0, + text_rect.x1 - text_rect.x0, + text_rect.y1 - text_rect.y0); + } + } + + gc = caja_icon_container_get_label_color_and_gc + (CAJA_ICON_CONTAINER (canvas_item->canvas), + &label_color, TRUE, needs_highlight, + prelight_label & item->details->is_prelit); + + draw_label_layout (item, drawable, + editable_layout, needs_highlight, + label_color, + x, + text_rect.y0 + TEXT_BACK_PADDING_Y, gc); + } + + if (have_additional) + { + additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text); + prepare_pango_layout_for_draw (item, additional_layout); + + gc = caja_icon_container_get_label_color_and_gc + (CAJA_ICON_CONTAINER (canvas_item->canvas), + &label_color, FALSE, needs_highlight, + FALSE); + + draw_label_layout (item, drawable, + additional_layout, needs_highlight, + label_color, + x, + text_rect.y0 + details->editable_text_height + LABEL_LINE_SPACING + TEXT_BACK_PADDING_Y, gc); + } + + if (!create_mask && item->details->is_highlighted_as_keyboard_focus) + { + gtk_paint_focus (gtk_widget_get_style (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas)), + drawable, + needs_highlight ? GTK_STATE_SELECTED : GTK_STATE_NORMAL, + NULL, + GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas), + "icon-container", + text_rect.x0, + text_rect.y0, + text_rect.x1 - text_rect.x0, + text_rect.y1 - text_rect.y0); + } + + if (editable_layout != NULL) + { + g_object_unref (editable_layout); + } + + if (additional_layout != NULL) + { + g_object_unref (additional_layout); + } +} + +void +caja_icon_canvas_item_set_is_visible (CajaIconCanvasItem *item, + gboolean visible) +{ + if (item->details->is_visible == visible) + return; + + item->details->is_visible = visible; + + if (!visible) + { + caja_icon_canvas_item_invalidate_label (item); + } +} + +void +caja_icon_canvas_item_invalidate_label (CajaIconCanvasItem *item) +{ + caja_icon_canvas_item_invalidate_label_size (item); + + if (item->details->editable_text_layout) + { + g_object_unref (item->details->editable_text_layout); + item->details->editable_text_layout = NULL; + } + + if (item->details->additional_text_layout) + { + g_object_unref (item->details->additional_text_layout); + item->details->additional_text_layout = NULL; + } + + if (item->details->embedded_text_layout) + { + g_object_unref (item->details->embedded_text_layout); + item->details->embedded_text_layout = NULL; + } +} + + +static GdkPixbuf * +get_knob_pixbuf (void) +{ + GdkPixbuf *knob_pixbuf; + char *knob_filename; + + knob_pixbuf = gtk_icon_theme_load_icon (gtk_icon_theme_get_default (), + "stock-caja-knob", + 8, 0, NULL); + if (!knob_pixbuf) + { + knob_filename = caja_pixmap_file ("knob.png"); + knob_pixbuf = gdk_pixbuf_new_from_file (knob_filename, NULL); + g_free (knob_filename); + } + + return knob_pixbuf; +} + +static void +draw_stretch_handles (CajaIconCanvasItem *item, GdkDrawable *drawable, + const EelIRect *rect) +{ + GtkWidget *widget; + GdkGC *gc; + GdkPixbuf *knob_pixbuf; + GdkBitmap *stipple; + int knob_width, knob_height; + GtkStyle *style; + + if (!item->details->show_stretch_handles) + { + return; + } + + widget = GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas); + style = gtk_widget_get_style (widget); + + gc = gdk_gc_new (drawable); + knob_pixbuf = get_knob_pixbuf (); + knob_width = gdk_pixbuf_get_width (knob_pixbuf); + knob_height = gdk_pixbuf_get_height (knob_pixbuf); + + stipple = eel_stipple_bitmap_for_screen ( + gdk_drawable_get_screen (GDK_DRAWABLE (drawable))); + + /* first draw the box */ + gdk_gc_set_rgb_fg_color (gc, &style->white); + gdk_draw_rectangle + (drawable, gc, FALSE, + rect->x0, + rect->y0, + rect->x1 - rect->x0 - 1, + rect->y1 - rect->y0 - 1); + + gdk_gc_set_rgb_fg_color (gc, &style->black); + gdk_gc_set_stipple (gc, stipple); + gdk_gc_set_fill (gc, GDK_STIPPLED); + gdk_draw_rectangle + (drawable, gc, FALSE, + rect->x0, + rect->y0, + rect->x1 - rect->x0 - 1, + rect->y1 - rect->y0 - 1); + + /* draw the stretch handles themselves */ + + draw_pixbuf (knob_pixbuf, drawable, rect->x0, rect->y0); + draw_pixbuf (knob_pixbuf, drawable, rect->x0, rect->y1 - knob_height); + draw_pixbuf (knob_pixbuf, drawable, rect->x1 - knob_width, rect->y0); + draw_pixbuf (knob_pixbuf, drawable, rect->x1 - knob_width, rect->y1 - knob_height); + g_object_unref (knob_pixbuf); + + g_object_unref (gc); +} + +static void +emblem_layout_reset (EmblemLayout *layout, CajaIconCanvasItem *icon_item, EelIRect icon_rect, gboolean is_rtl) +{ + layout->icon_item = icon_item; + layout->icon_rect = icon_rect; + layout->side = is_rtl ? LEFT_SIDE : RIGHT_SIDE; + layout->position = 0; + layout->index = 0; + layout->emblem = icon_item->details->emblem_pixbufs; +} + +static gboolean +emblem_layout_next (EmblemLayout *layout, + GdkPixbuf **emblem_pixbuf, + EelIRect *emblem_rect, + gboolean is_rtl) +{ + GdkPixbuf *pixbuf; + int width, height, x, y; + GdkPoint *attach_points; + + /* Check if we have layed out all of the pixbufs. */ + if (layout->emblem == NULL) + { + return FALSE; + } + + /* Get the pixbuf. */ + pixbuf = layout->emblem->data; + width = gdk_pixbuf_get_width (pixbuf); + height = gdk_pixbuf_get_height (pixbuf); + + + /* Advance to the next emblem. */ + layout->emblem = layout->emblem->next; + + attach_points = layout->icon_item->details->attach_points; + if (attach_points != NULL) + { + if (layout->index >= layout->icon_item->details->n_attach_points) + { + return FALSE; + } + + x = layout->icon_rect.x0 + attach_points[layout->index].x; + y = layout->icon_rect.y0 + attach_points[layout->index].y; + + layout->index += 1; + + /* Return the rectangle and pixbuf. */ + *emblem_pixbuf = pixbuf; + emblem_rect->x0 = x - width / 2; + emblem_rect->y0 = y - height / 2; + emblem_rect->x1 = emblem_rect->x0 + width; + emblem_rect->y1 = emblem_rect->y0 + height; + + return TRUE; + + } + + for (;;) + { + + /* Find the side to lay out along. */ + switch (layout->side) + { + case RIGHT_SIDE: + x = layout->icon_rect.x1; + y = is_rtl ? layout->icon_rect.y1 : layout->icon_rect.y0; + break; + case BOTTOM_SIDE: + x = is_rtl ? layout->icon_rect.x0 : layout->icon_rect.x1; + y = layout->icon_rect.y1; + break; + case LEFT_SIDE: + x = layout->icon_rect.x0; + y = is_rtl ? layout->icon_rect.y0 : layout->icon_rect.y1; + break; + case TOP_SIDE: + x = is_rtl ? layout->icon_rect.x1 : layout->icon_rect.x0; + y = layout->icon_rect.y0; + break; + default: + g_assert_not_reached (); + x = 0; + y = 0; + break; + } + if (layout->position != 0) + { + switch (layout->side) + { + case RIGHT_SIDE: + y += (is_rtl ? -1 : 1) * (layout->position + height / 2); + break; + case BOTTOM_SIDE: + x += (is_rtl ? 1 : -1 ) * (layout->position + width / 2); + break; + case LEFT_SIDE: + y += (is_rtl ? 1 : -1) * (layout->position + height / 2); + break; + case TOP_SIDE: + x += (is_rtl ? -1 : 1) * (layout->position + width / 2); + break; + } + } + + /* Check to see if emblem fits in current side. */ + if (x >= layout->icon_rect.x0 && x <= layout->icon_rect.x1 + && y >= layout->icon_rect.y0 && y <= layout->icon_rect.y1) + { + + /* It fits. */ + + /* Advance along the side. */ + switch (layout->side) + { + case RIGHT_SIDE: + case LEFT_SIDE: + layout->position += height + EMBLEM_SPACING; + break; + case BOTTOM_SIDE: + case TOP_SIDE: + layout->position += width + EMBLEM_SPACING; + break; + } + + /* Return the rectangle and pixbuf. */ + *emblem_pixbuf = pixbuf; + emblem_rect->x0 = x - width / 2; + emblem_rect->y0 = y - height / 2; + emblem_rect->x1 = emblem_rect->x0 + width; + emblem_rect->y1 = emblem_rect->y0 + height; + + return TRUE; + } + + /* It doesn't fit, so move to the next side. */ + switch (layout->side) + { + case RIGHT_SIDE: + layout->side = is_rtl ? TOP_SIDE : BOTTOM_SIDE; + break; + case BOTTOM_SIDE: + layout->side = is_rtl ? RIGHT_SIDE : LEFT_SIDE; + break; + case LEFT_SIDE: + layout->side = is_rtl ? BOTTOM_SIDE : TOP_SIDE; + break; + case TOP_SIDE: + default: + return FALSE; + } + layout->position = 0; + } +} + +static void +draw_pixbuf (GdkPixbuf *pixbuf, GdkDrawable *drawable, int x, int y) +{ + /* FIXME bugzilla.gnome.org 40703: + * Dither would be better if we passed dither values. + */ + gdk_draw_pixbuf (drawable, NULL, pixbuf, 0, 0, x, y, + gdk_pixbuf_get_width (pixbuf), + gdk_pixbuf_get_height (pixbuf), + GDK_RGB_DITHER_NORMAL, 0, 0); +} + +/* shared code to highlight or dim the passed-in pixbuf */ +static GdkPixbuf * +real_map_pixbuf (CajaIconCanvasItem *icon_item) +{ + EelCanvas *canvas; + char *audio_filename; + CajaIconContainer *container; + GdkPixbuf *temp_pixbuf, *old_pixbuf, *audio_pixbuf; + int emblem_size; + guint render_mode, saturation, brightness, lighten; + + temp_pixbuf = icon_item->details->pixbuf; + canvas = EEL_CANVAS_ITEM(icon_item)->canvas; + container = CAJA_ICON_CONTAINER (canvas); + + g_object_ref (temp_pixbuf); + + if (icon_item->details->is_prelit || + icon_item->details->is_highlighted_for_clipboard) + { + old_pixbuf = temp_pixbuf; + + gtk_widget_style_get (GTK_WIDGET (container), + "prelight_icon_render_mode", &render_mode, + "prelight_icon_saturation", &saturation, + "prelight_icon_brightness", &brightness, + "prelight_icon_lighten", &lighten, + NULL); + + if (render_mode > 0 || saturation < 255 || brightness < 255) + { + temp_pixbuf = eel_gdk_pixbuf_render (temp_pixbuf, + render_mode, + saturation, + brightness, + lighten, + container->details->prelight_icon_color_rgba); + g_object_unref (old_pixbuf); + } + + + + /* FIXME bugzilla.gnome.org 42471: This hard-wired image is inappropriate to + * this level of code, which shouldn't know that the + * preview is audio, nor should it have an icon + * hard-wired in. + */ + + /* if the icon is currently being previewed, superimpose an image to indicate that */ + /* audio is the only kind of previewing right now, so this code isn't as general as it could be */ + if (icon_item->details->is_active) + { + emblem_size = caja_icon_get_emblem_size_for_icon_size (gdk_pixbuf_get_width (temp_pixbuf)); + /* Load the audio symbol. */ + audio_filename = caja_pixmap_file ("audio.svg"); + if (audio_filename != NULL) + { + audio_pixbuf = gdk_pixbuf_new_from_file_at_scale (audio_filename, + emblem_size, emblem_size, + TRUE, + NULL); + } + else + { + audio_pixbuf = NULL; + } + + /* Composite it onto the icon. */ + if (audio_pixbuf != NULL) + { + gdk_pixbuf_composite + (audio_pixbuf, + temp_pixbuf, + 0, 0, + gdk_pixbuf_get_width (audio_pixbuf), + gdk_pixbuf_get_height (audio_pixbuf), + 0, 0, + 1.0, 1.0, + GDK_INTERP_BILINEAR, 0xFF); + + g_object_unref (audio_pixbuf); + } + + g_free (audio_filename); + } + } + + if (icon_item->details->is_highlighted_for_selection + || icon_item->details->is_highlighted_for_drop) + { + guint color; + + old_pixbuf = temp_pixbuf; + + color = gtk_widget_has_focus (GTK_WIDGET (canvas)) ? CAJA_ICON_CONTAINER (canvas)->details->highlight_color_rgba : CAJA_ICON_CONTAINER (canvas)->details->active_color_rgba; + + temp_pixbuf = eel_create_colorized_pixbuf (temp_pixbuf, + EEL_RGBA_COLOR_GET_R (color), + EEL_RGBA_COLOR_GET_G (color), + EEL_RGBA_COLOR_GET_B (color)); + + g_object_unref (old_pixbuf); + } + + if (!icon_item->details->is_active + && !icon_item->details->is_prelit + && !icon_item->details->is_highlighted_for_selection + && !icon_item->details->is_highlighted_for_drop) + { + old_pixbuf = temp_pixbuf; + + gtk_widget_style_get (GTK_WIDGET (container), + "normal_icon_render_mode", &render_mode, + "normal_icon_saturation", &saturation, + "normal_icon_brightness", &brightness, + "normal_icon_lighten", &lighten, + NULL); + if (render_mode > 0 || saturation < 255 || brightness < 255) + { + /* if theme requests colorization */ + temp_pixbuf = eel_gdk_pixbuf_render (temp_pixbuf, + render_mode, + saturation, + brightness, + lighten, + container->details->normal_icon_color_rgba); + g_object_unref (old_pixbuf); + } + } + + return temp_pixbuf; +} + +static GdkPixbuf * +map_pixbuf (CajaIconCanvasItem *icon_item) +{ + if (!(icon_item->details->rendered_pixbuf != NULL + && icon_item->details->rendered_is_active == icon_item->details->is_active + && icon_item->details->rendered_is_prelit == icon_item->details->is_prelit + && icon_item->details->rendered_is_highlighted_for_selection == icon_item->details->is_highlighted_for_selection + && icon_item->details->rendered_is_highlighted_for_drop == icon_item->details->is_highlighted_for_drop + && icon_item->details->rendered_is_highlighted_for_clipboard == icon_item->details->is_highlighted_for_clipboard + && (icon_item->details->is_highlighted_for_selection && icon_item->details->rendered_is_focused == gtk_widget_has_focus (GTK_WIDGET (EEL_CANVAS_ITEM (icon_item)->canvas))))) + { + if (icon_item->details->rendered_pixbuf != NULL) + { + g_object_unref (icon_item->details->rendered_pixbuf); + } + icon_item->details->rendered_pixbuf = real_map_pixbuf (icon_item); + icon_item->details->rendered_is_active = icon_item->details->is_active; + icon_item->details->rendered_is_prelit = icon_item->details->is_prelit; + icon_item->details->rendered_is_highlighted_for_selection = icon_item->details->is_highlighted_for_selection; + icon_item->details->rendered_is_highlighted_for_drop = icon_item->details->is_highlighted_for_drop; + icon_item->details->rendered_is_highlighted_for_clipboard = icon_item->details->is_highlighted_for_clipboard; + icon_item->details->rendered_is_focused = gtk_widget_has_focus (GTK_WIDGET (EEL_CANVAS_ITEM (icon_item)->canvas)); + } + + g_object_ref (icon_item->details->rendered_pixbuf); + + return icon_item->details->rendered_pixbuf; +} + +static void +draw_embedded_text (CajaIconCanvasItem *item, + GdkDrawable *drawable, + int x, int y) +{ + GdkGC *gc; + GdkRectangle clip_rect; + PangoLayout *layout; + PangoContext *context; + PangoFontDescription *desc; + + if (item->details->embedded_text == NULL || + item->details->embedded_text_rect.width == 0 || + item->details->embedded_text_rect.height == 0) + { + return; + } + + if (item->details->embedded_text_layout != NULL) + { + layout = g_object_ref (item->details->embedded_text_layout); + } + else + { + context = gtk_widget_get_pango_context (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas)); + layout = pango_layout_new (context); + pango_layout_set_text (layout, item->details->embedded_text, -1); + + desc = pango_font_description_from_string ("monospace 6"); + pango_layout_set_font_description (layout, desc); + pango_font_description_free (desc); + + if (item->details->is_visible) + { + item->details->embedded_text_layout = g_object_ref (layout); + } + } + + gc = gdk_gc_new (drawable); + + clip_rect.x = x + item->details->embedded_text_rect.x; + clip_rect.y = y + item->details->embedded_text_rect.y; + clip_rect.width = item->details->embedded_text_rect.width; + clip_rect.height = item->details->embedded_text_rect.height; + + gdk_gc_set_clip_rectangle (gc, &clip_rect); + + gdk_draw_layout (drawable, gc, + x + item->details->embedded_text_rect.x, + y + item->details->embedded_text_rect.y, + layout); + + g_object_unref (gc); + g_object_unref (layout); +} + +/* Draw the icon item for non-anti-aliased mode. */ +static void +caja_icon_canvas_item_draw (EelCanvasItem *item, GdkDrawable *drawable, + GdkEventExpose *expose) +{ + CajaIconCanvasItem *icon_item; + CajaIconCanvasItemDetails *details; + EelIRect icon_rect, emblem_rect; + EmblemLayout emblem_layout; + GdkPixbuf *emblem_pixbuf, *temp_pixbuf; + GdkRectangle draw_rect, pixbuf_rect; + gboolean is_rtl; + + icon_item = CAJA_ICON_CANVAS_ITEM (item); + details = icon_item->details; + + /* Draw the pixbuf. */ + if (details->pixbuf == NULL) + { + return; + } + + icon_rect = icon_item->details->canvas_rect; + + /* if the pre-lit or selection flag is set, make a pre-lit or darkened pixbuf and draw that instead */ + /* and colorize normal pixbuf if rc wants that */ + temp_pixbuf = map_pixbuf (icon_item); + pixbuf_rect.x = icon_rect.x0; + pixbuf_rect.y = icon_rect.y0; + pixbuf_rect.width = gdk_pixbuf_get_width (temp_pixbuf); + pixbuf_rect.height = gdk_pixbuf_get_height (temp_pixbuf); + if (gdk_rectangle_intersect (&(expose->area), &pixbuf_rect, &draw_rect)) + { + gdk_draw_pixbuf (drawable, + NULL, + temp_pixbuf, + draw_rect.x - pixbuf_rect.x, + draw_rect.y - pixbuf_rect.y, + draw_rect.x, + draw_rect.y, + draw_rect.width, + draw_rect.height, + GDK_RGB_DITHER_NORMAL, + 0,0); + } + g_object_unref (temp_pixbuf); + + draw_embedded_text (icon_item, drawable, icon_rect.x0, icon_rect.y0); + + is_rtl = caja_icon_container_is_layout_rtl (CAJA_ICON_CONTAINER (item->canvas)); + + /* Draw the emblem pixbufs. */ + emblem_layout_reset (&emblem_layout, icon_item, icon_rect, is_rtl); + while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) + { + draw_pixbuf (emblem_pixbuf, drawable, emblem_rect.x0, emblem_rect.y0); + } + + /* Draw stretching handles (if necessary). */ + draw_stretch_handles (icon_item, drawable, &icon_rect); + + /* Draw the label text. */ + draw_label_text (icon_item, drawable, FALSE, icon_rect); +} + +#define ZERO_WIDTH_SPACE "\xE2\x80\x8B" + +#define ZERO_OR_THREE_DIGITS(p) \ + (!g_ascii_isdigit (*p) || \ + (g_ascii_isdigit (*(p+1)) && \ + g_ascii_isdigit (*(p+2)))) + + +static PangoLayout * +create_label_layout (CajaIconCanvasItem *item, + const char *text) +{ + PangoLayout *layout; + PangoContext *context; + PangoFontDescription *desc; + CajaIconContainer *container; + EelCanvasItem *canvas_item; + GString *str; + char *zeroified_text; + const char *p; + + canvas_item = EEL_CANVAS_ITEM (item); + + container = CAJA_ICON_CONTAINER (canvas_item->canvas); + context = gtk_widget_get_pango_context (GTK_WIDGET (canvas_item->canvas)); + layout = pango_layout_new (context); + + zeroified_text = NULL; + + if (text != NULL) + { + str = g_string_new (NULL); + + for (p = text; *p != '\0'; p++) + { + str = g_string_append_c (str, *p); + + if (*p == '_' || *p == '-' || (*p == '.' && ZERO_OR_THREE_DIGITS (p+1))) + { + /* Ensure that we allow to break after '_' or '.' characters, + * if they are not likely to be part of a version information, to + * not break wrapping of foobar-0.0.1. + * Wrap before IPs and long numbers, though. */ + str = g_string_append (str, ZERO_WIDTH_SPACE); + } + } + + zeroified_text = g_string_free (str, FALSE); + } + + pango_layout_set_text (layout, zeroified_text, -1); + pango_layout_set_auto_dir (layout, FALSE); + + if (container->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE) + { + if (!caja_icon_container_is_layout_rtl (container)) + { + pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT); + } + else + { + pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT); + } + } + else + { + pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER); + } + + pango_layout_set_spacing (layout, LABEL_LINE_SPACING); + pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR); + + /* Create a font description */ + if (container->details->font) + { + desc = pango_font_description_from_string (container->details->font); + } + else + { + desc = pango_font_description_copy (pango_context_get_font_description (context)); + pango_font_description_set_size (desc, + pango_font_description_get_size (desc) + + container->details->font_size_table [container->details->zoom_level]); + } + pango_layout_set_font_description (layout, desc); + pango_font_description_free (desc); + g_free (zeroified_text); + + return layout; +} + +static PangoLayout * +get_label_layout (PangoLayout **layout_cache, + CajaIconCanvasItem *item, + const char *text) +{ + PangoLayout *layout; + + if (*layout_cache != NULL) + { + return g_object_ref (*layout_cache); + } + + layout = create_label_layout (item, text); + + if (item->details->is_visible) + { + *layout_cache = g_object_ref (layout); + } + + return layout; +} + +static void +draw_label_layout (CajaIconCanvasItem *item, + GdkDrawable *drawable, + PangoLayout *layout, + gboolean highlight, + GdkColor *label_color, + int x, + int y, + GdkGC *gc) +{ + if (drawable == NULL) + { + return; + } + + if (item->details->is_renaming) + { + return; + } + + if (!highlight && (CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas)->details->use_drop_shadows)) + { + /* draw a drop shadow */ + eel_gdk_draw_layout_with_drop_shadow (drawable, gc, + label_color, + >k_widget_get_style (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas))->black, + x, y, + layout); + } + else + { + gdk_draw_layout (drawable, gc, + x, y, + layout); + } +} + +/* handle events */ + +static int +caja_icon_canvas_item_event (EelCanvasItem *item, GdkEvent *event) +{ + CajaIconCanvasItem *icon_item; + GdkCursor *cursor; + + icon_item = CAJA_ICON_CANVAS_ITEM (item); + + switch (event->type) + { + case GDK_ENTER_NOTIFY: + if (!icon_item->details->is_prelit) + { + icon_item->details->is_prelit = TRUE; + caja_icon_canvas_item_invalidate_label_size (icon_item); + eel_canvas_item_request_update (item); + eel_canvas_item_send_behind (item, + CAJA_ICON_CONTAINER (item->canvas)->details->rubberband_info.selection_rectangle); + + /* show a hand cursor */ + if (in_single_click_mode ()) + { + cursor = gdk_cursor_new_for_display (gdk_display_get_default(), + GDK_HAND2); + gdk_window_set_cursor (((GdkEventAny *)event)->window, cursor); + gdk_cursor_unref (cursor); + } + + /* FIXME bugzilla.gnome.org 42473: + * We should emit our own signal here, + * not one from the container; it could hook + * up to that signal and emit one of its + * own. Doing it this way hard-codes what + * "user_data" is. Also, the two signals + * should be separate. The "unpreview" signal + * does not have a return value. + */ + icon_item->details->is_active = caja_icon_container_emit_preview_signal + (CAJA_ICON_CONTAINER (item->canvas), + CAJA_ICON_CANVAS_ITEM (item)->user_data, + TRUE); + } + return TRUE; + + case GDK_LEAVE_NOTIFY: + if (icon_item->details->is_prelit + || icon_item->details->is_highlighted_for_drop) + { + /* When leaving, turn of the prelight state and the + * higlighted for drop. The latter gets turned on + * by the drag&drop motion callback. + */ + /* FIXME bugzilla.gnome.org 42473: + * We should emit our own signal here, + * not one from the containe; it could hook up + * to that signal and emit one of its + * ownr. Doing it this way hard-codes what + * "user_data" is. Also, the two signals + * should be separate. The "unpreview" signal + * does not have a return value. + */ + caja_icon_container_emit_preview_signal + (CAJA_ICON_CONTAINER (item->canvas), + CAJA_ICON_CANVAS_ITEM (item)->user_data, + FALSE); + icon_item->details->is_prelit = FALSE; + icon_item->details->is_active = 0; + icon_item->details->is_highlighted_for_drop = FALSE; + caja_icon_canvas_item_invalidate_label_size (icon_item); + eel_canvas_item_request_update (item); + + /* show default cursor */ + gdk_window_set_cursor (((GdkEventAny *)event)->window, NULL); + } + return TRUE; + + default: + /* Don't eat up other events; icon container might use them. */ + return FALSE; + } +} + +static gboolean +hit_test_pixbuf (GdkPixbuf *pixbuf, EelIRect pixbuf_location, EelIRect probe_rect) +{ + EelIRect relative_rect, pixbuf_rect; + int x, y; + guint8 *pixel; + + /* You can get here without a pixbuf in some strange cases. */ + if (pixbuf == NULL) + { + return FALSE; + } + + /* Check to see if it's within the rectangle at all. */ + relative_rect.x0 = probe_rect.x0 - pixbuf_location.x0; + relative_rect.y0 = probe_rect.y0 - pixbuf_location.y0; + relative_rect.x1 = probe_rect.x1 - pixbuf_location.x0; + relative_rect.y1 = probe_rect.y1 - pixbuf_location.y0; + pixbuf_rect.x0 = 0; + pixbuf_rect.y0 = 0; + pixbuf_rect.x1 = gdk_pixbuf_get_width (pixbuf); + pixbuf_rect.y1 = gdk_pixbuf_get_height (pixbuf); + eel_irect_intersect (&relative_rect, &relative_rect, &pixbuf_rect); + if (eel_irect_is_empty (&relative_rect)) + { + return FALSE; + } + + /* If there's no alpha channel, it's opaque and we have a hit. */ + if (!gdk_pixbuf_get_has_alpha (pixbuf)) + { + return TRUE; + } + g_assert (gdk_pixbuf_get_n_channels (pixbuf) == 4); + + /* Check the alpha channel of the pixel to see if we have a hit. */ + for (x = relative_rect.x0; x < relative_rect.x1; x++) + { + for (y = relative_rect.y0; y < relative_rect.y1; y++) + { + pixel = gdk_pixbuf_get_pixels (pixbuf) + + y * gdk_pixbuf_get_rowstride (pixbuf) + + x * 4; + if (pixel[3] > 1) + { + return TRUE; + } + } + } + return FALSE; +} + +static gboolean +hit_test (CajaIconCanvasItem *icon_item, EelIRect canvas_rect) +{ + CajaIconCanvasItemDetails *details; + EelIRect emblem_rect; + EmblemLayout emblem_layout; + GdkPixbuf *emblem_pixbuf; + gboolean is_rtl; + + details = icon_item->details; + + /* Quick check to see if the rect hits the icon, text or emblems at all. */ + if (!eel_irect_hits_irect (icon_item->details->canvas_rect, canvas_rect) + && (!eel_irect_hits_irect (details->text_rect, canvas_rect)) + && (!eel_irect_hits_irect (details->emblem_rect, canvas_rect))) + { + return FALSE; + } + + /* Check for hits in the stretch handles. */ + if (hit_test_stretch_handle (icon_item, canvas_rect, NULL)) + { + return TRUE; + } + + /* Check for hit in the icon. */ + if (eel_irect_hits_irect (icon_item->details->canvas_rect, canvas_rect)) + { + return TRUE; + } + + /* Check for hit in the text. */ + if (eel_irect_hits_irect (details->text_rect, canvas_rect) + && !icon_item->details->is_renaming) + { + return TRUE; + } + + is_rtl = caja_icon_container_is_layout_rtl (CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (icon_item)->canvas)); + + /* Check for hit in the emblem pixbufs. */ + emblem_layout_reset (&emblem_layout, icon_item, icon_item->details->canvas_rect, is_rtl); + while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) + { + if (hit_test_pixbuf (emblem_pixbuf, emblem_rect, canvas_rect)) + { + return TRUE; + } + } + + return FALSE; +} + +/* Point handler for the icon canvas item. */ +static double +caja_icon_canvas_item_point (EelCanvasItem *item, double x, double y, int cx, int cy, + EelCanvasItem **actual_item) +{ + EelIRect canvas_rect; + + *actual_item = item; + canvas_rect.x0 = cx; + canvas_rect.y0 = cy; + canvas_rect.x1 = cx + 1; + canvas_rect.y1 = cy + 1; + if (hit_test (CAJA_ICON_CANVAS_ITEM (item), canvas_rect)) + { + return 0.0; + } + else + { + /* This value means not hit. + * It's kind of arbitrary. Can we do better? + */ + return item->canvas->pixels_per_unit * 2 + 10; + } +} + +static void +caja_icon_canvas_item_translate (EelCanvasItem *item, double dx, double dy) +{ + CajaIconCanvasItem *icon_item; + CajaIconCanvasItemDetails *details; + + icon_item = CAJA_ICON_CANVAS_ITEM (item); + details = icon_item->details; + + details->x += dx; + details->y += dy; +} + +void +caja_icon_canvas_item_get_bounds_for_layout (CajaIconCanvasItem *icon_item, + double *x1, double *y1, double *x2, double *y2) +{ + CajaIconCanvasItemDetails *details; + EelIRect *total_rect; + + details = icon_item->details; + + caja_icon_canvas_item_ensure_bounds_up_to_date (icon_item); + g_assert (details->bounds_cached); + + total_rect = &details->bounds_cache_for_layout; + + /* Return the result. */ + if (x1 != NULL) + { + *x1 = (int)details->x + total_rect->x0; + } + if (y1 != NULL) + { + *y1 = (int)details->y + total_rect->y0; + } + if (x2 != NULL) + { + *x2 = (int)details->x + total_rect->x1 + 1; + } + if (y2 != NULL) + { + *y2 = (int)details->y + total_rect->y1 + 1; + } +} + +void +caja_icon_canvas_item_get_bounds_for_entire_item (CajaIconCanvasItem *icon_item, + double *x1, double *y1, double *x2, double *y2) +{ + CajaIconCanvasItemDetails *details; + EelIRect *total_rect; + + details = icon_item->details; + + caja_icon_canvas_item_ensure_bounds_up_to_date (icon_item); + g_assert (details->bounds_cached); + + total_rect = &details->bounds_cache_for_entire_item; + + /* Return the result. */ + if (x1 != NULL) + { + *x1 = (int)details->x + total_rect->x0; + } + if (y1 != NULL) + { + *y1 = (int)details->y + total_rect->y0; + } + if (x2 != NULL) + { + *x2 = (int)details->x + total_rect->x1 + 1; + } + if (y2 != NULL) + { + *y2 = (int)details->y + total_rect->y1 + 1; + } +} + +/* Bounds handler for the icon canvas item. */ +static void +caja_icon_canvas_item_bounds (EelCanvasItem *item, + double *x1, double *y1, double *x2, double *y2) +{ + CajaIconCanvasItem *icon_item; + CajaIconCanvasItemDetails *details; + EelIRect *total_rect; + + icon_item = CAJA_ICON_CANVAS_ITEM (item); + details = icon_item->details; + + g_assert (x1 != NULL); + g_assert (y1 != NULL); + g_assert (x2 != NULL); + g_assert (y2 != NULL); + + caja_icon_canvas_item_ensure_bounds_up_to_date (icon_item); + g_assert (details->bounds_cached); + + total_rect = &details->bounds_cache; + + /* Return the result. */ + *x1 = (int)details->x + total_rect->x0; + *y1 = (int)details->y + total_rect->y0; + *x2 = (int)details->x + total_rect->x1 + 1; + *y2 = (int)details->y + total_rect->y1 + 1; +} + +static void +caja_icon_canvas_item_ensure_bounds_up_to_date (CajaIconCanvasItem *icon_item) +{ + CajaIconCanvasItemDetails *details; + EelIRect icon_rect, emblem_rect, icon_rect_raw; + EelIRect text_rect, text_rect_for_layout, text_rect_for_entire_text; + EelIRect total_rect, total_rect_for_layout, total_rect_for_entire_text; + EelCanvasItem *item; + double pixels_per_unit; + EmblemLayout emblem_layout; + GdkPixbuf *emblem_pixbuf; + gboolean is_rtl; + + details = icon_item->details; + item = EEL_CANVAS_ITEM (icon_item); + + if (!details->bounds_cached) + { + measure_label_text (icon_item); + + pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit; + + /* Compute raw and scaled icon rectangle. */ + icon_rect.x0 = 0; + icon_rect.y0 = 0; + icon_rect_raw.x0 = 0; + icon_rect_raw.y0 = 0; + if (details->pixbuf == NULL) + { + icon_rect.x1 = icon_rect.x0; + icon_rect.y1 = icon_rect.y0; + icon_rect_raw.x1 = icon_rect_raw.x0; + icon_rect_raw.y1 = icon_rect_raw.y0; + } + else + { + icon_rect_raw.x1 = icon_rect_raw.x0 + gdk_pixbuf_get_width (details->pixbuf); + icon_rect_raw.y1 = icon_rect_raw.y0 + gdk_pixbuf_get_height (details->pixbuf); + icon_rect.x1 = icon_rect_raw.x1 / pixels_per_unit; + icon_rect.y1 = icon_rect_raw.y1 / pixels_per_unit; + } + + /* Compute text rectangle. */ + text_rect = compute_text_rectangle (icon_item, icon_rect, FALSE, BOUNDS_USAGE_FOR_DISPLAY); + text_rect_for_layout = compute_text_rectangle (icon_item, icon_rect, FALSE, BOUNDS_USAGE_FOR_LAYOUT); + text_rect_for_entire_text = compute_text_rectangle (icon_item, icon_rect, FALSE, BOUNDS_USAGE_FOR_ENTIRE_ITEM); + + is_rtl = caja_icon_container_is_layout_rtl (CAJA_ICON_CONTAINER (item->canvas)); + + /* Compute total rectangle, adding in emblem rectangles. */ + eel_irect_union (&total_rect, &icon_rect, &text_rect); + eel_irect_union (&total_rect_for_layout, &icon_rect, &text_rect_for_layout); + eel_irect_union (&total_rect_for_entire_text, &icon_rect, &text_rect_for_entire_text); + emblem_layout_reset (&emblem_layout, icon_item, icon_rect_raw, is_rtl); + while (emblem_layout_next (&emblem_layout, &emblem_pixbuf, &emblem_rect, is_rtl)) + { + emblem_rect.x0 = floor (emblem_rect.x0 / pixels_per_unit); + emblem_rect.y0 = floor (emblem_rect.y0 / pixels_per_unit); + emblem_rect.x1 = ceil (emblem_rect.x1 / pixels_per_unit); + emblem_rect.y1 = ceil (emblem_rect.y1 / pixels_per_unit); + + eel_irect_union (&total_rect, &total_rect, &emblem_rect); + eel_irect_union (&total_rect_for_layout, &total_rect_for_layout, &emblem_rect); + eel_irect_union (&total_rect_for_entire_text, &total_rect_for_entire_text, &emblem_rect); + } + + details->bounds_cache = total_rect; + details->bounds_cache_for_layout = total_rect_for_layout; + details->bounds_cache_for_entire_item = total_rect_for_entire_text; + details->bounds_cached = TRUE; + } +} + +/* Get the rectangle of the icon only, in world coordinates. */ +EelDRect +caja_icon_canvas_item_get_icon_rectangle (const CajaIconCanvasItem *item) +{ + EelDRect rectangle; + double pixels_per_unit; + GdkPixbuf *pixbuf; + + g_return_val_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item), eel_drect_empty); + + rectangle.x0 = item->details->x; + rectangle.y0 = item->details->y; + + pixbuf = item->details->pixbuf; + + pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit; + rectangle.x1 = rectangle.x0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_width (pixbuf)) / pixels_per_unit; + rectangle.y1 = rectangle.y0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_height (pixbuf)) / pixels_per_unit; + + eel_canvas_item_i2w (EEL_CANVAS_ITEM (item), + &rectangle.x0, + &rectangle.y0); + eel_canvas_item_i2w (EEL_CANVAS_ITEM (item), + &rectangle.x1, + &rectangle.y1); + + return rectangle; +} + +EelDRect +caja_icon_canvas_item_get_text_rectangle (CajaIconCanvasItem *item, + gboolean for_layout) +{ + /* FIXME */ + EelIRect icon_rectangle; + EelIRect text_rectangle; + EelDRect ret; + double pixels_per_unit; + GdkPixbuf *pixbuf; + + g_return_val_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item), eel_drect_empty); + + icon_rectangle.x0 = item->details->x; + icon_rectangle.y0 = item->details->y; + + pixbuf = item->details->pixbuf; + + pixels_per_unit = EEL_CANVAS_ITEM (item)->canvas->pixels_per_unit; + icon_rectangle.x1 = icon_rectangle.x0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_width (pixbuf)) / pixels_per_unit; + icon_rectangle.y1 = icon_rectangle.y0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_height (pixbuf)) / pixels_per_unit; + + measure_label_text (item); + + text_rectangle = compute_text_rectangle (item, icon_rectangle, FALSE, + for_layout ? BOUNDS_USAGE_FOR_LAYOUT : BOUNDS_USAGE_FOR_DISPLAY); + + ret.x0 = text_rectangle.x0; + ret.y0 = text_rectangle.y0; + ret.x1 = text_rectangle.x1; + ret.y1 = text_rectangle.y1; + + eel_canvas_item_i2w (EEL_CANVAS_ITEM (item), + &ret.x0, + &ret.y0); + eel_canvas_item_i2w (EEL_CANVAS_ITEM (item), + &ret.x1, + &ret.y1); + + return ret; +} + + +/* Get the rectangle of the icon only, in canvas coordinates. */ +static void +get_icon_canvas_rectangle (CajaIconCanvasItem *item, + EelIRect *rect) +{ + GdkPixbuf *pixbuf; + + g_assert (CAJA_IS_ICON_CANVAS_ITEM (item)); + g_assert (rect != NULL); + + eel_canvas_w2c (EEL_CANVAS_ITEM (item)->canvas, + item->details->x, + item->details->y, + &rect->x0, + &rect->y0); + + pixbuf = item->details->pixbuf; + + rect->x1 = rect->x0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_width (pixbuf)); + rect->y1 = rect->y0 + (pixbuf == NULL ? 0 : gdk_pixbuf_get_height (pixbuf)); +} + +void +caja_icon_canvas_item_set_show_stretch_handles (CajaIconCanvasItem *item, + gboolean show_stretch_handles) +{ + g_return_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item)); + g_return_if_fail (show_stretch_handles == FALSE || show_stretch_handles == TRUE); + + if (!item->details->show_stretch_handles == !show_stretch_handles) + { + return; + } + + item->details->show_stretch_handles = show_stretch_handles; + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); +} + +/* Check if one of the stretch handles was hit. */ +static gboolean +hit_test_stretch_handle (CajaIconCanvasItem *item, + EelIRect probe_canvas_rect, + GtkCornerType *corner) +{ + EelIRect icon_rect; + GdkPixbuf *knob_pixbuf; + int knob_width, knob_height; + int hit_corner; + + g_assert (CAJA_IS_ICON_CANVAS_ITEM (item)); + + /* Make sure there are handles to hit. */ + if (!item->details->show_stretch_handles) + { + return FALSE; + } + + /* Quick check to see if the rect hits the icon at all. */ + icon_rect = item->details->canvas_rect; + if (!eel_irect_hits_irect (probe_canvas_rect, icon_rect)) + { + return FALSE; + } + + knob_pixbuf = get_knob_pixbuf (); + knob_width = gdk_pixbuf_get_width (knob_pixbuf); + knob_height = gdk_pixbuf_get_height (knob_pixbuf); + g_object_unref (knob_pixbuf); + + /* Check for hits in the stretch handles. */ + hit_corner = -1; + if (probe_canvas_rect.x0 < icon_rect.x0 + knob_width) + { + if (probe_canvas_rect.y0 < icon_rect.y0 + knob_height) + hit_corner = GTK_CORNER_TOP_LEFT; + else if (probe_canvas_rect.y1 >= icon_rect.y1 - knob_height) + hit_corner = GTK_CORNER_BOTTOM_LEFT; + } + else if (probe_canvas_rect.x1 >= icon_rect.x1 - knob_width) + { + if (probe_canvas_rect.y0 < icon_rect.y0 + knob_height) + hit_corner = GTK_CORNER_TOP_RIGHT; + else if (probe_canvas_rect.y1 >= icon_rect.y1 - knob_height) + hit_corner = GTK_CORNER_BOTTOM_RIGHT; + } + if (corner) + *corner = hit_corner; + + return hit_corner != -1; +} + +gboolean +caja_icon_canvas_item_hit_test_stretch_handles (CajaIconCanvasItem *item, + EelDPoint world_point, + GtkCornerType *corner) +{ + EelIRect canvas_rect; + + g_return_val_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item), FALSE); + + eel_canvas_w2c (EEL_CANVAS_ITEM (item)->canvas, + world_point.x, + world_point.y, + &canvas_rect.x0, + &canvas_rect.y0); + canvas_rect.x1 = canvas_rect.x0 + 1; + canvas_rect.y1 = canvas_rect.y0 + 1; + return hit_test_stretch_handle (item, canvas_rect, corner); +} + +/* caja_icon_canvas_item_hit_test_rectangle + * + * Check and see if there is an intersection between the item and the + * canvas rect. + */ +gboolean +caja_icon_canvas_item_hit_test_rectangle (CajaIconCanvasItem *item, EelIRect canvas_rect) +{ + g_return_val_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item), FALSE); + + return hit_test (item, canvas_rect); +} + +const char * +caja_icon_canvas_item_get_editable_text (CajaIconCanvasItem *icon_item) +{ + g_return_val_if_fail (CAJA_IS_ICON_CANVAS_ITEM (icon_item), NULL); + + return icon_item->details->editable_text; +} + +void +caja_icon_canvas_item_set_renaming (CajaIconCanvasItem *item, gboolean state) +{ + g_return_if_fail (CAJA_IS_ICON_CANVAS_ITEM (item)); + g_return_if_fail (state == FALSE || state == TRUE); + + if (!item->details->is_renaming == !state) + { + return; + } + + item->details->is_renaming = state; + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); +} + +double +caja_icon_canvas_item_get_max_text_width (CajaIconCanvasItem *item) +{ + EelCanvasItem *canvas_item; + CajaIconContainer *container; + + canvas_item = EEL_CANVAS_ITEM (item); + container = CAJA_ICON_CONTAINER (canvas_item->canvas); + + if (caja_icon_container_is_tighter_layout (container)) + { + return MAX_TEXT_WIDTH_TIGHTER * canvas_item->canvas->pixels_per_unit; + } + else + { + + if (container->details->label_position == CAJA_ICON_LABEL_POSITION_BESIDE) + { + if (container->details->layout_mode == CAJA_ICON_LAYOUT_T_B_L_R || + container->details->layout_mode == CAJA_ICON_LAYOUT_T_B_R_L) + { + if (container->details->all_columns_same_width) + { + return MAX_TEXT_WIDTH_BESIDE_TOP_TO_BOTTOM * canvas_item->canvas->pixels_per_unit; + } + else + { + return -1; + } + } + else + { + return MAX_TEXT_WIDTH_BESIDE * canvas_item->canvas->pixels_per_unit; + } + } + else + { + return MAX_TEXT_WIDTH_STANDARD * canvas_item->canvas->pixels_per_unit; + } + + + } + +} + +/* CajaIconCanvasItemAccessible */ + +static CajaIconCanvasItemAccessiblePrivate * +accessible_get_priv (AtkObject *accessible) +{ + CajaIconCanvasItemAccessiblePrivate *priv; + + priv = g_object_get_qdata (G_OBJECT (accessible), + accessible_private_data_quark); + + return priv; +} + +/* AtkAction interface */ + +static gboolean +caja_icon_canvas_item_accessible_idle_do_action (gpointer data) +{ + CajaIconCanvasItem *item; + CajaIconCanvasItemAccessibleActionContext *ctx; + CajaIcon *icon; + CajaIconContainer *container; + GList* selection; + GList file_list; + GdkEventButton button_event = { 0 }; + gint action_number; + + container = CAJA_ICON_CONTAINER (data); + container->details->a11y_item_action_idle_handler = 0; + while (!g_queue_is_empty (container->details->a11y_item_action_queue)) + { + ctx = g_queue_pop_head (container->details->a11y_item_action_queue); + action_number = ctx->action_number; + item = ctx->item; + g_free (ctx); + icon = item->user_data; + + switch (action_number) + { + case ACTION_OPEN: + file_list.data = icon->data; + file_list.next = NULL; + file_list.prev = NULL; + g_signal_emit_by_name (container, "activate", &file_list); + break; + case ACTION_MENU: + selection = caja_icon_container_get_selection (container); + if (selection == NULL || + g_list_length (selection) != 1 || + selection->data != icon->data) + { + g_list_free (selection); + return FALSE; + } + g_list_free (selection); + g_signal_emit_by_name (container, "context_click_selection", &button_event); + break; + default : + g_assert_not_reached (); + break; + } + } + return FALSE; +} + +static gboolean +caja_icon_canvas_item_accessible_do_action (AtkAction *accessible, int i) +{ + CajaIconCanvasItem *item; + CajaIconCanvasItemAccessibleActionContext *ctx; + CajaIcon *icon; + CajaIconContainer *container; + + g_assert (i < LAST_ACTION); + + item = eel_accessibility_get_gobject (ATK_OBJECT (accessible)); + if (!item) + { + return FALSE; + } + icon = item->user_data; + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + switch (i) + { + case ACTION_OPEN: + case ACTION_MENU: + if (container->details->a11y_item_action_queue == NULL) + { + container->details->a11y_item_action_queue = g_queue_new (); + } + ctx = g_new (CajaIconCanvasItemAccessibleActionContext, 1); + ctx->action_number = i; + ctx->item = item; + g_queue_push_head (container->details->a11y_item_action_queue, ctx); + if (container->details->a11y_item_action_idle_handler == 0) + { + container->details->a11y_item_action_idle_handler = g_idle_add (caja_icon_canvas_item_accessible_idle_do_action, container); + } + break; + default : + g_warning ("Invalid action passed to CajaIconCanvasItemAccessible::do_action"); + return FALSE; + } + + return TRUE; +} + +static int +caja_icon_canvas_item_accessible_get_n_actions (AtkAction *accessible) +{ + return LAST_ACTION; +} + +static const char * +caja_icon_canvas_item_accessible_action_get_description (AtkAction *accessible, + int i) +{ + CajaIconCanvasItemAccessiblePrivate *priv; + + g_assert (i < LAST_ACTION); + + priv = accessible_get_priv (ATK_OBJECT (accessible)); + if (priv->action_descriptions[i]) + { + return priv->action_descriptions[i]; + } + else + { + return caja_icon_canvas_item_accessible_action_descriptions[i]; + } +} + +static const char * +caja_icon_canvas_item_accessible_action_get_name (AtkAction *accessible, int i) +{ + g_assert (i < LAST_ACTION); + + return caja_icon_canvas_item_accessible_action_names[i]; +} + +static const char * +caja_icon_canvas_item_accessible_action_get_keybinding (AtkAction *accessible, + int i) +{ + g_assert (i < LAST_ACTION); + + return NULL; +} + +static gboolean +caja_icon_canvas_item_accessible_action_set_description (AtkAction *accessible, + int i, + const char *description) +{ + CajaIconCanvasItemAccessiblePrivate *priv; + + g_assert (i < LAST_ACTION); + + priv = accessible_get_priv (ATK_OBJECT (accessible)); + + if (priv->action_descriptions[i]) + { + g_free (priv->action_descriptions[i]); + } + priv->action_descriptions[i] = g_strdup (description); + + return TRUE; +} + +static void +caja_icon_canvas_item_accessible_action_interface_init (AtkActionIface *iface) +{ + iface->do_action = caja_icon_canvas_item_accessible_do_action; + iface->get_n_actions = caja_icon_canvas_item_accessible_get_n_actions; + iface->get_description = caja_icon_canvas_item_accessible_action_get_description; + iface->get_keybinding = caja_icon_canvas_item_accessible_action_get_keybinding; + iface->get_name = caja_icon_canvas_item_accessible_action_get_name; + iface->set_description = caja_icon_canvas_item_accessible_action_set_description; +} + +static const gchar* caja_icon_canvas_item_accessible_get_name(AtkObject* accessible) +{ + CajaIconCanvasItem* item; + + if (accessible->name) + { + return accessible->name; + } + + item = eel_accessibility_get_gobject(accessible); + + if (!item) + { + return NULL; + } + + return item->details->editable_text; +} + +static const gchar* caja_icon_canvas_item_accessible_get_description(AtkObject* accessible) +{ + CajaIconCanvasItem* item; + + item = eel_accessibility_get_gobject(accessible); + + if (!item) + { + return NULL; + } + + return item->details->additional_text; +} + +static AtkObject * +caja_icon_canvas_item_accessible_get_parent (AtkObject *accessible) +{ + CajaIconCanvasItem *item; + + item = eel_accessibility_get_gobject (accessible); + if (!item) + { + return NULL; + } + + return gtk_widget_get_accessible (GTK_WIDGET (EEL_CANVAS_ITEM (item)->canvas)); +} + +static int +caja_icon_canvas_item_accessible_get_index_in_parent (AtkObject *accessible) +{ + CajaIconCanvasItem *item; + CajaIconContainer *container; + GList *l; + CajaIcon *icon; + int i; + + item = eel_accessibility_get_gobject (accessible); + if (!item) + { + return -1; + } + + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + + l = container->details->icons; + i = 0; + while (l) + { + icon = l->data; + + if (icon->item == item) + { + return i; + } + + i++; + l = l->next; + } + + return -1; +} + +static AtkStateSet* +caja_icon_canvas_item_accessible_ref_state_set (AtkObject *accessible) +{ + AtkStateSet *state_set; + CajaIconCanvasItem *item; + CajaIconContainer *container; + CajaIcon *icon; + GList *l; + gboolean one_item_selected; + + state_set = ATK_OBJECT_CLASS (accessible_parent_class)->ref_state_set (accessible); + + item = eel_accessibility_get_gobject (accessible); + if (!item) + { + atk_state_set_add_state (state_set, ATK_STATE_DEFUNCT); + return state_set; + } + container = CAJA_ICON_CONTAINER (EEL_CANVAS_ITEM (item)->canvas); + if (item->details->is_highlighted_as_keyboard_focus) + { + atk_state_set_add_state (state_set, ATK_STATE_FOCUSED); + } + else if (!container->details->keyboard_focus) + { + + one_item_selected = FALSE; + l = container->details->icons; + while (l) + { + icon = l->data; + + if (icon->item == item) + { + if (icon->is_selected) + { + one_item_selected = TRUE; + } + else + { + break; + } + } + else if (icon->is_selected) + { + one_item_selected = FALSE; + break; + } + + l = l->next; + } + + if (one_item_selected) + { + atk_state_set_add_state (state_set, ATK_STATE_FOCUSED); + } + } + + return state_set; +} + +static void +caja_icon_canvas_item_accessible_initialize (AtkObject *accessible, + gpointer data) +{ + CajaIconCanvasItemAccessiblePrivate *priv; + + if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize) + { + ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data); + } + + priv = g_new0 (CajaIconCanvasItemAccessiblePrivate, 1); + g_object_set_qdata (G_OBJECT (accessible), + accessible_private_data_quark, + priv); +} + +static void +caja_icon_canvas_item_accessible_finalize (GObject *object) +{ + CajaIconCanvasItemAccessiblePrivate *priv; + int i; + + priv = accessible_get_priv (ATK_OBJECT (object)); + + for (i = 0; i < LAST_ACTION; i++) + { + g_free (priv->action_descriptions[i]); + } + g_free (priv->image_description); + g_free (priv->description); + + g_free (priv); + + G_OBJECT_CLASS (accessible_parent_class)->finalize (object); +} + +static void +caja_icon_canvas_item_accessible_class_init (AtkObjectClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + accessible_parent_class = g_type_class_peek_parent (klass); + + gobject_class->finalize = caja_icon_canvas_item_accessible_finalize; + + klass->get_name = caja_icon_canvas_item_accessible_get_name; + klass->get_description = caja_icon_canvas_item_accessible_get_description; + klass->get_parent = caja_icon_canvas_item_accessible_get_parent; + klass->get_index_in_parent = caja_icon_canvas_item_accessible_get_index_in_parent; + klass->ref_state_set = caja_icon_canvas_item_accessible_ref_state_set; + klass->initialize = caja_icon_canvas_item_accessible_initialize; + accessible_private_data_quark = g_quark_from_static_string ("icon-canvas-item-accessible-private-data"); +} + + +static const gchar* caja_icon_canvas_item_accessible_get_image_description(AtkImage* image) +{ + CajaIconCanvasItemAccessiblePrivate* priv; + CajaIconCanvasItem* item; + CajaIcon* icon; + CajaIconContainer* container; + char* description; + + priv = accessible_get_priv(ATK_OBJECT(image)); + + if (priv->image_description) + { + return priv->image_description; + } + else + { + item = eel_accessibility_get_gobject(ATK_OBJECT (image)); + + if (item == NULL) + { + return NULL; + } + + icon = item->user_data; + container = CAJA_ICON_CONTAINER(EEL_CANVAS_ITEM(item)->canvas); + description = caja_icon_container_get_icon_description(container, icon->data); + g_free(priv->description); + priv->description = description; + + return priv->description; + } +} + +static void +caja_icon_canvas_item_accessible_get_image_size +(AtkImage *image, + gint *width, + gint *height) +{ + CajaIconCanvasItem *item; + + item = eel_accessibility_get_gobject (ATK_OBJECT (image)); + + if (!item || !item->details->pixbuf) + { + *width = *height = 0; + } + else + { + *width = gdk_pixbuf_get_width (item->details->pixbuf); + *height = gdk_pixbuf_get_height (item->details->pixbuf); + } +} + +static void +caja_icon_canvas_item_accessible_get_image_position +(AtkImage *image, + gint *x, + gint *y, + AtkCoordType coord_type) +{ + CajaIconCanvasItem *item; + gint x_offset, y_offset, itmp; + + item = eel_accessibility_get_gobject (ATK_OBJECT (image)); + if (!item) + { + return; + } + if (!item->details->canvas_rect.x0 && !item->details->canvas_rect.x1) + { + return; + } + else + { + x_offset = 0; + y_offset = 0; + if (item->details->text_width) + { + itmp = item->details->canvas_rect.x0 - + item->details->text_rect.x0; + if (itmp > x_offset) + { + x_offset = itmp; + } + itmp = item->details->canvas_rect.y0 - + item->details->text_rect.y0; + if (itmp > y_offset) + { + y_offset = itmp; + } + } + if (item->details->emblem_pixbufs) + { + itmp = item->details->canvas_rect.x0 - + item->details->emblem_rect.x0; + if (itmp > x_offset) + { + x_offset = itmp; + } + itmp = item->details->canvas_rect.y0 - + item->details->emblem_rect.y0; + if (itmp > y_offset) + { + y_offset = itmp; + } + } + } + atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type); + *x += x_offset; + *y += y_offset; +} + +static gboolean +caja_icon_canvas_item_accessible_set_image_description +(AtkImage *image, + const gchar *description) +{ + CajaIconCanvasItemAccessiblePrivate *priv; + + priv = accessible_get_priv (ATK_OBJECT (image)); + + g_free (priv->image_description); + priv->image_description = g_strdup (description); + + return TRUE; +} + +static void +caja_icon_canvas_item_accessible_image_interface_init (AtkImageIface *iface) +{ + iface->get_image_description = caja_icon_canvas_item_accessible_get_image_description; + iface->set_image_description = caja_icon_canvas_item_accessible_set_image_description; + iface->get_image_size = caja_icon_canvas_item_accessible_get_image_size; + iface->get_image_position = caja_icon_canvas_item_accessible_get_image_position; +} + +static gint +caja_icon_canvas_item_accessible_get_offset_at_point (AtkText *text, + gint x, + gint y, + AtkCoordType coords) +{ + gint real_x, real_y, real_width, real_height; + CajaIconCanvasItem *item; + gint editable_height; + gint offset = 0; + gint index; + PangoLayout *layout, *editable_layout, *additional_layout; + PangoRectangle rect0; + char *icon_text; + gboolean have_editable; + gboolean have_additional; + gint text_offset; + + atk_component_get_extents (ATK_COMPONENT (text), &real_x, &real_y, + &real_width, &real_height, coords); + + x -= real_x; + y -= real_y; + + item = eel_accessibility_get_gobject (ATK_OBJECT (text)); + + if (item->details->pixbuf) + { + y -= gdk_pixbuf_get_height (item->details->pixbuf); + } + have_editable = item->details->editable_text != NULL && + item->details->editable_text[0] != '\0'; + have_additional = item->details->additional_text != NULL &&item->details->additional_text[0] != '\0'; + + editable_layout = NULL; + additional_layout = NULL; + if (have_editable) + { + editable_layout = get_label_layout (&item->details->editable_text_layout, item, item->details->editable_text); + prepare_pango_layout_for_draw (item, editable_layout); + pango_layout_get_pixel_size (editable_layout, NULL, &editable_height); + if (y >= editable_height && + have_additional) + { + prepare_pango_layout_for_draw (item, editable_layout); + additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text); + layout = additional_layout; + icon_text = item->details->additional_text; + y -= editable_height + LABEL_LINE_SPACING; + } + else + { + layout = editable_layout; + icon_text = item->details->editable_text; + } + } + else if (have_additional) + { + additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text); + prepare_pango_layout_for_draw (item, additional_layout); + layout = additional_layout; + icon_text = item->details->additional_text; + } + else + { + return 0; + } + + text_offset = 0; + if (have_editable) + { + pango_layout_index_to_pos (editable_layout, 0, &rect0); + text_offset = PANGO_PIXELS (rect0.x); + } + if (have_additional) + { + gint itmp; + + pango_layout_index_to_pos (additional_layout, 0, &rect0); + itmp = PANGO_PIXELS (rect0.x); + if (itmp < text_offset) + { + text_offset = itmp; + } + } + pango_layout_index_to_pos (layout, 0, &rect0); + x += text_offset; + if (!pango_layout_xy_to_index (layout, + x * PANGO_SCALE, + y * PANGO_SCALE, + &index, NULL)) + { + if (x < 0 || y < 0) + { + index = 0; + } + else + { + index = -1; + } + } + if (index == -1) + { + offset = g_utf8_strlen (icon_text, -1); + } + else + { + offset = g_utf8_pointer_to_offset (icon_text, icon_text + index); + } + if (layout == additional_layout) + { + offset += g_utf8_strlen (item->details->editable_text, -1); + } + + if (editable_layout != NULL) + { + g_object_unref (editable_layout); + } + + if (additional_layout != NULL) + { + g_object_unref (additional_layout); + } + + return offset; +} + +static void +caja_icon_canvas_item_accessible_get_character_extents (AtkText *text, + gint offset, + gint *x, + gint *y, + gint *width, + gint *height, + AtkCoordType coords) +{ + gint pos_x, pos_y; + gint len, byte_offset; + gint editable_height; + gchar *icon_text; + CajaIconCanvasItem *item; + PangoLayout *layout, *editable_layout, *additional_layout; + PangoRectangle rect; + PangoRectangle rect0; + gboolean have_editable; + gint text_offset; + + atk_component_get_position (ATK_COMPONENT (text), &pos_x, &pos_y, coords); + item = eel_accessibility_get_gobject (ATK_OBJECT (text)); + + if (item->details->pixbuf) + { + pos_y += gdk_pixbuf_get_height (item->details->pixbuf); + } + + have_editable = item->details->editable_text != NULL && + item->details->editable_text[0] != '\0'; + if (have_editable) + { + len = g_utf8_strlen (item->details->editable_text, -1); + } + else + { + len = 0; + } + + editable_layout = get_label_layout (&item->details->editable_text_layout, item, item->details->editable_text); + additional_layout = get_label_layout (&item->details->additional_text_layout, item, item->details->additional_text); + + if (offset < len) + { + icon_text = item->details->editable_text; + layout = editable_layout; + } + else + { + offset -= len; + icon_text = item->details->additional_text; + layout = additional_layout; + pos_y += LABEL_LINE_SPACING; + if (have_editable) + { + pango_layout_get_pixel_size (editable_layout, NULL, &editable_height); + pos_y += editable_height; + } + } + byte_offset = g_utf8_offset_to_pointer (icon_text, offset) - icon_text; + pango_layout_index_to_pos (layout, byte_offset, &rect); + text_offset = 0; + if (have_editable) + { + pango_layout_index_to_pos (editable_layout, 0, &rect0); + text_offset = PANGO_PIXELS (rect0.x); + } + if (item->details->additional_text != NULL && + item->details->additional_text[0] != '\0') + { + gint itmp; + + pango_layout_index_to_pos (additional_layout, 0, &rect0); + itmp = PANGO_PIXELS (rect0.x); + if (itmp < text_offset) + { + text_offset = itmp; + } + } + + g_object_unref (editable_layout); + g_object_unref (additional_layout); + + *x = pos_x + PANGO_PIXELS (rect.x) - text_offset; + *y = pos_y + PANGO_PIXELS (rect.y); + *width = PANGO_PIXELS (rect.width); + *height = PANGO_PIXELS (rect.height); +} + +static void +caja_icon_canvas_item_accessible_text_interface_init (AtkTextIface *iface) +{ + iface->get_text = eel_accessibility_text_get_text; + iface->get_character_at_offset = eel_accessibility_text_get_character_at_offset; + iface->get_text_before_offset = eel_accessibility_text_get_text_before_offset; + iface->get_text_at_offset = eel_accessibility_text_get_text_at_offset; + iface->get_text_after_offset = eel_accessibility_text_get_text_after_offset; + iface->get_character_count = eel_accessibility_text_get_character_count; + iface->get_character_extents = caja_icon_canvas_item_accessible_get_character_extents; + iface->get_offset_at_point = caja_icon_canvas_item_accessible_get_offset_at_point; +} + +static GType +caja_icon_canvas_item_accessible_get_type (void) +{ + static GType type = 0; + + if (!type) + { + const GInterfaceInfo atk_image_info = + { + (GInterfaceInitFunc) + caja_icon_canvas_item_accessible_image_interface_init, + (GInterfaceFinalizeFunc) NULL, + NULL + }; + + const GInterfaceInfo atk_text_info = + { + (GInterfaceInitFunc) + caja_icon_canvas_item_accessible_text_interface_init, + (GInterfaceFinalizeFunc) NULL, + NULL + }; + + const GInterfaceInfo atk_action_info = + { + (GInterfaceInitFunc) + caja_icon_canvas_item_accessible_action_interface_init, + (GInterfaceFinalizeFunc) NULL, + NULL + }; + + type = eel_accessibility_create_derived_type ( + "CajaIconCanvasItemAccessibility", + EEL_TYPE_CANVAS_ITEM, + caja_icon_canvas_item_accessible_class_init); + + if (type != G_TYPE_INVALID) + { + g_type_add_interface_static ( + type, ATK_TYPE_IMAGE, &atk_image_info); + + g_type_add_interface_static ( + type, ATK_TYPE_TEXT, &atk_text_info); + + g_type_add_interface_static ( + type, ATK_TYPE_ACTION, &atk_action_info); + + } + } + + return type; +} + +static AtkObject * +caja_icon_canvas_item_accessible_create (GObject *for_object) +{ + GType type; + AtkObject *accessible; + CajaIconCanvasItem *item; + GString *item_text; + + item = CAJA_ICON_CANVAS_ITEM (for_object); + g_assert (item != NULL); + + type = caja_icon_canvas_item_accessible_get_type (); + + if (type == G_TYPE_INVALID) + { + return atk_no_op_object_new (for_object); + } + + item_text = g_string_new (NULL); + if (item->details->editable_text) + { + g_string_append (item_text, item->details->editable_text); + } + if (item->details->additional_text) + { + g_string_append (item_text, item->details->additional_text); + } + item->details->text_util = gail_text_util_new (); + gail_text_util_text_setup (item->details->text_util, + item_text->str); + g_string_free (item_text, TRUE); + + accessible = g_object_new (type, NULL); + accessible = eel_accessibility_set_atk_object_return + (for_object, accessible); + atk_object_set_role (accessible, ATK_ROLE_ICON); + return accessible; +} + +EEL_ACCESSIBLE_FACTORY (caja_icon_canvas_item_accessible_get_type (), + "CajaIconCanvasItemAccessibilityFactory", + caja_icon_canvas_item_accessible, + caja_icon_canvas_item_accessible_create) + + +static GailTextUtil * +caja_icon_canvas_item_get_text (GObject *text) +{ + return CAJA_ICON_CANVAS_ITEM (text)->details->text_util; +} + +static void +caja_icon_canvas_item_text_interface_init (EelAccessibleTextIface *iface) +{ + iface->get_text = caja_icon_canvas_item_get_text; +} + +void +caja_icon_canvas_item_set_entire_text (CajaIconCanvasItem *item, + gboolean entire_text) +{ + if (item->details->entire_text != entire_text) + { + item->details->entire_text = entire_text; + + caja_icon_canvas_item_invalidate_label_size (item); + eel_canvas_item_request_update (EEL_CANVAS_ITEM (item)); + } +} + + +/* Class initialization function for the icon canvas item. */ +static void +caja_icon_canvas_item_class_init (CajaIconCanvasItemClass *class) +{ + GObjectClass *object_class; + EelCanvasItemClass *item_class; + + object_class = G_OBJECT_CLASS (class); + item_class = EEL_CANVAS_ITEM_CLASS (class); + + object_class->finalize = caja_icon_canvas_item_finalize; + object_class->set_property = caja_icon_canvas_item_set_property; + object_class->get_property = caja_icon_canvas_item_get_property; + + g_object_class_install_property ( + object_class, + PROP_EDITABLE_TEXT, + g_param_spec_string ("editable_text", + "editable text", + "the editable label", + "", G_PARAM_READWRITE)); + + g_object_class_install_property ( + object_class, + PROP_ADDITIONAL_TEXT, + g_param_spec_string ("additional_text", + "additional text", + "some more text", + "", G_PARAM_READWRITE)); + + g_object_class_install_property ( + object_class, + PROP_HIGHLIGHTED_FOR_SELECTION, + g_param_spec_boolean ("highlighted_for_selection", + "highlighted for selection", + "whether we are highlighted for a selection", + FALSE, G_PARAM_READWRITE)); + + g_object_class_install_property ( + object_class, + PROP_HIGHLIGHTED_AS_KEYBOARD_FOCUS, + g_param_spec_boolean ("highlighted_as_keyboard_focus", + "highlighted as keyboard focus", + "whether we are highlighted to render keyboard focus", + FALSE, G_PARAM_READWRITE)); + + + g_object_class_install_property ( + object_class, + PROP_HIGHLIGHTED_FOR_DROP, + g_param_spec_boolean ("highlighted_for_drop", + "highlighted for drop", + "whether we are highlighted for a D&D drop", + FALSE, G_PARAM_READWRITE)); + + g_object_class_install_property ( + object_class, + PROP_HIGHLIGHTED_FOR_CLIPBOARD, + g_param_spec_boolean ("highlighted_for_clipboard", + "highlighted for clipboard", + "whether we are highlighted for a clipboard paste (after we have been cut)", + FALSE, G_PARAM_READWRITE)); + + item_class->update = caja_icon_canvas_item_update; + item_class->draw = caja_icon_canvas_item_draw; + item_class->point = caja_icon_canvas_item_point; + item_class->translate = caja_icon_canvas_item_translate; + item_class->bounds = caja_icon_canvas_item_bounds; + item_class->event = caja_icon_canvas_item_event; + + EEL_OBJECT_SET_FACTORY (CAJA_TYPE_ICON_CANVAS_ITEM, + caja_icon_canvas_item_accessible); + + g_type_class_add_private (class, sizeof (CajaIconCanvasItemDetails)); +} + + |