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author | Perberos <[email protected]> | 2011-11-08 16:22:08 -0300 |
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committer | Perberos <[email protected]> | 2011-11-08 16:22:08 -0300 |
commit | f45852ab2a7126f354079499fc8b03976c0eab27 (patch) | |
tree | 885c32d804d3c970c5da41a5527882e8a956b42d /src/gsm_color_button.c | |
download | mate-system-monitor-f45852ab2a7126f354079499fc8b03976c0eab27.tar.bz2 mate-system-monitor-f45852ab2a7126f354079499fc8b03976c0eab27.tar.xz |
initial
Diffstat (limited to 'src/gsm_color_button.c')
-rw-r--r-- | src/gsm_color_button.c | 923 |
1 files changed, 923 insertions, 0 deletions
diff --git a/src/gsm_color_button.c b/src/gsm_color_button.c new file mode 100644 index 0000000..ce72cc1 --- /dev/null +++ b/src/gsm_color_button.c @@ -0,0 +1,923 @@ +/* + * Mate system monitor colour pickers + * Copyright (C) 2007 Karl Lattimer <[email protected]> + * All rights reserved. + * + * 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 software 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with the software; see the file COPYING. If not, + * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <config.h> + +#include <glib/gi18n.h> +#include <gtk/gtk.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <string.h> +#include <signal.h> +#include <gdk/gdkkeysyms.h> +#include <math.h> +#include <cairo.h> + +#include "gsm_color_button.h" + +#define GSM_COLOR_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GSM_TYPE_COLOR_BUTTON, GSMColorButtonPrivate)) + +struct _GSMColorButtonPrivate +{ + GtkWidget *cs_dialog; /* Color selection dialog */ + + gchar *title; /* Title for the color selection window */ + + GdkColor color; + + gdouble fraction; /* Only used by GSMCP_TYPE_PIE */ + guint type; + cairo_surface_t *image_buffer; + gdouble highlight; +}; + +/* Properties */ +enum +{ + PROP_0, + PROP_PERCENTAGE, + PROP_TITLE, + PROP_COLOR, + PROP_TYPE +}; + +/* Signals */ +enum +{ + COLOR_SET, + LAST_SIGNAL +}; + +#define GSMCP_MIN_WIDTH 15 +#define GSMCP_MIN_HEIGHT 15 + +static void gsm_color_button_class_intern_init (gpointer); +static void gsm_color_button_class_init (GSMColorButtonClass * klass); +static void gsm_color_button_init (GSMColorButton * color_button); +static void gsm_color_button_finalize (GObject * object); +static void gsm_color_button_set_property (GObject * object, guint param_id, + const GValue * value, + GParamSpec * pspec); +static void gsm_color_button_get_property (GObject * object, guint param_id, + GValue * value, + GParamSpec * pspec); +static void gsm_color_button_realize (GtkWidget * widget); +static void gsm_color_button_size_request (GtkWidget * widget, + GtkRequisition * requisition); +static void gsm_color_button_size_allocate (GtkWidget * widget, + GtkAllocation * allocation); +static void gsm_color_button_unrealize (GtkWidget * widget); +static void gsm_color_button_state_changed (GtkWidget * widget, + GtkStateType previous_state); +static void gsm_color_button_style_set (GtkWidget * widget, + GtkStyle * previous_style); +static gint gsm_color_button_clicked (GtkWidget * widget, + GdkEventButton * event); +static gboolean gsm_color_button_enter_notify (GtkWidget * widget, + GdkEventCrossing * event); +static gboolean gsm_color_button_leave_notify (GtkWidget * widget, + GdkEventCrossing * event); +/* source side drag signals */ +static void gsm_color_button_drag_begin (GtkWidget * widget, + GdkDragContext * context, + gpointer data); +static void gsm_color_button_drag_data_get (GtkWidget * widget, + GdkDragContext * context, + GtkSelectionData * selection_data, + guint info, guint time, + GSMColorButton * color_button); + +/* target side drag signals */ +static void gsm_color_button_drag_data_received (GtkWidget * widget, + GdkDragContext * context, + gint x, + gint y, + GtkSelectionData * + selection_data, guint info, + guint32 time, + GSMColorButton * + color_button); + + +static guint color_button_signals[LAST_SIGNAL] = { 0 }; + +static gpointer gsm_color_button_parent_class = NULL; + +static const GtkTargetEntry drop_types[] = { {"application/x-color", 0, 0} }; + +GType +gsm_color_button_get_type () +{ + static GType gsm_color_button_type = 0; + + if (!gsm_color_button_type) + { + static const GTypeInfo gsm_color_button_info = { + sizeof (GSMColorButtonClass), + NULL, + NULL, + (GClassInitFunc) gsm_color_button_class_intern_init, + NULL, + NULL, + sizeof (GSMColorButton), + 0, + (GInstanceInitFunc) gsm_color_button_init, + }; + + gsm_color_button_type = + g_type_register_static (GTK_TYPE_DRAWING_AREA, "GSMColorButton", + &gsm_color_button_info, 0); + } + + return gsm_color_button_type; +} + +static void +gsm_color_button_class_intern_init (gpointer klass) +{ + gsm_color_button_parent_class = g_type_class_peek_parent (klass); + gsm_color_button_class_init ((GSMColorButtonClass *) klass); +} + +static void +gsm_color_button_class_init (GSMColorButtonClass * klass) +{ + GObjectClass *gobject_class; + GtkWidgetClass *widget_class; + + gobject_class = G_OBJECT_CLASS (klass); + widget_class = GTK_WIDGET_CLASS (klass); + + gobject_class->get_property = gsm_color_button_get_property; + gobject_class->set_property = gsm_color_button_set_property; + gobject_class->finalize = gsm_color_button_finalize; + widget_class->state_changed = gsm_color_button_state_changed; + widget_class->size_request = gsm_color_button_size_request; + widget_class->size_allocate = gsm_color_button_size_allocate; + widget_class->realize = gsm_color_button_realize; + widget_class->unrealize = gsm_color_button_unrealize; + widget_class->style_set = gsm_color_button_style_set; + widget_class->button_release_event = gsm_color_button_clicked; + widget_class->enter_notify_event = gsm_color_button_enter_notify; + widget_class->leave_notify_event = gsm_color_button_leave_notify; + + klass->color_set = NULL; + + g_object_class_install_property (gobject_class, + PROP_PERCENTAGE, + g_param_spec_double ("fraction", + _("Fraction"), + _("Percentage full for pie colour pickers"), + 0, 1, 0.5, + G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, + PROP_TITLE, + g_param_spec_string ("title", + _("Title"), + _("The title of the color selection dialog"), + _("Pick a Color"), + G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, + PROP_COLOR, + g_param_spec_boxed ("color", + _("Current Color"), + _("The selected color"), + GDK_TYPE_COLOR, + G_PARAM_READWRITE)); + + g_object_class_install_property (gobject_class, + PROP_TYPE, + g_param_spec_uint ("type", _("Type"), + _("Type of color picker"), + 0, 4, 0, + G_PARAM_READWRITE)); + + color_button_signals[COLOR_SET] = g_signal_new ("color_set", + G_TYPE_FROM_CLASS + (gobject_class), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET + (GSMColorButtonClass, + color_set), NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + g_type_class_add_private (gobject_class, sizeof (GSMColorButtonPrivate)); +} + + +static cairo_surface_t * +fill_image_buffer_from_file (cairo_t *cr, const char *filePath) +{ + GError *error = NULL; + RsvgHandle *handle; + cairo_surface_t *tmp_surface; + cairo_t *tmp_cr; + + handle = rsvg_handle_new_from_file (filePath, &error); + + if (handle == NULL) { + g_warning("rsvg_handle_new_from_file(\"%s\") failed: %s", + filePath, (error ? error->message : "unknown error")); + if (error) + g_error_free(error); + return NULL; + } + + tmp_surface = cairo_surface_create_similar (cairo_get_target (cr), + CAIRO_CONTENT_COLOR_ALPHA, + 32, 32); + tmp_cr = cairo_create (tmp_surface); + rsvg_handle_render_cairo (handle, tmp_cr); + cairo_destroy (tmp_cr); + rsvg_handle_free (handle); + return tmp_surface; +} + + +static void +render (GtkWidget * widget) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (widget); + GdkColor *color, tmp_color = color_button->priv->color; + color = &tmp_color; + cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (widget)); + cairo_path_t *path = NULL; + gint width, height; + gdouble radius, arc_start, arc_end; + gint highlight_factor; + + if (color_button->priv->highlight > 0) { + highlight_factor = 8192 * color_button->priv->highlight; + + if (color->red + highlight_factor > 65535) + color->red = 65535; + else + color->red = color->red + highlight_factor; + + if (color->blue + highlight_factor > 65535) + color->blue = 65535; + else + color->blue = color->blue + highlight_factor; + + if (color->green + highlight_factor > 65535) + color->green = 65535; + else + color->green = color->green + highlight_factor; + } + gdk_cairo_set_source_color (cr, color); + + #if GTK_CHECK_VERSION(3, 0, 0) + width = gdk_window_get_width(gtk_widget_get_window(widget)); + height = gdk_window_get_height(gtk_widget_get_window(widget)); + #else + gdk_drawable_get_size(gtk_widget_get_window(widget), &width, &height); + #endif + + + switch (color_button->priv->type) + { + case GSMCP_TYPE_CPU: + //gtk_widget_set_size_request (widget, GSMCP_MIN_WIDTH, GSMCP_MIN_HEIGHT); + cairo_paint (cr); + cairo_set_line_width (cr, 1); + cairo_set_source_rgba (cr, 0, 0, 0, 0.5); + cairo_rectangle (cr, 0.5, 0.5, width - 1, height - 1); + cairo_stroke (cr); + cairo_set_line_width (cr, 1); + cairo_set_source_rgba (cr, 1, 1, 1, 0.4); + cairo_rectangle (cr, 1.5, 1.5, width - 3, height - 3); + cairo_stroke (cr); + break; + case GSMCP_TYPE_PIE: + if (width < 32) // 32px minimum size + gtk_widget_set_size_request (widget, 32, 32); + if (width < height) + radius = width / 2; + else + radius = height / 2; + + arc_start = -G_PI_2 + 2 * G_PI * color_button->priv->fraction; + arc_end = -G_PI_2; + + cairo_set_line_width (cr, 1); + + // Draw external stroke and fill + if (color_button->priv->fraction < 0.01) { + cairo_arc (cr, (width / 2) + .5, (height / 2) + .5, 4.5, + 0, 2 * G_PI); + } else if (color_button->priv->fraction > 0.99) { + cairo_arc (cr, (width / 2) + .5, (height / 2) + .5, radius - 2.25, + 0, 2 * G_PI); + } else { + cairo_arc_negative (cr, (width / 2) + .5, (height / 2) + .5, radius - 2.25, + arc_start, arc_end); + cairo_arc_negative (cr, (width / 2) + .5, (height / 2) + .5, 4.5, + arc_end, arc_start); + cairo_arc_negative (cr, (width / 2) + .5, (height / 2) + .5, radius - 2.25, + arc_start, arc_start); + } + cairo_fill_preserve (cr); + cairo_set_source_rgba (cr, 0, 0, 0, 0.7); + cairo_stroke (cr); + + // Draw internal highlight + cairo_set_source_rgba (cr, 1, 1, 1, 0.45); + cairo_set_line_width (cr, 1); + + if (color_button->priv->fraction < 0.03) { + cairo_arc (cr, (width / 2) + .5, (height / 2) + .5, 3.25, + 0, 2 * G_PI); + } else if (color_button->priv->fraction > 0.99) { + cairo_arc (cr, (width / 2) + .5, (height / 2) + .5, radius - 3.5, + 0, 2 * G_PI); + } else { + cairo_arc_negative (cr, (width / 2) + .5, (height / 2) + .5, radius - 3.5, + arc_start + (1 / (radius - 3.75)), + arc_end - (1 / (radius - 3.75))); + cairo_arc_negative (cr, (width / 2) + .5, (height / 2) + .5, 3.25, + arc_end - (1 / (radius - 3.75)), + arc_start + (1 / (radius - 3.75))); + cairo_arc_negative (cr, (width / 2) + .5, (height / 2) + .5, radius - 3.5, + arc_start + (1 / (radius - 3.75)), + arc_start + (1 / (radius - 3.75))); + } + cairo_stroke (cr); + + // Draw external shape + cairo_set_line_width (cr, 1); + cairo_set_source_rgba (cr, 0, 0, 0, 0.2); + cairo_arc (cr, (width / 2) + .5, (height / 2) + .5, radius - 1.25, 0, + G_PI * 2); + cairo_stroke (cr); + + break; + case GSMCP_TYPE_NETWORK_IN: + if (color_button->priv->image_buffer == NULL) + color_button->priv->image_buffer = + fill_image_buffer_from_file (cr, DATADIR "/pixmaps/mate-system-monitor/download.svg"); + gtk_widget_set_size_request (widget, 32, 32); + cairo_move_to (cr, 8.5, 1.5); + cairo_line_to (cr, 23.5, 1.5); + cairo_line_to (cr, 23.5, 11.5); + cairo_line_to (cr, 29.5, 11.5); + cairo_line_to (cr, 16.5, 27.5); + cairo_line_to (cr, 15.5, 27.5); + cairo_line_to (cr, 2.5, 11.5); + cairo_line_to (cr, 8.5, 11.5); + cairo_line_to (cr, 8.5, 1.5); + cairo_close_path (cr); + path = cairo_copy_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_set_line_width (cr, 1); + cairo_fill_preserve (cr); + cairo_set_miter_limit (cr, 5.0); + cairo_stroke (cr); + cairo_set_source_rgba (cr, 0, 0, 0, 0.5); + cairo_append_path (cr, path); + cairo_path_destroy(path); + cairo_stroke (cr); + cairo_set_source_surface (cr, color_button->priv->image_buffer, 0.0, + 0.0); + cairo_paint (cr); + + break; + case GSMCP_TYPE_NETWORK_OUT: + if (color_button->priv->image_buffer == NULL) + color_button->priv->image_buffer = + fill_image_buffer_from_file (cr, DATADIR "/pixmaps/mate-system-monitor/upload.svg"); + gtk_widget_set_size_request (widget, 32, 32); + cairo_move_to (cr, 16.5, 1.5); + cairo_line_to (cr, 29.5, 17.5); + cairo_line_to (cr, 23.5, 17.5); + cairo_line_to (cr, 23.5, 27.5); + cairo_line_to (cr, 8.5, 27.5); + cairo_line_to (cr, 8.5, 17.5); + cairo_line_to (cr, 2.5, 17.5); + cairo_line_to (cr, 15.5, 1.5); + cairo_line_to (cr, 16.5, 1.5); + cairo_close_path (cr); + path = cairo_copy_path (cr); + cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); + cairo_set_line_width (cr, 1); + cairo_fill_preserve (cr); + cairo_set_miter_limit (cr, 5.0); + cairo_stroke (cr); + cairo_set_source_rgba (cr, 0, 0, 0, 0.5); + cairo_append_path (cr, path); + cairo_path_destroy(path); + cairo_stroke (cr); + cairo_set_source_surface (cr, color_button->priv->image_buffer, 0.0, + 0.0); + cairo_paint (cr); + + break; + } + cairo_destroy (cr); +} + +/* Handle exposure events for the color picker's drawing area */ +static gint +expose_event (GtkWidget * widget, GdkEventExpose * event, gpointer data) +{ + render (GTK_WIDGET (data)); + + return FALSE; +} + +static void +gsm_color_button_realize (GtkWidget * widget) +{ + GTK_WIDGET_CLASS (gsm_color_button_parent_class)->realize (widget); + render (widget); +} + +static void +gsm_color_button_size_request (GtkWidget * widget, + GtkRequisition * requisition) +{ + g_return_if_fail (widget != NULL || requisition != NULL); + g_return_if_fail (GSM_IS_COLOR_BUTTON (widget)); + + requisition->width = GSMCP_MIN_WIDTH; + requisition->height = GSMCP_MIN_HEIGHT; +} + +static void +gsm_color_button_size_allocate (GtkWidget * widget, + GtkAllocation * allocation) +{ + GSMColorButton *color_button; + + g_return_if_fail (widget != NULL || allocation != NULL); + g_return_if_fail (GSM_IS_COLOR_BUTTON (widget)); + + gtk_widget_set_allocation (widget, allocation); + color_button = GSM_COLOR_BUTTON (widget); + + if (gtk_widget_get_realized (widget)) + { + gdk_window_move_resize (gtk_widget_get_window (widget), allocation->x, allocation->y, + allocation->width, allocation->height); + } +} + +static void +gsm_color_button_unrealize (GtkWidget * widget) +{ + + GTK_WIDGET_CLASS (gsm_color_button_parent_class)->unrealize (widget); +} + +static void +gsm_color_button_style_set (GtkWidget * widget, GtkStyle * previous_style) +{ + + GTK_WIDGET_CLASS (gsm_color_button_parent_class)->style_set (widget, + previous_style); + +} + +static void +gsm_color_button_state_changed (GtkWidget * widget, + GtkStateType previous_state) +{ +} + +static void +gsm_color_button_drag_data_received (GtkWidget * widget, + GdkDragContext * context, + gint x, + gint y, + GtkSelectionData * selection_data, + guint info, + guint32 time, + GSMColorButton * color_button) +{ + gint length; + guint16 *dropped; + + length = gtk_selection_data_get_length (selection_data); + + if (length < 0) + return; + + /* We accept drops with the wrong format, since the KDE color + * chooser incorrectly drops application/x-color with format 8. + */ + if (length != 8) + { + g_warning (_("Received invalid color data\n")); + return; + } + + + dropped = (guint16 *) gtk_selection_data_get_data (selection_data); + + color_button->priv->color.red = dropped[0]; + color_button->priv->color.green = dropped[1]; + color_button->priv->color.blue = dropped[2]; + + gtk_widget_queue_draw (GTK_WIDGET (&color_button->widget)); + + g_signal_emit (color_button, color_button_signals[COLOR_SET], 0); + + g_object_freeze_notify (G_OBJECT (color_button)); + g_object_notify (G_OBJECT (color_button), "color"); + g_object_thaw_notify (G_OBJECT (color_button)); +} + + +static void +set_color_icon (GdkDragContext * context, GdkColor * color) +{ + GdkPixbuf *pixbuf; + guint32 pixel; + + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 48, 32); + + pixel = ((color->red & 0xff00) << 16) | + ((color->green & 0xff00) << 8) | (color->blue & 0xff00); + + gdk_pixbuf_fill (pixbuf, pixel); + + gtk_drag_set_icon_pixbuf (context, pixbuf, -2, -2); + g_object_unref (pixbuf); +} + +static void +gsm_color_button_drag_begin (GtkWidget * widget, + GdkDragContext * context, gpointer data) +{ + GSMColorButton *color_button = data; + + set_color_icon (context, &color_button->priv->color); +} + +static void +gsm_color_button_drag_data_get (GtkWidget * widget, + GdkDragContext * context, + GtkSelectionData * selection_data, + guint info, + guint time, GSMColorButton * color_button) +{ + guint16 dropped[4]; + + dropped[0] = color_button->priv->color.red; + dropped[1] = color_button->priv->color.green; + dropped[2] = color_button->priv->color.blue; + dropped[3] = 65535; // This widget doesn't care about alpha + + gtk_selection_data_set (selection_data, gtk_selection_data_get_target (selection_data), + 16, (guchar *) dropped, 8); +} + + +static void +gsm_color_button_init (GSMColorButton * color_button) +{ + color_button->priv = GSM_COLOR_BUTTON_GET_PRIVATE (color_button); + + rsvg_init (); + + color_button->priv->color.red = 0; + color_button->priv->color.green = 0; + color_button->priv->color.blue = 0; + color_button->priv->fraction = 0.5; + color_button->priv->type = GSMCP_TYPE_CPU; + color_button->priv->image_buffer = NULL; + color_button->priv->title = g_strdup (_("Pick a Color")); /* default title */ + + gtk_drag_dest_set (GTK_WIDGET (color_button), + GTK_DEST_DEFAULT_MOTION | + GTK_DEST_DEFAULT_HIGHLIGHT | + GTK_DEST_DEFAULT_DROP, drop_types, 1, GDK_ACTION_COPY); + gtk_drag_source_set (GTK_WIDGET (color_button), + GDK_BUTTON1_MASK | GDK_BUTTON3_MASK, + drop_types, 1, GDK_ACTION_COPY); + g_signal_connect (color_button, "drag_begin", + G_CALLBACK (gsm_color_button_drag_begin), color_button); + g_signal_connect (color_button, "drag_data_received", + G_CALLBACK (gsm_color_button_drag_data_received), + color_button); + g_signal_connect (color_button, "drag_data_get", + G_CALLBACK (gsm_color_button_drag_data_get), + color_button); + + gtk_widget_add_events (GTK_WIDGET(color_button), GDK_ENTER_NOTIFY_MASK + | GDK_LEAVE_NOTIFY_MASK); + + gtk_widget_set_tooltip_text (GTK_WIDGET(color_button), _("Click to set graph colors")); + + g_signal_connect (color_button, "expose-event", + G_CALLBACK (expose_event), color_button); +} + +static void +gsm_color_button_finalize (GObject * object) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (object); + + if (color_button->priv->cs_dialog != NULL) + gtk_widget_destroy (color_button->priv->cs_dialog); + color_button->priv->cs_dialog = NULL; + + g_free (color_button->priv->title); + color_button->priv->title = NULL; + + cairo_surface_destroy (color_button->priv->image_buffer); + color_button->priv->image_buffer = NULL; + + rsvg_term (); + G_OBJECT_CLASS (gsm_color_button_parent_class)->finalize (object); +} + +GtkWidget * +gsm_color_button_new (const GdkColor * color, guint type) +{ + return g_object_new (GSM_TYPE_COLOR_BUTTON, "color", color, "type", type, + NULL); +} + +static void +dialog_response (GtkWidget * widget, GtkResponseType response, gpointer data) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (data); + GtkColorSelection *color_selection; + + if (response == GTK_RESPONSE_OK) { + color_selection = + GTK_COLOR_SELECTION (gtk_color_selection_dialog_get_color_selection (GTK_COLOR_SELECTION_DIALOG + (color_button->priv->cs_dialog))); + + gtk_color_selection_get_current_color (color_selection, + &color_button->priv->color); + + gtk_widget_hide (color_button->priv->cs_dialog); + + gtk_widget_queue_draw (GTK_WIDGET (&color_button->widget)); + + g_signal_emit (color_button, color_button_signals[COLOR_SET], 0); + + g_object_freeze_notify (G_OBJECT (color_button)); + g_object_notify (G_OBJECT (color_button), "color"); + g_object_thaw_notify (G_OBJECT (color_button)); + } + else /* (response == GTK_RESPONSE_CANCEL) */ + gtk_widget_hide (color_button->priv->cs_dialog); +} + +static gboolean +dialog_destroy (GtkWidget * widget, gpointer data) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (data); + + color_button->priv->cs_dialog = NULL; + + return FALSE; +} + +static gint +gsm_color_button_clicked (GtkWidget * widget, GdkEventButton * event) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (widget); + GtkColorSelectionDialog *color_dialog; + + /* if dialog already exists, make sure it's shown and raised */ + if (!color_button->priv->cs_dialog) + { + /* Create the dialog and connects its buttons */ + GtkWidget *parent; + + parent = gtk_widget_get_toplevel (GTK_WIDGET (color_button)); + + color_button->priv->cs_dialog = + gtk_color_selection_dialog_new (color_button->priv->title); + + color_dialog = + GTK_COLOR_SELECTION_DIALOG (color_button->priv->cs_dialog); + + if (gtk_widget_is_toplevel (parent) && GTK_IS_WINDOW (parent)) + { + if (GTK_WINDOW (parent) != + gtk_window_get_transient_for (GTK_WINDOW (color_dialog))) + gtk_window_set_transient_for (GTK_WINDOW (color_dialog), + GTK_WINDOW (parent)); + + gtk_window_set_modal (GTK_WINDOW (color_dialog), + gtk_window_get_modal (GTK_WINDOW (parent))); + } + + g_signal_connect (color_dialog, "response", + G_CALLBACK (dialog_response), color_button); + + g_signal_connect (color_dialog, "destroy", + G_CALLBACK (dialog_destroy), color_button); + } + + color_dialog = GTK_COLOR_SELECTION_DIALOG (color_button->priv->cs_dialog); + + gtk_color_selection_set_previous_color (GTK_COLOR_SELECTION + (gtk_color_selection_dialog_get_color_selection (color_dialog)), + &color_button->priv->color); + + gtk_color_selection_set_current_color (GTK_COLOR_SELECTION + (gtk_color_selection_dialog_get_color_selection (color_dialog)), + &color_button->priv->color); + + gtk_window_present (GTK_WINDOW (color_button->priv->cs_dialog)); + return 0; +} + +static gboolean +gsm_color_button_enter_notify (GtkWidget * widget, GdkEventCrossing * event) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (widget); + color_button->priv->highlight = 1.0; + gtk_widget_queue_draw(widget); + return FALSE; +} + +static gboolean +gsm_color_button_leave_notify (GtkWidget * widget, GdkEventCrossing * event) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (widget); + color_button->priv->highlight = 0; + gtk_widget_queue_draw(widget); + return FALSE; +} + +guint +gsm_color_button_get_cbtype (GSMColorButton * color_button) +{ + g_return_val_if_fail (GSM_IS_COLOR_BUTTON (color_button), 0); + + return color_button->priv->type; +} + +void +gsm_color_button_set_cbtype (GSMColorButton * color_button, guint type) +{ + g_return_if_fail (GSM_IS_COLOR_BUTTON (color_button)); + + color_button->priv->type = type; + + gtk_widget_queue_draw (GTK_WIDGET (&color_button->widget)); + + g_object_notify (G_OBJECT (color_button), "type"); +} + +gdouble +gsm_color_button_get_fraction (GSMColorButton * color_button) +{ + g_return_val_if_fail (GSM_IS_COLOR_BUTTON (color_button), 0); + + return color_button->priv->fraction; +} + +void +gsm_color_button_set_fraction (GSMColorButton * color_button, + gdouble fraction) +{ + g_return_if_fail (GSM_IS_COLOR_BUTTON (color_button)); + + color_button->priv->fraction = fraction; + + gtk_widget_queue_draw (GTK_WIDGET (&color_button->widget)); + + g_object_notify (G_OBJECT (color_button), "fraction"); +} + +void +gsm_color_button_get_color (GSMColorButton * color_button, GdkColor * color) +{ + g_return_if_fail (GSM_IS_COLOR_BUTTON (color_button)); + + color->red = color_button->priv->color.red; + color->green = color_button->priv->color.green; + color->blue = color_button->priv->color.blue; +} + +void +gsm_color_button_set_color (GSMColorButton * color_button, + const GdkColor * color) +{ + g_return_if_fail (GSM_IS_COLOR_BUTTON (color_button)); + g_return_if_fail (color != NULL); + + color_button->priv->color.red = color->red; + color_button->priv->color.green = color->green; + color_button->priv->color.blue = color->blue; + + gtk_widget_queue_draw (GTK_WIDGET (&color_button->widget)); //->priv->draw_area); + + g_object_notify (G_OBJECT (color_button), "color"); +} + +void +gsm_color_button_set_title (GSMColorButton * color_button, + const gchar * title) +{ + gchar *old_title; + + g_return_if_fail (GSM_IS_COLOR_BUTTON (color_button)); + + old_title = color_button->priv->title; + color_button->priv->title = g_strdup (title); + g_free (old_title); + + if (color_button->priv->cs_dialog) + gtk_window_set_title (GTK_WINDOW (color_button->priv->cs_dialog), + color_button->priv->title); + + g_object_notify (G_OBJECT (color_button), "title"); +} + +const gchar* gsm_color_button_get_title(GSMColorButton* color_button) +{ + g_return_val_if_fail(GSM_IS_COLOR_BUTTON(color_button), NULL); + + return color_button->priv->title; +} + +static void +gsm_color_button_set_property (GObject * object, + guint param_id, + const GValue * value, GParamSpec * pspec) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (object); + + switch (param_id) + { + case PROP_PERCENTAGE: + gsm_color_button_set_fraction (color_button, + g_value_get_double (value)); + break; + case PROP_TITLE: + gsm_color_button_set_title (color_button, g_value_get_string (value)); + break; + case PROP_COLOR: + gsm_color_button_set_color (color_button, g_value_get_boxed (value)); + break; + case PROP_TYPE: + gsm_color_button_set_cbtype (color_button, g_value_get_uint (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} + +static void +gsm_color_button_get_property (GObject * object, + guint param_id, + GValue * value, GParamSpec * pspec) +{ + GSMColorButton *color_button = GSM_COLOR_BUTTON (object); + GdkColor color; + + switch (param_id) + { + case PROP_PERCENTAGE: + g_value_set_double (value, + gsm_color_button_get_fraction (color_button)); + break; + case PROP_TITLE: + g_value_set_string (value, gsm_color_button_get_title (color_button)); + break; + case PROP_COLOR: + gsm_color_button_get_color (color_button, &color); + g_value_set_boxed (value, &color); + break; + case PROP_TYPE: + g_value_set_uint (value, gsm_color_button_get_cbtype (color_button)); + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} + +#define __GSM_COLOR_BUTTON_C__ |