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-rw-r--r--eel/eel-image-table.c601
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diff --git a/eel/eel-image-table.c b/eel/eel-image-table.c
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+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+
+/* eel-image-table.c - An image table.
+
+ Copyright (C) 2000 Eazel, Inc.
+
+ The Mate 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.
+
+ The Mate 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 the Mate Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ Authors: Ramiro Estrugo <[email protected]>
+*/
+
+#include <config.h>
+#include "eel-image-table.h"
+
+#include "eel-art-extensions.h"
+#include "eel-art-gtk-extensions.h"
+#include "eel-debug-drawing.h"
+#include "eel-gtk-extensions.h"
+#include "eel-gtk-macros.h"
+#include "eel-labeled-image.h"
+#include "eel-marshal.h"
+#include <gtk/gtk.h>
+
+/* Arguments */
+enum
+{
+ ARG_0,
+ ARG_CHILD_UNDER_POINTER
+};
+
+/* Detail member struct */
+struct EelImageTableDetails
+{
+ GtkWidget *child_under_pointer;
+ GtkWidget *child_being_pressed;
+ GdkGC *clear_gc;
+};
+
+/* Signals */
+typedef enum
+{
+ CHILD_ENTER,
+ CHILD_LEAVE,
+ CHILD_PRESSED,
+ CHILD_RELEASED,
+ CHILD_CLICKED,
+ LAST_SIGNAL
+} ImageTableSignals;
+
+/* Signals */
+static guint image_table_signals[LAST_SIGNAL] = { 0 };
+
+static void eel_image_table_class_init (EelImageTableClass *image_table_class);
+static void eel_image_table_init (EelImageTable *image);
+
+/* GObjectClass methods */
+static void eel_image_table_finalize (GObject *object);
+
+/* GtkWidgetClass methods */
+static void eel_image_table_realize (GtkWidget *widget);
+static void eel_image_table_unrealize (GtkWidget *widget);
+
+/* GtkContainerClass methods */
+static void eel_image_table_remove (GtkContainer *container,
+ GtkWidget *widget);
+static GType eel_image_table_child_type (GtkContainer *container);
+
+/* Private EelImageTable methods */
+static void image_table_emit_signal (EelImageTable *image_table,
+ GtkWidget *child,
+ guint signal_index,
+ int x,
+ int y,
+ int button,
+ guint state,
+ GdkEvent *event);
+
+/* Ancestor callbacks */
+static int ancestor_enter_notify_event (GtkWidget *widget,
+ GdkEventCrossing *event,
+ gpointer event_data);
+static int ancestor_leave_notify_event (GtkWidget *widget,
+ GdkEventCrossing *event,
+ gpointer event_data);
+static int ancestor_motion_notify_event (GtkWidget *widget,
+ GdkEventMotion *event,
+ gpointer event_data);
+static int ancestor_button_press_event (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer event_data);
+static int ancestor_button_release_event (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer event_data);
+
+EEL_CLASS_BOILERPLATE (EelImageTable, eel_image_table, EEL_TYPE_WRAP_TABLE)
+
+static void
+eel_image_table_class_init (EelImageTableClass *image_table_class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (image_table_class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (image_table_class);
+ GtkContainerClass *container_class = GTK_CONTAINER_CLASS (image_table_class);
+
+ /* GObjectClass */
+ object_class->finalize = eel_image_table_finalize;
+
+ /* GtkWidgetClass */
+ widget_class->realize = eel_image_table_realize;
+ widget_class->unrealize = eel_image_table_unrealize;
+
+ /* GtkContainerClass */
+ container_class->remove = eel_image_table_remove;
+ container_class->child_type = eel_image_table_child_type;
+
+ /* Signals */
+ image_table_signals[CHILD_ENTER] = g_signal_new ("child_enter",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EelImageTableClass, child_enter),
+ NULL, NULL,
+ eel_marshal_VOID__OBJECT_POINTER,
+ G_TYPE_NONE,
+ 2,
+ GTK_TYPE_WIDGET,
+ G_TYPE_POINTER);
+ image_table_signals[CHILD_LEAVE] = g_signal_new ("child_leave",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EelImageTableClass, child_leave),
+ NULL, NULL,
+ eel_marshal_VOID__OBJECT_POINTER,
+ G_TYPE_NONE,
+ 2,
+ GTK_TYPE_WIDGET,
+ G_TYPE_POINTER);
+ image_table_signals[CHILD_PRESSED] = g_signal_new ("child_pressed",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EelImageTableClass, child_pressed),
+ NULL, NULL,
+ eel_marshal_VOID__OBJECT_POINTER,
+ G_TYPE_NONE,
+ 2,
+ GTK_TYPE_WIDGET,
+ G_TYPE_POINTER);
+ image_table_signals[CHILD_RELEASED] = g_signal_new ("child_released",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EelImageTableClass, child_released),
+ NULL, NULL,
+ eel_marshal_VOID__OBJECT_POINTER,
+ G_TYPE_NONE,
+ 2,
+ GTK_TYPE_WIDGET,
+ G_TYPE_POINTER);
+ image_table_signals[CHILD_CLICKED] = g_signal_new ("child_clicked",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EelImageTableClass, child_clicked),
+ NULL, NULL,
+ eel_marshal_VOID__OBJECT_POINTER,
+ G_TYPE_NONE,
+ 2,
+ GTK_TYPE_WIDGET,
+ G_TYPE_POINTER);
+}
+
+static void
+eel_image_table_init (EelImageTable *image_table)
+{
+ gtk_widget_set_has_window (GTK_WIDGET (image_table), FALSE);
+
+ image_table->details = g_new0 (EelImageTableDetails, 1);
+}
+
+/* GObjectClass methods */
+static void
+eel_image_table_finalize (GObject *object)
+{
+ EelImageTable *image_table;
+
+ image_table = EEL_IMAGE_TABLE (object);
+
+ g_free (image_table->details);
+
+ EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static void
+eel_image_table_realize (GtkWidget *widget)
+{
+ GtkWidget *windowed_ancestor;
+
+ g_assert (EEL_IS_IMAGE_TABLE (widget));
+
+ /* Chain realize */
+ EEL_CALL_PARENT (GTK_WIDGET_CLASS, realize, (widget));
+
+ windowed_ancestor = eel_gtk_widget_find_windowed_ancestor (widget);
+ g_assert (GTK_IS_WIDGET (windowed_ancestor));
+
+ gtk_widget_add_events (windowed_ancestor,
+ GDK_BUTTON_PRESS_MASK
+ | GDK_BUTTON_RELEASE_MASK
+ | GDK_BUTTON_MOTION_MASK
+ | GDK_ENTER_NOTIFY_MASK
+ | GDK_LEAVE_NOTIFY_MASK
+ | GDK_POINTER_MOTION_MASK);
+
+ eel_gtk_signal_connect_while_realized (GTK_OBJECT (windowed_ancestor),
+ "enter_notify_event",
+ G_CALLBACK (ancestor_enter_notify_event),
+ widget,
+ widget);
+
+ eel_gtk_signal_connect_while_realized (GTK_OBJECT (windowed_ancestor),
+ "leave_notify_event",
+ G_CALLBACK (ancestor_leave_notify_event),
+ widget,
+ widget);
+
+ eel_gtk_signal_connect_while_realized (GTK_OBJECT (windowed_ancestor),
+ "motion_notify_event",
+ G_CALLBACK (ancestor_motion_notify_event),
+ widget,
+ widget);
+
+ eel_gtk_signal_connect_while_realized (GTK_OBJECT (windowed_ancestor),
+ "button_press_event",
+ G_CALLBACK (ancestor_button_press_event),
+ widget,
+ widget);
+
+ eel_gtk_signal_connect_while_realized (GTK_OBJECT (windowed_ancestor),
+ "button_release_event",
+ G_CALLBACK (ancestor_button_release_event),
+ widget,
+ widget);
+}
+
+static void
+eel_image_table_unrealize (GtkWidget *widget)
+{
+ EelImageTable *image_table;
+
+ g_assert (EEL_IS_IMAGE_TABLE (widget));
+
+ image_table = EEL_IMAGE_TABLE (widget);
+
+ if (image_table->details->clear_gc != NULL)
+ {
+ g_object_unref (image_table->details->clear_gc);
+ image_table->details->clear_gc = NULL;
+ }
+
+ /* Chain unrealize */
+ EEL_CALL_PARENT (GTK_WIDGET_CLASS, unrealize, (widget));
+}
+
+/* GtkContainerClass methods */
+static void
+eel_image_table_remove (GtkContainer *container,
+ GtkWidget *child)
+{
+ EelImageTable *image_table;
+
+ g_assert (EEL_IS_IMAGE_TABLE (container));
+ g_assert (EEL_IS_LABELED_IMAGE (child));
+
+ image_table = EEL_IMAGE_TABLE (container);
+
+ if (child == image_table->details->child_under_pointer)
+ {
+ image_table->details->child_under_pointer = NULL;
+ }
+
+ if (child == image_table->details->child_being_pressed)
+ {
+ image_table->details->child_being_pressed = NULL;
+ }
+
+ EEL_CALL_PARENT (GTK_CONTAINER_CLASS, remove, (container, child));
+}
+
+static GType
+eel_image_table_child_type (GtkContainer *container)
+{
+ return EEL_TYPE_LABELED_IMAGE;
+}
+
+/* Private EelImageTable methods */
+
+static void
+image_table_emit_signal (EelImageTable *image_table,
+ GtkWidget *child,
+ guint signal_index,
+ int x,
+ int y,
+ int button,
+ guint state,
+ GdkEvent *gdk_event)
+{
+ EelImageTableEvent event;
+
+ g_assert (EEL_IS_IMAGE_TABLE (image_table));
+ g_assert (GTK_IS_WIDGET (child));
+ g_assert (signal_index < LAST_SIGNAL);
+
+ event.x = x;
+ event.y = y;
+ event.button = button;
+ event.state = state;
+ event.event = gdk_event;
+
+ g_signal_emit (image_table,
+ image_table_signals[signal_index],
+ 0,
+ child,
+ &event);
+}
+
+static void
+image_table_handle_motion (EelImageTable *image_table,
+ int x,
+ int y,
+ GdkEvent *event)
+{
+ GtkWidget *child;
+ GtkWidget *leave_emit_child = NULL;
+ GtkWidget *enter_emit_child = NULL;
+
+ g_assert (EEL_IS_IMAGE_TABLE (image_table));
+
+ child = eel_wrap_table_find_child_at_event_point (EEL_WRAP_TABLE (image_table), x, y);
+
+ if (child && !gtk_widget_get_sensitive (child))
+ {
+ return;
+ }
+
+ if (child == image_table->details->child_under_pointer)
+ {
+ return;
+ }
+
+ if (child != NULL)
+ {
+ if (image_table->details->child_under_pointer != NULL)
+ {
+ leave_emit_child = image_table->details->child_under_pointer;
+ }
+
+ image_table->details->child_under_pointer = child;
+ enter_emit_child = image_table->details->child_under_pointer;
+ }
+ else
+ {
+ if (image_table->details->child_under_pointer != NULL)
+ {
+ leave_emit_child = image_table->details->child_under_pointer;
+ }
+
+ image_table->details->child_under_pointer = NULL;
+ }
+
+ if (leave_emit_child != NULL)
+ {
+ image_table_emit_signal (image_table,
+ leave_emit_child,
+ CHILD_LEAVE,
+ x,
+ y,
+ 0,
+ 0,
+ (GdkEvent *)event);
+ }
+
+ if (enter_emit_child != NULL)
+ {
+ image_table_emit_signal (image_table,
+ enter_emit_child,
+ CHILD_ENTER,
+ x,
+ y,
+ 0,
+ 0,
+ (GdkEvent *)event);
+ }
+}
+
+static int
+ancestor_enter_notify_event (GtkWidget *widget,
+ GdkEventCrossing *event,
+ gpointer event_data)
+{
+ g_assert (GTK_IS_WIDGET (widget));
+ g_assert (EEL_IS_IMAGE_TABLE (event_data));
+ g_assert (event != NULL);
+
+ image_table_handle_motion (EEL_IMAGE_TABLE (event_data), event->x, event->y, (GdkEvent *) event);
+
+ return FALSE;
+}
+
+static int
+ancestor_leave_notify_event (GtkWidget *widget,
+ GdkEventCrossing *event,
+ gpointer event_data)
+{
+ EelIRect bounds;
+ int x = -1;
+ int y = -1;
+
+ g_assert (GTK_IS_WIDGET (widget));
+ g_assert (EEL_IS_IMAGE_TABLE (event_data));
+ g_assert (event != NULL);
+
+ bounds = eel_gtk_widget_get_bounds (GTK_WIDGET (event_data));
+
+ if (eel_irect_contains_point (bounds, event->x, event->y))
+ {
+ x = event->x;
+ y = event->y;
+ }
+
+ image_table_handle_motion (EEL_IMAGE_TABLE (event_data), x, y, (GdkEvent *) event);
+
+ return FALSE;
+}
+
+static int
+ancestor_motion_notify_event (GtkWidget *widget,
+ GdkEventMotion *event,
+ gpointer event_data)
+{
+ g_assert (GTK_IS_WIDGET (widget));
+ g_assert (EEL_IS_IMAGE_TABLE (event_data));
+ g_assert (event != NULL);
+
+ image_table_handle_motion (EEL_IMAGE_TABLE (event_data), (int) event->x, (int) event->y, (GdkEvent *) event);
+
+ return FALSE;
+}
+
+static int
+ancestor_button_press_event (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer event_data)
+{
+ EelImageTable *image_table;
+ GtkWidget *child;
+
+ g_assert (GTK_IS_WIDGET (widget));
+ g_assert (EEL_IS_IMAGE_TABLE (event_data));
+ g_assert (event != NULL);
+
+ image_table = EEL_IMAGE_TABLE (event_data);
+
+ child = eel_wrap_table_find_child_at_event_point (EEL_WRAP_TABLE (image_table), event->x, event->y);
+
+ if (child && !gtk_widget_get_sensitive (child))
+ {
+ return FALSE;
+ }
+
+ if (child != NULL)
+ {
+ if (child == image_table->details->child_under_pointer)
+ {
+ image_table->details->child_being_pressed = child;
+ image_table_emit_signal (image_table,
+ child,
+ CHILD_PRESSED,
+ event->x,
+ event->y,
+ event->button,
+ event->state,
+ (GdkEvent *)event);
+ }
+ }
+
+ return FALSE;
+}
+
+static int
+ancestor_button_release_event (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer event_data)
+{
+ EelImageTable *image_table;
+ GtkWidget *child;
+ GtkWidget *released_emit_child = NULL;
+ GtkWidget *clicked_emit_child = NULL;
+
+ g_assert (GTK_IS_WIDGET (widget));
+ g_assert (EEL_IS_IMAGE_TABLE (event_data));
+ g_assert (event != NULL);
+
+ image_table = EEL_IMAGE_TABLE (event_data);
+
+ child = eel_wrap_table_find_child_at_event_point (EEL_WRAP_TABLE (image_table), event->x, event->y);
+
+ if (child && !gtk_widget_get_sensitive (child))
+ {
+ return FALSE;
+ }
+
+ if (image_table->details->child_being_pressed != NULL)
+ {
+ released_emit_child = image_table->details->child_being_pressed;
+ }
+
+ if (child != NULL)
+ {
+ if (child == image_table->details->child_being_pressed)
+ {
+ clicked_emit_child = child;
+ }
+ }
+
+ image_table->details->child_being_pressed = NULL;
+
+ if (released_emit_child != NULL)
+ {
+ image_table_emit_signal (image_table,
+ released_emit_child,
+ CHILD_RELEASED,
+ event->x,
+ event->y,
+ event->button,
+ event->state,
+ (GdkEvent *)event);
+ }
+
+ if (clicked_emit_child != NULL)
+ {
+
+ image_table_emit_signal (image_table,
+ clicked_emit_child,
+ CHILD_CLICKED,
+ event->x,
+ event->y,
+ event->button,
+ event->state,
+ (GdkEvent *)event);
+ }
+
+ return FALSE;
+}
+
+/**
+ * eel_image_table_new:
+ */
+GtkWidget*
+eel_image_table_new (gboolean homogeneous)
+{
+ EelImageTable *image_table;
+
+ image_table = EEL_IMAGE_TABLE (gtk_widget_new (eel_image_table_get_type (), NULL));
+
+ eel_wrap_table_set_homogeneous (EEL_WRAP_TABLE (image_table), homogeneous);
+
+ return GTK_WIDGET (image_table);
+}
+
+/**
+ * eel_image_table_add_empty_child:
+ * @image_table: A EelImageTable.
+ *
+ * Add a "empty" child to the table. Useful when you want to have
+ * empty space between 2 children.
+ *
+ * Returns: The empty child - A EelLabeledImage widget with no label
+ * or pixbuf.
+ */
+GtkWidget *
+eel_image_table_add_empty_image (EelImageTable *image_table)
+{
+ GtkWidget *empty;
+
+ g_return_val_if_fail (EEL_IS_IMAGE_TABLE (image_table), NULL);
+
+ empty = eel_labeled_image_new (NULL, NULL);
+ gtk_container_add (GTK_CONTAINER (image_table), empty);
+ gtk_widget_set_sensitive (empty, FALSE);
+
+ return empty;
+}
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