1 files changed, 324 insertions, 0 deletions
diff --git a/src/widgets/button.cpp b/src/widgets/button.cpp
new file mode 100644
index 000000000..4860c9667
--- /dev/null
+++ b/src/widgets/button.cpp
@@ -0,0 +1,324 @@
+#define __SP_BUTTON_C__
+
+/*
+ * Generic button widget
+ *
+ * Authors:
+ *   MenTaLguY <mental@rydia.net>
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *   bulia byak <buliabyak@users.sf.net>
+ *
+ * Copyright (C) 2002 Lauris Kaplinski
+ *
+ * This code is in public domain
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+
+#if HAVE_STRING_H
+#endif
+
+
+
+
+#include "shortcuts.h"
+#include "interface.h"
+
+#include "icon.h"
+#include "button.h"
+
+static void sp_button_class_init (SPButtonClass *klass);
+static void sp_button_init (SPButton *button);
+static void sp_button_destroy (GtkObject *object);
+
+static void sp_button_size_request (GtkWidget *widget, GtkRequisition *requisition);
+static void sp_button_clicked (GtkButton *button);
+static void sp_button_perform_action (SPButton *button, gpointer data);
+static gint sp_button_process_event (SPButton *button, GdkEvent *event);
+
+static void sp_button_set_action (SPButton *button, SPAction *action);
+static void sp_button_set_doubleclick_action (SPButton *button, SPAction *action);
+static void sp_button_action_set_active (SPAction *action, unsigned int active, void *data);
+static void sp_button_action_set_sensitive (SPAction *action, unsigned int sensitive, void *data);
+static void sp_button_action_set_shortcut (SPAction *action, unsigned int shortcut, void *data);
+static void sp_button_set_composed_tooltip (GtkTooltips *tooltips, GtkWidget *widget, SPAction *action);
+
+static GtkToggleButtonClass *parent_class;
+SPActionEventVector button_event_vector = {
+	{NULL},
+	 NULL,
+	 sp_button_action_set_active,
+	 sp_button_action_set_sensitive,
+	 sp_button_action_set_shortcut
+};
+
+GtkType
+sp_button_get_type (void)
+{
+	static GtkType type = 0;
+	if (!type) {
+		GtkTypeInfo info = {
+			"SPButton",
+			sizeof (SPButton),
+			sizeof (SPButtonClass),
+			(GtkClassInitFunc) sp_button_class_init,
+			(GtkObjectInitFunc) sp_button_init,
+			NULL, NULL, NULL
+		};
+		type = gtk_type_unique (GTK_TYPE_TOGGLE_BUTTON, &info);
+	}
+	return type;
+}
+
+static void
+sp_button_class_init (SPButtonClass *klass)
+{
+	GtkObjectClass *object_class=(GtkObjectClass *)klass;
+	GtkWidgetClass *widget_class=(GtkWidgetClass *)klass;
+	GtkButtonClass *button_class=(GtkButtonClass *)klass;
+
+	parent_class = (GtkToggleButtonClass *)g_type_class_peek_parent (klass);
+
+	object_class->destroy = sp_button_destroy;
+	widget_class->size_request = sp_button_size_request;
+	button_class->clicked = sp_button_clicked;
+}
+
+static void
+sp_button_init (SPButton *button)
+{
+	button->action = NULL;
+	button->doubleclick_action = NULL;
+	button->tooltips = NULL;
+
+	gtk_container_set_border_width (GTK_CONTAINER (button), 0);
+
+	GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (button), GTK_CAN_FOCUS);
+	GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (button), GTK_CAN_DEFAULT);
+
+	g_signal_connect_after (G_OBJECT (button), "clicked", G_CALLBACK (sp_button_perform_action), NULL);
+	g_signal_connect_after (G_OBJECT (button), "event", G_CALLBACK (sp_button_process_event), NULL);
+}
+
+static void
+sp_button_destroy (GtkObject *object)
+{
+	SPButton *button;
+
+	button = SP_BUTTON (object);
+
+	if (button->tooltips) {
+		g_object_unref (G_OBJECT (button->tooltips));
+		button->tooltips = NULL;
+	}
+
+	if (button->action) {
+		sp_button_set_action (button, NULL);
+	}
+
+	if (button->doubleclick_action) {
+		sp_button_set_doubleclick_action (button, NULL);
+	}
+
+	((GtkObjectClass *) (parent_class))->destroy (object);
+}
+
+static void
+sp_button_size_request (GtkWidget *widget, GtkRequisition *requisition)
+{
+	GtkWidget *child;
+
+	child = gtk_bin_get_child (GTK_BIN (widget));
+	if (child) {
+		gtk_widget_size_request (GTK_WIDGET (child), requisition);
+	} else {
+		requisition->width = 0;
+		requisition->height = 0;
+	}
+
+	requisition->width += 2 + 2 * MAX (2, widget->style->xthickness);
+	requisition->height += 2 + 2 * MAX (2, widget->style->ythickness);
+}
+
+static void
+sp_button_clicked (GtkButton *button)
+{
+	SPButton *sp_button=SP_BUTTON (button);
+
+	if (sp_button->type == SP_BUTTON_TYPE_TOGGLE) {
+		((GtkButtonClass *) (parent_class))->clicked (button);
+	}
+}
+
+static gint 
+sp_button_process_event (SPButton *button, GdkEvent *event)
+{
+	switch (event->type) {
+	case GDK_2BUTTON_PRESS:
+		if (button->doubleclick_action) {
+			sp_action_perform (button->doubleclick_action, NULL);
+		}
+		return TRUE;
+		break;
+	default:
+		break;
+	}
+
+	return FALSE;
+}
+
+static void
+sp_button_perform_action (SPButton *button, gpointer data)
+{
+	if (button->action) {
+		sp_action_perform (button->action, NULL);
+	}
+}
+
+
+GtkWidget *
+sp_button_new( GtkIconSize size, SPButtonType type, SPAction *action, SPAction *doubleclick_action, GtkTooltips *tooltips )
+{
+	SPButton *button;
+
+	button = (SPButton *)g_object_new (SP_TYPE_BUTTON, NULL);
+
+	button->type = type;
+	button->lsize = CLAMP( size, GTK_ICON_SIZE_MENU, GTK_ICON_SIZE_DIALOG );
+	button->tooltips = tooltips;
+
+	if (tooltips) g_object_ref ((GObject *) tooltips);
+
+	sp_button_set_action (button, action);
+	if (doubleclick_action)
+		sp_button_set_doubleclick_action (button, doubleclick_action);
+
+	// The Inkscape style is no-relief buttons
+	gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
+
+	return (GtkWidget *) button;
+}
+
+void
+sp_button_toggle_set_down (SPButton *button, gboolean down)
+{
+	g_return_if_fail (button->type == SP_BUTTON_TYPE_TOGGLE);
+	g_signal_handlers_block_by_func (G_OBJECT (button), (gpointer)G_CALLBACK (sp_button_perform_action), NULL);
+	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), (unsigned int)down);
+	g_signal_handlers_unblock_by_func (G_OBJECT (button), (gpointer)G_CALLBACK (sp_button_perform_action), NULL);
+}
+
+static void
+sp_button_set_doubleclick_action (SPButton *button, SPAction *action)
+{
+	if (button->doubleclick_action) {
+		nr_object_unref ((NRObject *) button->doubleclick_action);
+	}
+	button->doubleclick_action = action;
+	if (action) {
+		button->doubleclick_action = (SPAction *) nr_object_ref ((NRObject *) action);
+	}
+}
+
+static void
+sp_button_set_action (SPButton *button, SPAction *action)
+{
+	GtkWidget *child;
+
+	if (button->action) {
+		nr_active_object_remove_listener_by_data ((NRActiveObject *) button->action, button);
+		nr_object_unref ((NRObject *) button->action);
+		child = gtk_bin_get_child (GTK_BIN (button));
+		if (child) {
+			gtk_container_remove (GTK_CONTAINER (button), child);
+		}
+	}
+	button->action = action;
+	if (action) {
+		button->action = (SPAction *) nr_object_ref ((NRObject *) action);
+		nr_active_object_add_listener ((NRActiveObject *) action, (NRObjectEventVector *) &button_event_vector, sizeof (SPActionEventVector), button);
+		if (action->image) {
+			child = sp_icon_new (button->lsize, action->image);
+			gtk_widget_show (child);
+			gtk_container_add (GTK_CONTAINER (button), child);
+		}
+	}
+
+	if (button->tooltips) {
+		sp_button_set_composed_tooltip (button->tooltips, (GtkWidget *) button, action);
+	}
+}
+
+static void
+sp_button_action_set_active (SPAction *action, unsigned int active, void *data)
+{
+	SPButton *button;
+	button = (SPButton *) data;
+	if (button->type != SP_BUTTON_TYPE_TOGGLE) {
+		return;
+	}
+
+	/* temporarily lobotomized until SPActions are per-view */
+	if (0 && !active != !SP_BUTTON_IS_DOWN (button)) {
+		sp_button_toggle_set_down (button, active);
+	}
+}
+
+static void
+sp_button_action_set_sensitive (SPAction *action, unsigned int sensitive, void *data)
+{
+	gtk_widget_set_sensitive (GTK_WIDGET (data), sensitive);
+}
+
+static void
+sp_button_action_set_shortcut (SPAction *action, unsigned int shortcut, void *data)
+{
+	SPButton *button=SP_BUTTON (data);
+	if (button->tooltips) {
+		sp_button_set_composed_tooltip (button->tooltips, GTK_WIDGET (button), action);
+	}
+}
+
+static void
+sp_button_set_composed_tooltip (GtkTooltips *tooltips, GtkWidget *widget, SPAction *action)
+{
+	if (action) {
+		unsigned int shortcut = sp_shortcut_get_primary (action->verb);
+		if (shortcut) {
+			// there's both action and shortcut
+
+			gchar        key[256];
+			sp_ui_shortcut_string (shortcut, key);
+
+			gchar *tip = g_strdup_printf ("%s (%s)", action->tip, key);
+			gtk_tooltips_set_tip (tooltips, widget, tip, NULL);
+			g_free (tip);
+
+		} else {
+			// action has no shortcut
+			gtk_tooltips_set_tip (tooltips, widget, action->tip, NULL);
+		}
+	} else {
+		// no action
+		gtk_tooltips_set_tip (tooltips, widget, NULL, NULL);
+	}
+}
+
+GtkWidget *
+sp_button_new_from_data( GtkIconSize size,
+			 SPButtonType type,
+			 Inkscape::UI::View::View *view,
+			 const gchar *name,
+			 const gchar *tip,
+			 GtkTooltips *tooltips )
+{
+	GtkWidget *button;
+	SPAction *action=sp_action_new(view, name, name, tip, name, 0);
+	button = sp_button_new (size, type, action, NULL, tooltips);
+	nr_object_unref ((NRObject *) action);
+	return button;
+}
+