Remove the dependency on LdCanvas.library-toolbar-rewrite

GDK grabbing doesn't work on Windows, though.

3 files changed, 86 insertions, 155 deletions

diff --git a/liblogdiag/ld-library-toolbar.c b/liblogdiag/ld-library-toolbar.c
index 295589e..8acb898 100644
--- a/liblogdiag/ld-library-toolbar.c
+++ b/liblogdiag/ld-library-toolbar.c
@@ -56,30 +56,18 @@ struct _SymbolMenuData
 
 	gint menu_width;
 	gint menu_height;
-	gint menu_y;
-};
-
-enum
-{
-	VIEW_HANDLER_EXPOSE,
-	VIEW_HANDLER_MOTION_NOTIFY,
-	VIEW_HANDLER_BUTTON_PRESS,
-	VIEW_HANDLER_BUTTON_RELEASE,
-	VIEW_HANDLER_COUNT
 };
 
 /*
  * LdLibraryToolbarPrivate:
  * @library: a library object assigned as a model.
- * @view: a view widget for showing symbol menus.
- * @view_handlers: signal handlers that hook the view.
+ * @popup_window: a popup window.
  * @symbol_menu: data related to menus.
  */
 struct _LdLibraryToolbarPrivate
 {
 	LdLibrary *library;
-	LdDiagramView *view;
-	gulong view_handlers[VIEW_HANDLER_COUNT];
+	GtkWidget *popup_window;
 	SymbolMenuData symbol_menu;
 };
 
@@ -87,7 +75,6 @@ enum
 {
 	PROP_0,
 	PROP_LIBRARY,
-	PROP_VIEW
 };
 
 static void ld_library_toolbar_get_property (GObject *object, guint property_id,
@@ -95,6 +82,7 @@ static void ld_library_toolbar_get_property (GObject *object, guint property_id,
 static void ld_library_toolbar_set_property (GObject *object, guint property_id,
 	const GValue *value, GParamSpec *pspec);
 static void ld_library_toolbar_dispose (GObject *gobject);
+static void ld_library_toolbar_finalize (GObject *gobject);
 
 static void reload_library (LdLibraryToolbar *self);
 static void load_category_cb (gpointer data, gpointer user_data);
@@ -106,16 +94,13 @@ static void emit_symbol_signal (LdLibraryToolbar *self,
 static void on_category_toggle (GtkToggleButton *toggle_button,
 	gpointer user_data);
 
-static inline void block_view_handlers (LdLibraryToolbar *self);
-static inline void unblock_view_handlers (LdLibraryToolbar *self);
-static inline void disconnect_view_handlers (LdLibraryToolbar *self);
-static gboolean on_view_exposed (GtkWidget *widget,
+static gboolean on_popup_exposed (GtkWidget *widget,
 	GdkEventExpose *event, gpointer user_data);
-static gboolean on_view_motion_notify (GtkWidget *widget,
+static gboolean on_popup_motion_notify (GtkWidget *widget,
 	GdkEventMotion *event, gpointer user_data);
-static gboolean on_view_button_press (GtkWidget *widget,
+static gboolean on_popup_button_press (GtkWidget *widget,
 	GdkEventButton *event, gpointer user_data);
-static gboolean on_view_button_release (GtkWidget *widget,
+static gboolean on_popup_button_release (GtkWidget *widget,
 	GdkEventButton *event, gpointer user_data);
 
 
@@ -134,6 +119,7 @@ ld_library_toolbar_class_init (LdLibraryToolbarClass *klass)
 	object_class->get_property = ld_library_toolbar_get_property;
 	object_class->set_property = ld_library_toolbar_set_property;
 	object_class->dispose = ld_library_toolbar_dispose;
+	object_class->finalize = ld_library_toolbar_finalize;
 
 /**
  * LdLibraryToolbar:library:
@@ -146,16 +132,6 @@ ld_library_toolbar_class_init (LdLibraryToolbarClass *klass)
 	g_object_class_install_property (object_class, PROP_LIBRARY, pspec);
 
 /**
- * LdLibraryToolbar:view:
- *
- * The #LdDiagramView widget misused for showing symbol menus.
- */
-	pspec = g_param_spec_object ("view", "View",
-		"The view widget misused for showing symbol menus.",
-		LD_TYPE_DIAGRAM_VIEW, G_PARAM_READWRITE);
-	g_object_class_install_property (object_class, PROP_VIEW, pspec);
-
-/**
  * LdLibraryToolbar::symbol-chosen:
  * @self: an #LdLibraryToolbar object.
  * @symbol: the chosen #LdSymbol object.
@@ -208,6 +184,18 @@ ld_library_toolbar_init (LdLibraryToolbar *self)
 {
 	self->priv = G_TYPE_INSTANCE_GET_PRIVATE
 		(self, LD_TYPE_LIBRARY_TOOLBAR, LdLibraryToolbarPrivate);
+
+	self->priv->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
+	gtk_window_set_resizable (GTK_WINDOW (self->priv->popup_window), FALSE);
+
+	g_signal_connect (self->priv->popup_window, "expose-event",
+			G_CALLBACK (on_popup_exposed), self);
+	g_signal_connect (self->priv->popup_window, "motion-notify-event",
+			G_CALLBACK (on_popup_motion_notify), self);
+	g_signal_connect (self->priv->popup_window, "button-press-event",
+			G_CALLBACK (on_popup_button_press), self);
+	g_signal_connect (self->priv->popup_window, "button-release-event",
+			G_CALLBACK (on_popup_button_release), self);
 }
 
 static void
@@ -216,15 +204,25 @@ ld_library_toolbar_dispose (GObject *gobject)
 	LdLibraryToolbar *self;
 
 	self = LD_LIBRARY_TOOLBAR (gobject);
-
 	ld_library_toolbar_set_library (self, NULL);
-	ld_library_toolbar_set_view (self, NULL);
 
 	/* Chain up to the parent class. */
 	G_OBJECT_CLASS (ld_library_toolbar_parent_class)->dispose (gobject);
 }
 
 static void
+ld_library_toolbar_finalize (GObject *gobject)
+{
+	LdLibraryToolbar *self;
+
+	self = LD_LIBRARY_TOOLBAR (gobject);
+	gtk_widget_destroy (self->priv->popup_window);
+
+	/* Chain up to the parent class. */
+	G_OBJECT_CLASS (ld_library_toolbar_parent_class)->finalize (gobject);
+}
+
+static void
 ld_library_toolbar_get_property (GObject *object, guint property_id,
 	GValue *value, GParamSpec *pspec)
 {
@@ -236,9 +234,6 @@ ld_library_toolbar_get_property (GObject *object, guint property_id,
 	case PROP_LIBRARY:
 		g_value_set_object (value, ld_library_toolbar_get_library (self));
 		break;
-	case PROP_VIEW:
-		g_value_set_object (value, ld_library_toolbar_get_view (self));
-		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 	}
@@ -257,10 +252,6 @@ ld_library_toolbar_set_property (GObject *object, guint property_id,
 		ld_library_toolbar_set_library (self,
 			LD_LIBRARY (g_value_get_object (value)));
 		break;
-	case PROP_VIEW:
-		ld_library_toolbar_set_view (self,
-			LD_DIAGRAM_VIEW (g_value_get_object (value)));
-		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 	}
@@ -325,62 +316,6 @@ ld_library_toolbar_get_library (LdLibraryToolbar *self)
 	return self->priv->library;
 }
 
-/**
- * ld_library_toolbar_set_view:
- * @self: an #LdLibraryToolbar object.
- * @view: (allow-none): the widget to be assigned to the toolbar.
- *
- * Assign an #LdDiagramView widget to the toolbar.
- */
-void
-ld_library_toolbar_set_view (LdLibraryToolbar *self, LdDiagramView *view)
-{
-	g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (self));
-	g_return_if_fail (LD_IS_DIAGRAM_VIEW (view) || view == NULL);
-
-	if (self->priv->view)
-	{
-		disconnect_view_handlers (self);
-		g_object_unref (self->priv->view);
-	}
-
-	self->priv->view = view;
-
-	if (view)
-	{
-		self->priv->view_handlers[VIEW_HANDLER_EXPOSE]
-			= g_signal_connect (view, "expose-event",
-			G_CALLBACK (on_view_exposed), self);
-		self->priv->view_handlers[VIEW_HANDLER_MOTION_NOTIFY]
-			= g_signal_connect (view, "motion-notify-event",
-			G_CALLBACK (on_view_motion_notify), self);
-		self->priv->view_handlers[VIEW_HANDLER_BUTTON_PRESS]
-			= g_signal_connect (view, "button-press-event",
-			G_CALLBACK (on_view_button_press), self);
-		self->priv->view_handlers[VIEW_HANDLER_BUTTON_RELEASE]
-			= g_signal_connect (view, "button-release-event",
-			G_CALLBACK (on_view_button_release), self);
-
-		block_view_handlers (self);
-		g_object_ref (view);
-	}
-	g_object_notify (G_OBJECT (self), "view");
-}
-
-/**
- * ld_library_toolbar_get_view:
- * @self: an #LdLibraryToolbar object.
- *
- * Return value: (transfer none): the #LdDiagramView widget
- *               assigned to the toolbar.
- */
-LdDiagramView *
-ld_library_toolbar_get_view (LdLibraryToolbar *self)
-{
-	g_return_val_if_fail (LD_IS_LIBRARY_TOOLBAR (self), NULL);
-	return self->priv->view;
-}
-
 static void
 reload_library (LdLibraryToolbar *self)
 {
@@ -439,7 +374,7 @@ load_category_cb (gpointer data, gpointer user_data)
 	gtk_container_add (GTK_CONTAINER (button), img);
 	gtk_container_add (GTK_CONTAINER (item), button);
 
-	/* Don't steal focus from the view. */
+	/* Don't steal focus. */
 	g_object_set (button, "can-focus", FALSE, NULL);
 
 	/* Assign the category to the toggle button. */
@@ -493,13 +428,9 @@ recolor_pixbuf (GdkPixbuf *pbuf, GdkColor *color)
 static void
 redraw_symbol_menu (LdLibraryToolbar *self)
 {
-	SymbolMenuData *data;
-
 	g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (self));
-	data = &self->priv->symbol_menu;
 
-	gtk_widget_queue_draw_area (GTK_WIDGET (self->priv->view),
-		0, data->menu_y - 1, data->menu_width + 2, data->menu_height + 2);
+	gtk_widget_queue_draw (GTK_WIDGET (self->priv->popup_window));
 }
 
 static void
@@ -541,7 +472,7 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
 	{
 		gint i;
 
-		block_view_handlers (self);
+		gtk_widget_hide (self->priv->popup_window);
 
 		g_object_unref (data->active_button);
 		data->active_button = NULL;
@@ -559,7 +490,10 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
 		g_free (data->items);
 		data->items = NULL;
 
-		gtk_grab_remove (GTK_WIDGET (self->priv->view));
+		gdk_pointer_ungrab (GDK_CURRENT_TIME);
+		gdk_keyboard_ungrab (GDK_CURRENT_TIME);
+
+		gtk_grab_remove (GTK_WIDGET (self->priv->popup_window));
 	}
 	else
 	{
@@ -567,14 +501,6 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
 		SymbolMenuItem *item;
 		gint x, y, menu_width;
 
-		g_return_if_fail (gtk_widget_translate_coordinates (GTK_WIDGET
-			(toggle_button), GTK_WIDGET (priv->view), 0, 0, &x, &y));
-
-		data->menu_y = y;
-		data->menu_height = GTK_WIDGET (toggle_button)->allocation.height;
-
-		unblock_view_handlers (self);
-
 		data->active_button = toggle_button;
 		g_object_ref (data->active_button);
 
@@ -585,8 +511,10 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
 		data->items = g_new (SymbolMenuItem, data->n_items);
 		data->active_item = -1;
 
-		item = data->items;
 		menu_width = 0;
+		data->menu_height = GTK_WIDGET (toggle_button)->allocation.height;
+
+		item = data->items;
 		for (symbol_iter = children; symbol_iter;
 			symbol_iter = symbol_iter->next)
 		{
@@ -616,28 +544,36 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
 		}
 		data->menu_width = menu_width;
 
-		gtk_grab_add (GTK_WIDGET (self->priv->view));
+		if (!gtk_widget_get_has_window (GTK_WIDGET (toggle_button)))
+		{
+			x = GTK_WIDGET (toggle_button)->allocation.x;
+			y = GTK_WIDGET (toggle_button)->allocation.y;
+		}
+		else
+			x = y = 0;
+
+		gdk_window_get_root_coords
+			(GTK_WIDGET (toggle_button)->window, x, y, &x, &y);
+
+		gtk_widget_show (self->priv->popup_window);
+		gtk_widget_set_size_request (self->priv->popup_window,
+			data->menu_width, data->menu_height);
+		gtk_window_move (GTK_WINDOW (self->priv->popup_window),
+			x + GTK_WIDGET (toggle_button)->allocation.width, y);
+
+		gdk_pointer_grab (self->priv->popup_window->window, TRUE,
+			GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
+			| GDK_POINTER_MOTION_MASK, NULL, NULL, GDK_CURRENT_TIME);
+		gdk_keyboard_grab (self->priv->popup_window->window,
+			TRUE, GDK_CURRENT_TIME);
+
+		gtk_grab_add (GTK_WIDGET (self->priv->popup_window));
 	}
 	redraw_symbol_menu (self);
 }
 
-#define DEFINE_VIEW_HANDLER_FUNC(name) \
-static inline void \
-name ## _view_handlers (LdLibraryToolbar *self) \
-{ \
-	gint i; \
-	g_return_if_fail (LD_IS_DIAGRAM_VIEW (self->priv->view)); \
-	for (i = 0; i < VIEW_HANDLER_COUNT; i++) \
-		g_signal_handler_ ## name (self->priv->view, \
-			self->priv->view_handlers[i]); \
-}
-
-DEFINE_VIEW_HANDLER_FUNC (block)
-DEFINE_VIEW_HANDLER_FUNC (unblock)
-DEFINE_VIEW_HANDLER_FUNC (disconnect)
-
 static gboolean
-on_view_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
+on_popup_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 {
 	cairo_t *cr;
 	LdLibraryToolbar *self;
@@ -651,7 +587,7 @@ on_view_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 	/* Draw some border. */
 	cairo_set_line_width (cr, 1);
 
-	cairo_rectangle (cr, 0, data->menu_y, data->menu_width, data->menu_height);
+	cairo_rectangle (cr, 0, 0, data->menu_width, data->menu_height);
 	cairo_set_source_rgb (cr, 1, 1, 1);
 	cairo_fill (cr);
 
@@ -662,8 +598,8 @@ on_view_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 
 		if (i)
 		{
-			cairo_move_to (cr, x - 0.5, data->menu_y + 1);
-			cairo_line_to (cr, x - 0.5, data->menu_y + data->menu_height);
+			cairo_move_to (cr, x - 0.5, 1);
+			cairo_line_to (cr, x - 0.5, data->menu_height);
 			cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
 			cairo_stroke (cr);
 		}
@@ -671,7 +607,7 @@ on_view_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 		item = data->items + i;
 		cairo_save (cr);
 
-		cairo_rectangle (cr, x, data->menu_y, item->width, data->menu_height);
+		cairo_rectangle (cr, x, 0, item->width, data->menu_height);
 		cairo_clip (cr);
 
 		if (i == data->active_item)
@@ -680,8 +616,7 @@ on_view_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 			cairo_paint (cr);
 		}
 
-		cairo_translate (cr, x + item->dx,
-			data->menu_y + data->menu_height * 0.5);
+		cairo_translate (cr, x + item->dx, data->menu_height * 0.5);
 		cairo_scale (cr, item->scale, item->scale);
 
 		cairo_set_source_rgb (cr, 0, 0, 0);
@@ -692,17 +627,16 @@ on_view_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 		x += item->width;
 	}
 
-	cairo_rectangle (cr, 0.5, data->menu_y + 0.5,
-		data->menu_width, data->menu_height);
+	cairo_rectangle (cr, 0.5, 0.5, data->menu_width - 1, data->menu_height - 1);
 	cairo_set_source_rgb (cr, 0, 0, 0);
 	cairo_stroke (cr);
 
 	cairo_destroy (cr);
-	return FALSE;
+	return TRUE;
 }
 
 static gboolean
-on_view_motion_notify (GtkWidget *widget, GdkEventMotion *event,
+on_popup_motion_notify (GtkWidget *widget, GdkEventMotion *event,
 	gpointer user_data)
 {
 	LdLibraryToolbar *self;
@@ -713,9 +647,8 @@ on_view_motion_notify (GtkWidget *widget, GdkEventMotion *event,
 	data = &self->priv->symbol_menu;
 
 	if (widget->window != event->window
-		|| event->x < 0 || event->y < data->menu_y
-		|| event->y >= data->menu_y + data->menu_height)
-		goto on_view_motion_notify_end;
+		|| event->x < 0 || event->y < 0 || event->y >= data->menu_height)
+		goto on_popup_motion_notify_end;
 
 	for (x = i = 0; i < data->n_items; i++)
 	{
@@ -727,7 +660,7 @@ on_view_motion_notify (GtkWidget *widget, GdkEventMotion *event,
 		}
 	}
 
-on_view_motion_notify_end:
+on_popup_motion_notify_end:
 	if (data->active_item != at_cursor)
 	{
 		emit_symbol_signal (self, LD_LIBRARY_TOOLBAR_GET_CLASS (self)
@@ -739,11 +672,11 @@ on_view_motion_notify_end:
 	}
 	data->active_item = at_cursor;
 	redraw_symbol_menu (self);
-	return FALSE;
+	return TRUE;
 }
 
 static gboolean
-on_view_button_press (GtkWidget *widget, GdkEventButton *event,
+on_popup_button_press (GtkWidget *widget, GdkEventButton *event,
 	gpointer user_data)
 {
 	LdLibraryToolbar *self;
@@ -753,18 +686,18 @@ on_view_button_press (GtkWidget *widget, GdkEventButton *event,
 	data = &self->priv->symbol_menu;
 
 	/* If the event occured elsewhere, cancel the menu and put the event
-	 * back into the queue.
+	 * back into the queue. This is for quicker switching between categories.
 	 */
 	if (widget->window != event->window && data->active_button)
 	{
 		gtk_toggle_button_set_active (data->active_button, FALSE);
 		gdk_event_put ((GdkEvent *) event);
 	}
-	return FALSE;
+	return TRUE;
 }
 
 static gboolean
-on_view_button_release (GtkWidget *widget, GdkEventButton *event,
+on_popup_button_release (GtkWidget *widget, GdkEventButton *event,
 	gpointer user_data)
 {
 	LdLibraryToolbar *self;
@@ -774,7 +707,7 @@ on_view_button_release (GtkWidget *widget, GdkEventButton *event,
 	data = &self->priv->symbol_menu;
 
 	if (event->button != 1)
-		return FALSE;
+		return TRUE;
 
 	emit_symbol_signal (self, LD_LIBRARY_TOOLBAR_GET_CLASS (self)
 		->symbol_chosen_signal, -1);
@@ -783,5 +716,5 @@ on_view_button_release (GtkWidget *widget, GdkEventButton *event,
 	if (data->active_button)
 		gtk_toggle_button_set_active (data->active_button, FALSE);
 
-	return FALSE;
+	return TRUE;
 }
diff --git a/liblogdiag/ld-library-toolbar.h b/liblogdiag/ld-library-toolbar.h
index b1dc77a..01b329d 100644
--- a/liblogdiag/ld-library-toolbar.h
+++ b/liblogdiag/ld-library-toolbar.h
@@ -59,9 +59,6 @@ GtkWidget *ld_library_toolbar_new (void);
 void ld_library_toolbar_set_library (LdLibraryToolbar *self,
 	LdLibrary *library);
 LdLibrary *ld_library_toolbar_get_library (LdLibraryToolbar *self);
-void ld_library_toolbar_set_view (LdLibraryToolbar *self,
-	LdDiagramView *view);
-LdDiagramView *ld_library_toolbar_get_view (LdLibraryToolbar *self);
 
 
 G_END_DECLS
diff --git a/liblogdiag/liblogdiag.h b/liblogdiag/liblogdiag.h
index 2ec48bc..d045d02 100644
--- a/liblogdiag/liblogdiag.h
+++ b/liblogdiag/liblogdiag.h
@@ -20,6 +20,7 @@
 #include "ld-symbol.h"
 #include "ld-symbol-category.h"
 #include "ld-library.h"
+#include "ld-library-toolbar.h"
 
 #include "ld-undo-action.h"
 #include "ld-diagram-object.h"