LdWindowMain cleanup.
* Restructure the initialization code. * Move LdCanvas event mask setting to ld-canvas.c. * Remove some redundant code. * Use consistent naming. * Update comments. Practically no functional change.
This commit is contained in:
		@@ -24,7 +24,7 @@
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			<menuitem action="About" />
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		</menu>
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	</menubar>
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	<toolbar action="MainToolbar">
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	<toolbar action="Toolbar">
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		<toolitem action="New" />
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		<toolitem action="Open" />
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		<toolitem action="Save" />
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@@ -177,6 +177,10 @@ ld_canvas_init (LdCanvas *self)
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		G_CALLBACK (on_expose_event), NULL);
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	g_signal_connect (self, "size-allocate",
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		G_CALLBACK (on_size_allocate), NULL);
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	gtk_widget_add_events (GTK_WIDGET (self),
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		GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK
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		| GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
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}
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static void
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@@ -38,7 +38,6 @@
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typedef struct _SymbolMenuItem SymbolMenuItem;
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typedef struct _SymbolMenuData SymbolMenuData;
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typedef struct _DocumentData DocumentData;
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/*
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 * SymbolMenuItem:
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@@ -75,18 +74,6 @@ struct _SymbolMenuData
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	gint menu_y;
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};
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/*
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 * DocumentData:
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 *
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 * Data related to the current document.
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 */
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struct _DocumentData
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{
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	LdDocument *document;
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	const gchar *file_name;
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	/* Canvas viewport settings (for multitabbed) */
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};
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struct _LdWindowMainPrivate
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{
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	GtkUIManager *ui_manager;
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@@ -139,13 +126,13 @@ static void on_ui_proxy_disconnected (GtkUIManager *ui, GtkAction *action,
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static void on_menu_item_selected (GtkWidget *item, LdWindowMain *window);
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static void on_menu_item_deselected (GtkItem *item, LdWindowMain *window);
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static void show_about_dialog (GtkAction *action, LdWindowMain *window);
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static void on_action_about (GtkAction *action, LdWindowMain *self);
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/* ===== Local variables =================================================== */
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/* Actions for menus, toolbars, accelerators. */
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static GtkActionEntry mw_actionEntries[] =
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static GtkActionEntry wm_action_entries[] =
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{
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	{"FileMenu", NULL, Q_("_File")},
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		{"New", GTK_STOCK_NEW, NULL, NULL,
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@@ -163,7 +150,8 @@ static GtkActionEntry mw_actionEntries[] =
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			G_CALLBACK (gtk_main_quit)},
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	{"EditMenu", NULL, Q_("_Edit")},
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/* These are not probably going to show up in the 1st version of this app:
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		/* XXX: Don't implement these yet: */
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/*
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		{"Cut", GTK_STOCK_CUT, NULL, NULL, NULL, NULL},
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		{"Copy", GTK_STOCK_COPY, NULL, NULL, NULL, NULL},
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		{"Paste", GTK_STOCK_PASTE, NULL, NULL, NULL, NULL},
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@@ -173,10 +161,12 @@ static GtkActionEntry mw_actionEntries[] =
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		{"SelectAll", GTK_STOCK_SELECT_ALL, NULL, NULL,
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			Q_("Select all objects in the document"), NULL},
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	/* TODO: View menu (zooming). */
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	{"HelpMenu", NULL, Q_("_Help")},
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		{"About", GTK_STOCK_ABOUT, NULL, NULL,
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			Q_("Show a dialog about this application"),
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			G_CALLBACK (show_about_dialog)}
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			G_CALLBACK (on_action_about)}
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};
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@@ -216,10 +206,7 @@ ld_window_main_init (LdWindowMain *self)
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	self->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE
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		(self, LD_TYPE_WINDOW_MAIN, LdWindowMainPrivate);
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	priv->vbox = gtk_vbox_new (FALSE, 0);
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	gtk_container_add (GTK_CONTAINER (self), priv->vbox);
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	/* Construct menu and toolbar. */
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	priv->ui_manager = gtk_ui_manager_new ();
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	g_signal_connect (priv->ui_manager, "connect-proxy",
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@@ -227,10 +214,9 @@ ld_window_main_init (LdWindowMain *self)
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	g_signal_connect (priv->ui_manager, "disconnect-proxy",
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		G_CALLBACK (on_ui_proxy_disconnected), self);
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	/* Prepare our actions. */
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	action_group = gtk_action_group_new ("MainActions");
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	gtk_action_group_add_actions (action_group,
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		mw_actionEntries, G_N_ELEMENTS (mw_actionEntries), self);
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	gtk_action_group_add_actions (action_group, wm_action_entries,
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		G_N_ELEMENTS (wm_action_entries), self);
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	gtk_ui_manager_insert_action_group (priv->ui_manager, action_group, 0);
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	error = NULL;
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@@ -242,45 +228,48 @@ ld_window_main_init (LdWindowMain *self)
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		g_error_free (error);
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	}
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	/* Load keyboard accelerators into the window. */
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	gtk_window_add_accel_group
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		(GTK_WINDOW (self), gtk_ui_manager_get_accel_group (priv->ui_manager));
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	priv->menu = gtk_ui_manager_get_widget (priv->ui_manager, "/MenuBar");
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	gtk_box_pack_start (GTK_BOX (priv->vbox), priv->menu, FALSE, FALSE, 0);
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	priv->toolbar = gtk_ui_manager_get_widget (priv->ui_manager, "/Toolbar");
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	/* Add the main toolbar. */
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	priv->toolbar = gtk_ui_manager_get_widget (priv->ui_manager,
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		"/MainToolbar");
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	gtk_box_pack_start (GTK_BOX (priv->vbox), priv->toolbar, FALSE, FALSE, 0);
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	priv->hbox = gtk_hbox_new(FALSE, 0);
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	gtk_box_pack_start (GTK_BOX (priv->vbox), priv->hbox, TRUE, TRUE, 0);
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	/* Add the library toolbar. */
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	/* Create the remaining widgets. */
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	priv->library_toolbar = gtk_toolbar_new ();
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	/* NOTE: For GTK 2.16+, s/toolbar/orientable/ */
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	gtk_toolbar_set_orientation
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		(GTK_TOOLBAR (priv->library_toolbar), GTK_ORIENTATION_VERTICAL);
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	gtk_toolbar_set_icon_size
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		(GTK_TOOLBAR (priv->library_toolbar), GTK_ICON_SIZE_LARGE_TOOLBAR);
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	gtk_toolbar_set_style
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		(GTK_TOOLBAR (priv->library_toolbar), GTK_TOOLBAR_ICONS);
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	/* XXX: For GTK 2.16+, s/toolbar/orientable/ */
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	gtk_toolbar_set_orientation (GTK_TOOLBAR (priv->library_toolbar),
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		GTK_ORIENTATION_VERTICAL);
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	priv->canvas = ld_canvas_new ();
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	priv->canvas_window = gtk_scrolled_window_new (NULL, NULL);
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	gtk_container_add (GTK_CONTAINER (priv->canvas_window),
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		GTK_WIDGET (priv->canvas));
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	priv->statusbar = gtk_statusbar_new ();
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	priv->statusbar_menu_context_id = gtk_statusbar_get_context_id
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		(GTK_STATUSBAR (priv->statusbar), "menu");
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	/* Pack all widgets into the window. */
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	priv->hbox = gtk_hbox_new (FALSE, 0);
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	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->library_toolbar,
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		FALSE, FALSE, 0);
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	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->canvas_window,
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		TRUE, TRUE, 0);
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	/* Symbol library. */
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	priv->library = ld_library_new ();
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	ld_library_load (priv->library, PROJECT_SHARE_DIR "library");
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	priv->vbox = gtk_vbox_new (FALSE, 0);
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	gtk_box_pack_start (GTK_BOX (priv->vbox), priv->menu, FALSE, FALSE, 0);
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	gtk_box_pack_start (GTK_BOX (priv->vbox), priv->toolbar, FALSE, FALSE, 0);
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	gtk_box_pack_start (GTK_BOX (priv->vbox), priv->hbox, TRUE, TRUE, 0);
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	gtk_box_pack_end (GTK_BOX (priv->vbox), priv->statusbar, FALSE, FALSE, 0);
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	load_library_toolbar (self);
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	gtk_container_add (GTK_CONTAINER (self), priv->vbox);
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	/* TODO in the future: GtkHPaned */
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	/* Configure the window. */
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	g_signal_connect (self, "destroy", G_CALLBACK (gtk_main_quit), NULL);
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	/* Canvas. */
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	priv->canvas = ld_canvas_new ();
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	gtk_window_add_accel_group (GTK_WINDOW (self),
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		gtk_ui_manager_get_accel_group (priv->ui_manager));
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	gtk_window_set_default_size (GTK_WINDOW (self), 500, 400);
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	gtk_window_set_position (GTK_WINDOW (self), GTK_WIN_POS_CENTER);
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	/* Hook canvas signals. */
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	/* XXX: To be able to draw a symbol menu over the canvas, we may:
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	 *   1. Hook the expose-event and button-{press,release}-event signals.
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	 *   2. Create a hook mechanism in the LdCanvas object.
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@@ -293,11 +282,8 @@ ld_window_main_init (LdWindowMain *self)
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		"motion-notify-event", G_CALLBACK (on_canvas_motion_notify), self);
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	priv->symbol_menu.button_release_handler = g_signal_connect (priv->canvas,
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		"button-release-event", G_CALLBACK (on_canvas_button_release), self);
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	gtk_widget_add_events (GTK_WIDGET (priv->canvas),
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		GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK
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		| GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK);
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	/* Don't render anything over the canvas yet. */
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	/* Don't process the signals yet. */
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	g_signal_handler_block (priv->canvas,
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		priv->symbol_menu.expose_handler);
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	g_signal_handler_block (priv->canvas,
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@@ -305,22 +291,17 @@ ld_window_main_init (LdWindowMain *self)
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	g_signal_handler_block (priv->canvas,
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		priv->symbol_menu.button_release_handler);
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	priv->canvas_window = gtk_scrolled_window_new (NULL, NULL);
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	gtk_container_add (GTK_CONTAINER (priv->canvas_window),
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		GTK_WIDGET (priv->canvas));
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	gtk_box_pack_start (GTK_BOX (priv->hbox), GTK_WIDGET (priv->canvas_window),
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		TRUE, TRUE, 0);
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	priv->statusbar = gtk_statusbar_new ();
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	priv->statusbar_menu_context_id = gtk_statusbar_get_context_id
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		(GTK_STATUSBAR (priv->statusbar), "menu");
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	gtk_box_pack_end (GTK_BOX (priv->vbox), priv->statusbar, FALSE, FALSE, 0);
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	/* Proceed to showing the window. */
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	g_signal_connect (self, "destroy", G_CALLBACK (gtk_main_quit), NULL);
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	/* Initialize the backend. */
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	priv->library = ld_library_new ();
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	ld_library_load (priv->library, PROJECT_SHARE_DIR "library");
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	gtk_window_set_default_size (GTK_WINDOW (self), 500, 400);
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	gtk_window_set_position (GTK_WINDOW (self), GTK_WIN_POS_CENTER);
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	ld_canvas_set_library (priv->canvas, priv->library);
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	load_library_toolbar (self);
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	/* Realize the window. */
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	gtk_widget_show_all (GTK_WIDGET (self));
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}
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@@ -417,7 +398,6 @@ load_category_cb (gpointer data, gpointer user_data)
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 *
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 * Make the area for symbol menu redraw itself.
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 */
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/* XXX: Ideally it should repaint just what's needed. */
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static void
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redraw_symbol_menu (LdWindowMain *self)
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{
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@@ -619,6 +599,7 @@ on_canvas_motion_notify (GtkWidget *widget, GdkEventMotion *event,
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		x += data->items[i].width;
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		if (event->x < x)
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		{
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			/* TODO: Show the human name of this symbol in status bar. */
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			data->active_item = i;
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			redraw_symbol_menu (self);
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			return FALSE;
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@@ -711,9 +692,9 @@ on_menu_item_deselected (GtkItem *item, LdWindowMain *window)
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}
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static void
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show_about_dialog (GtkAction *action, LdWindowMain *window)
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on_action_about (GtkAction *action, LdWindowMain *self)
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{
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	gtk_show_about_dialog (GTK_WINDOW (window),
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	gtk_show_about_dialog (GTK_WINDOW (self),
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		"program-name", PROJECT_NAME,
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		"version", PROJECT_VERSION,
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		"copyright", "Copyright Přemysl Janouch 2010",
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