make autoscroll a bit easier to use, fix missing measure lines when moving the editor pane, slight optimisation(?) of canvas-simplerect (seems to make a difference to me), fix dirty pixels when moving regions across tracks sometimes. some code cleanup.

git-svn-id: svn://localhost/ardour2/trunk@885 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/canvas-simplerect.c

@@ -263,7 +263,7 @@ gnome_canvas_simplerect_reset_bounds (GnomeCanvasItem *item)
 	GnomeCanvasSimpleRect* simplerect;
 	double x1, x2, y1, y2;
 	double old_x1, old_x2, old_y1, old_y2;
-	double a, b;
+	double a, b, c, d;
 	
 	old_x1 = item->x1;
 	old_y1 = item->y1;
@@ -288,41 +288,23 @@ gnome_canvas_simplerect_reset_bounds (GnomeCanvasItem *item)
 
 	/* now queue redraws for changed areas */
 		
-	if (item->x1 != old_x1) {
-		
-		/* left edge changed. redraw the area that altered */
-		
 		a = MIN(item->x1, old_x1); 
 		b = MAX(item->x1, old_x1);
-		gnome_canvas_request_redraw (item->canvas, a - 1, item->y1, b + 1, item->y2);
-	}
 
-	if (item->x2 != old_x2) {
+	        a = MIN(a, item->x2);
+		a = MIN(a, old_x2);
+		b = MAX(b, item->x2);
+		b = MAX(b, old_x2);
 
-		/* right edge changed. redraw the area that altered */
+		c = MIN(item->y1, old_y1);
+		d = MAX(item->y1, old_y1);
 
-		a = MIN(item->x2, old_x2);
+	        c = MIN(c,item->y2);
-		b = MAX(item->x2, old_x2);
+		c = MIN(c, old_y2);
-		gnome_canvas_request_redraw (item->canvas, a - 1, item->y1, b + 1, item->y2);
+		d = MAX(d,item->y2);
-	}
+		d = MAX(d, old_y2);
 
-	if (item->y1 != old_y1) {
+		gnome_canvas_request_redraw (item->canvas, a, c, b + 0.5, d + 0.5);
-		
-		/* top edge changed. redraw the area that altered */
-		
-		a = MIN(item->y1, old_y1);
-		b = MAX(item->y1, old_y1);
-		gnome_canvas_request_redraw (item->canvas, item->x1, a - 1, item->x2, b + 1);
-	}
-	
-	if (item->y2 != old_y2) {
-		
-		/* lower edge changed. redraw the area that altered */
-		
-		a = MIN(item->y2, old_y2);
-		b = MAX(item->y2, old_y2);
-		gnome_canvas_request_redraw (item->canvas, item->x1, a - 1, item->x2, b + 1);
-	}
 }
 
 /* 
@@ -494,8 +476,8 @@ gnome_canvas_simplerect_update (GnomeCanvasItem *item, double *affine, ArtSVP *c
 		gnome_canvas_request_redraw (item->canvas, 
 					   simplerect->bbox_ulx,
 					   simplerect->bbox_uly,
-					   simplerect->bbox_lrx+1,
+					   simplerect->bbox_lrx+0.5,
-					   simplerect->bbox_lry+1);
+					   simplerect->bbox_lry+0.5);
 		simplerect->full_draw_on_update = FALSE;
 	}
 

gtk2_ardour/editor.cc

@@ -643,7 +643,7 @@ Editor::Editor (AudioEngine& eng)
 	edit_pane.pack1 (edit_packer, true, true);
 	edit_pane.pack2 (the_notebook, false, true);
 	
-	edit_pane.signal_size_allocate().connect_notify (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
+	edit_pane.signal_size_allocate().connect (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 
 	top_hbox.pack_start (toolbar_frame, true, true);
 

gtk2_ardour/editor.h

@@ -1506,7 +1506,7 @@ class Editor : public PublicEditor
 	jack_nframes_t autoscroll_distance;
      
 	static gint _autoscroll_canvas (void *);
-	gint autoscroll_canvas ();
+	bool autoscroll_canvas ();
 	void start_canvas_autoscroll (int direction);
 	void stop_canvas_autoscroll ();
 	void maybe_autoscroll (GdkEvent*);

gtk2_ardour/editor_canvas.cc

@@ -273,7 +273,6 @@ Editor::initialize_canvas ()
 void
 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 {
-	static bool first_time = true;
 
 	canvas_width = alloc.get_width();
 	canvas_height = alloc.get_height();
@@ -320,11 +319,8 @@ Editor::track_canvas_allocate (Gtk::Allocation alloc)
 		
 	update_fixed_rulers ();
 
-	if (is_visible() && first_time) {
+	if (is_visible()) {
 		tempo_map_changed (Change (0));
-		first_time = false;
-	} else {
-		redisplay_tempo ();
 	} 
 	
 	Resized (); /* EMIT_SIGNAL */
@@ -531,7 +527,7 @@ Editor::maybe_autoscroll (GdkEvent* event)
 	}
 
 
-	if (autoscroll_direction != last_autoscroll_direction) {
+	if ((autoscroll_direction != last_autoscroll_direction) || (leftmost_frame < frame < rightmost_frame)) {
 		stop_canvas_autoscroll ();
 	}
 	
@@ -545,14 +541,13 @@ Editor::maybe_autoscroll (GdkEvent* event)
 gint
 Editor::_autoscroll_canvas (void *arg)
 {
-	return ((Editor *) arg)->autoscroll_canvas ();
+        return ((Editor *) arg)->autoscroll_canvas ();
 }
 
-gint
+bool
 Editor::autoscroll_canvas ()
 {
 	jack_nframes_t new_frame;
-	bool keep_calling = true;
 	jack_nframes_t limit = max_frames - current_page_frames();
 	GdkEventMotion ev;
 	jack_nframes_t target_frame;
@@ -573,10 +568,6 @@ Editor::autoscroll_canvas ()
 		target_frame = drag_info.current_pointer_frame + autoscroll_distance;
 	}
 
-	if (new_frame != leftmost_frame) {
-		reposition_x_origin (new_frame);
-	}
-
 	/* now fake a motion event to get the object that is being dragged to move too */
 
 	ev.type = GDK_MOTION_NOTIFY;
@@ -596,20 +587,26 @@ Editor::autoscroll_canvas ()
 
 		/* connect the timeout so that we get called repeatedly */
 
-		autoscroll_timeout_tag = g_timeout_add (20, _autoscroll_canvas, this);
+		autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
-		keep_calling = false;
+		return false;
 
-	} else if (autoscroll_cnt == 50) { /* 0.5 seconds */
+	} 
+
+	if (new_frame != leftmost_frame) {
+		reposition_x_origin (new_frame);
+	}
+
+	if (autoscroll_cnt == 50) { /* 0.5 seconds */
 		
 		/* after about a while, speed up a bit by changing the timeout interval */
 
-		autoscroll_distance = (jack_nframes_t) floor (current_page_frames()/50.0f);
+		autoscroll_distance = (jack_nframes_t) floor (current_page_frames()/30.0f);
 		
-	} else if (autoscroll_cnt == 75) { /* 1.0 seconds */
+	} else if (autoscroll_cnt == 150) { /* 1.0 seconds */
 
 		autoscroll_distance = (jack_nframes_t) floor (current_page_frames()/20.0f);
 
-	} else if (autoscroll_cnt == 100) { /* 1.5 seconds */
+	} else if (autoscroll_cnt == 300) { /* 1.5 seconds */
 
 		/* after about another while, speed up by increasing the shift per callback */
 
@@ -617,7 +614,7 @@ Editor::autoscroll_canvas ()
 
 	} 
 
-	return keep_calling;
+	return true;
 }
 
 void

gtk2_ardour/route_time_axis.cc

@@ -118,6 +118,8 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
 
 	hide_button.add (*(manage (new Image (get_xpm("small_x.xpm")))));
 
+	/* XXX is this incomplete? i don't think its very useful atm
+
 	solo_button->signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
 	mute_button->signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
 	playlist_button.signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
@@ -125,6 +127,7 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
 	size_button.signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
 	visual_button.signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
 	hide_button.signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
+	*/
 
 	solo_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::solo_press), false);
 	solo_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::solo_release), false);
@@ -140,7 +143,7 @@ RouteTimeAxisView::RouteTimeAxisView (PublicEditor& ed, Session& sess, boost::sh
 	if (is_track()) {
 		rec_enable_button->set_active (false);
 		rec_enable_button->set_name ("TrackRecordEnableButton");
-		rec_enable_button->signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
+		//rec_enable_button->signal_button_press_event().connect (mem_fun (*this, &RouteTimeAxisView::select_me), false);
 		rec_enable_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::rec_enable_press));
 		controls_table.attach (*rec_enable_button, 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 		ARDOUR_UI::instance()->tooltips().set_tip(*rec_enable_button, _("Record"));

gtk2_ardour/route_ui.cc

@@ -98,7 +98,7 @@ RouteUI::~RouteUI()
 	delete mute_menu;
 }
 
-gint
+bool
 RouteUI::mute_press(GdkEventButton* ev)
 {
 	if (!ignore_toggle) {
@@ -159,7 +159,7 @@ RouteUI::mute_press(GdkEventButton* ev)
 	return true;
 }
 
-gint
+bool
 RouteUI::mute_release(GdkEventButton* ev)
 {
 	if (!ignore_toggle) {
@@ -173,7 +173,7 @@ RouteUI::mute_release(GdkEventButton* ev)
 	return true;
 }
 
-gint
+bool
 RouteUI::solo_press(GdkEventButton* ev)
 {
 	if (!ignore_toggle) {
@@ -253,7 +253,7 @@ RouteUI::solo_press(GdkEventButton* ev)
 	return true;
 }
 
-gint
+bool
 RouteUI::solo_release(GdkEventButton* ev)
 {
 	if (!ignore_toggle) {
@@ -269,7 +269,7 @@ RouteUI::solo_release(GdkEventButton* ev)
 	return true;
 }
 
-gint
+bool
 RouteUI::rec_enable_press(GdkEventButton* ev)
 {
 	if (!ignore_toggle && is_track() && rec_enable_button) {

gtk2_ardour/route_ui.h

@@ -87,11 +87,11 @@ class RouteUI : public virtual AxisView
 
 	XMLNode* get_child_xml_node (const string & childname);
 	
-	gint mute_press(GdkEventButton*);
+	bool mute_press(GdkEventButton*);
-	gint mute_release(GdkEventButton*);
+	bool mute_release(GdkEventButton*);
-	gint solo_press(GdkEventButton*);
+	bool solo_press(GdkEventButton*);
-	gint solo_release(GdkEventButton*);
+	bool solo_release(GdkEventButton*);
-	gint rec_enable_press(GdkEventButton*);
+	bool rec_enable_press(GdkEventButton*);
 
 	void solo_changed(void*);
 	void mute_changed(void*);