Files missing from last commit.

git-svn-id: svn://localhost/ardour2/branches/3.0@5221 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/cairo_widget.cc

@@ -0,0 +1,88 @@
+#include "cairo_widget.h"
+#include "gui_thread.h"
+
+CairoWidget::CairoWidget ()
+	: _width (1),
+	  _height (1),
+	  _dirty (true),
+	  _pixmap (0)
+{
+
+}
+
+CairoWidget::~CairoWidget ()
+{
+	if (_pixmap) {
+		gdk_pixmap_unref (_pixmap);
+	}
+}
+
+bool
+CairoWidget::on_expose_event (GdkEventExpose *event)
+{
+	Gdk::Rectangle const exposure (
+		event->area.x, event->area.y, event->area.width, event->area.height
+		);
+
+	Gdk::Rectangle r = exposure;
+	Gdk::Rectangle content (0, 0, _width, _height);
+	bool intersects;
+	r.intersect (content, intersects);
+	
+	if (intersects) {
+
+		GdkDrawable* drawable = get_window()->gobj ();
+
+		if (_dirty) {
+
+			if (_pixmap) {
+				gdk_pixmap_unref (_pixmap);
+			}
+
+			_pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
+
+			cairo_t* cr = gdk_cairo_create (_pixmap);
+			render (cr);
+			cairo_destroy (cr);
+
+			_dirty = false;
+		}
+
+		gdk_draw_drawable (
+			drawable,
+			get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
+			_pixmap,
+ 			r.get_x(),
+ 			r.get_y(),
+ 			r.get_x(),
+ 			r.get_y(),
+ 			r.get_width(),
+ 			r.get_height()
+			);
+	}
+	
+	return true;
+}
+
+void
+CairoWidget::set_dirty ()
+{
+	ENSURE_GUI_THREAD (mem_fun (*this, &CairoWidget::set_dirty));
+
+	_dirty = true;
+	queue_draw ();
+}
+
+/** Handle a size allocation.
+ *  @param alloc GTK allocation.
+ */
+void
+CairoWidget::on_size_allocate (Gtk::Allocation& alloc)
+{
+	Gtk::EventBox::on_size_allocate (alloc);
+
+	_width = alloc.get_width ();
+	_height = alloc.get_height ();
+
+	set_dirty ();
+}

gtk2_ardour/cairo_widget.h

@@ -0,0 +1,27 @@
+#ifndef __gtk2_ardour_cairo_widget_h__
+#define __gtk2_ardour_cairo_widget_h__
+
+#include <gtkmm/eventbox.h>
+
+class CairoWidget : public Gtk::EventBox
+{
+public:
+	CairoWidget ();
+	virtual ~CairoWidget ();
+
+	void set_dirty ();
+
+protected:
+	virtual void render (cairo_t *) = 0;
+	virtual bool on_expose_event (GdkEventExpose *);
+	void on_size_allocate (Gtk::Allocation &);
+
+	int _width; ///< pixmap width
+	int _height; ///< pixmap height
+	
+private:
+	bool _dirty;
+	GdkPixmap* _pixmap;
+};
+
+#endif

gtk2_ardour/editor_group_tabs.cc

@@ -0,0 +1,125 @@
+#include "ardour/route_group.h"
+#include "editor_group_tabs.h"
+#include "editor.h"
+#include "time_axis_view.h"
+#include "utils.h"
+
+using namespace std;
+using namespace ARDOUR;
+
+EditorGroupTabs::EditorGroupTabs (Editor* e)
+	: _editor (e)
+{
+	
+}
+
+void
+EditorGroupTabs::set_session (Session* s)
+{
+	s->RouteEditGroupChanged.connect (mem_fun (*this, &EditorGroupTabs::set_dirty));
+}
+
+
+/** Handle a size request.
+ *  @param req GTK requisition
+ */
+void
+EditorGroupTabs::on_size_request (Gtk::Requisition *req)
+{
+	/* Use a dummy, small height and the actual width that we want */
+	req->width = 16;
+	req->height = 16;
+}
+
+
+void
+EditorGroupTabs::render (cairo_t* cr)
+{
+	/* background */
+	
+	cairo_set_source_rgb (cr, 0, 0, 0);
+	cairo_rectangle (cr, 0, 0, _width, _height);
+	cairo_fill (cr);
+
+	int32_t curr_start = 0;
+	RouteGroup* curr_group = 0;
+	Gdk::Color curr_colour;
+
+	int32_t y = 0;
+	for (Editor::TrackViewList::iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
+		RouteGroup* g = (*i)->edit_group ();
+
+		if (g != curr_group) {
+			if (curr_group) {
+				draw_group (cr, curr_start, y, curr_group, curr_colour);
+			}
+
+			curr_start = y;
+			curr_group = g;
+			curr_colour = (*i)->color ();
+		}
+
+		y += (*i)->effective_height ();
+	}
+
+	if (curr_group) {
+		draw_group (cr, curr_start, y, curr_group, curr_colour);
+	}
+}
+
+void
+EditorGroupTabs::draw_group (cairo_t* cr, int32_t y1, int32_t y2, RouteGroup* g, Gdk::Color const & colour)
+{
+	double const arc_radius = _width;
+
+	if (g->is_active()) {
+		cairo_set_source_rgba (cr, colour.get_red_p (), colour.get_green_p (), colour.get_blue_p (), 1);
+	} else {
+		cairo_set_source_rgba (cr, 1, 1, 1, 0.2);
+	}
+	
+	cairo_move_to (cr, 0, y1 + arc_radius);
+	cairo_arc (cr, _width, y1 + arc_radius, arc_radius, M_PI, 3 * M_PI / 2);
+	cairo_line_to (cr, _width, y2);
+	cairo_arc (cr, _width, y2 - arc_radius, arc_radius, M_PI / 2, M_PI);
+	cairo_line_to (cr, 0, y1 + arc_radius);
+	cairo_fill (cr);
+
+	pair<string, double> const f = fit_to_pixels (cr, g->name(), y2 - y1 - arc_radius * 2);
+
+	cairo_text_extents_t ext;
+	cairo_text_extents (cr, g->name().c_str(), &ext);
+
+	cairo_set_source_rgb (cr, 1, 1, 1);
+	cairo_move_to (cr, _width - ext.height / 2, y1 + (f.second + y2 - y1) / 2);
+	cairo_save (cr);
+	cairo_rotate (cr, - M_PI / 2);
+	cairo_show_text (cr, f.first.c_str());
+	cairo_restore (cr);
+}
+
+bool
+EditorGroupTabs::on_button_press_event (GdkEventButton* ev)
+{
+	int32_t y = 0;
+	cout << y << "\n";
+	Editor::TrackViewList::iterator i = _editor->track_views.begin();
+	while (y < ev->y && i != _editor->track_views.end()) {
+		y += (*i)->effective_height ();
+		if (y < ev->y) {
+			cout << "skip past " << (*i)->name() << "\n";
+			++i;
+		}
+	}
+
+	if (i == _editor->track_views.end()) {
+		return false;
+	}
+	
+	RouteGroup* g = (*i)->edit_group ();
+	if (g) {
+		g->set_active (!g->is_active (), this);
+	}
+
+	return true;
+}

gtk2_ardour/editor_group_tabs.h

@@ -0,0 +1,19 @@
+#include "cairo_widget.h"
+
+class Editor;
+
+class EditorGroupTabs : public CairoWidget
+{
+public:
+	EditorGroupTabs (Editor *);
+
+	void set_session (ARDOUR::Session *);
+
+private:
+	void on_size_request (Gtk::Requisition *);
+	bool on_button_press_event (GdkEventButton *);
+	void render (cairo_t *);
+	void draw_group (cairo_t *, int32_t, int32_t, ARDOUR::RouteGroup* , Gdk::Color const &);
+	
+	Editor* _editor;
+};