#include "pbd/stacktrace.h"
#include "canvas/canvas.h"
+#include "canvas/colors.h"
#include "canvas/debug.h"
#include "canvas/line.h"
#include "canvas/scroll_group.h"
+#include "canvas/utils.h"
using namespace std;
using namespace ArdourCanvas;
/** Construct a new Canvas */
Canvas::Canvas ()
: _root (this)
+ , _bg_color (rgba_to_color (0, 1.0, 0.0, 1.0))
{
set_epoch ();
}
tooltip_timeout_msecs = msecs;
}
+void
+Canvas::set_background_color (Color c)
+{
+ _bg_color = c;
+
+ boost::optional<Rect> r = _root.bounding_box();
+
+ if (r) {
+ request_redraw (_root.item_to_window (r.get()));
+ }
+}
+
void
GtkCanvas::re_enter ()
{
{
/* these are the events we want to know about */
add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | Gdk::POINTER_MOTION_MASK |
- Gdk::SCROLL_MASK | Gdk::ENTER_NOTIFY_MASK | Gdk::LEAVE_NOTIFY_MASK);
+ Gdk::SCROLL_MASK | Gdk::ENTER_NOTIFY_MASK | Gdk::LEAVE_NOTIFY_MASK |
+ Gdk::KEY_PRESS_MASK | Gdk::KEY_RELEASE_MASK);
}
void
if (!canvas_image) {
canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height());
}
+ Cairo::RefPtr<Cairo::Context> draw_context = Cairo::Context::create (canvas_image);
+ Cairo::RefPtr<Cairo::Context> window_context = get_window()->create_cairo_context ();
+#else
+ Cairo::RefPtr<Cairo::Context> draw_context = get_window()->create_cairo_context ();
+#endif
- {
- /* scope for image_context */
- Cairo::RefPtr<Cairo::Context> image_context = Cairo::Context::create (canvas_image);
-
- /* clear expose area */
-
- image_context->save ();
- image_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
- image_context->clip ();
- image_context->set_operator (Cairo::OPERATOR_SOURCE);
- // TODO get canvas backround see CairoWidget::get_parent_bg
- // also subscribe to parent's signal_style_changed()
- // ..until new canvas color-theme API is in place, hardcode some values.
- image_context->set_source_rgba (84./255., 85./255., 93./255., 1.0);
- image_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
- image_context->fill ();
- image_context->restore ();
-
- /* render into image surface */
-
- render (Rect (ev->area.x, ev->area.y, ev->area.x + ev->area.width, ev->area.y + ev->area.height), image_context);
-
- /* image surface is flushed when image_context goes out of scope */
- }
+ /* draw background color */
+
+ draw_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+ draw_context->clip_preserve ();
+ set_source_rgba (draw_context, _bg_color);
+ draw_context->fill ();
+
+ /* render canvas */
+
+ render (Rect (ev->area.x, ev->area.y, ev->area.x + ev->area.width, ev->area.y + ev->area.height), draw_context);
+#ifdef USE_CAIRO_IMAGE_SURFACE
/* now blit our private surface back to the GDK one */
- Cairo::RefPtr<Cairo::Context> cairo_context = get_window()->create_cairo_context ();
-
- cairo_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
- cairo_context->clip ();
- cairo_context->set_source (canvas_image, 0, 0);
- cairo_context->set_operator (Cairo::OPERATOR_SOURCE);
- cairo_context->paint ();
-
-#else
-
- Cairo::RefPtr<Cairo::Context> cairo_context = get_window()->create_cairo_context ();
- render (Rect (ev->area.x, ev->area.y, ev->area.x + ev->area.width, ev->area.y + ev->area.height), cairo_context);
-
+ window_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
+ window_context->clip ();
+ window_context->set_source (canvas_image, 0, 0);
+ window_context->set_operator (Cairo::OPERATOR_SOURCE);
+ window_context->paint ();
#endif
return true;
return deliver_event (reinterpret_cast<GdkEvent*>(©));
}
+/** Handler for GDK key press events.
+ * @param ev Event.
+ * @return true if the event was handled.
+ */
+bool
+GtkCanvas::on_key_press_event (GdkEventKey* ev)
+{
+ DEBUG_TRACE (PBD::DEBUG::CanvasEvents, "canvas key press\n");
+ return deliver_event (reinterpret_cast<GdkEvent*>(ev));
+}
+
+/** Handler for GDK key release events.
+ * @param ev Event.
+ * @return true if the event was handled.
+ */
+bool
+GtkCanvas::on_key_release_event (GdkEventKey* ev)
+{
+ DEBUG_TRACE (PBD::DEBUG::CanvasEvents, "canvas key release\n");
+ return deliver_event (reinterpret_cast<GdkEvent*>(ev));
+}
+
/** Handler for GDK button press events.
* @param ev Event.
* @return true if the event was handled.