Fixed some valgrind errors from using uninitialized variables in
[ardour.git] / gtk2_ardour / editor_canvas.cc
index 3de31f0317415a771b6c268f0e18d8fb536e59c0..b636fccc9cf4ac82d430a9299bbe59c5e7da53da 100644 (file)
@@ -20,6 +20,9 @@
 
 #include <libgnomecanvasmm/init.h>
 #include <jack/types.h>
+#include <gtkmm2ext/utils.h>
+
+#include <ardour/audioregion.h>
 
 #include "ardour_ui.h"
 #include "editor.h"
@@ -36,6 +39,7 @@
 #include "rgb_macros.h"
 #include "utils.h"
 #include "time_axis_view.h"
+#include "audio_time_axis.h"
 
 #include "i18n.h"
 
@@ -90,20 +94,23 @@ Editor::initialize_canvas ()
 
        track_canvas.signal_event().connect (bind (mem_fun (*this, &Editor::track_canvas_event), (ArdourCanvas::Item*) 0));
        track_canvas.set_name ("EditorMainCanvas");
-       track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
+       track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
        track_canvas.signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
-       
+       track_canvas.set_flags (CAN_FOCUS);
+
        /* set up drag-n-drop */
-       vector<Gtk::TargetEntry> target_table;
+
+       vector<TargetEntry> target_table;
        
-       target_table.push_back (TargetEntry ("STRING"));
+       // Drag-N-Drop from the region list can generate this target
+       target_table.push_back (TargetEntry ("regions"));
+
        target_table.push_back (TargetEntry ("text/plain"));
        target_table.push_back (TargetEntry ("text/uri-list"));
        target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 
-       // GTK2FIX
-       // track_canvas.drag_dest_set (target_table, DEST_DEFAULT_ALL, GdkDragAction (Gdk::ACTION_COPY|Gdk::ACTION_MOVE));
-       // track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
+       track_canvas.drag_dest_set (target_table);
+       track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 
        /* stuff for the verbose canvas cursor */
 
@@ -111,8 +118,7 @@ Editor::initialize_canvas ()
 
        verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas.root());
        verbose_canvas_cursor->property_font_desc() = font;
-       // GTK2FIX
-       // verbose_canvas_cursor->property_anchor() = GTK_ANCHOR_NW;
+       verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
        verbose_canvas_cursor->property_fill_color_rgba() = color_map[cVerboseCanvasCursor];
        
        verbose_cursor_visible = false;
@@ -124,9 +130,11 @@ Editor::initialize_canvas ()
        
        time_canvas.set_name ("EditorTimeCanvas");
        time_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
+       time_canvas.set_flags (CAN_FOCUS);
+       time_canvas.set_center_scroll_region (false);
        
        meter_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
-       tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
+       tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height);
        marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 2.0);
        range_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 3.0);
        transport_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 4.0);
@@ -267,48 +275,12 @@ Editor::track_canvas_allocate (Gtk::Allocation alloc)
        canvas_width = alloc.get_width();
        canvas_height = alloc.get_height();
 
-       if (session == 0 && !ARDOUR_UI::instance()->will_create_new_session_automatically()) {
-
-               /* this mess of code is here to find out how wide this text is and
-                  position the message in the center of the editor window.
-               */
-                       
-               int pixel_height;
-               int pixel_width;
-               
-               ustring msg = string_compose ("<span face=\"sans\" style=\"normal\" weight=\"bold\" size=\"x-large\">%1%2</span>",
-                                          _("Start a new session\n"), _("via Session menu"));
-
-               RefPtr<Pango::Layout> layout = create_pango_layout (msg);
-               Pango::FontDescription font = get_font_for_style (N_("FirstActionMessage"));
-               layout->get_pixel_size (pixel_width, pixel_height);
-                       
-               if (first_action_message == 0) {
-                       
-                       first_action_message = new ArdourCanvas::Text (*track_canvas.root());
-                       first_action_message->property_font_desc() = font;
-                       first_action_message->property_fill_color_rgba() = color_map[cFirstActionMessage];
-                       first_action_message->property_x() = (canvas_width - pixel_width) / 2.0;
-                       first_action_message->property_y() = (canvas_height/2.0) - pixel_height;
-                       first_action_message->property_anchor() = ANCHOR_NORTH_WEST;
-                       first_action_message->property_markup() = msg;
-                       
-               } else {
-
-                       /* center it */
-                       first_action_message->property_x() = (canvas_width - pixel_width) / 2.0;
-                       first_action_message->property_y() = (canvas_height/2.0) - pixel_height;
-               }
-       }
-
        zoom_range_clock.set ((jack_nframes_t) floor ((canvas_width * frames_per_unit)));
        edit_cursor->set_position (edit_cursor->current_frame);
        playhead_cursor->set_position (playhead_cursor->current_frame);
 
-       double last_canvas_unit = ceil ((double) max_frames / frames_per_unit);
-       
-       track_canvas.set_scroll_region ( 0.0, 0.0, max (last_canvas_unit, canvas_width), canvas_height);
-       time_canvas.set_scroll_region ( 0.0, 0.0, max (last_canvas_unit, canvas_width), canvas_height);
+       reset_hscrollbar_stepping ();
+       reset_scrolling_region ();
 
        if (edit_cursor) edit_cursor->set_length (canvas_height);
        if (playhead_cursor) playhead_cursor->set_length (canvas_height);
@@ -358,19 +330,168 @@ Editor::track_canvas_allocate (Gtk::Allocation alloc)
 void
 Editor::reset_scrolling_region (Gtk::Allocation* alloc)
 {
+       TreeModel::Children rows = route_display_model->children();
+       TreeModel::Children::iterator i;
+       double pos;
+
+        for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
+               TimeAxisView *tv = (*i)[route_display_columns.tv];
+               if (tv != 0 && !tv->hidden()) {
+                       pos += tv->effective_height;
+                       pos += track_spacing;
+               }
+       }
+
+       double last_canvas_unit =  last_canvas_frame / frames_per_unit;
+
+       track_canvas.set_scroll_region (0.0, 0.0, max (last_canvas_unit, canvas_width), pos);
+
+       // XXX what is the correct height value for the time canvas ? this overstates it
+       time_canvas.set_scroll_region ( 0.0, 0.0, max (last_canvas_unit, canvas_width), canvas_height);
+
+       controls_layout.queue_resize();
+}
+
+void
+Editor::controls_layout_size_request (Requisition* req)
+{
+       TreeModel::Children rows = route_display_model->children();
+       TreeModel::Children::iterator i;
+       double pos;
+
+        for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
+               TimeAxisView *tv = (*i)[route_display_columns.tv];
+               if (tv != 0) {
+                       pos += tv->effective_height;
+                       pos += track_spacing;
+               }
+       }
+
+       RefPtr<Gdk::Screen> screen = get_screen();
+
+       if (!screen) {
+               screen = Gdk::Screen::get_default();
+       }
+
+       /* never let the width of the controls area shrink horizontally */
+
+       edit_controls_vbox.check_resize();
+
+       req->width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
+       
+       /* don't get too big. the fudge factors here are just guesses */
+       
+       req->width = min (req->width, screen->get_width() - 300);
+       req->height = min ((gint) pos, (screen->get_height() - 400));
+
+       /* this one is important: it determines how big the layout thinks it really is, as 
+          opposed to what it displays on the screen
+       */
+
+       controls_layout.set_size (req->width, (gint) pos);
 }
 
 bool
 Editor::track_canvas_map_handler (GdkEventAny* ev)
 {
-       track_canvas_scroller.get_window()->set_cursor (*current_canvas_cursor);
+       track_canvas.get_window()->set_cursor (*current_canvas_cursor);
        return false;
 }
 
 bool
 Editor::time_canvas_map_handler (GdkEventAny* ev)
 {
-       time_canvas_scroller.get_window()->set_cursor (*timebar_cursor);
+       time_canvas.get_window()->set_cursor (*timebar_cursor);
        return false;
 }
 
+void  
+Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
+                                        int x, int y, 
+                                        const SelectionData& data,
+                                        guint info, guint time)
+{
+       if (data.get_target() == "regions") {
+               drop_regions (context, x, y, data, info, time);
+       } else {
+               drop_paths (context, x, y, data, info, time);
+       }
+}
+
+void
+Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
+                   int x, int y, 
+                   const SelectionData& data,
+                   guint info, guint time)
+{
+       TimeAxisView* tvp;
+       AudioTimeAxisView* tv;
+       double cy;
+       vector<ustring> paths;
+       string spath;
+       GdkEvent ev;
+       jack_nframes_t frame;
+
+       if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
+               goto out;
+       }
+
+       /* D-n-D coordinates are window-relative, so convert to "world" coordinates
+        */
+
+       double wx;
+       double wy;
+
+       track_canvas.window_to_world (x, y, wx, wy);
+       wx += horizontal_adjustment.get_value();
+       wy += vertical_adjustment.get_value();
+       
+       ev.type = GDK_BUTTON_RELEASE;
+       ev.button.x = wx;
+       ev.button.y = wy;
+
+       frame = event_frame (&ev, 0, &cy);
+
+       snap_to (frame);
+
+       if ((tvp = trackview_by_y_position (cy)) == 0) {
+
+               /* drop onto canvas background: create new tracks */
+
+               jack_nframes_t pos = 0;
+               do_embed (paths, false, ImportAsTrack, 0, pos, false);
+               
+       } else if ((tv = dynamic_cast<AudioTimeAxisView*>(tvp)) != 0) {
+
+               /* check that its an audio track, not a bus */
+               
+               if (tv->get_diskstream()) {
+                       do_embed (paths, false, ImportToTrack, tv->audio_track(), frame, true);
+               }
+       }
+
+  out:
+       context->drag_finish (true, false, time);
+}
+
+void
+Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
+                     int x, int y, 
+                     const SelectionData& data,
+                     guint info, guint time)
+{
+       const DnDTreeView::SerializedObjectPointers* sr = reinterpret_cast<const DnDTreeView::SerializedObjectPointers*> (data.get_data());
+
+       for (uint32_t i = 0; i < sr->cnt; ++i) {
+
+               Region* r = reinterpret_cast<Region*> (sr->ptr[i]);
+               AudioRegion* ar;
+
+               if ((ar = dynamic_cast<AudioRegion*>(r)) != 0) {
+                       insert_region_list_drag (*ar, x, y);
+               }
+       }
+
+       context->drag_finish (true, false, time);
+}
+