Fixed some valgrind errors from using uninitialized variables in
[ardour.git] / gtk2_ardour / editor_canvas.cc
index 8e91715576161e5cf9f1534c650ffdb07f488dd3..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"
@@ -93,11 +96,15 @@ Editor::initialize_canvas ()
        track_canvas.set_name ("EditorMainCanvas");
        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<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"));
@@ -123,6 +130,8 @@ 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, timebar_height);
@@ -266,44 +275,11 @@ 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);
 
+       reset_hscrollbar_stepping ();
        reset_scrolling_region ();
 
        if (edit_cursor) edit_cursor->set_length (canvas_height);
@@ -360,29 +336,59 @@ Editor::reset_scrolling_region (Gtk::Allocation* alloc)
 
         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
                TimeAxisView *tv = (*i)[route_display_columns.tv];
-               pos += tv->effective_height;
-               pos += track_spacing;
+               if (tv != 0 && !tv->hidden()) {
+                       pos += tv->effective_height;
+                       pos += track_spacing;
+               }
        }
 
-       RefPtr<Gdk::Screen> screen = get_screen();
-
-       if (!screen) {
-               screen = Gdk::Screen::get_default();
-       }
+       double last_canvas_unit =  last_canvas_frame / frames_per_unit;
 
-       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), 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();
-       int w = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 
-       controls_layout.set_size_request (w, min ((gint) pos, (screen->get_height() - 400)));
-       controls_layout.set_size (w, (gint) pos);
+       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
@@ -404,11 +410,24 @@ 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<string> paths;
+       vector<ustring> paths;
        string spath;
        GdkEvent ev;
        jack_nframes_t frame;
@@ -423,7 +442,9 @@ Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context
        double wx;
        double wy;
 
-       track_canvas.window_to_world ( x, y, wx, 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;
@@ -435,25 +456,42 @@ Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context
 
        if ((tvp = trackview_by_y_position (cy)) == 0) {
 
-               /* drop onto canvas background: create a new track */
-
-               insert_paths_as_new_tracks (paths, false);
+               /* 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()) {
-
-                       for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
-                               insert_sndfile_into (*p, true, tv, frame);
-                       }
+                       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);
+}
+