Remove unnecessary 0 checks before delete; see http://www.parashift.com/c++-faq-lite...
[ardour.git] / gtk2_ardour / editor_canvas_events.cc
index a22edea7e0b70dd6191b0272e2e7650cf4cf1c05..f821220cf38a2229ebef88650891cbc91aa8f6e7 100644 (file)
@@ -19,6 +19,7 @@
 
 #include <cstdlib>
 #include <cmath>
+#include <algorithm>
 
 #include <pbd/stacktrace.h>
 
 #include "control_point.h"
 #include "canvas_impl.h"
 #include "simplerect.h"
+#include "canvas-note-event.h"
+#include "canvas-program-change.h"
 
 #include "i18n.h"
 
 using namespace sigc;
+using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 using namespace Gtk;
+using namespace ArdourCanvas;
 
 bool
 Editor::track_canvas_scroll (GdkEventScroll* ev)
 {
        int x, y;
        double wx, wy;
-
-       switch (ev->direction) {
+       nframes64_t xdelta;
+       int direction = ev->direction;
+       CanvasNoteEvent     *midi_event = dynamic_cast<CanvasNoteEvent *>(track_canvas->get_item_at(ev->x, ev->y));
+       CanvasFlagRect      *flag_rect  = dynamic_cast<CanvasFlagRect *>(track_canvas->get_item_at(ev->x, ev->y));
+       CanvasFlagText      *flag_text  = dynamic_cast<CanvasFlagText *>(track_canvas->get_item_at(ev->x, ev->y));
+
+  retry:
+       switch (direction) {
        case GDK_SCROLL_UP:
-               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
                        //if (ev->state == GDK_CONTROL_MASK) {
                        /* XXX 
                           the ev->x will be out of step with the canvas
                           if we're in mid zoom, so we have to get the damn mouse 
                           pointer again
                        */
-                       track_canvas.get_pointer (x, y);
-                       track_canvas.window_to_world (x, y, wx, wy);
-                       wx += horizontal_adjustment.get_value();
-                       wy += vertical_adjustment.get_value();
-                       
+                       track_canvas->get_pointer (x, y);
+                       track_canvas->window_to_world (x, y, wx, wy);
+
                        GdkEvent event;
                        event.type = GDK_BUTTON_RELEASE;
                        event.button.x = wx;
                        event.button.y = wy;
                        
-                       nframes_t where = event_frame (&event, 0, 0);
+                       nframes64_t where = event_frame (&event, 0, 0);
                        temporal_zoom_to_frame (false, where);
                        return true;
-               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
+               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
+                       direction = GDK_SCROLL_LEFT;
+                       goto retry;
+               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
                        if (!current_stepping_trackview) {
                                step_timeout = Glib::signal_timeout().connect (mem_fun(*this, &Editor::track_height_step_timeout), 500);
-                               if (!(current_stepping_trackview = trackview_by_y_position (ev->y))) {
+                               if (!(current_stepping_trackview = trackview_by_y_position (ev->y + vertical_adjustment.get_value() - canvas_timebars_vsize))) {
                                        return false;
                                }
                        }
-                       gettimeofday (&last_track_height_step_timestamp, 0);
+                       last_track_height_step_timestamp = get_microseconds();
                        current_stepping_trackview->step_height (true);
                        return true;
                } else {
+                       if(midi_event) {
+                               return midi_event->on_event(reinterpret_cast<GdkEvent *>(ev));
+                       } else if (flag_rect) {
+                               return flag_rect->on_event(reinterpret_cast<GdkEvent *>(ev));                           
+                       } else if (flag_text) {
+                               return flag_text->on_event(reinterpret_cast<GdkEvent *>(ev));                           
+                       }
                        scroll_tracks_up_line ();
                        return true;
                }
                break;
+
        case GDK_SCROLL_DOWN:
-               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
                        //if (ev->state == GDK_CONTROL_MASK) {
-                       track_canvas.get_pointer (x, y);
-                       track_canvas.window_to_world (x, y, wx, wy);
-                       wx += horizontal_adjustment.get_value();
-                       wy += vertical_adjustment.get_value();
-                       
+                       track_canvas->get_pointer (x, y);
+                       track_canvas->window_to_world (x, y, wx, wy);
+
                        GdkEvent event;
                        event.type = GDK_BUTTON_RELEASE;
                        event.button.x = wx;
                        event.button.y = wy;
                        
-                       nframes_t where = event_frame (&event, 0, 0);
+                       nframes64_t where = event_frame (&event, 0, 0);
                        temporal_zoom_to_frame (true, where);
                        return true;
-               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
+               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
+                       direction = GDK_SCROLL_RIGHT;
+                       goto retry;
+               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
                        if (!current_stepping_trackview) {
                                step_timeout = Glib::signal_timeout().connect (mem_fun(*this, &Editor::track_height_step_timeout), 500);
-                               if (!(current_stepping_trackview = trackview_by_y_position (ev->y))) {
+                               if (!(current_stepping_trackview = trackview_by_y_position (ev->y + vertical_adjustment.get_value() - canvas_timebars_vsize))) {
                                        return false;
                                }
                        }
-                       gettimeofday (&last_track_height_step_timestamp, 0);
+                       last_track_height_step_timestamp = get_microseconds();
                        current_stepping_trackview->step_height (false);
                        return true;
                } else {
+                       if(midi_event) {
+                               return midi_event->on_event(reinterpret_cast<GdkEvent *>(ev));
+                       } else if (flag_rect) {
+                               return flag_rect->on_event(reinterpret_cast<GdkEvent *>(ev));                           
+                       } else if (flag_text) {
+                               return flag_text->on_event(reinterpret_cast<GdkEvent *>(ev));                           
+                       }
                        scroll_tracks_down_line ();
                        return true;
                }
                break;  
 
+       case GDK_SCROLL_LEFT:
+               xdelta = (current_page_frames() / 8);
+               if (leftmost_frame > xdelta) {
+                       reset_x_origin (leftmost_frame - xdelta);
+               } else {
+                       reset_x_origin (0);
+               }
+               break;
+
+       case GDK_SCROLL_RIGHT:
+               xdelta = (current_page_frames() / 8);
+               if (max_frames - xdelta > leftmost_frame) {
+                       reset_x_origin (leftmost_frame + xdelta);
+               } else {
+                       reset_x_origin (max_frames - current_page_frames());
+               }
+               break;
+
        default:
-               /* no left/right handling yet */
+               /* what? */
                break;
        }
        
@@ -133,7 +179,7 @@ Editor::track_canvas_scroll (GdkEventScroll* ev)
 bool
 Editor::track_canvas_scroll_event (GdkEventScroll *event)
 {
-       track_canvas.grab_focus();
+       track_canvas->grab_focus();
        track_canvas_scroll (event);
        return false;
 }
@@ -141,7 +187,8 @@ Editor::track_canvas_scroll_event (GdkEventScroll *event)
 bool
 Editor::track_canvas_button_press_event (GdkEventButton *event)
 {
-       track_canvas.grab_focus();
+       selection->clear ();
+       track_canvas->grab_focus();
        return false;
 }
 
@@ -159,7 +206,7 @@ Editor::track_canvas_motion_notify_event (GdkEventMotion *event)
 {
        int x, y;
        /* keep those motion events coming */
-       track_canvas.get_pointer (x, y);
+       track_canvas->get_pointer (x, y);
        return false;
 }
 
@@ -167,9 +214,10 @@ bool
 Editor::track_canvas_motion (GdkEvent *ev)
 {
        if (verbose_cursor_visible) {
-               verbose_canvas_cursor->property_x() = ev->motion.x + 20;
-               verbose_canvas_cursor->property_y() = ev->motion.y + 20;
+               verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (ev->motion.x + 10);
+               verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (ev->motion.y + 10);
        }
+
        return false;
 }
 
@@ -235,10 +283,12 @@ Editor::canvas_region_view_event (GdkEvent *event, ArdourCanvas::Item* item, Reg
                break;
 
        case GDK_ENTER_NOTIFY:
+               set_entered_track (&rv->get_time_axis_view ());
                set_entered_regionview (rv);
                break;
 
        case GDK_LEAVE_NOTIFY:
+               set_entered_track (0);
                set_entered_regionview (0);
                break;
 
@@ -274,6 +324,11 @@ Editor::canvas_stream_view_event (GdkEvent *event, ArdourCanvas::Item* item, Rou
                break;
 
        case GDK_ENTER_NOTIFY:
+               set_entered_track (tv);
+               break;
+
+       case GDK_LEAVE_NOTIFY:
+               set_entered_track (0);
                break;
 
        default:
@@ -283,8 +338,6 @@ Editor::canvas_stream_view_event (GdkEvent *event, ArdourCanvas::Item* item, Rou
        return ret;
 }
 
-
-
 bool
 Editor::canvas_automation_track_event (GdkEvent *event, ArdourCanvas::Item* item, AutomationTimeAxisView *atv)
 {
@@ -551,6 +604,8 @@ Editor::canvas_crossfade_view_event (GdkEvent* event, ArdourCanvas::Item* item,
                                        
                                        return canvas_region_view_event (event, rv->get_canvas_group(), rv);
                                } 
+
+                               delete rl;
                        }
                }
        }
@@ -803,6 +858,12 @@ Editor::canvas_transport_marker_bar_event (GdkEvent *event, ArdourCanvas::Item*
        return typed_event (item, event, TransportMarkerBarItem);
 }
 
+bool
+Editor::canvas_cd_marker_bar_event (GdkEvent *event, ArdourCanvas::Item* item)
+{
+       return typed_event (item, event, CdMarkerBarItem);
+}
+
 bool
 Editor::canvas_tempo_marker_event (GdkEvent *event, ArdourCanvas::Item* item, TempoMarker* marker)
 {
@@ -833,12 +894,6 @@ Editor::canvas_playhead_cursor_event (GdkEvent *event, ArdourCanvas::Item* item)
        return typed_event (item, event, PlayheadCursorItem);
 }
 
-bool
-Editor::canvas_edit_cursor_event (GdkEvent *event, ArdourCanvas::Item* item)
-{
-       return typed_event (item, event, EditCursorItem);
-}
-
 bool
 Editor::canvas_zoom_rect_event (GdkEvent *event, ArdourCanvas::Item* item)
 {