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livetrax/gtk2_ardour/editor_canvas_events.cc

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/*
Copyright (C) 2000 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <cstdlib>
#include <cmath>
#include <ardour/audio_diskstream.h>
#include <ardour/audioplaylist.h>
#include "editor.h"
#include "public_editor.h"
#include "audio_region_view.h"
#include "audio_streamview.h"
#include "crossfade_view.h"
#include "audio_time_axis.h"
#include "region_gain_line.h"
#include "automation_gain_line.h"
#include "automation_pan_line.h"
#include "automation_time_axis.h"
#include "redirect_automation_line.h"
#include "canvas_impl.h"
#include "simplerect.h"
#include "i18n.h"
using namespace sigc;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
bool
Editor::track_canvas_scroll (GdkEventScroll* ev)
{
int x, y;
double wx, wy;
switch (ev->direction) {
case GDK_SCROLL_UP:
if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
//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();
GdkEvent event;
event.type = GDK_BUTTON_RELEASE;
event.button.x = wx;
event.button.y = wy;
nframes_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)) {
if (!current_stepping_trackview) {
step_timeout = Glib::signal_timeout().connect (mem_fun(*this, &Editor::track_height_step_timeout), 500);
if (!(current_stepping_trackview = dynamic_cast<AudioTimeAxisView*> (trackview_by_y_position (ev->y)))) {
return false;
}
}
gettimeofday (&last_track_height_step_timestamp, 0);
current_stepping_trackview->step_height (true);
return true;
} else {
scroll_tracks_up_line ();
return true;
}
break;
case GDK_SCROLL_DOWN:
if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
//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();
GdkEvent event;
event.type = GDK_BUTTON_RELEASE;
event.button.x = wx;
event.button.y = wy;
nframes_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)) {
if (!current_stepping_trackview) {
step_timeout = Glib::signal_timeout().connect (mem_fun(*this, &Editor::track_height_step_timeout), 500);
if (!(current_stepping_trackview = dynamic_cast<AudioTimeAxisView*> (trackview_by_y_position (ev->y)))) {
return false;
}
}
gettimeofday (&last_track_height_step_timestamp, 0);
current_stepping_trackview->step_height (false);
return true;
} else {
scroll_tracks_down_line ();
return true;
}
break;
default:
/* no left/right handling yet */
break;
}
return false;
}
bool
Editor::track_canvas_event (GdkEvent *event, ArdourCanvas::Item* item)
{
gint x, y;
/* this is the handler for events that are not handled by
items.
*/
switch (event->type) {
case GDK_MOTION_NOTIFY:
/* keep those motion events coming */
track_canvas.get_pointer (x, y);
return track_canvas_motion (event);
case GDK_BUTTON_PRESS:
track_canvas.grab_focus();
break;
case GDK_BUTTON_RELEASE:
switch (event->button.button) {
case 4:
case 5:
button_release_handler (item, event, NoItem);
break;
}
break;
case GDK_SCROLL:
track_canvas.grab_focus();
track_canvas_scroll (&event->scroll);
break;
default:
break;
}
return FALSE;
}
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;
}
return false;
}
bool
Editor::typed_event (ArdourCanvas::Item* item, GdkEvent *event, ItemType type)
{
gint ret = FALSE;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
ret = button_press_handler (item, event, type);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, type);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, type);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, type);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, type);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_region_view_event (GdkEvent *event, ArdourCanvas::Item* item, RegionView *rv)
{
gint ret = FALSE;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &rv->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
ret = button_press_handler (item, event, RegionItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, RegionItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, RegionItem);
break;
case GDK_ENTER_NOTIFY:
set_entered_regionview (rv);
break;
case GDK_LEAVE_NOTIFY:
set_entered_regionview (0);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_stream_view_event (GdkEvent *event, ArdourCanvas::Item* item, RouteTimeAxisView *tv)
{
bool ret = FALSE;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = 0;
clicked_control_point = 0;
clicked_trackview = tv;
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(tv);
ret = button_press_handler (item, event, StreamItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, StreamItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, StreamItem);
break;
case GDK_ENTER_NOTIFY:
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_automation_track_event (GdkEvent *event, ArdourCanvas::Item* item, AutomationTimeAxisView *atv)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = 0;
clicked_control_point = 0;
clicked_trackview = atv;
clicked_audio_trackview = 0;
ret = button_press_handler (item, event, AutomationTrackItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, AutomationTrackItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, AutomationTrackItem);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, AutomationTrackItem);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, AutomationTrackItem);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_fade_in_event (GdkEvent *event, ArdourCanvas::Item* item, AudioRegionView *rv)
{
/* we handle only button 3 press/release events */
switch (event->type) {
case GDK_BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &rv->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
if (event->button.button == 3) {
return button_press_handler (item, event, FadeInItem);
}
break;
case GDK_BUTTON_RELEASE:
if (event->button.button == 3) {
return button_release_handler (item, event, FadeInItem);
}
break;
default:
break;
}
/* proxy for the regionview */
return canvas_region_view_event (event, rv->get_canvas_group(), rv);
}
bool
Editor::canvas_fade_in_handle_event (GdkEvent *event, ArdourCanvas::Item* item, AudioRegionView *rv)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &rv->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
ret = button_press_handler (item, event, FadeInHandleItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, FadeInHandleItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, FadeInHandleItem);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, FadeInHandleItem);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, FadeInHandleItem);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_fade_out_event (GdkEvent *event, ArdourCanvas::Item* item, AudioRegionView *rv)
{
/* we handle only button 3 press/release events */
switch (event->type) {
case GDK_BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &rv->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
if (event->button.button == 3) {
return button_press_handler (item, event, FadeOutItem);
}
break;
case GDK_BUTTON_RELEASE:
if (event->button.button == 3) {
return button_release_handler (item, event, FadeOutItem);
}
break;
default:
break;
}
/* proxy for the regionview */
return canvas_region_view_event (event, rv->get_canvas_group(), rv);
}
bool
Editor::canvas_fade_out_handle_event (GdkEvent *event, ArdourCanvas::Item* item, AudioRegionView *rv)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &rv->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
ret = button_press_handler (item, event, FadeOutHandleItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, FadeOutHandleItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, FadeOutHandleItem);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, FadeOutHandleItem);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, FadeOutHandleItem);
break;
default:
break;
}
return ret;
}
struct DescendingRegionLayerSorter {
bool operator()(boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
return a->layer() > b->layer();
}
};
bool
Editor::canvas_crossfade_view_event (GdkEvent* event, ArdourCanvas::Item* item, CrossfadeView* xfv)
{
/* we handle only button 3 press/release events */
switch (event->type) {
case GDK_BUTTON_PRESS:
clicked_crossfadeview = xfv;
clicked_trackview = &clicked_crossfadeview->get_time_axis_view();
if (event->button.button == 3) {
return button_press_handler (item, event, CrossfadeViewItem);
}
break;
case GDK_BUTTON_RELEASE:
if (event->button.button == 3) {
bool ret = button_release_handler (item, event, CrossfadeViewItem);
return ret;
}
break;
default:
break;
}
/* proxy for the upper most regionview */
/* XXX really need to check if we are in the name highlight,
and proxy to that when required.
*/
TimeAxisView& tv (xfv->get_time_axis_view());
AudioTimeAxisView* atv;
if ((atv = dynamic_cast<AudioTimeAxisView*>(&tv)) != 0) {
if (atv->is_audio_track()) {
AudioPlaylist* pl;
if ((pl = dynamic_cast<AudioPlaylist*> (atv->get_diskstream()->playlist())) != 0) {
Playlist::RegionList* rl = pl->regions_at (event_frame (event));
if (!rl->empty()) {
DescendingRegionLayerSorter cmp;
rl->sort (cmp);
RegionView* rv = atv->view()->find_view (rl->front());
/* proxy */
delete rl;
return canvas_region_view_event (event, rv->get_canvas_group(), rv);
}
}
}
}
return TRUE;
}
bool
Editor::canvas_control_point_event (GdkEvent *event, ArdourCanvas::Item* item, ControlPoint* cp)
{
ItemType type;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_control_point = cp;
clicked_trackview = &cp->line.trackview;
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
clicked_regionview = 0;
break;
case GDK_SCROLL_UP:
break;
case GDK_SCROLL_DOWN:
break;
default:
break;
}
if (dynamic_cast<AudioRegionGainLine*> (&cp->line) != 0) {
type = GainControlPointItem;
} else if (dynamic_cast<AutomationGainLine*> (&cp->line) != 0) {
type = GainAutomationControlPointItem;
} else if (dynamic_cast<AutomationPanLine*> (&cp->line) != 0) {
type = PanAutomationControlPointItem;
} else if (dynamic_cast<RedirectAutomationLine*> (&cp->line) != 0) {
type = RedirectAutomationControlPointItem;
} else {
return false;
}
return typed_event (item, event, type);
}
bool
Editor::canvas_line_event (GdkEvent *event, ArdourCanvas::Item* item, AutomationLine* al)
{
ItemType type;
if (dynamic_cast<AudioRegionGainLine*> (al) != 0) {
type = GainLineItem;
} else if (dynamic_cast<AutomationGainLine*> (al) != 0) {
type = GainAutomationLineItem;
} else if (dynamic_cast<AutomationPanLine*> (al) != 0) {
type = PanAutomationLineItem;
} else if (dynamic_cast<RedirectAutomationLine*> (al) != 0) {
type = RedirectAutomationLineItem;
} else {
return false;
}
return typed_event (item, event, type);
}
bool
Editor::canvas_selection_rect_event (GdkEvent *event, ArdourCanvas::Item* item, SelectionRect* rect)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_selection = rect->id;
ret = button_press_handler (item, event, SelectionItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, SelectionItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, SelectionItem);
break;
/* Don't need these at the moment. */
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, SelectionItem);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, SelectionItem);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_selection_start_trim_event (GdkEvent *event, ArdourCanvas::Item* item, SelectionRect* rect)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_selection = rect->id;
ret = button_press_handler (item, event, StartSelectionTrimItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, StartSelectionTrimItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, StartSelectionTrimItem);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, StartSelectionTrimItem);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, StartSelectionTrimItem);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_selection_end_trim_event (GdkEvent *event, ArdourCanvas::Item* item, SelectionRect* rect)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_selection = rect->id;
ret = button_press_handler (item, event, EndSelectionTrimItem);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, EndSelectionTrimItem);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, EndSelectionTrimItem);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, EndSelectionTrimItem);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, EndSelectionTrimItem);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_region_view_name_highlight_event (GdkEvent* event, ArdourCanvas::Item* item, RegionView* rv)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &clicked_regionview->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
ret = button_press_handler (item, event, RegionViewNameHighlight);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, RegionViewNameHighlight);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, RegionViewNameHighlight);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, RegionViewNameHighlight);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, RegionViewNameHighlight);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_region_view_name_event (GdkEvent *event, ArdourCanvas::Item* item, RegionView* rv)
{
bool ret = false;
switch (event->type) {
case GDK_BUTTON_PRESS:
case GDK_2BUTTON_PRESS:
case GDK_3BUTTON_PRESS:
clicked_regionview = rv;
clicked_control_point = 0;
clicked_trackview = &clicked_regionview->get_time_axis_view();
clicked_audio_trackview = dynamic_cast<AudioTimeAxisView*>(clicked_trackview);
ret = button_press_handler (item, event, RegionViewName);
break;
case GDK_BUTTON_RELEASE:
ret = button_release_handler (item, event, RegionViewName);
break;
case GDK_MOTION_NOTIFY:
ret = motion_handler (item, event, RegionViewName);
break;
case GDK_ENTER_NOTIFY:
ret = enter_handler (item, event, RegionViewName);
break;
case GDK_LEAVE_NOTIFY:
ret = leave_handler (item, event, RegionViewName);
break;
default:
break;
}
return ret;
}
bool
Editor::canvas_marker_event (GdkEvent *event, ArdourCanvas::Item* item, Marker* marker)
{
return typed_event (item, event, MarkerItem);
}
bool
Editor::canvas_marker_bar_event (GdkEvent *event, ArdourCanvas::Item* item)
{
return typed_event (item, event, MarkerBarItem);
}
bool
Editor::canvas_range_marker_bar_event (GdkEvent *event, ArdourCanvas::Item* item)
{
return typed_event (item, event, RangeMarkerBarItem);
}
bool
Editor::canvas_transport_marker_bar_event (GdkEvent *event, ArdourCanvas::Item* item)
{
return typed_event (item, event, TransportMarkerBarItem);
}
bool
Editor::canvas_tempo_marker_event (GdkEvent *event, ArdourCanvas::Item* item, TempoMarker* marker)
{
return typed_event (item, event, TempoMarkerItem);
}
bool
Editor::canvas_meter_marker_event (GdkEvent *event, ArdourCanvas::Item* item, MeterMarker* marker)
{
return typed_event (item, event, MeterMarkerItem);
}
bool
Editor::canvas_tempo_bar_event (GdkEvent *event, ArdourCanvas::Item* item)
{
return typed_event (item, event, TempoBarItem);
}
bool
Editor::canvas_meter_bar_event (GdkEvent *event, ArdourCanvas::Item* item)
{
return typed_event (item, event, MeterBarItem);
}
bool
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)
{
return typed_event (item, event, NoItem);
}