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livetrax/gtk2_ardour/editor_canvas.cc

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/*
Copyright (C) 2005 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.
*/
#ifdef WAF_BUILD
#include "gtk2ardour-config.h"
#endif
#include <libgnomecanvasmm/init.h>
#include <libgnomecanvasmm/pixbuf.h>
#include <jack/types.h>
#include "gtkmm2ext/utils.h"
#include "ardour/profile.h"
#include "ardour/rc_configuration.h"
#include "ardour/smf_source.h"
#include "ardour_ui.h"
#include "editor.h"
#include "global_signals.h"
#include "waveview.h"
#include "simplerect.h"
#include "simpleline.h"
#include "waveview_p.h"
#include "simplerect_p.h"
#include "simpleline_p.h"
#include "canvas_impl.h"
#include "canvas-noevent-text.h"
#include "editing.h"
#include "rgb_macros.h"
#include "utils.h"
#include "audio_time_axis.h"
#include "editor_drag.h"
#include "region_view.h"
#include "editor_group_tabs.h"
#include "editor_summary.h"
#include "video_timeline.h"
#include "keyboard.h"
#include "editor_cursors.h"
#include "mouse_cursors.h"
#include "verbose_cursor.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Glib;
using namespace Gtkmm2ext;
using namespace Editing;
/* XXX this is a hack. it ought to be the maximum value of an framepos_t */
const double max_canvas_coordinate = (double) JACK_MAX_FRAMES;
extern "C"
{
GType gnome_canvas_simpleline_get_type(void);
GType gnome_canvas_simplerect_get_type(void);
GType gnome_canvas_waveview_get_type(void);
GType gnome_canvas_imageframe_get_type(void);
}
static void ardour_canvas_type_init()
{
// Map gtypes to gtkmm wrapper-creation functions:
Glib::wrap_register(gnome_canvas_simpleline_get_type(), &Gnome::Canvas::SimpleLine_Class::wrap_new);
Glib::wrap_register(gnome_canvas_simplerect_get_type(), &Gnome::Canvas::SimpleRect_Class::wrap_new);
Glib::wrap_register(gnome_canvas_waveview_get_type(), &Gnome::Canvas::WaveView_Class::wrap_new);
// Register the gtkmm gtypes:
(void) Gnome::Canvas::WaveView::get_type();
(void) Gnome::Canvas::SimpleLine::get_type();
(void) Gnome::Canvas::SimpleRect::get_type();
}
void
Editor::initialize_canvas ()
{
if (getenv ("ARDOUR_NON_AA_CANVAS")) {
track_canvas = new ArdourCanvas::Canvas ();
} else {
track_canvas = new ArdourCanvas::CanvasAA ();
}
track_canvas->set_can_default (true);
set_default (*track_canvas);
ArdourCanvas::init ();
ardour_canvas_type_init ();
/* don't try to center the canvas */
track_canvas->set_center_scroll_region (false);
track_canvas->set_dither (Gdk::RGB_DITHER_NONE);
gint phys_width = physical_screen_width (Glib::RefPtr<Gdk::Window>());
gint phys_height = physical_screen_height (Glib::RefPtr<Gdk::Window>());
_verbose_cursor = new VerboseCursor (this);
/* on the bottom, an image */
if (Profile->get_sae()) {
Image img (::get_icon (X_("saelogo")));
logo_item = new ArdourCanvas::Pixbuf (*track_canvas->root(), 0.0, 0.0, img.get_pixbuf());
// logo_item->property_height_in_pixels() = true;
// logo_item->property_width_in_pixels() = true;
// logo_item->property_height_set() = true;
// logo_item->property_width_set() = true;
logo_item->show ();
}
/* a group to hold time (measure) lines */
time_line_group = new ArdourCanvas::Group (*track_canvas->root());
#ifdef GTKOSX
/*XXX please don't laugh. this actually improves canvas performance on osx */
bogus_background_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, max_canvas_coordinate/3, phys_height);
bogus_background_rect->property_outline_pixels() = 0;
#endif
transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, phys_height);
transport_loop_range_rect->property_outline_pixels() = 1;
transport_loop_range_rect->hide();
transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, phys_height);
transport_punch_range_rect->property_outline_pixels() = 0;
transport_punch_range_rect->hide();
_background_group = new ArdourCanvas::Group (*track_canvas->root());
_master_group = new ArdourCanvas::Group (*track_canvas->root());
_trackview_group = new ArdourCanvas::Group (*_master_group);
_region_motion_group = new ArdourCanvas::Group (*_trackview_group);
meter_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
meter_bar = new ArdourCanvas::SimpleRect (*meter_bar_group, 0.0, 0.0, phys_width, timebar_height - 1);
meter_bar->property_outline_pixels() = 1;
meter_bar->property_outline_what() = 0x8;
tempo_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
tempo_bar = new ArdourCanvas::SimpleRect (*tempo_bar_group, 0.0, 0.0, phys_width, (timebar_height - 1));
tempo_bar->property_outline_pixels() = 1;
tempo_bar->property_outline_what() = 0x8;
range_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_bar_group, 0.0, 0.0, phys_width, (timebar_height - 1));
range_marker_bar->property_outline_pixels() = 1;
range_marker_bar->property_outline_what() = 0x8;
transport_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_bar_group, 0.0, 0.0, phys_width, (timebar_height - 1));
transport_marker_bar->property_outline_pixels() = 1;
transport_marker_bar->property_outline_what() = 0x8;
marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
marker_bar = new ArdourCanvas::SimpleRect (*marker_bar_group, 0.0, 0.0, phys_width, (timebar_height - 1));
marker_bar->property_outline_pixels() = 1;
marker_bar->property_outline_what() = 0x8;
cd_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_bar_group, 0.0, 0.0, phys_width, (timebar_height - 1));
cd_marker_bar->property_outline_pixels() = 1;
cd_marker_bar->property_outline_what() = 0x8;
videotl_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
if (Profile->get_sae()) {
videotl_bar = new ArdourCanvas::SimpleRect (*videotl_bar_group, 0.0, 0.0, phys_width, (timebar_height * videotl_bar_height - 1));
videotl_bar->property_outline_pixels() = 1;
} else {
videotl_bar = new ArdourCanvas::SimpleRect (*videotl_bar_group, 0.0, 0.0, phys_width, (timebar_height * videotl_bar_height));
videotl_bar->property_outline_pixels() = 0;
}
videotl_bar->property_outline_what() = (0x1 | 0x8);
ARDOUR_UI::instance()->video_timeline = new VideoTimeLine(this, videotl_bar_group, (timebar_height * videotl_bar_height));
timebar_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
cursor_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
meter_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 5.0);
tempo_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 4.0);
range_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 3.0);
transport_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 2.0);
marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height);
cd_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, 0.0);
videotl_group = new ArdourCanvas::Group (*timebar_group, 0.0, 0.0);
cd_marker_bar_drag_rect = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, 100, timebar_height);
cd_marker_bar_drag_rect->property_outline_pixels() = 0;
cd_marker_bar_drag_rect->hide ();
range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, 100, timebar_height);
range_bar_drag_rect->property_outline_pixels() = 0;
range_bar_drag_rect->hide ();
transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, 100, timebar_height);
transport_bar_drag_rect->property_outline_pixels() = 0;
transport_bar_drag_rect->hide ();
transport_punchin_line = new ArdourCanvas::SimpleLine (*_master_group);
transport_punchin_line->property_x1() = 0.0;
transport_punchin_line->property_y1() = 0.0;
transport_punchin_line->property_x2() = 0.0;
transport_punchin_line->property_y2() = phys_height;
transport_punchin_line->hide ();
transport_punchout_line = new ArdourCanvas::SimpleLine (*_master_group);
transport_punchout_line->property_x1() = 0.0;
transport_punchout_line->property_y1() = 0.0;
transport_punchout_line->property_x2() = 0.0;
transport_punchout_line->property_y2() = phys_height;
transport_punchout_line->hide();
// used to show zoom mode active zooming
zoom_rect = new ArdourCanvas::SimpleRect (*_master_group, 0.0, 0.0, 0.0, 0.0);
zoom_rect->property_outline_pixels() = 1;
zoom_rect->hide();
zoom_rect->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
// used as rubberband rect
rubberband_rect = new ArdourCanvas::SimpleRect (*_trackview_group, 0.0, 0.0, 0.0, 0.0);
rubberband_rect->property_outline_pixels() = 1;
rubberband_rect->hide();
tempo_bar->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
meter_bar->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
marker_bar->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
cd_marker_bar->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
videotl_bar_group->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_videotl_bar_event), videotl_bar));
range_marker_bar->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
transport_marker_bar->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
playhead_cursor = new EditorCursor (*this, &Editor::canvas_playhead_cursor_event);
if (logo_item) {
logo_item->lower_to_bottom ();
}
/* need to handle 4 specific types of events as catch-alls */
track_canvas->signal_scroll_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_scroll_event));
track_canvas->signal_motion_notify_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_motion_notify_event));
track_canvas->signal_button_press_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_button_press_event));
track_canvas->signal_button_release_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_button_release_event));
track_canvas->signal_drag_motion().connect (sigc::mem_fun (*this, &Editor::track_canvas_drag_motion));
track_canvas->signal_key_press_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_key_press));
track_canvas->signal_key_release_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_key_release));
track_canvas->set_name ("EditorMainCanvas");
track_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK | Gdk::SCROLL_MASK | Gdk::KEY_PRESS_MASK | Gdk::KEY_RELEASE_MASK);
track_canvas->signal_leave_notify_event().connect (sigc::mem_fun(*this, &Editor::left_track_canvas), false);
track_canvas->signal_enter_notify_event().connect (sigc::mem_fun(*this, &Editor::entered_track_canvas), false);
track_canvas->set_flags (CAN_FOCUS);
/* set up drag-n-drop */
vector<TargetEntry> target_table;
// 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"));
track_canvas->drag_dest_set (target_table);
track_canvas->signal_drag_data_received().connect (sigc::mem_fun(*this, &Editor::track_canvas_drag_data_received));
track_canvas->signal_size_allocate().connect (sigc::mem_fun(*this, &Editor::track_canvas_allocate));
ColorsChanged.connect (sigc::mem_fun (*this, &Editor::color_handler));
color_handler();
}
void
Editor::track_canvas_allocate (Gtk::Allocation alloc)
{
canvas_allocation = alloc;
track_canvas_size_allocated ();
}
bool
Editor::track_canvas_size_allocated ()
{
bool height_changed = _canvas_height != canvas_allocation.get_height();
_canvas_width = canvas_allocation.get_width();
_canvas_height = canvas_allocation.get_height();
if (_session) {
TrackViewList::iterator i;
for (i = track_views.begin(); i != track_views.end(); ++i) {
(*i)->clip_to_viewport ();
}
}
if (height_changed) {
if (playhead_cursor) {
playhead_cursor->set_length (_canvas_height);
}
for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
i->second->canvas_height_set (_canvas_height);
}
vertical_adjustment.set_page_size (_canvas_height);
last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
if ((vertical_adjustment.get_value() + _canvas_height) >= vertical_adjustment.get_upper()) {
/*
We're increasing the size of the canvas while the bottom is visible.
We scroll down to keep in step with the controls layout.
*/
vertical_adjustment.set_value (full_canvas_height - _canvas_height);
}
}
update_fixed_rulers();
redisplay_tempo (false);
_summary->set_overlays_dirty ();
return false;
}
void
Editor::reset_controls_layout_width ()
{
GtkRequisition req;
gint w;
edit_controls_vbox.size_request (req);
w = req.width;
if (_group_tabs->is_mapped()) {
_group_tabs->size_request (req);
w += req.width;
}
/* the controls layout has no horizontal scrolling, its visible
width is always equal to the total width of its contents.
*/
controls_layout.property_width() = w;
controls_layout.property_width_request() = w;
}
void
Editor::reset_controls_layout_height (int32_t h)
{
/* set the height of the scrollable area (i.e. the sum of all contained widgets)
*/
controls_layout.property_height() = h;
/* size request is set elsewhere, see ::track_canvas_allocate() */
}
bool
Editor::track_canvas_map_handler (GdkEventAny* /*ev*/)
{
if (current_canvas_cursor) {
set_canvas_cursor (current_canvas_cursor);
}
return false;
}
/** This is called when something is dropped onto the track canvas */
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);
}
}
bool
Editor::idle_drop_paths (vector<string> paths, framepos_t frame, double ypos, bool copy)
{
drop_paths_part_two (paths, frame, ypos, copy);
return false;
}
void
Editor::drop_paths_part_two (const vector<string>& paths, framepos_t frame, double ypos, bool copy)
{
RouteTimeAxisView* tv;
/* MIDI files must always be imported, because we consider them
* writable. So split paths into two vectors, and follow the import
* path on the MIDI part.
*/
vector<string> midi_paths;
vector<string> audio_paths;
for (vector<string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {
if (SMFSource::safe_midi_file_extension (*i)) {
midi_paths.push_back (*i);
} else {
audio_paths.push_back (*i);
}
}
std::pair<TimeAxisView*, int> const tvp = trackview_by_y_position (ypos);
if (tvp.first == 0) {
/* drop onto canvas background: create new tracks */
frame = 0;
do_import (midi_paths, Editing::ImportDistinctFiles, ImportAsTrack, SrcBest, frame);
if (Profile->get_sae() || Config->get_only_copy_imported_files() || copy) {
do_import (audio_paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack, SrcBest, frame);
} else {
do_embed (audio_paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
}
} else if ((tv = dynamic_cast<RouteTimeAxisView*> (tvp.first)) != 0) {
/* check that its a track, not a bus */
if (tv->track()) {
/* select the track, then embed/import */
selection->set (tv);
do_import (midi_paths, Editing::ImportSerializeFiles, ImportToTrack, SrcBest, frame);
if (Profile->get_sae() || Config->get_only_copy_imported_files() || copy) {
do_import (audio_paths, Editing::ImportSerializeFiles, Editing::ImportToTrack, SrcBest, frame);
} else {
do_embed (audio_paths, Editing::ImportSerializeFiles, ImportToTrack, frame);
}
}
}
}
void
Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
int x, int y,
const SelectionData& data,
guint info, guint time)
{
vector<string> paths;
GdkEvent ev;
framepos_t frame;
double wx;
double wy;
double cy;
if (convert_drop_to_paths (paths, context, x, y, data, info, time) == 0) {
/* D-n-D coordinates are window-relative, so convert to "world" coordinates
*/
track_canvas->window_to_world (x, y, wx, wy);
ev.type = GDK_BUTTON_RELEASE;
ev.button.x = wx;
ev.button.y = wy;
frame = event_frame (&ev, 0, &cy);
snap_to (frame);
bool copy = ((context->get_actions() & (Gdk::ACTION_COPY | Gdk::ACTION_LINK | Gdk::ACTION_MOVE)) == Gdk::ACTION_COPY);
#ifdef GTKOSX
/* We are not allowed to call recursive main event loops from within
the main event loop with GTK/Quartz. Since import/embed wants
to push up a progress dialog, defer all this till we go idle.
*/
Glib::signal_idle().connect (sigc::bind (sigc::mem_fun (*this, &Editor::idle_drop_paths), paths, frame, cy, copy));
#else
drop_paths_part_two (paths, frame, cy, copy);
#endif
}
context->drag_finish (true, false, time);
}
/** If the editor window is arranged such that the edge of the trackview is right up
* against the edge of the screen, autoscroll will not work very well. In this situation,
* we start autoscrolling some distance in from the right-hand-side of the screen edge;
* this is the distance at which that happens.
*/
int
Editor::autoscroll_fudge_threshold () const
{
return current_page_frames() / 6;
}
/** @param allow_horiz true to allow horizontal autoscroll, otherwise false.
* @param allow_vert true to allow vertical autoscroll, otherwise false.
* @param moving_left true if we are moving left, so we only want to autoscroll on the left of the canvas,
* otherwise false, so we only want to autoscroll on the right of the canvas.
* @param moving_up true if we are moving up, so we only want to autoscroll at the top of the canvas,
* otherwise false, so we only want to autoscroll at the bottom of the canvas.
*/
void
Editor::maybe_autoscroll (bool allow_horiz, bool allow_vert, bool moving_left, bool moving_up)
{
if (!Config->get_autoscroll_editor ()) {
return;
}
bool startit = false;
/* Work out the distance between the right hand edge of the trackview and the edge of
the monitor that it is on.
*/
Glib::RefPtr<Gdk::Window> gdk_window = get_window ();
Gdk::Rectangle window_rect;
gdk_window->get_frame_extents (window_rect);
Glib::RefPtr<Gdk::Screen> screen = get_screen ();
Gdk::Rectangle root_rect;
screen->get_root_window()->get_frame_extents (root_rect);
Gtk::Allocation editor_list = _the_notebook.get_allocation ();
framecnt_t distance = pixel_to_frame (root_rect.get_x() + root_rect.get_width() - window_rect.get_x() - window_rect.get_width());
if (_the_notebook.is_visible ()) {
distance += pixel_to_frame (editor_list.get_width());
}
/* Note whether we're fudging the autoscroll (see autoscroll_fudge_threshold) */
_autoscroll_fudging = (distance < autoscroll_fudge_threshold ());
double const ty = _drags->current_pointer_y() - get_trackview_group_vertical_offset ();
autoscroll_y = 0;
autoscroll_x = 0;
if (ty < canvas_timebars_vsize && moving_up && allow_vert) {
autoscroll_y = -1;
startit = true;
} else if (ty > _canvas_height && !moving_up && allow_vert) {
autoscroll_y = 1;
startit = true;
}
framepos_t rightmost_frame = leftmost_frame + current_page_frames();
if (_autoscroll_fudging) {
rightmost_frame -= autoscroll_fudge_threshold ();
}
if (_drags->current_pointer_frame() > rightmost_frame && allow_horiz) {
if (rightmost_frame < max_framepos && !moving_left) {
autoscroll_x = 1;
startit = true;
}
} else if (_drags->current_pointer_frame() < leftmost_frame && allow_horiz) {
if (leftmost_frame > 0 && moving_left) {
autoscroll_x = -1;
startit = true;
}
}
if (autoscroll_active && ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0))) {
stop_canvas_autoscroll ();
}
if (startit && autoscroll_timeout_tag < 0) {
start_canvas_autoscroll (autoscroll_x, autoscroll_y);
}
last_autoscroll_x = autoscroll_x;
last_autoscroll_y = autoscroll_y;
}
gint
Editor::_autoscroll_canvas (void *arg)
{
return ((Editor *) arg)->autoscroll_canvas ();
}
bool
Editor::autoscroll_canvas ()
{
framepos_t new_frame;
framepos_t limit = max_framepos - current_page_frames();
GdkEventMotion ev;
double new_pixel;
double target_pixel;
if (autoscroll_x_distance != 0) {
if (autoscroll_x > 0) {
autoscroll_x_distance = (_drags->current_pointer_frame() - (leftmost_frame + current_page_frames())) / 3;
if (_autoscroll_fudging) {
autoscroll_x_distance += autoscroll_fudge_threshold () / 3;
}
} else if (autoscroll_x < 0) {
autoscroll_x_distance = (leftmost_frame - _drags->current_pointer_frame()) / 3;
}
}
if (autoscroll_y_distance != 0) {
if (autoscroll_y > 0) {
autoscroll_y_distance = (_drags->current_pointer_y() - (get_trackview_group_vertical_offset() + _canvas_height)) / 3;
} else if (autoscroll_y < 0) {
autoscroll_y_distance = (vertical_adjustment.get_value () - _drags->current_pointer_y()) / 3;
}
}
if (autoscroll_x < 0) {
if (leftmost_frame < autoscroll_x_distance) {
new_frame = 0;
} else {
new_frame = leftmost_frame - autoscroll_x_distance;
}
} else if (autoscroll_x > 0) {
if (leftmost_frame > limit - autoscroll_x_distance) {
new_frame = limit;
} else {
new_frame = leftmost_frame + autoscroll_x_distance;
}
} else {
new_frame = leftmost_frame;
}
double vertical_pos = vertical_adjustment.get_value();
if (autoscroll_y < 0) {
if (vertical_pos < autoscroll_y_distance) {
new_pixel = 0;
} else {
new_pixel = vertical_pos - autoscroll_y_distance;
}
target_pixel = _drags->current_pointer_y() - autoscroll_y_distance;
target_pixel = max (target_pixel, 0.0);
} else if (autoscroll_y > 0) {
double top_of_bottom_of_canvas = full_canvas_height - _canvas_height;
if (vertical_pos > full_canvas_height - autoscroll_y_distance) {
new_pixel = full_canvas_height;
} else {
new_pixel = vertical_pos + autoscroll_y_distance;
}
new_pixel = min (top_of_bottom_of_canvas, new_pixel);
target_pixel = _drags->current_pointer_y() + autoscroll_y_distance;
/* don't move to the full canvas height because the item will be invisible
(its top edge will line up with the bottom of the visible canvas.
*/
target_pixel = min (target_pixel, full_canvas_height - 10);
} else {
target_pixel = _drags->current_pointer_y();
new_pixel = vertical_pos;
}
if ((new_frame == 0 || new_frame == limit) && (new_pixel == 0 || new_pixel == DBL_MAX)) {
/* we are done */
return false;
}
if (new_frame != leftmost_frame) {
reset_x_origin (new_frame);
}
vertical_adjustment.set_value (new_pixel);
/* fake an event. */
Glib::RefPtr<Gdk::Window> canvas_window = const_cast<Editor*>(this)->track_canvas->get_window();
gint x, y;
Gdk::ModifierType mask;
canvas_window->get_pointer (x, y, mask);
ev.type = GDK_MOTION_NOTIFY;
ev.state = Gdk::BUTTON1_MASK;
ev.x = x;
ev.y = y;
motion_handler (0, (GdkEvent*) &ev, true);
autoscroll_cnt++;
if (autoscroll_cnt == 1) {
/* connect the timeout so that we get called repeatedly */
autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
return false;
}
return true;
}
void
Editor::start_canvas_autoscroll (int dx, int dy)
{
if (!_session || autoscroll_active) {
return;
}
stop_canvas_autoscroll ();
autoscroll_active = true;
autoscroll_x = dx;
autoscroll_y = dy;
autoscroll_x_distance = (framepos_t) floor (current_page_frames()/50.0);
autoscroll_y_distance = fabs (dy * 5); /* pixels */
autoscroll_cnt = 0;
/* do it right now, which will start the repeated callbacks */
autoscroll_canvas ();
}
void
Editor::stop_canvas_autoscroll ()
{
if (autoscroll_timeout_tag >= 0) {
g_source_remove (autoscroll_timeout_tag);
autoscroll_timeout_tag = -1;
}
autoscroll_active = false;
}
bool
Editor::left_track_canvas (GdkEventCrossing */*ev*/)
{
DropDownKeys ();
within_track_canvas = false;
//cerr << "left track canvas\n";
set_entered_track (0);
set_entered_regionview (0);
reset_canvas_action_sensitivity (false);
return false;
}
bool
Editor::entered_track_canvas (GdkEventCrossing */*ev*/)
{
//cerr << "entered track canvas\n";
within_track_canvas = true;
reset_canvas_action_sensitivity (true);
return FALSE;
}
void
Editor::ensure_time_axis_view_is_visible (const TimeAxisView& tav)
{
double begin = tav.y_position();
double v = vertical_adjustment.get_value ();
if (begin < v || begin + tav.current_height() > v + _canvas_height - canvas_timebars_vsize) {
/* try to put the TimeAxisView roughly central */
if (begin >= _canvas_height/2.0) {
begin -= _canvas_height/2.0;
}
vertical_adjustment.set_value (begin);
}
}
void
Editor::tie_vertical_scrolling ()
{
scroll_canvas_vertically ();
/* this will do an immediate redraw */
controls_layout.get_vadjustment()->set_value (vertical_adjustment.get_value());
if (pending_visual_change.idle_handler_id < 0) {
_summary->set_overlays_dirty ();
}
}
void
Editor::set_horizontal_position (double p)
{
/* horizontal scrolling only */
double x1, y1, x2, y2, x_delta;
_master_group->get_bounds (x1, y1, x2, y2);
x_delta = - (x1 + p);
_master_group->move (x_delta, 0);
timebar_group->move (x_delta, 0);
time_line_group->move (x_delta, 0);
cursor_group->move (x_delta, 0);
leftmost_frame = (framepos_t) floor (p * frames_per_unit);
update_fixed_rulers ();
redisplay_tempo (true);
if (pending_visual_change.idle_handler_id < 0) {
_summary->set_overlays_dirty ();
}
update_video_timeline();
HorizontalPositionChanged (); /* EMIT SIGNAL */
#ifndef GTKOSX
if (!autoscroll_active && !_stationary_playhead) {
/* force rulers and canvas to move in lock step */
while (gtk_events_pending ()) {
gtk_main_iteration ();
}
}
#endif
}
void
Editor::scroll_canvas_vertically ()
{
/* vertical scrolling only */
double y_delta;
y_delta = last_trackview_group_vertical_offset - get_trackview_group_vertical_offset ();
_trackview_group->move (0, y_delta);
_background_group->move (0, y_delta);
for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
(*i)->clip_to_viewport ();
}
last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
/* required to keep the controls_layout in lock step with the canvas group */
update_canvas_now ();
}
void
Editor::color_handler()
{
playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
_verbose_cursor->set_color (ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get());
meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
videotl_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VideoBar.get();
videotl_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
cd_marker_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
cd_marker_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
refresh_location_display ();
/*
redisplay_tempo (true);
if (_session)
_session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
*/
}
void
Editor::flush_canvas ()
{
if (is_mapped()) {
update_canvas_now ();
// gdk_window_process_updates (GTK_LAYOUT(track_canvas->gobj())->bin_window, true);
}
}
void
Editor::update_canvas_now ()
{
/* GnomeCanvas has a bug whereby if its idle handler is not scheduled between
two calls to update_now, an assert will trip. This wrapper works around
that problem by only calling update_now if the assert will not trip.
I think the GC bug is due to the fact that its code will reset need_update
and need_redraw to FALSE without checking to see if an idle handler is scheduled.
If one is scheduled, GC should probably remove it.
*/
GnomeCanvas* c = track_canvas->gobj ();
if (c->need_update || c->need_redraw) {
track_canvas->update_now ();
}
}
double
Editor::horizontal_position () const
{
return frame_to_unit (leftmost_frame);
}
void
Editor::set_canvas_cursor (Gdk::Cursor* cursor, bool save)
{
if (save) {
current_canvas_cursor = cursor;
}
Glib::RefPtr<Gdk::Window> win = track_canvas->get_window();
if (win) {
track_canvas->get_window()->set_cursor (*cursor);
}
}
bool
Editor::track_canvas_key_press (GdkEventKey*)
{
/* XXX: event does not report the modifier key pressed down, AFAICS, so use the Keyboard object instead */
if (mouse_mode == Editing::MouseZoom && Keyboard::the_keyboard().key_is_down (GDK_Control_L)) {
set_canvas_cursor (_cursors->zoom_out, true);
}
return false;
}
bool
Editor::track_canvas_key_release (GdkEventKey*)
{
if (mouse_mode == Editing::MouseZoom && !Keyboard::the_keyboard().key_is_down (GDK_Control_L)) {
set_canvas_cursor (_cursors->zoom_in, true);
}
return false;
}
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