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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_ui.h"
#include "editor.h"
#include "global_signals.h"
#include "waveview.h"
#include "simplerect.h"
#include "simpleline.h"
#include "imageframe.h"
#include "waveview_p.h"
#include "simplerect_p.h"
#include "simpleline_p.h"
#include "imageframe_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_routes.h"
#include "editor_summary.h"
#include "keyboard.h"
#include "editor_cursors.h"
#include "mouse_cursors.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
Large nasty commit in the form of a 5000 line patch chock-full of completely unecessary changes. (Sorry, doing a "sprint" based thing, this is the end of the first one) Achieved MIDI track and bus creation, associated Jack port and diskstream creation, and minimal GUI stuff for creating them. Should be set to start work on actually recording and playing midi to/from disk now. Relevant (significant) changes: - Creation of a Buffer class. Base class is type agnostic so things can point to a buffer but not care what kind it is (otherwise it'd be a template). Derived into AudioBuffer and MidiBuffer, with a type tag because checking type is necessary in parts of the code where dynamic_cast wouldn't be wise. Originally I considered this a hack, but passing around a type proved to be a very good solution to all the other problems (below). There is a 1:1 mapping between jack port data types and ardour Buffer types (with a conversion function), but that's easily removed if it ever becomes necessary. Having the type scoped in the Buffer class is maybe not the best spot for it, but whatever (this is proof of concept kinda stuff right now...) - IO now has a "default" port type (passed to the constructor and stored as a member), used by ensure_io (and similar) to create n ports. IO::register_***_port has a type argument that defaults to the default type if not passed. Rationale: previous IO API is identical, no changes needed to existing code, but path is paved for multiple port types in one IO, which we will need for eg synth plugin inserts, among other things. This is not quite ideal (best would be to only have the two port register functions and have them take a type), but the alternative is a lot of work (namely destroying the 'ensure' functions and everything that uses them) for very little gain. (I am convinced after quite a few tries at the whiteboard that subclassing IO in any way is not a feasible option, look at it's inheritance diagram in Doxygen and you can see why) - AudioEngine::register_audio_input_port is now register_input_port and takes a type argument. Ditto for output. - (Most significant change) AudioDiskstream abstracted into Distream, and sibling MidiDiskstream created. Very much still a work in progress, but Diskstream is there to switch references over to (most already are), which is the important part. It is still unclear what the MIDI diskstream's relation to channels is, but I'm pretty sure they will be single channel only (so SMF Type 0) since noone can come up with a reason otherwise. - MidiTrack creation. Same thing as AudioTrack but with a different default type basically. No big deal here. - Random cleanups and variable renamings etc. because I have OCD and can't help myself. :) Known broken: Loading of sessions containing MIDI tracks. git-svn-id: svn://localhost/ardour2/branches/midi@641 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-06-26 12:01:34 -04:00
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);
// Glib::wrap_register(gnome_canvas_imageframe_get_type(), &Gnome::Canvas::ImageFrame_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) Gnome::Canvas::ImageFrame::get_type();
}
void
Editor::initialize_canvas ()
{
if (getenv ("ARDOUR_NON_AA_CANVAS")) {
track_canvas = new ArdourCanvas::Canvas ();
} else {
track_canvas = new ArdourCanvas::CanvasAA ();
}
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>());
/* stuff for the verbose canvas cursor */
Pango::FontDescription* font = get_font_for_style (N_("VerboseCanvasCursor"));
verbose_canvas_cursor = new ArdourCanvas::NoEventText (*track_canvas->root());
verbose_canvas_cursor->property_font_desc() = *font;
verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
delete font;
verbose_cursor_visible = false;
/* 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;
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);
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));
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));
track_canvas->signal_enter_notify_event().connect (sigc::mem_fun(*this, &Editor::entered_track_canvas));
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 ()
{
gint w = edit_controls_vbox.get_width();
if (_group_tabs->is_mapped()) {
w += _group_tabs->get_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)
{
drop_paths_part_two (paths, frame, ypos);
return false;
}
void
Editor::drop_paths_part_two (const vector<string>& paths, framepos_t frame, double ypos)
{
RouteTimeAxisView* tv;
std::pair<TimeAxisView*, int> const tvp = trackview_by_y_position (ypos);
if (tvp.first == 0) {
/* drop onto canvas background: create new tracks */
frame = 0;
if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
do_import (paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack, SrcBest, frame);
} else {
do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
}
} else if ((tv = dynamic_cast<RouteTimeAxisView*> (tvp.first)) != 0) {
/* check that its an audio track, not a bus */
if (tv->track()) {
/* select the track, then embed/import */
selection->set (tv);
if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
do_import (paths, Editing::ImportSerializeFiles, Editing::ImportToTrack, SrcBest, frame);
} else {
do_embed (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);
#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));
#else
drop_paths_part_two (paths, frame, cy);
#endif
}
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*/)
{
_drags->end_grab (0);
}
void
Editor::maybe_autoscroll (bool allow_horiz, bool allow_vert)
{
framepos_t rightmost_frame = leftmost_frame + current_page_frames();
bool startit = false;
double const ty = _drags->current_pointer_y() - get_trackview_group_vertical_offset ();
autoscroll_y = 0;
autoscroll_x = 0;
if (ty < canvas_timebars_vsize && allow_vert) {
autoscroll_y = -1;
startit = true;
} else if (ty > _canvas_height && allow_vert) {
autoscroll_y = 1;
startit = true;
}
if (_drags->current_pointer_frame() > rightmost_frame && allow_horiz) {
if (rightmost_frame < max_framepos) {
autoscroll_x = 1;
startit = true;
}
} else if (_drags->current_pointer_frame() < leftmost_frame && allow_horiz) {
if (leftmost_frame > 0) {
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;
} 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 ();
set_entered_track (0);
set_entered_regionview (0);
reset_canvas_action_sensitivity (false);
return false;
}
bool
Editor::entered_track_canvas (GdkEventCrossing */*ev*/)
{
reset_canvas_action_sensitivity (true);
return FALSE;
}
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 ();
}
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_canvas_cursor->property_fill_color_rgba() = 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();
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;
}
if (is_drawable()) {
track_canvas->get_window()->set_cursor (*cursor);
}
}
bool
Editor::track_canvas_key_press (GdkEventKey* event)
{
/* 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* event)
{
if (mouse_mode == Editing::MouseZoom && !Keyboard::the_keyboard().key_is_down (GDK_Control_L)) {
set_canvas_cursor (_cursors->zoom_in, true);
}
return false;
}