729 lines
23 KiB
C++
729 lines
23 KiB
C++
/*
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Copyright (C) 2005 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <libgnomecanvasmm/init.h>
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#include <jack/types.h>
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#include <gtkmm2ext/utils.h>
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#include <ardour/audioregion.h>
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#include "ardour_ui.h"
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#include "editor.h"
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#include "waveview.h"
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#include "simplerect.h"
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#include "simpleline.h"
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#include "imageframe.h"
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#include "waveview_p.h"
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#include "simplerect_p.h"
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#include "simpleline_p.h"
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#include "imageframe_p.h"
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#include "canvas_impl.h"
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#include "editing.h"
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#include "rgb_macros.h"
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#include "utils.h"
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#include "time_axis_view.h"
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#include "audio_time_axis.h"
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#include "i18n.h"
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using namespace std;
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using namespace sigc;
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using namespace ARDOUR;
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using namespace PBD;
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using namespace Gtk;
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using namespace Glib;
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using namespace Gtkmm2ext;
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using namespace Editing;
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/* XXX this is a hack. it ought to be the maximum value of an nframes_t */
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const double max_canvas_coordinate = (double) JACK_MAX_FRAMES;
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extern "C"
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{
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GType gnome_canvas_simpleline_get_type(void);
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GType gnome_canvas_simplerect_get_type(void);
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GType gnome_canvas_waveview_get_type(void);
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GType gnome_canvas_imageframe_get_type(void);
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}
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static void ardour_canvas_type_init()
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{
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// Map gtypes to gtkmm wrapper-creation functions:
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Glib::wrap_register(gnome_canvas_simpleline_get_type(), &Gnome::Canvas::SimpleLine_Class::wrap_new);
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Glib::wrap_register(gnome_canvas_simplerect_get_type(), &Gnome::Canvas::SimpleRect_Class::wrap_new);
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Glib::wrap_register(gnome_canvas_waveview_get_type(), &Gnome::Canvas::WaveView_Class::wrap_new);
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Glib::wrap_register(gnome_canvas_imageframe_get_type(), &Gnome::Canvas::ImageFrame_Class::wrap_new);
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// Register the gtkmm gtypes:
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(void) Gnome::Canvas::WaveView::get_type();
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(void) Gnome::Canvas::SimpleLine::get_type();
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(void) Gnome::Canvas::SimpleRect::get_type();
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(void) Gnome::Canvas::ImageFrame::get_type();
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}
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void
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Editor::initialize_canvas ()
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{
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ArdourCanvas::init ();
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ardour_canvas_type_init ();
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/* don't try to center the canvas */
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track_canvas.set_center_scroll_region (false);
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track_canvas.set_dither (Gdk::RGB_DITHER_NONE);
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track_canvas.signal_event().connect (bind (mem_fun (*this, &Editor::track_canvas_event), (ArdourCanvas::Item*) 0));
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track_canvas.set_name ("EditorMainCanvas");
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track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
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track_canvas.signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
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track_canvas.set_flags (CAN_FOCUS);
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/* set up drag-n-drop */
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vector<TargetEntry> target_table;
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// Drag-N-Drop from the region list can generate this target
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target_table.push_back (TargetEntry ("regions"));
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target_table.push_back (TargetEntry ("text/plain"));
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target_table.push_back (TargetEntry ("text/uri-list"));
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target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
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track_canvas.drag_dest_set (target_table);
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track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
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/* stuff for the verbose canvas cursor */
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Pango::FontDescription font = get_font_for_style (N_("VerboseCanvasCursor"));
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verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas.root());
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verbose_canvas_cursor->property_font_desc() = font;
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verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
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verbose_canvas_cursor->property_fill_color_rgba() = color_map[cVerboseCanvasCursor];
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verbose_cursor_visible = false;
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/* a group to hold time (measure) lines */
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time_line_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
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cursor_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
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time_canvas.set_name ("EditorTimeCanvas");
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time_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
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time_canvas.set_flags (CAN_FOCUS);
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time_canvas.set_center_scroll_region (false);
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time_canvas.set_dither (Gdk::RGB_DITHER_NONE);
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meter_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
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tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height);
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marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 2.0);
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range_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 3.0);
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transport_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 4.0);
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tempo_bar = new ArdourCanvas::SimpleRect (*tempo_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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tempo_bar->property_fill_color_rgba() = color_map[cTempoBar];
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tempo_bar->property_outline_pixels() = 0;
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meter_bar = new ArdourCanvas::SimpleRect (*meter_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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meter_bar->property_fill_color_rgba() = color_map[cMeterBar];
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meter_bar->property_outline_pixels() = 0;
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marker_bar = new ArdourCanvas::SimpleRect (*marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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marker_bar->property_fill_color_rgba() = color_map[cMarkerBar];
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marker_bar->property_outline_pixels() = 0;
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range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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range_marker_bar->property_fill_color_rgba() = color_map[cRangeMarkerBar];
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range_marker_bar->property_outline_pixels() = 0;
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transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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transport_marker_bar->property_fill_color_rgba() = color_map[cTransportMarkerBar];
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transport_marker_bar->property_outline_pixels() = 0;
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range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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range_bar_drag_rect->property_fill_color_rgba() = color_map[cRangeDragBarRectFill];
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range_bar_drag_rect->property_outline_color_rgba() = color_map[cRangeDragBarRect];
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range_bar_drag_rect->property_outline_pixels() = 0;
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range_bar_drag_rect->hide ();
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transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
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transport_bar_drag_rect ->property_fill_color_rgba() = color_map[cTransportDragRectFill];
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transport_bar_drag_rect->property_outline_color_rgba() = color_map[cTransportDragRect];
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transport_bar_drag_rect->property_outline_pixels() = 0;
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transport_bar_drag_rect->hide ();
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marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
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marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
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marker_drag_line = new ArdourCanvas::Line (*track_canvas.root());
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marker_drag_line->property_width_pixels() = 1;
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marker_drag_line->property_fill_color_rgba() = color_map[cMarkerDragLine];
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marker_drag_line->property_points() = marker_drag_line_points;
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marker_drag_line->hide();
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range_marker_drag_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
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range_marker_drag_rect->property_fill_color_rgba() = color_map[cRangeDragRectFill];
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range_marker_drag_rect->property_outline_color_rgba() = color_map[cRangeDragRect];
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range_marker_drag_rect->hide ();
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transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
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transport_loop_range_rect->property_fill_color_rgba() = color_map[cTransportLoopRectFill];
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transport_loop_range_rect->property_outline_color_rgba() = color_map[cTransportLoopRect];
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transport_loop_range_rect->property_outline_pixels() = 1;
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transport_loop_range_rect->hide();
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transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
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transport_punch_range_rect->property_fill_color_rgba() = color_map[cTransportPunchRectFill];
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transport_punch_range_rect->property_outline_color_rgba() = color_map[cTransportPunchRect];
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transport_punch_range_rect->property_outline_pixels() = 0;
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transport_punch_range_rect->hide();
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transport_loop_range_rect->lower_to_bottom (); // loop on the bottom
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transport_punchin_line = new ArdourCanvas::SimpleLine (*time_line_group);
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transport_punchin_line->property_x1() = 0.0;
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transport_punchin_line->property_y1() = 0.0;
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transport_punchin_line->property_x2() = 0.0;
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transport_punchin_line->property_y2() = 0.0;
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transport_punchin_line->property_color_rgba() = color_map[cPunchInLine];
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transport_punchin_line->hide ();
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transport_punchout_line = new ArdourCanvas::SimpleLine (*time_line_group);
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transport_punchout_line->property_x1() = 0.0;
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transport_punchout_line->property_y1() = 0.0;
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transport_punchout_line->property_x2() = 0.0;
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transport_punchout_line->property_y2() = 0.0;
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transport_punchout_line->property_color_rgba() = color_map[cPunchOutLine];
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transport_punchout_line->hide();
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// used to show zoom mode active zooming
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zoom_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
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zoom_rect->property_fill_color_rgba() = color_map[cZoomRectFill];
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zoom_rect->property_outline_color_rgba() = color_map[cZoomRect];
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zoom_rect->property_outline_pixels() = 1;
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zoom_rect->hide();
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zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
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// used as rubberband rect
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rubberband_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
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rubberband_rect->property_outline_color_rgba() = color_map[cRubberBandRect];
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rubberband_rect->property_fill_color_rgba() = (guint32) color_map[cRubberBandRectFill];
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rubberband_rect->property_outline_pixels() = 1;
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rubberband_rect->hide();
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tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
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meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
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marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
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range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
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transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
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/* separator lines */
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tempo_line = new ArdourCanvas::SimpleLine (*tempo_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
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tempo_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
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meter_line = new ArdourCanvas::SimpleLine (*meter_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
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meter_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
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marker_line = new ArdourCanvas::SimpleLine (*marker_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
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marker_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
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range_marker_line = new ArdourCanvas::SimpleLine (*range_marker_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
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range_marker_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
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transport_marker_line = new ArdourCanvas::SimpleLine (*transport_marker_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
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transport_marker_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
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ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_loop_range_view), false));
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ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_punch_range_view), false));
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double time_height = timebar_height * 5;
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double time_width = FLT_MAX/frames_per_unit;
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time_canvas.set_scroll_region(0.0, 0.0, time_width, time_height);
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if (!color_map[cEditCursor]) {
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warning << _("edit cursor color not defined, check your ardour.colors file!") << endmsg;
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color_map[cEditCursor] = RGBA_TO_UINT (30,30,30,255);
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}
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if (!color_map[cPlayHead]) {
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warning << _("playhead color not defined, check your ardour.colors file!") << endmsg;
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color_map[cPlayHead] = RGBA_TO_UINT (0,0,0,255);
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}
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edit_cursor = new Cursor (*this, &Editor::canvas_edit_cursor_event);
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edit_cursor->canvas_item.property_fill_color_rgba() = color_map[cEditCursor];
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playhead_cursor = new Cursor (*this, &Editor::canvas_playhead_cursor_event);
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playhead_cursor->canvas_item.property_fill_color_rgba() = color_map[cPlayHead];
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initial_ruler_update_required = true;
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track_canvas.signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
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}
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void
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Editor::track_canvas_allocate (Gtk::Allocation alloc)
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{
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canvas_allocation = alloc;
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if (!initial_ruler_update_required) {
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if (!canvas_idle_queued) {
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/* call this first so that we do stuff before any pending redraw */
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Glib::signal_idle().connect (mem_fun (*this, &Editor::track_canvas_size_allocated), false);
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canvas_idle_queued = true;
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}
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return;
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}
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initial_ruler_update_required = false;
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track_canvas_size_allocated ();
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}
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bool
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Editor::track_canvas_size_allocated ()
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{
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if (canvas_idle_queued) {
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canvas_idle_queued = false;
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}
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canvas_width = canvas_allocation.get_width();
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canvas_height = canvas_allocation.get_height();
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full_canvas_height = canvas_height;
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if (session) {
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TrackViewList::iterator i;
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double height = 0;
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for (i = track_views.begin(); i != track_views.end(); ++i) {
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if ((*i)->control_parent) {
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height += (*i)->effective_height;
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}
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}
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full_canvas_height = height;
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}
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zoom_range_clock.set ((nframes_t) floor ((canvas_width * frames_per_unit)));
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edit_cursor->set_position (edit_cursor->current_frame);
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playhead_cursor->set_position (playhead_cursor->current_frame);
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reset_hscrollbar_stepping ();
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reset_scrolling_region ();
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if (edit_cursor) edit_cursor->set_length (canvas_height);
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if (playhead_cursor) playhead_cursor->set_length (canvas_height);
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if (marker_drag_line) {
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marker_drag_line_points.back().set_y(canvas_height);
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marker_drag_line->property_points() = marker_drag_line_points;
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}
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if (range_marker_drag_rect) {
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range_marker_drag_rect->property_y1() = 0.0;
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range_marker_drag_rect->property_y2() = canvas_height;
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}
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if (transport_loop_range_rect) {
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transport_loop_range_rect->property_y1() = 0.0;
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transport_loop_range_rect->property_y2() = canvas_height;
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}
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if (transport_punch_range_rect) {
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transport_punch_range_rect->property_y1() = 0.0;
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transport_punch_range_rect->property_y2() = canvas_height;
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}
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if (transport_punchin_line) {
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transport_punchin_line->property_y1() = 0.0;
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transport_punchin_line->property_y2() = canvas_height;
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}
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if (transport_punchout_line) {
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transport_punchout_line->property_y1() = 0.0;
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transport_punchout_line->property_y2() = canvas_height;
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}
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update_fixed_rulers();
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redisplay_tempo (true);
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Resized (); /* EMIT_SIGNAL */
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return false;
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}
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void
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Editor::reset_scrolling_region (Gtk::Allocation* alloc)
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{
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TreeModel::Children rows = route_display_model->children();
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TreeModel::Children::iterator i;
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double pos;
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for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
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TimeAxisView *tv = (*i)[route_display_columns.tv];
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if (tv != 0 && !tv->hidden()) {
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pos += tv->effective_height;
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}
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}
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double last_canvas_unit = last_canvas_frame / frames_per_unit;
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track_canvas.set_scroll_region (0.0, 0.0, max (last_canvas_unit, canvas_width), pos);
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// XXX what is the correct height value for the time canvas ? this overstates it
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time_canvas.set_scroll_region ( 0.0, 0.0, max (last_canvas_unit, canvas_width), canvas_height);
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controls_layout.queue_resize();
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}
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void
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Editor::controls_layout_size_request (Requisition* req)
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{
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TreeModel::Children rows = route_display_model->children();
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TreeModel::Children::iterator i;
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double pos;
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for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
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TimeAxisView *tv = (*i)[route_display_columns.tv];
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|
if (tv != 0) {
|
|
pos += tv->effective_height;
|
|
}
|
|
}
|
|
|
|
RefPtr<Gdk::Screen> screen = get_screen();
|
|
|
|
if (!screen) {
|
|
screen = Gdk::Screen::get_default();
|
|
}
|
|
|
|
/* never let the width of the controls area shrink horizontally */
|
|
|
|
edit_controls_vbox.check_resize();
|
|
|
|
req->width = max (edit_controls_vbox.get_width(), controls_layout.get_width());
|
|
|
|
/* don't get too big. the fudge factors here are just guesses */
|
|
|
|
req->width = min (req->width, screen->get_width() - 300);
|
|
req->height = min ((gint) pos, (screen->get_height() - 400));
|
|
|
|
/* this one is important: it determines how big the layout thinks it really is, as
|
|
opposed to what it displays on the screen
|
|
*/
|
|
|
|
controls_layout.set_size (req->width, (gint) pos);
|
|
}
|
|
|
|
bool
|
|
Editor::track_canvas_map_handler (GdkEventAny* ev)
|
|
{
|
|
track_canvas.get_window()->set_cursor (*current_canvas_cursor);
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
Editor::time_canvas_map_handler (GdkEventAny* ev)
|
|
{
|
|
time_canvas.get_window()->set_cursor (*timebar_cursor);
|
|
return false;
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
void
|
|
Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
|
|
int x, int y,
|
|
const SelectionData& data,
|
|
guint info, guint time)
|
|
{
|
|
TimeAxisView* tvp;
|
|
AudioTimeAxisView* tv;
|
|
double cy;
|
|
vector<ustring> paths;
|
|
string spath;
|
|
GdkEvent ev;
|
|
nframes_t frame;
|
|
|
|
if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
|
|
goto out;
|
|
}
|
|
|
|
/* D-n-D coordinates are window-relative, so convert to "world" coordinates
|
|
*/
|
|
|
|
double wx;
|
|
double wy;
|
|
|
|
track_canvas.window_to_world (x, y, wx, wy);
|
|
wx += horizontal_adjustment.get_value();
|
|
wy += vertical_adjustment.get_value();
|
|
|
|
ev.type = GDK_BUTTON_RELEASE;
|
|
ev.button.x = wx;
|
|
ev.button.y = wy;
|
|
|
|
frame = event_frame (&ev, 0, &cy);
|
|
|
|
snap_to (frame);
|
|
|
|
if ((tvp = trackview_by_y_position (cy)) == 0) {
|
|
|
|
/* drop onto canvas background: create new tracks */
|
|
|
|
nframes_t pos = 0;
|
|
do_embed (paths, false, ImportAsTrack, 0, pos, false);
|
|
|
|
} else if ((tv = dynamic_cast<AudioTimeAxisView*>(tvp)) != 0) {
|
|
|
|
/* check that its an audio track, not a bus */
|
|
|
|
if (tv->get_diskstream()) {
|
|
do_embed (paths, false, ImportToTrack, tv->audio_track(), frame, true);
|
|
}
|
|
}
|
|
|
|
out:
|
|
context->drag_finish (true, false, time);
|
|
}
|
|
|
|
void
|
|
Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
|
|
int x, int y,
|
|
const SelectionData& data,
|
|
guint info, guint time)
|
|
{
|
|
const SerializedObjectPointers<boost::shared_ptr<Region> >* sr =
|
|
reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Region> > *> (data.get_data());
|
|
|
|
for (uint32_t i = 0; i < sr->cnt; ++i) {
|
|
|
|
boost::shared_ptr<Region> r = sr->data[i];
|
|
boost::shared_ptr<AudioRegion> ar;
|
|
|
|
if ((ar = boost::dynamic_pointer_cast<AudioRegion>(r)) != 0) {
|
|
insert_region_list_drag (ar, x, y);
|
|
}
|
|
}
|
|
|
|
context->drag_finish (true, false, time);
|
|
}
|
|
|
|
void
|
|
Editor::maybe_autoscroll (GdkEvent* event)
|
|
{
|
|
nframes_t rightmost_frame = leftmost_frame + current_page_frames();
|
|
nframes_t frame = drag_info.current_pointer_frame;
|
|
bool startit = false;
|
|
|
|
static int last_autoscroll_direction = 0;
|
|
|
|
if (frame > rightmost_frame) {
|
|
|
|
if (rightmost_frame < max_frames) {
|
|
autoscroll_direction = 1;
|
|
startit = true;
|
|
}
|
|
|
|
} else if (frame < leftmost_frame) {
|
|
|
|
if (leftmost_frame > 0) {
|
|
autoscroll_direction = -1;
|
|
startit = true;
|
|
}
|
|
|
|
} else {
|
|
|
|
if (drag_info.last_pointer_frame > drag_info.current_pointer_frame) {
|
|
autoscroll_direction = -1;
|
|
} else {
|
|
autoscroll_direction = 1;
|
|
}
|
|
}
|
|
|
|
|
|
if ((autoscroll_direction != last_autoscroll_direction) || (leftmost_frame < frame < rightmost_frame)) {
|
|
stop_canvas_autoscroll ();
|
|
}
|
|
|
|
if (startit && autoscroll_timeout_tag < 0) {
|
|
start_canvas_autoscroll (autoscroll_direction);
|
|
}
|
|
|
|
last_autoscroll_direction = autoscroll_direction;
|
|
}
|
|
|
|
gint
|
|
Editor::_autoscroll_canvas (void *arg)
|
|
{
|
|
return ((Editor *) arg)->autoscroll_canvas ();
|
|
}
|
|
|
|
bool
|
|
Editor::autoscroll_canvas ()
|
|
{
|
|
nframes_t new_frame;
|
|
nframes_t limit = max_frames - current_page_frames();
|
|
GdkEventMotion ev;
|
|
nframes_t target_frame;
|
|
|
|
if (autoscroll_direction < 0) {
|
|
if (leftmost_frame < autoscroll_distance) {
|
|
new_frame = 0;
|
|
} else {
|
|
new_frame = leftmost_frame - autoscroll_distance;
|
|
}
|
|
target_frame = drag_info.current_pointer_frame - autoscroll_distance;
|
|
} else {
|
|
if (leftmost_frame > limit - autoscroll_distance) {
|
|
new_frame = limit;
|
|
} else {
|
|
new_frame = leftmost_frame + autoscroll_distance;
|
|
}
|
|
target_frame = drag_info.current_pointer_frame + autoscroll_distance;
|
|
}
|
|
|
|
/* now fake a motion event to get the object that is being dragged to move too */
|
|
|
|
ev.type = GDK_MOTION_NOTIFY;
|
|
ev.state &= Gdk::BUTTON1_MASK;
|
|
ev.x = frame_to_unit (target_frame);
|
|
ev.y = drag_info.current_pointer_y;
|
|
motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);
|
|
|
|
if (new_frame == 0 || new_frame == limit) {
|
|
/* we are done */
|
|
return false;
|
|
}
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
if (new_frame != leftmost_frame) {
|
|
reset_x_origin (new_frame);
|
|
}
|
|
|
|
if (autoscroll_cnt == 50) { /* 0.5 seconds */
|
|
|
|
/* after about a while, speed up a bit by changing the timeout interval */
|
|
|
|
autoscroll_distance = (nframes_t) floor (current_page_frames()/30.0f);
|
|
|
|
} else if (autoscroll_cnt == 150) { /* 1.0 seconds */
|
|
|
|
autoscroll_distance = (nframes_t) floor (current_page_frames()/20.0f);
|
|
|
|
} else if (autoscroll_cnt == 300) { /* 1.5 seconds */
|
|
|
|
/* after about another while, speed up by increasing the shift per callback */
|
|
|
|
autoscroll_distance = (nframes_t) floor (current_page_frames()/10.0f);
|
|
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
Editor::start_canvas_autoscroll (int dir)
|
|
{
|
|
if (!session || autoscroll_active) {
|
|
return;
|
|
}
|
|
|
|
stop_canvas_autoscroll ();
|
|
|
|
autoscroll_active = true;
|
|
autoscroll_direction = dir;
|
|
autoscroll_distance = (nframes_t) floor (current_page_frames()/50.0);
|
|
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;
|
|
}
|
|
|
|
gint
|
|
Editor::left_track_canvas (GdkEventCrossing *ev)
|
|
{
|
|
set_entered_track (0);
|
|
set_entered_regionview (0);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
void
|
|
Editor::canvas_horizontally_scrolled ()
|
|
{
|
|
/* this is the core function that controls horizontal scrolling of the canvas. it is called
|
|
whenever the horizontal_adjustment emits its "value_changed" signal. it typically executes in an
|
|
idle handler, which is important because tempo_map_changed() should issue redraws immediately
|
|
and not defer them to an idle handler.
|
|
*/
|
|
|
|
leftmost_frame = (nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
|
|
nframes_t rightmost_frame = leftmost_frame + current_page_frames ();
|
|
|
|
if (rightmost_frame > last_canvas_frame) {
|
|
last_canvas_frame = rightmost_frame;
|
|
reset_scrolling_region ();
|
|
}
|
|
|
|
update_fixed_rulers ();
|
|
|
|
redisplay_tempo (!_dragging_hscrollbar);
|
|
}
|
|
|