1048 lines
26 KiB
C++
1048 lines
26 KiB
C++
/*
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Copyright (C) 2003 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 <pbd/error.h>
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#include <pbd/stacktrace.h>
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#include <ardour/types.h>
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#include <ardour/ardour.h>
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#include <gtkmm2ext/utils.h>
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#include "public_editor.h"
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#include "time_axis_view_item.h"
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#include "time_axis_view.h"
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#include "simplerect.h"
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#include "utils.h"
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#include "canvas_impl.h"
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#include "rgb_macros.h"
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#include "i18n.h"
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using namespace std;
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using namespace Editing;
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using namespace Glib;
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using namespace PBD;
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//------------------------------------------------------------------------------
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/** Initialize const static memeber data */
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Pango::FontDescription TimeAxisViewItem::NAME_FONT;
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bool TimeAxisViewItem::have_name_font = false;
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const double TimeAxisViewItem::NAME_X_OFFSET = 15.0;
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const double TimeAxisViewItem::GRAB_HANDLE_LENGTH = 6 ;
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double TimeAxisViewItem::NAME_Y_OFFSET;
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double TimeAxisViewItem::NAME_HIGHLIGHT_SIZE;
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double TimeAxisViewItem::NAME_HIGHLIGHT_THRESH;
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//---------------------------------------------------------------------------------------//
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// Constructor / Desctructor
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/**
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* Constructs a new TimeAxisViewItem.
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*
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* @param it_name the unique name/Id of this item
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* @param parant the parent canvas group
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* @param tv the TimeAxisView we are going to be added to
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* @param spu samples per unit
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* @param base_color
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* @param start the start point of this item
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* @param duration the duration of this item
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*/
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TimeAxisViewItem::TimeAxisViewItem(const string & it_name, ArdourCanvas::Group& parent, TimeAxisView& tv, double spu, Gdk::Color& base_color,
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nframes_t start, nframes_t duration,
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Visibility vis)
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: trackview (tv)
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{
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if (!have_name_font) {
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/* first constructed item sets up font info */
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NAME_FONT = get_font_for_style (N_("TimeAxisViewItemName"));
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Gtk::Window win;
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Gtk::Label foo;
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win.add (foo);
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Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
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int width;
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int height;
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layout->set_font_description (NAME_FONT);
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Gtkmm2ext::get_ink_pixel_size (layout, width, height);
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NAME_Y_OFFSET = height + 6;
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NAME_HIGHLIGHT_SIZE = height + 6;
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NAME_HIGHLIGHT_THRESH = NAME_HIGHLIGHT_SIZE * 2;
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have_name_font = true;
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}
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group = new ArdourCanvas::Group (parent);
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init (it_name, spu, base_color, start, duration, vis);
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}
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TimeAxisViewItem::TimeAxisViewItem (const TimeAxisViewItem& other)
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: trackview (other.trackview)
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{
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Gdk::Color c;
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int r,g,b,a;
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UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
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c.set_rgb_p (r/255.0, g/255.0, b/255.0);
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/* share the other's parent, but still create a new group */
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Gnome::Canvas::Group* parent = other.group->property_parent();
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group = new ArdourCanvas::Group (*parent);
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init (other.item_name, other.samples_per_unit, c, other.frame_position, other.item_duration, other.visibility);
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}
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void
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TimeAxisViewItem::init (const string& it_name, double spu, Gdk::Color& base_color, nframes_t start, nframes_t duration, Visibility vis)
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{
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item_name = it_name ;
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name_text_width = ::pixel_width (it_name, NAME_FONT);
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last_name_text_width = 0;
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samples_per_unit = spu ;
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should_show_selection = true;
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frame_position = start ;
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item_duration = duration ;
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name_connected = false;
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fill_opacity = 60;
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position_locked = false ;
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max_item_duration = ARDOUR::max_frames;
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min_item_duration = 0 ;
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show_vestigial = true;
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visibility = vis;
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_sensitive = true;
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if (duration == 0) {
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warning << "Time Axis Item Duration == 0" << endl ;
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}
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vestigial_frame = new ArdourCanvas::SimpleRect (*group);
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vestigial_frame->property_x1() = (double) 0.0;
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vestigial_frame->property_y1() = (double) 1.0;
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vestigial_frame->property_x2() = 2.0;
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vestigial_frame->property_y2() = (double) trackview.height;
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vestigial_frame->property_outline_color_rgba() = color_map[cVestigialFrameOutline];
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vestigial_frame->property_fill_color_rgba() = color_map[cVestigialFrameFill];
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vestigial_frame->hide ();
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if (visibility & ShowFrame) {
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frame = new ArdourCanvas::SimpleRect (*group);
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frame->property_x1() = (double) 0.0;
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frame->property_y1() = (double) 1.0;
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frame->property_x2() = (double) trackview.editor.frame_to_pixel(duration);
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frame->property_y2() = (double) trackview.height;
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frame->property_outline_color_rgba() = color_map[cTimeAxisFrameOutline];
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frame->property_fill_color_rgba() = color_map[cTimeAxisFrameFill];
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/* by default draw all 4 edges */
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uint32_t outline_what = 0x1|0x2|0x4|0x8;
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if (visibility & HideFrameLeft) {
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outline_what &= ~(0x1);
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}
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if (visibility & HideFrameRight) {
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outline_what &= ~(0x2);
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}
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if (visibility & HideFrameTB) {
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outline_what &= ~(0x4 | 0x8);
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}
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frame->property_outline_what() = outline_what;
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} else {
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frame = 0;
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}
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if (visibility & ShowNameHighlight) {
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name_highlight = new ArdourCanvas::SimpleRect (*group);
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if (visibility & FullWidthNameHighlight) {
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name_highlight->property_x1() = (double) 0.0;
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name_highlight->property_x2() = (double) (trackview.editor.frame_to_pixel(item_duration));
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} else {
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name_highlight->property_x1() = (double) 1.0;
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name_highlight->property_x2() = (double) (trackview.editor.frame_to_pixel(item_duration)) - 1;
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}
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name_highlight->property_y1() = (double) (trackview.height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE);
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name_highlight->property_y2() = (double) (trackview.height - 1);
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name_highlight->property_outline_color_rgba() = color_map[cNameHighlightFill];
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name_highlight->property_fill_color_rgba() = color_map[cNameHighlightOutline];
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name_highlight->set_data ("timeaxisviewitem", this);
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} else {
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name_highlight = 0;
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}
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if (visibility & ShowNameText) {
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name_text = new ArdourCanvas::Text (*group);
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name_text->property_x() = (double) TimeAxisViewItem::NAME_X_OFFSET;
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/* trackview.height is the bottom of the trackview. subtract 1 to get back to the bottom of the highlight,
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then NAME_Y_OFFSET to position the text in the vertical center of the highlight
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*/
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name_text->property_y() = (double) trackview.height - 1.0 - TimeAxisViewItem::NAME_Y_OFFSET;
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name_text->property_font_desc() = NAME_FONT;
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name_text->property_anchor() = Gtk::ANCHOR_NW;
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name_text->set_data ("timeaxisviewitem", this);
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} else {
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name_text = 0;
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}
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/* create our grab handles used for trimming/duration etc */
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if (visibility & ShowHandles) {
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frame_handle_start = new ArdourCanvas::SimpleRect (*group);
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frame_handle_start->property_x1() = (double) 0.0;
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frame_handle_start->property_x2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH;
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frame_handle_start->property_y1() = (double) 1.0;
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frame_handle_start->property_y2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH+1;
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frame_handle_start->property_outline_color_rgba() = color_map[cFrameHandleStartOutline];
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frame_handle_start->property_fill_color_rgba() = color_map[cFrameHandleStartFill];
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frame_handle_end = new ArdourCanvas::SimpleRect (*group);
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frame_handle_end->property_x1() = (double) (trackview.editor.frame_to_pixel(get_duration())) - (TimeAxisViewItem::GRAB_HANDLE_LENGTH);
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frame_handle_end->property_x2() = (double) trackview.editor.frame_to_pixel(get_duration());
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frame_handle_end->property_y1() = (double) 1;
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frame_handle_end->property_y2() = (double) TimeAxisViewItem::GRAB_HANDLE_LENGTH + 1;
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frame_handle_end->property_outline_color_rgba() = color_map[cFrameHandleEndOutline];
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frame_handle_end->property_fill_color_rgba() = color_map[cFrameHandleEndFill];
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} else {
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frame_handle_start = 0;
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frame_handle_end = 0;
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}
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set_color (base_color) ;
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set_duration (item_duration, this) ;
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set_position (start, this) ;
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}
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/**
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* Destructor
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*/
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TimeAxisViewItem::~TimeAxisViewItem()
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{
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delete group;
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}
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//---------------------------------------------------------------------------------------//
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// Position and duration Accessors/Mutators
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/**
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* Set the position of this item upon the timeline to the specified value
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*
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* @param pos the new position
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* @param src the identity of the object that initiated the change
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* @return true if the position change was a success, false otherwise
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*/
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bool
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TimeAxisViewItem::set_position(nframes_t pos, void* src, double* delta)
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{
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if (position_locked) {
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return false;
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}
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frame_position = pos;
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/* This sucks. The GnomeCanvas version I am using
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doesn't correctly implement gnome_canvas_group_set_arg(),
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so that simply setting the "x" arg of the group
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fails to move the group. Instead, we have to
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use gnome_canvas_item_move(), which does the right
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thing. I see that in GNOME CVS, the current (Sept 2001)
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version of GNOME Canvas rectifies this issue cleanly.
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*/
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double old_unit_pos ;
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double new_unit_pos = pos / samples_per_unit ;
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old_unit_pos = group->property_x();
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if (new_unit_pos != old_unit_pos) {
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group->move (new_unit_pos - old_unit_pos, 0.0);
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}
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if (delta) {
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(*delta) = new_unit_pos - old_unit_pos;
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}
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PositionChanged (frame_position, src) ; /* EMIT_SIGNAL */
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return true;
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}
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/**
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* Return the position of this item upon the timeline
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*
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* @return the position of this item
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*/
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nframes_t
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TimeAxisViewItem::get_position() const
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{
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return frame_position;
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}
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/**
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* Sets the duration of this item
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*
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* @param dur the new duration of this item
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* @param src the identity of the object that initiated the change
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* @return true if the duration change was succesful, false otherwise
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*/
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bool
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TimeAxisViewItem::set_duration (nframes_t dur, void* src)
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{
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if ((dur > max_item_duration) || (dur < min_item_duration)) {
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warning << string_compose (_("new duration %1 frames is out of bounds for %2"), get_item_name(), dur)
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<< endmsg;
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return false;
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}
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if (dur == 0) {
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group->hide();
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}
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item_duration = dur;
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reset_width_dependent_items (trackview.editor.frame_to_pixel (dur));
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DurationChanged (dur, src) ; /* EMIT_SIGNAL */
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return true;
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}
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/**
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* Returns the duration of this item
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*
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*/
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nframes_t
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TimeAxisViewItem::get_duration() const
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{
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return (item_duration);
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}
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/**
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* Sets the maximum duration that this item make have.
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*
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* @param dur the new maximum duration
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_max_duration(nframes_t dur, void* src)
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{
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max_item_duration = dur ;
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MaxDurationChanged(max_item_duration, src) ; /* EMIT_SIGNAL */
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}
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/**
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* Returns the maxmimum duration that this item may be set to
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*
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* @return the maximum duration that this item may be set to
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*/
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nframes_t
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TimeAxisViewItem::get_max_duration() const
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{
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return (max_item_duration) ;
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}
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/**
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* Sets the minimu duration that this item may be set to
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*
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* @param the minimum duration that this item may be set to
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_min_duration(nframes_t dur, void* src)
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{
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min_item_duration = dur ;
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MinDurationChanged(max_item_duration, src) ; /* EMIT_SIGNAL */
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}
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/**
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* Returns the minimum duration that this item mey be set to
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*
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* @return the nimum duration that this item mey be set to
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*/
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nframes_t
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TimeAxisViewItem::get_min_duration() const
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{
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return(min_item_duration) ;
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}
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/**
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* Sets whether the position of this Item is locked to its current position
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* Locked items cannot be moved until the item is unlocked again.
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*
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* @param yn set to true to lock this item to its current position
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_position_locked(bool yn, void* src)
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{
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position_locked = yn ;
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set_trim_handle_colors() ;
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PositionLockChanged (position_locked, src); /* EMIT_SIGNAL */
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}
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/**
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* Returns whether this item is locked to its current position
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*
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* @return true if this item is locked to its current posotion
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* false otherwise
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*/
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bool
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TimeAxisViewItem::get_position_locked() const
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{
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return (position_locked);
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}
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/**
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* Sets whether the Maximum Duration constraint is active and should be enforced
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*
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* @param active set true to enforce the max duration constraint
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_max_duration_active(bool active, void* src)
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{
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max_duration_active = active ;
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}
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/**
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* Returns whether the Maximum Duration constraint is active and should be enforced
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*
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* @return true if the maximum duration constraint is active, false otherwise
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*/
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bool
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TimeAxisViewItem::get_max_duration_active() const
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{
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return(max_duration_active) ;
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}
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/**
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* Sets whether the Minimum Duration constraint is active and should be enforced
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*
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* @param active set true to enforce the min duration constraint
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_min_duration_active(bool active, void* src)
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{
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min_duration_active = active ;
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}
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/**
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* Returns whether the Maximum Duration constraint is active and should be enforced
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*
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* @return true if the maximum duration constraint is active, false otherwise
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*/
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bool
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TimeAxisViewItem::get_min_duration_active() const
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{
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return(min_duration_active) ;
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}
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//---------------------------------------------------------------------------------------//
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// Name/Id Accessors/Mutators
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/**
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* Set the name/Id of this item.
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*
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* @param new_name the new name of this item
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_item_name(std::string new_name, void* src)
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{
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if (new_name != item_name) {
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std::string temp_name = item_name ;
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item_name = new_name ;
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name_text_width = ::pixel_width (new_name, NAME_FONT);
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NameChanged (item_name, temp_name, src) ; /* EMIT_SIGNAL */
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}
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}
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/**
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* Returns the name/id of this item
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*
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* @return the name/id of this item
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*/
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std::string
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TimeAxisViewItem::get_item_name() const
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{
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return(item_name) ;
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}
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//---------------------------------------------------------------------------------------//
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// Selection Methods
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/**
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* Set to true to indicate that this item is currently selected
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*
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* @param yn true if this item is currently selected
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* @param src the identity of the object that initiated the change
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*/
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void
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TimeAxisViewItem::set_selected(bool yn)
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{
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if (_selected != yn) {
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Selectable::set_selected (yn);
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set_frame_color ();
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}
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}
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void
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TimeAxisViewItem::set_should_show_selection (bool yn)
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{
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if (should_show_selection != yn) {
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should_show_selection = yn;
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set_frame_color ();
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}
|
|
}
|
|
|
|
//---------------------------------------------------------------------------------------//
|
|
// Parent Componenet Methods
|
|
|
|
/**
|
|
* Returns the TimeAxisView that this item is upon
|
|
*
|
|
* @return the timeAxisView that this item is placed upon
|
|
*/
|
|
TimeAxisView&
|
|
TimeAxisViewItem::get_time_axis_view()
|
|
{
|
|
return trackview;
|
|
}
|
|
//---------------------------------------------------------------------------------------//
|
|
// ui methods & data
|
|
|
|
/**
|
|
* Sets the displayed item text
|
|
* This item is the visual text name displayed on the canvas item, this can be different to the name of the item
|
|
*
|
|
* @param new_name the new name text to display
|
|
*/
|
|
void
|
|
TimeAxisViewItem::set_name_text(const ustring& new_name)
|
|
{
|
|
if (name_text) {
|
|
name_text->property_text() = new_name;
|
|
name_text_width = pixel_width (new_name, NAME_FONT);
|
|
name_text_size_cache.clear ();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the y position and height of this item.
|
|
*
|
|
* @param y the new y position
|
|
* @param h the new height
|
|
*/
|
|
void
|
|
TimeAxisViewItem::set_y_position_and_height (double y, double h)
|
|
{
|
|
if (name_highlight) {
|
|
if (h < NAME_HIGHLIGHT_THRESH) {
|
|
name_highlight->hide();
|
|
if (name_text) {
|
|
name_text->hide();
|
|
}
|
|
} else {
|
|
name_highlight->show();
|
|
if (name_text) {
|
|
name_text->show();
|
|
}
|
|
}
|
|
|
|
if (h > NAME_HIGHLIGHT_SIZE) {
|
|
name_highlight->property_y1() = (double) y + h + 1 - NAME_HIGHLIGHT_SIZE;
|
|
name_highlight->property_y2() = (double) y + h;
|
|
}
|
|
else {
|
|
/* it gets hidden now anyway */
|
|
name_highlight->property_y1() = (double) y;
|
|
name_highlight->property_y2() = (double) y + h;
|
|
}
|
|
}
|
|
|
|
if (name_text) {
|
|
name_text->property_y() = y + h + 1 - NAME_Y_OFFSET;
|
|
if (h < NAME_HIGHLIGHT_THRESH) {
|
|
name_text->property_fill_color_rgba() = fill_color;
|
|
}
|
|
else {
|
|
name_text->property_fill_color_rgba() = label_color;
|
|
}
|
|
}
|
|
|
|
if (frame) {
|
|
frame->property_y1() = y;
|
|
frame->property_y2() = y + h + 1;
|
|
}
|
|
|
|
vestigial_frame->property_y1() = y;
|
|
vestigial_frame->property_y2() = y + h + 1;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
void
|
|
TimeAxisViewItem::set_color(Gdk::Color& base_color)
|
|
{
|
|
compute_colors (base_color);
|
|
set_colors ();
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
ArdourCanvas::Item*
|
|
TimeAxisViewItem::get_canvas_frame()
|
|
{
|
|
return(frame) ;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
ArdourCanvas::Item*
|
|
TimeAxisViewItem::get_canvas_group()
|
|
{
|
|
return (group) ;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
ArdourCanvas::Item*
|
|
TimeAxisViewItem::get_name_highlight()
|
|
{
|
|
return (name_highlight) ;
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
ArdourCanvas::Text*
|
|
TimeAxisViewItem::get_name_text()
|
|
{
|
|
return (name_text) ;
|
|
}
|
|
|
|
/**
|
|
* Calculates some contrasting color for displaying various parts of this item, based upon the base color
|
|
*
|
|
* @param color the base color of the item
|
|
*/
|
|
void
|
|
TimeAxisViewItem::compute_colors(Gdk::Color& base_color)
|
|
{
|
|
unsigned char radius ;
|
|
char minor_shift ;
|
|
|
|
unsigned char r,g,b ;
|
|
|
|
/* FILL: this is simple */
|
|
r = base_color.get_red()/256 ;
|
|
g = base_color.get_green()/256 ;
|
|
b = base_color.get_blue()/256 ;
|
|
fill_color = RGBA_TO_UINT(r,g,b,255) ;
|
|
|
|
/* for minor colors:
|
|
if the overall saturation is strong, make the minor colors light.
|
|
if its weak, make them dark.
|
|
|
|
we do this by moving an equal distance to the other side of the
|
|
central circle in the color wheel from where we started.
|
|
*/
|
|
|
|
radius = (unsigned char) rint (floor (sqrt (static_cast<double>(r*r + g*g + b+b))/3.0f)) ;
|
|
minor_shift = 125 - radius ;
|
|
|
|
/* LABEL: rotate around color wheel by 120 degrees anti-clockwise */
|
|
|
|
r = base_color.get_red()/256;
|
|
g = base_color.get_green()/256;
|
|
b = base_color.get_blue()/256;
|
|
|
|
if (r > b)
|
|
{
|
|
if (r > g)
|
|
{
|
|
/* red sector => green */
|
|
swap (r,g);
|
|
}
|
|
else
|
|
{
|
|
/* green sector => blue */
|
|
swap (g,b);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (b > g)
|
|
{
|
|
/* blue sector => red */
|
|
swap (b,r);
|
|
}
|
|
else
|
|
{
|
|
/* green sector => blue */
|
|
swap (g,b);
|
|
}
|
|
}
|
|
|
|
r += minor_shift;
|
|
b += minor_shift;
|
|
g += minor_shift;
|
|
|
|
label_color = RGBA_TO_UINT(r,g,b,255);
|
|
r = (base_color.get_red()/256) + 127 ;
|
|
g = (base_color.get_green()/256) + 127 ;
|
|
b = (base_color.get_blue()/256) + 127 ;
|
|
|
|
label_color = RGBA_TO_UINT(r,g,b,255);
|
|
|
|
/* XXX can we do better than this ? */
|
|
/* We're trying ;) */
|
|
/* NUKECOLORS */
|
|
|
|
//frame_color_r = 192;
|
|
//frame_color_g = 192;
|
|
//frame_color_b = 194;
|
|
|
|
//selected_frame_color_r = 182;
|
|
//selected_frame_color_g = 145;
|
|
//selected_frame_color_b = 168;
|
|
|
|
//handle_color_r = 25 ;
|
|
//handle_color_g = 0 ;
|
|
//handle_color_b = 255 ;
|
|
//lock_handle_color_r = 235 ;
|
|
//lock_handle_color_g = 16;
|
|
//lock_handle_color_b = 16;
|
|
}
|
|
|
|
/**
|
|
* Convenience method to set the various canvas item colors
|
|
*/
|
|
void
|
|
TimeAxisViewItem::set_colors()
|
|
{
|
|
set_frame_color() ;
|
|
if (name_text) {
|
|
double height = NAME_HIGHLIGHT_THRESH;
|
|
|
|
if (frame) {
|
|
height = frame->property_y2();
|
|
}
|
|
|
|
if (height < NAME_HIGHLIGHT_THRESH) {
|
|
name_text->property_fill_color_rgba() = fill_color;
|
|
}
|
|
else {
|
|
name_text->property_fill_color_rgba() = label_color;
|
|
}
|
|
}
|
|
|
|
if (name_highlight) {
|
|
name_highlight->property_fill_color_rgba() = fill_color;
|
|
name_highlight->property_outline_color_rgba() = fill_color;
|
|
}
|
|
set_trim_handle_colors() ;
|
|
}
|
|
|
|
/**
|
|
* Sets the frame color depending on whether this item is selected
|
|
*/
|
|
void
|
|
TimeAxisViewItem::set_frame_color()
|
|
{
|
|
if (frame) {
|
|
uint32_t r,g,b,a;
|
|
|
|
if (_selected && should_show_selection) {
|
|
UINT_TO_RGBA(color_map[cSelectedFrameBase], &r, &g, &b, &a);
|
|
frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity);
|
|
} else {
|
|
UINT_TO_RGBA(color_map[cFrameBase], &r, &g, &b, &a);
|
|
frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the colors of the start and end trim handle depending on object state
|
|
*
|
|
*/
|
|
void
|
|
TimeAxisViewItem::set_trim_handle_colors()
|
|
{
|
|
if (frame_handle_start) {
|
|
if (position_locked) {
|
|
frame_handle_start->property_fill_color_rgba() = color_map[cTrimHandleLockedStart];
|
|
frame_handle_end->property_fill_color_rgba() = color_map[cTrimHandleLockedEnd];
|
|
} else {
|
|
frame_handle_start->property_fill_color_rgba() = color_map[cTrimHandleStart];
|
|
frame_handle_end->property_fill_color_rgba() = color_map[cTrimHandleEnd];
|
|
}
|
|
}
|
|
}
|
|
|
|
double
|
|
TimeAxisViewItem::get_samples_per_unit()
|
|
{
|
|
return(samples_per_unit) ;
|
|
}
|
|
|
|
void
|
|
TimeAxisViewItem::set_samples_per_unit (double spu)
|
|
{
|
|
samples_per_unit = spu ;
|
|
set_position (this->get_position(), this);
|
|
reset_width_dependent_items ((double)get_duration() / samples_per_unit);
|
|
}
|
|
|
|
void
|
|
TimeAxisViewItem::reset_width_dependent_items (double pixel_width)
|
|
{
|
|
if (pixel_width < GRAB_HANDLE_LENGTH * 2) {
|
|
|
|
if (frame_handle_start) {
|
|
frame_handle_start->hide();
|
|
frame_handle_end->hide();
|
|
}
|
|
|
|
} if (pixel_width < 2.0) {
|
|
|
|
if (show_vestigial) {
|
|
vestigial_frame->show();
|
|
}
|
|
|
|
if (name_highlight) {
|
|
name_highlight->hide();
|
|
if (name_text) {
|
|
name_text->hide();
|
|
}
|
|
}
|
|
|
|
if (frame) {
|
|
frame->hide();
|
|
}
|
|
|
|
if (frame_handle_start) {
|
|
frame_handle_start->hide();
|
|
frame_handle_end->hide();
|
|
}
|
|
|
|
} else {
|
|
vestigial_frame->hide();
|
|
|
|
if (name_highlight) {
|
|
|
|
double height = name_highlight->property_y2 ();
|
|
|
|
if (height < NAME_HIGHLIGHT_THRESH) {
|
|
name_highlight->hide();
|
|
if (name_text) {
|
|
name_text->hide();
|
|
}
|
|
} else {
|
|
name_highlight->show();
|
|
if (name_text && !get_item_name().empty()) {
|
|
name_text->show();
|
|
reset_name_width (pixel_width);
|
|
}
|
|
}
|
|
|
|
if (visibility & FullWidthNameHighlight) {
|
|
name_highlight->property_x2() = pixel_width;
|
|
} else {
|
|
name_highlight->property_x2() = pixel_width - 1.0;
|
|
}
|
|
|
|
}
|
|
|
|
if (frame) {
|
|
frame->show();
|
|
frame->property_x2() = pixel_width;
|
|
}
|
|
|
|
if (frame_handle_start) {
|
|
if (pixel_width < (2*TimeAxisViewItem::GRAB_HANDLE_LENGTH)) {
|
|
frame_handle_start->hide();
|
|
frame_handle_end->hide();
|
|
}
|
|
frame_handle_start->show();
|
|
frame_handle_end->property_x1() = pixel_width - (TimeAxisViewItem::GRAB_HANDLE_LENGTH);
|
|
frame_handle_end->show();
|
|
frame_handle_end->property_x2() = pixel_width;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisViewItem::reset_name_width (double pixel_width)
|
|
{
|
|
if (name_text == 0) {
|
|
return;
|
|
}
|
|
|
|
int limit = (int) floor (pixel_width - NAME_X_OFFSET);
|
|
bool shrinking = (last_name_text_width > pixel_width);
|
|
int actual_width;
|
|
ustring ustr;
|
|
ustring::size_type n;
|
|
|
|
if ((last_name_text_width && // we did this once
|
|
shrinking && // we're getting smaller
|
|
(name_text_width <= limit) && // fits the new size
|
|
(name_text_width <= last_name_text_width - NAME_X_OFFSET))) { // fit into the old size too
|
|
last_name_text_width = pixel_width;
|
|
return;
|
|
}
|
|
|
|
/* now check the cache of existing truncations */
|
|
|
|
Gtk::Label foo;
|
|
Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout ("");
|
|
|
|
for (n = item_name.length(); n > 0; --n) {
|
|
|
|
map<ustring::size_type,int>::iterator i;
|
|
|
|
if ((i = name_text_size_cache.find (n)) != name_text_size_cache.end()) {
|
|
|
|
/* we know the length of this substring already */
|
|
|
|
if ((actual_width = (*i).second) < limit) {
|
|
|
|
/* it fits, use it */
|
|
|
|
ustr = item_name.substr (0, n);
|
|
break;
|
|
}
|
|
|
|
} else {
|
|
|
|
/* we don't know the length of this substring already, so compute
|
|
it and put it into the cache.
|
|
*/
|
|
|
|
layout->set_text (item_name.substr (0, n));
|
|
|
|
int width, height;
|
|
Gtkmm2ext::get_ink_pixel_size (layout, width, height);
|
|
|
|
name_text_size_cache[n] = width;
|
|
|
|
if ((actual_width = width) < limit) {
|
|
ustr = item_name.substr (0, n);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (n == 0) {
|
|
name_text->property_text() = "";
|
|
last_name_text_width = pixel_width;
|
|
return;
|
|
}
|
|
|
|
/* don't use name for event handling if it leaves no room
|
|
for trimming to work.
|
|
*/
|
|
|
|
if (pixel_width - actual_width < (NAME_X_OFFSET * 2.0)) {
|
|
if (name_connected) {
|
|
name_connected = false;
|
|
}
|
|
} else {
|
|
if (!name_connected) {
|
|
name_connected = true;
|
|
}
|
|
}
|
|
|
|
name_text->property_text() = ustr;
|
|
name_text_width = actual_width;
|
|
name_text->show();
|
|
last_name_text_width = pixel_width;
|
|
|
|
}
|
|
|
|
|
|
//---------------------------------------------------------------------------------------//
|
|
// Handle time axis removal
|
|
|
|
/**
|
|
* Handles the Removal of this time axis item
|
|
* This _needs_ to be called to alert others of the removal properly, ie where the source
|
|
* of the removal came from.
|
|
*
|
|
* XXX Although im not too happy about this method of doing things, I cant think of a cleaner method
|
|
* just now to capture the source of the removal
|
|
*
|
|
* @param src the identity of the object that initiated the change
|
|
*/
|
|
void
|
|
TimeAxisViewItem::remove_this_item(void* src)
|
|
{
|
|
/*
|
|
defer to idle loop, otherwise we'll delete this object
|
|
while we're still inside this function ...
|
|
*/
|
|
Glib::signal_idle().connect(bind (sigc::ptr_fun (&TimeAxisViewItem::idle_remove_this_item), this, src));
|
|
}
|
|
|
|
/**
|
|
* Callback used to remove this time axis item during the gtk idle loop
|
|
* This is used to avoid deleting the obejct while inside the remove_this_item
|
|
* method
|
|
*
|
|
* @param item the TimeAxisViewItem to remove
|
|
* @param src the identity of the object that initiated the change
|
|
*/
|
|
gint
|
|
TimeAxisViewItem::idle_remove_this_item(TimeAxisViewItem* item, void* src)
|
|
{
|
|
item->ItemRemoved (item->get_item_name(), src) ; /* EMIT_SIGNAL */
|
|
delete item;
|
|
item = 0;
|
|
return false;
|
|
}
|