86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
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/*
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Copyright (C) 2019 Paul Davis
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Author: Ben Loftis <ben@harrisonconsoles.com>
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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 <algorithm>
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#include <cairomm/context.h>
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#include <pangomm/layout.h>
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#include "pbd/compose.h"
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#include "gtkmm2ext/keyboard.h"
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#include "gtkmm2ext/utils.h"
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#include "canvas/canvas.h"
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#include "canvas/debug.h"
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#include "canvas/utils.h"
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#include "actions.h"
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#include "gui_thread.h"
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#include "utils.h"
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#include "timers.h"
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#include "fitted_canvas_widget.h"
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using namespace std;
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using namespace ArdourCanvas;
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using namespace Gtk;
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using namespace Gtkmm2ext;
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using namespace ARDOUR_UI_UTILS;
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//a gtk widget with fixed-size semantics
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FittedCanvasWidget::FittedCanvasWidget (float w, float h, bool follow_scale)
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{
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_nominal_width = w;
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_nominal_height = h;
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_follow_scale = follow_scale;
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//our rendering speed suffers if we re-render knobs simply because they are in-between 2 meters that got invalidated (for example)
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// set_single_exposure(false);
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//#ifdef __APPLE__
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// use_intermediate_surface (false);
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//#endif
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}
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void
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FittedCanvasWidget::on_size_request (Gtk::Requisition* req)
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{
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const double scale = _follow_scale ? UIConfiguration::instance().get_ui_scale() : 1;
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if (_nominal_width>0) {
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req->width = _nominal_width*scale;
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}
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if (_nominal_height>0) {
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req->height = _nominal_height*scale;
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}
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}
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void
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FittedCanvasWidget::on_size_allocate (Gtk::Allocation& alloc)
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{
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GtkCanvas::on_size_allocate(alloc);
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if (!_root.items().empty()) {
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ArdourCanvas::Item *fitted = *_root.items().begin();
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fitted->size_allocate(ArdourCanvas::Rect(0,0,alloc.get_width(), alloc.get_height()));
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}
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}
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