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https://github.com/aseprite/aseprite.git
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83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
// Aseprite UI Library
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// Copyright (C) 2001-2013 David Capello
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//
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// This file is released under the terms of the MIT license.
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// Read LICENSE.txt for more information.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gfx/point.h"
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#include "gfx/size.h"
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#include "ui/message.h"
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#include "ui/preferred_size_event.h"
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#include "ui/resize_event.h"
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#include "ui/theme.h"
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#include "ui/view.h"
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#include "ui/viewport.h"
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namespace ui {
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using namespace gfx;
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Viewport::Viewport()
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: Widget(kViewViewportWidget)
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{
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initTheme();
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}
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void Viewport::onResize(ResizeEvent& ev)
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{
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Rect rect = ev.getBounds();
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setBoundsQuietly(rect);
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Point scroll = static_cast<View*>(this->getParent())->getViewScroll();
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Rect cpos(0, 0, 0, 0);
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cpos.x = rect.x + this->border_width.l - scroll.x;
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cpos.y = rect.y + this->border_width.t - scroll.y;
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UI_FOREACH_WIDGET(getChildren(), it) {
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Widget* child = *it;
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Size reqSize = child->getPreferredSize();
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cpos.w = MAX(reqSize.w, rect.w
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- this->border_width.l
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- this->border_width.r);
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cpos.h = MAX(reqSize.h, rect.h
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- this->border_width.t
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- this->border_width.b);
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child->setBounds(cpos);
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}
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}
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void Viewport::onPreferredSize(PreferredSizeEvent& ev)
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{
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ev.setPreferredSize(gfx::Size(this->border_width.l + 1 + this->border_width.r,
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this->border_width.t + 1 + this->border_width.b));
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}
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void Viewport::onPaint(PaintEvent& ev)
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{
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getTheme()->paintViewViewport(ev);
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}
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Size Viewport::calculateNeededSize()
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{
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Size maxSize(0, 0);
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Size reqSize;
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UI_FOREACH_WIDGET(getChildren(), it) {
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reqSize = (*it)->getPreferredSize();
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maxSize.w = MAX(maxSize.w, reqSize.w);
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maxSize.h = MAX(maxSize.h, reqSize.h);
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}
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return maxSize;
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}
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} // namespace ui
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