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https://github.com/aseprite/aseprite.git
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81 lines
1.6 KiB
C++
81 lines
1.6 KiB
C++
// Aseprite UI Library
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// Copyright (C) 2018-2019 Igara Studio S.A.
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// Copyright (C) 2001-2015 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/size_hint_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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#include <algorithm>
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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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enableFlags(IGNORE_MOUSE);
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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.bounds();
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setBoundsQuietly(rect);
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Point scroll = static_cast<View*>(parent())->viewScroll();
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Rect cpos(0, 0, 0, 0);
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cpos.x = rect.x + border().left() - scroll.x;
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cpos.y = rect.y + border().top() - scroll.y;
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for (auto child : children()) {
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Size reqSize = child->sizeHint();
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cpos.w = std::max(reqSize.w, rect.w - border().width());
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cpos.h = std::max(reqSize.h, rect.h - border().height());
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child->setBounds(cpos);
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}
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}
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void Viewport::onSizeHint(SizeHintEvent& ev)
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{
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ev.setSizeHint(gfx::Size(1 + border().width(),
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1 + border().height()));
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}
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void Viewport::onPaint(PaintEvent& ev)
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{
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theme()->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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for (auto child : children()) {
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reqSize = child->sizeHint();
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maxSize.w = std::max(maxSize.w, reqSize.w);
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maxSize.h = std::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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