mirror of
https://github.com/aseprite/aseprite.git
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99 lines
2.1 KiB
C++
99 lines
2.1 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 "ui/overlay.h"
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#include "she/locked_surface.h"
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#include "she/scoped_surface_lock.h"
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#include "she/system.h"
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#include "ui/manager.h"
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namespace ui {
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Overlay::Overlay(she::Surface* overlaySurface, const gfx::Point& pos, ZOrder zorder)
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: m_surface(overlaySurface)
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, m_overlap(NULL)
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, m_pos(pos)
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, m_zorder(zorder)
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{
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}
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Overlay::~Overlay()
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{
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if (m_surface) {
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Manager* manager = Manager::getDefault();
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if (manager)
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manager->invalidateRect(gfx::Rect(m_pos.x, m_pos.y,
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m_surface->width(),
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m_surface->height()));
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m_surface->dispose();
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}
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if (m_overlap)
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m_overlap->dispose();
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}
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she::Surface* Overlay::setSurface(she::Surface* newSurface)
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{
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she::Surface* oldSurface = m_surface;
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m_surface = newSurface;
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return oldSurface;
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}
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gfx::Rect Overlay::getBounds() const
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{
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if (m_surface)
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return gfx::Rect(m_pos.x, m_pos.y, m_surface->width(), m_surface->height());
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else
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return gfx::Rect(0, 0, 0, 0);
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}
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void Overlay::drawOverlay(she::LockedSurface* screen)
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{
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if (!m_surface)
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return;
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she::ScopedSurfaceLock lockedSurface(m_surface);
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screen->drawAlphaSurface(lockedSurface, m_pos.x, m_pos.y);
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}
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void Overlay::moveOverlay(const gfx::Point& newPos)
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{
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m_pos = newPos;
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}
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void Overlay::captureOverlappedArea(she::LockedSurface* screen)
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{
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if (!m_surface)
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return;
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if (!m_overlap)
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m_overlap = she::Instance()->createSurface(m_surface->width(), m_surface->height());
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she::ScopedSurfaceLock lock(m_overlap);
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screen->blitTo(lock, m_pos.x, m_pos.y, 0, 0,
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m_overlap->width(), m_overlap->height());
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}
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void Overlay::restoreOverlappedArea(she::LockedSurface* screen)
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{
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if (!m_surface)
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return;
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if (!m_overlap)
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return;
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she::ScopedSurfaceLock lock(m_overlap);
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lock->blitTo(screen, 0, 0, m_pos.x, m_pos.y,
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m_overlap->width(), m_overlap->height());
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}
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}
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