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https://github.com/libretro/scummvm.git
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8062eb6ec3
recently added (cursor) palette manager) so that the cursor can be properly restored after returning from the GUI. If there's any C++ magic that can keep the backend functions from being called by anything else than these managing classes, that would probably be a good idea. Also, since the cursor manager keeps a copy of the cursor image, perhaps there are at least some backends that will no longer need to? svn-id: r22639
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2006 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#include "graphics/cursorman.h"
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#include "common/system.h"
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#include "common/stack.h"
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DECLARE_SINGLETON(Graphics::CursorManager);
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namespace Graphics {
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static bool g_initialized = false;
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CursorManager::CursorManager() {
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if (!g_initialized) {
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g_initialized = true;
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_cursorStack.clear();
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}
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}
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bool CursorManager::isVisible() {
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if (_cursorStack.empty())
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return false;
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return _cursorStack.top()->_visible;
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}
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bool CursorManager::showMouse(bool visible) {
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if (_cursorStack.empty())
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return false;
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_cursorStack.top()->_visible = visible;
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return g_system->showMouse(visible);
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}
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void CursorManager::pushCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor, int targetScale) {
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Cursor *cur = new Cursor(buf, w, h, hotspotX, hotspotY, keycolor, targetScale);
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cur->_visible = isVisible();
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_cursorStack.push(cur);
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if (buf) {
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g_system->setMouseCursor(cur->_data, w, h, hotspotX, hotspotY, keycolor, targetScale);
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}
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}
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void CursorManager::popCursor() {
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if (_cursorStack.empty())
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return;
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Cursor *cur = _cursorStack.pop();
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delete cur;
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if (!_cursorStack.empty()) {
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cur = _cursorStack.top();
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g_system->setMouseCursor(cur->_data, cur->_width, cur->_height, cur->_hotspotX, cur->_hotspotY, cur->_keycolor, cur->_targetScale);
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}
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g_system->showMouse(isVisible());
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}
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void CursorManager::replaceCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor, int targetScale) {
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if (_cursorStack.empty()) {
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pushCursor(buf, w, h, hotspotX, hotspotY, keycolor, targetScale);
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return;
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}
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Cursor *cur = _cursorStack.top();
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uint size = w * h;
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if (cur->_size < size) {
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delete cur->_data;
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cur->_data = new byte[size];
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cur->_size = size;
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}
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if (buf && cur->_data)
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memcpy(cur->_data, buf, size);
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cur->_width = w;
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cur->_height = h;
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cur->_hotspotX = hotspotX;
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cur->_hotspotY = hotspotY;
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cur->_keycolor = keycolor;
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cur->_targetScale = targetScale;
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g_system->setMouseCursor(cur->_data, w, h, hotspotX, hotspotY, keycolor, targetScale);
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}
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} // End of namespace Graphics
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