mirror of
https://github.com/libretro/scummvm.git
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aa0f307e06
Silences the clang warning: static data member specialization of '_singleton' must originally be declared in namespace 'Common'; accepted as a C++0x extension [-Wc++0x-extensions] Wrapping "namespace Common {}" around the macro assignment causes clang to complain about a spurious semicolon, and removing the semicolon at the end of the macro causes some editors to misbehave. Changing the requirement of using the macro in one namespace (the global) to another (Common) seems a small price to pay to silence a warning.
275 lines
6.9 KiB
C++
275 lines
6.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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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#include "graphics/cursorman.h"
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#include "common/system.h"
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#include "common/stack.h"
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namespace Common {
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DECLARE_SINGLETON(Graphics::CursorManager);
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}
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namespace Graphics {
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CursorManager::~CursorManager() {
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for (int i = 0; i < _cursorStack.size(); ++i)
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delete _cursorStack[i];
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_cursorStack.clear();
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for (int i = 0; i < _cursorPaletteStack.size(); ++i)
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delete _cursorPaletteStack[i];
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_cursorPaletteStack.clear();
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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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// Should work, even if there's just a dummy cursor on the stack.
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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, uint32 keycolor, int targetScale, const Graphics::PixelFormat *format) {
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Cursor *cur = new Cursor(buf, w, h, hotspotX, hotspotY, keycolor, targetScale, format);
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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, format);
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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, &cur->_format);
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}
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g_system->showMouse(isVisible());
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}
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void CursorManager::popAllCursors() {
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while (!_cursorStack.empty()) {
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Cursor *cur = _cursorStack.pop();
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delete cur;
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}
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if (g_system->hasFeature(OSystem::kFeatureCursorPalette)) {
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while (!_cursorPaletteStack.empty()) {
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Palette *pal = _cursorPaletteStack.pop();
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delete pal;
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}
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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, uint32 keycolor, int targetScale, const Graphics::PixelFormat *format) {
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if (_cursorStack.empty()) {
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pushCursor(buf, w, h, hotspotX, hotspotY, keycolor, targetScale, format);
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return;
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}
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Cursor *cur = _cursorStack.top();
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#ifdef USE_RGB_COLOR
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uint size;
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if (!format)
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size = w * h;
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else
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size = w * h * format->bytesPerPixel;
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#else
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uint size = w * h;
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#endif
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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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#ifdef USE_RGB_COLOR
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if (format)
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cur->_format = *format;
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else
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cur->_format = Graphics::PixelFormat::createFormatCLUT8();
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#endif
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g_system->setMouseCursor(cur->_data, w, h, hotspotX, hotspotY, keycolor, targetScale, format);
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}
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bool CursorManager::supportsCursorPalettes() {
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return g_system->hasFeature(OSystem::kFeatureCursorPalette);
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}
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void CursorManager::disableCursorPalette(bool disable) {
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if (!g_system->hasFeature(OSystem::kFeatureCursorPalette))
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return;
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if (_cursorPaletteStack.empty())
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return;
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Palette *pal = _cursorPaletteStack.top();
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pal->_disabled = disable;
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g_system->setFeatureState(OSystem::kFeatureCursorPalette, !disable);
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}
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void CursorManager::pushCursorPalette(const byte *colors, uint start, uint num) {
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if (!g_system->hasFeature(OSystem::kFeatureCursorPalette))
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return;
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Palette *pal = new Palette(colors, start, num);
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_cursorPaletteStack.push(pal);
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if (num)
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g_system->setCursorPalette(colors, start, num);
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else
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g_system->setFeatureState(OSystem::kFeatureCursorPalette, false);
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}
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void CursorManager::popCursorPalette() {
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if (!g_system->hasFeature(OSystem::kFeatureCursorPalette))
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return;
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if (_cursorPaletteStack.empty())
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return;
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Palette *pal = _cursorPaletteStack.pop();
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delete pal;
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if (_cursorPaletteStack.empty()) {
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g_system->setFeatureState(OSystem::kFeatureCursorPalette, false);
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return;
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}
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pal = _cursorPaletteStack.top();
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if (pal->_num && !pal->_disabled)
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g_system->setCursorPalette(pal->_data, pal->_start, pal->_num);
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else
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g_system->setFeatureState(OSystem::kFeatureCursorPalette, false);
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}
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void CursorManager::replaceCursorPalette(const byte *colors, uint start, uint num) {
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if (!g_system->hasFeature(OSystem::kFeatureCursorPalette))
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return;
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if (_cursorPaletteStack.empty()) {
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pushCursorPalette(colors, start, num);
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return;
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}
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Palette *pal = _cursorPaletteStack.top();
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uint size = 3 * num;
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if (pal->_size < size) {
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// Could not re-use the old buffer. Create a new one.
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delete[] pal->_data;
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pal->_data = new byte[size];
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pal->_size = size;
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}
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pal->_start = start;
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pal->_num = num;
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if (num) {
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memcpy(pal->_data, colors, size);
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g_system->setCursorPalette(pal->_data, pal->_start, pal->_num);
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} else {
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g_system->setFeatureState(OSystem::kFeatureCursorPalette, false);
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}
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}
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CursorManager::Cursor::Cursor(const byte *data, uint w, uint h, int hotspotX, int hotspotY, uint32 keycolor, int targetScale, const Graphics::PixelFormat *format) {
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#ifdef USE_RGB_COLOR
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if (!format)
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_format = Graphics::PixelFormat::createFormatCLUT8();
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else
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_format = *format;
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_size = w * h * _format.bytesPerPixel;
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_keycolor = keycolor & ((1 << (_format.bytesPerPixel << 3)) - 1);
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#else
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_format = Graphics::PixelFormat::createFormatCLUT8();
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_size = w * h;
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_keycolor = keycolor & 0xFF;
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#endif
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_data = new byte[_size];
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if (data && _data)
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memcpy(_data, data, _size);
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_width = w;
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_height = h;
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_hotspotX = hotspotX;
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_hotspotY = hotspotY;
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_targetScale = targetScale;
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}
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CursorManager::Cursor::~Cursor() {
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delete[] _data;
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}
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CursorManager::Palette::Palette(const byte *colors, uint start, uint num) {
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_start = start;
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_num = num;
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_size = 3 * num;
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if (num) {
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_data = new byte[_size];
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memcpy(_data, colors, _size);
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} else {
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_data = NULL;
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}
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_disabled = false;
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}
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CursorManager::Palette::~Palette() {
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delete[] _data;
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}
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} // End of namespace Graphics
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