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105 lines
2.9 KiB
C++
105 lines
2.9 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef PSP_IMAGE_VIEWER_H
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#define PSP_IMAGE_VIEWER_H
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#include "engines/engine.h" // for PauseToken
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class InputHandler;
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class ImageViewer : public DisplayClient {
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public:
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enum Event {
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EVENT_NONE = -1,
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EVENT_HIDE = 0,
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EVENT_SHOW = 1,
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EVENT_ZOOM_IN,
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EVENT_ZOOM_OUT,
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EVENT_MOVE_LEFT,
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EVENT_MOVE_UP,
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EVENT_MOVE_RIGHT,
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EVENT_MOVE_DOWN,
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EVENT_MOVE_STOP,
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EVENT_NEXT_IMAGE,
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EVENT_LAST_IMAGE,
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};
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private:
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Buffer *_buffer;
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Palette *_palette;
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GuRenderer *_renderer;
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bool _visible;
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bool _dirty;
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bool _init;
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uint32 _imageNum; // current image number
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float _zoomFactor; // how much we're zooming in/out on the image
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float _visibleHeight, _visibleWidth;
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float _centerX, _centerY;
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Event _movement;
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PauseToken _pauseToken;
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InputHandler *_inputHandler;
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DisplayManager *_displayManager;
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void setFullScreenImageParams();
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void loadNextImage();
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void loadLastImage();
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void setViewerButtons(bool active);
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void setConstantRendererOptions();
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void moveImageX(float val);
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void moveImageY(float val);
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bool load(int imageNum);
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void unload();
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void runLoop(); // to get total pausing we have to do our own loop
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void setZoom(float value);
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void setOffsetParams();
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void modifyZoom(bool up); // up or down
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void setVisible(bool visible);
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public:
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ImageViewer() : _buffer(0), _palette(0), _visible(false),
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_dirty(false), _init(false), _imageNum(0),
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_zoomFactor(0.0f), _visibleHeight(0.0f), _visibleWidth(0.0f),
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_centerX(0.0f), _centerY(0.0f), _movement(EVENT_MOVE_STOP),
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_inputHandler(0), _displayManager(0) {}
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~ImageViewer() { unload(); } // deallocate images
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bool load();
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void render();
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bool isVisible() { return _visible; }
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bool isDirty() { return _dirty; }
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void setDirty() { _dirty = true; }
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void setClean() { if (!_visible) // otherwise we want to keep rendering
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_dirty = false;
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}
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void resetOnEngineDone();
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void handleEvent(uint32 event);
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// pointer setters
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void setInputHandler(InputHandler *inputHandler) { _inputHandler = inputHandler; }
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void setDisplayManager(DisplayManager *displayManager) { _displayManager = displayManager; }
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};
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#endif /* PSP_IMAGE_VIEWER_H */
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