ui_image_picker.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef BLADERUNNER_UI_IMAGE_PICKER_H
#define BLADERUNNER_UI_IMAGE_PICKER_H
 
#include "common/array.h"
#include "common/rect.h"
#include "common/str.h"
 
namespace Graphics {
struct Surface;
}
 
namespace BladeRunner {
 
class BladeRunnerEngine;
class Shape;
 
typedef void UIImagePickerCallback(int, void *);
 
class UIImagePicker {
    struct Image {
        int             active;
        Common::Rect    rect;
        const Shape    *shapeUp;
        const Shape    *shapeHovered;
        const Shape    *shapeDown;
        Common::String  tooltip;
    };
 
    BladeRunnerEngine *_vm;
 
    int    _isVisible;
    int    _imageCount;
    int    _hoveredImageIndex;
    int    _pressedImageIndex;
    uint32 _hoverStartTimestamp;
    int    _isButtonDown;
    Common::Array<Image> _images;
 
    UIImagePickerCallback *_mouseInCallback;
    UIImagePickerCallback *_mouseOutCallback;
    UIImagePickerCallback *_mouseDownCallback;
    UIImagePickerCallback *_mouseUpCallback;
    void *_callbackData;
 
public:
    UIImagePicker(BladeRunnerEngine *vm, int imageCount);
    ~UIImagePicker();
 
    void resetImages();
    bool defineImage(int i, Common::Rect rect, const Shape *shapeUp, const Shape *shapeHovered, const Shape *shapeDown, const char *tooltip);
 
    bool setImageTop(int i, int top);
    bool setImageLeft(int i, int left);
    bool setImageWidth(int i, int16 width);
    bool setImageShapeUp(int i, const Shape *shapeUp);
    bool setImageShapeHovered(int i, const Shape *shapeHovered);
    bool setImageShapeDown(int i, const Shape *shapeDown);
    bool setImageTooltip(int i, const char *tooltip);
 
    int getImageTop(int i);
    int getImageLeft(int i);
    int getImageWidth(int i);
 
    bool resetActiveImage(int i);
 
    void activate(UIImagePickerCallback *mouseInCallback,
                  UIImagePickerCallback *mouseOutCallback,
                  UIImagePickerCallback *mouseDownCallback,
                  UIImagePickerCallback *mouseUpCallback,
                  void *callbackData);
 
    void deactivate();
 
    void draw(Graphics::Surface &surface);
    void drawTooltip(Graphics::Surface &surface, int x, int y);
 
    bool handleMouseAction(int x, int y, bool down, bool up, bool ignore = false);
 
    void resetImage(int i);
    bool hasHoveredImage();
 
    void reset();
};
 
} // End of namespace BladeRunner
 
#endif