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engines/bladerunner/ui/ui_scroll_box.h

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+/* 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_SCROLLBOX_H
+#define BLADERUNNER_UI_SCROLLBOX_H
+
+#include "bladerunner/color.h"
+#include "bladerunner/ui/ui_component.h"
+
+#include "common/array.h"
+#include "common/rect.h"
+#include "common/str.h"
+
+namespace BladeRunner {
+
+typedef void UIScrollBoxClickedCallback(void *callbackData, void *source, int lineData, int mouseButton);
+
+class UIScrollBox : public UIComponent {
+	static const int kLineHeight = 10;
+	static const Color256 k3DFrameColors[];
+	static const Color256 kTextBackgroundColors[];
+	static const Color256 kTextColors1[];
+	static const Color256 kTextColors2[];
+	static const Color256 kTextColors3[];
+	static const Color256 kTextColors4[];
+
+	struct Line {
+		Common::String text;
+		int    lineData;
+		int    flags;
+		uint32 checkboxFrame;
+	};
+
+	int                   _selectedLineState;
+	int                   _scrollUpButtonState;
+	int                   _scrollDownButtonState;
+	int                   _scrollAreaUpState;
+	int                   _scrollAreaDownState;
+	int                   _scrollBarState;
+
+	int                   _hoveredLine;
+	int                   _selectedLineIndex;
+
+	bool                  _scrollUpButtonHover;
+	bool                  _scrollDownButtonHover;
+	bool                  _scrollAreaUpHover;
+	bool                  _scrollAreaDownHover;
+	bool                  _scrollBarHover;
+
+	bool                  _mouseButton;
+
+	UIScrollBoxClickedCallback   *_lineSelectedCallback;
+	void                         *_callbackData;
+
+	bool                  _isVisible;
+	int                   _style;
+	bool                  _center;
+
+	uint32                _timeLastScroll;
+	uint32                _timeLastCheckbox;
+	uint32                _timeLastHighlight;
+
+	int                   _highlightFrame;
+
+	Common::Rect          _rect;
+	Common::Rect          _scrollBarRect;
+
+	int                   _lineCount;
+	int                   _maxLineCount;
+	Common::Array<Line *> _lines;
+	int                   _maxLinesVisible;
+	int                   _firstLineVisible;
+
+	bool                  _mouseOver;
+
+public:
+	UIScrollBox(BladeRunnerEngine *vm,
+	            UIScrollBoxClickedCallback *lineSelectedCallback,
+	            void *callbackData,
+	            int maxLineCount,
+	            int style,
+	            bool center,
+	            Common::Rect rect,
+	            Common::Rect scrollBarRect);
+
+	~UIScrollBox() override;
+
+	void draw(Graphics::Surface &surface) override;
+
+	void handleMouseMove(int mouseX, int mouseY) override;
+	void handleMouseDown(bool alternateButton) override;
+	void handleMouseUp(bool alternateButton) override;
+	void handleMouseScroll(int direction) override;
+
+	void show();
+	void hide();
+	bool isVisible();
+	bool hasFocus();
+
+	void setBoxTop(int top);
+	void setBoxLeft(int left);
+	void setBoxWidth(uint16 width);
+	void setScrollbarTop(int top);
+	void setScrollbarLeft(int left);
+	void setScrollbarWidth(uint16 width);
+
+	int    getBoxLeft();
+	uint16 getBoxWidth();
+
+
+	void clearLines();
+	void addLine(const Common::String &text, int lineData, int flags);
+	void addLine(const char *text, int lineData, int flags);
+	void sortLines();
+
+	int getSelectedLineData();
+	Common::String getLineText(int lineData);
+	int getMaxLinesVisible();
+	int getLineCount();
+
+	void checkAll();
+	void uncheckAll();
+	void toggleCheckBox(int lineData);
+
+	bool hasLine(int lineData);
+
+	void resetHighlight(int lineData);
+	void setFlags(int lineData, int flags);
+	void resetFlags(int lineData, int flags);
+
+private:
+	static int sortFunction(const void *line1, const void *line2);
+
+	void draw3DFrame(Graphics::Surface &surface, Common::Rect rect, bool pressed, int style);
+
+	void scrollUp();
+	void scrollDown();
+
+	int findLine(int lineData);
+};
+
+} // End of namespace BladeRunner
+
+#endif