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engines/bladerunner/ui/ui_dropdown.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_DROPDOWN_H
+#define BLADERUNNER_UI_DROPDOWN_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 {
+
+class BladeRunnerEngine;
+class UIImagePicker;
+class UIScrollBox;
+
+typedef void UIDropDownLineSelectedCallback(void *callbackData, void *source, int data, int mouseButton);
+typedef void UIDropDownGenericCallback(void *callbackData, void *source);
+
+class UIDropDown : public UIComponent {
+
+	static const int   kDropDownButtonShapeWidth   =  15;
+	static const int   kDropDownButtonShapeHeight  =  10;
+	static const uint8 kFrameRectPaddingPx         =   2;
+	static const int   kFurthestLeftForScrollBar   = 495;
+
+	static const Color256 kColors[];
+
+	int            _controlLeftX;
+	Common::String _labelStr;
+
+	bool           _isVisible;
+
+	int            _lineSelectedId;
+	Common::String _lineSelectedStr;
+	UIScrollBox   *_lineSelectorScrollBox;
+	UIImagePicker *_lineDropdownBtn;
+	//int            _lineDropdownBtnTopY;
+	//int            _lineDropdownBtnHeight;
+
+	Common::Rect   _lineSelectorFrameRect;
+	int            _lineSelectorFrameRectColor;
+	bool           _lineSelectorFrameRectHasFocus;
+	int            _lineSelectorScrollBoxMaxLineWidth;
+
+	UIDropDownLineSelectedCallback   *_ddlLineSelectedCallback;
+	UIDropDownGenericCallback        *_ddlCancelledCallback;
+	UIDropDownGenericCallback        *_ddlTopFrameClickCallback;
+	void                             *_callbackData;
+
+	int            _mouseX;
+	int            _mouseY;
+
+public:
+	UIDropDown(BladeRunnerEngine *vm, UIDropDownLineSelectedCallback *ddlLineSelectedCallback,
+	                                  UIDropDownGenericCallback *ddlCancelledCallback,
+	                                  UIDropDownGenericCallback *ddlTopFrameClickCallback,
+	                                  void *callbackData,
+		                              Common::String labelStr,
+	                                  int controlLeftX,
+	                                  int controlTopY,
+	                                  int scrollBoxMaxLineCount);
+	~UIDropDown() 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 isDropDownMenuExpanded();
+
+	void activate();
+	void deactivate();
+
+	void clearLines();
+	void addLine(const Common::String &text, int lineData);
+	void addLine(const char *text, int lineData);
+
+	void sortLines();
+
+	void setLabelStr(Common::String newLabel);
+	void setControlLeft(int controlLeftX);
+
+	Common::String getLineSelectedStr();
+
+private:
+	static void mouseDownLDBCallback(int buttonId, void *callbackData);
+	static void scrollBoxLineSelectCallback(void *callbackData, void *source, int lineData, int mouseButton);
+
+	void onButtonPressed(int buttonId);
+
+	void showSelectionDropdown(bool showToggle);
+};
+
+} // End of namespace BladeRunner
+
+#endif