1 /* ScummVM - Graphic Adventure Engine 2 * 3 * ScummVM is the legal property of its developers, whose names 4 * are too numerous to list here. Please refer to the COPYRIGHT 5 * file distributed with this source distribution. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef AGS_SHARED_GUI_GUI_SLIDER_H 24 #define AGS_SHARED_GUI_GUI_SLIDER_H 25 26 #include "ags/lib/std/vector.h" 27 #include "ags/shared/gui/gui_object.h" 28 29 namespace AGS3 { 30 namespace AGS { 31 namespace Shared { 32 33 class GUISlider : public GUIObject { 34 public: 35 GUISlider(); 36 37 // Tells if the slider is horizontal (otherwise - vertical) 38 bool IsHorizontal() const; 39 bool IsOverControl(int x, int y, int leeway) const override; 40 41 // Operations 42 void Draw(Bitmap *ds) override; 43 44 // Events 45 bool OnMouseDown() override; 46 void OnMouseMove(int xp, int yp) override; 47 void OnMouseUp() override; 48 49 // Serialization 50 void ReadFromFile(Stream *in, GuiVersion gui_version) override; 51 void WriteToFile(Stream *out) const override; 52 void ReadFromSavegame(Stream *in, GuiSvgVersion svg_ver) override; 53 void WriteToSavegame(Stream *out) const override; 54 55 // TODO: these members are currently public; hide them later 56 public: 57 int32_t MinValue; 58 int32_t MaxValue; 59 int32_t Value; 60 int32_t BgImage; 61 int32_t HandleImage; 62 int32_t HandleOffset; 63 bool IsMousePressed; 64 65 private: 66 // The following variables are not persisted on disk 67 // Cached coordinates of slider handle 68 Rect _cachedHandle; 69 }; 70 71 } // namespace Shared 72 } // namespace AGS 73 } // namespace AGS3 74 75 #endif 76