nux-1.14.0
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00001 /* 00002 * Copyright 2010 Inalogic® Inc. 00003 * 00004 * This program is free software: you can redistribute it and/or modify it 00005 * under the terms of the GNU Lesser General Public License, as 00006 * published by the Free Software Foundation; either version 2.1 or 3.0 00007 * of the License. 00008 * 00009 * This program is distributed in the hope that it will be useful, but 00010 * WITHOUT ANY WARRANTY; without even the implied warranties of 00011 * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR 00012 * PURPOSE. See the applicable version of the GNU Lesser General Public 00013 * License for more details. 00014 * 00015 * You should have received a copy of both the GNU Lesser General Public 00016 * License along with this program. If not, see <http://www.gnu.org/licenses/> 00017 * 00018 * Authored by: Jay Taoko <jaytaoko@inalogic.com> 00019 * 00020 */ 00021 00022 00023 #ifndef SCROLLBAR_H 00024 #define SCROLLBAR_H 00025 00026 namespace nux 00027 { 00028 class ScrollView; 00029 class ScrollBar : public View //public ValuatorAbstraction 00030 { 00031 public: 00032 ScrollBar (NUX_FILE_LINE_PROTO); 00033 ~ScrollBar(); 00034 00035 private: 00036 virtual void Draw (GraphicsEngine &GfxContext, bool force_draw) = 0; 00037 virtual void DrawContent (GraphicsEngine &GfxContext, bool force_draw) = 0; 00038 virtual void PostDraw (GraphicsEngine &GfxContext, bool force_draw) = 0; 00039 00040 public: 00041 int visible() const 00042 { 00043 return m_visible; 00044 } 00045 void clear_visible() 00046 { 00047 m_visible = 0; 00048 } 00049 void set_visible() 00050 { 00051 m_visible = 1; 00052 } 00053 void resize (int x, int y, int w, int h) 00054 { 00055 SetGeometry (Geometry (x, y, w, h) ); 00056 } 00057 00058 void SetScrollUnit (int unit); 00059 int GetScrollUnit() const; 00060 00061 protected: 00062 virtual bool AcceptKeyNavFocus(); 00063 00064 int m_ScrollUnit; 00065 int m_visible; 00066 float visibility_percentage_; 00067 00068 friend class ScrollView; 00069 }; 00070 00071 00072 } 00073 00074 #endif // SCROLLBAR_H 00075 00076 00077