nux-1.16.0
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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 HSCROLLBAR_H 00024 #define HSCROLLBAR_H 00025 00026 #include "TimerProc.h" 00027 #include "ScrollBar.h" 00028 00029 namespace nux 00030 { 00031 00032 class HLayout; 00033 class VLayout; 00034 class Layout; 00035 00036 class HScrollBar : public ScrollBar //public ValuatorAbstraction 00037 { 00038 public: 00039 HScrollBar (NUX_FILE_LINE_PROTO); 00040 ~HScrollBar(); 00041 00042 virtual long ProcessEvent (IEvent &ievent, long TraverseInfo, long ProcessEventInfo); 00043 virtual Area* FindAreaUnderMouse(const Point& mouse_position, NuxEventType event_type); 00044 void DrawLeftTriangle (GraphicsEngine &GfxContext, int width, int height, const Geometry &geo, BasePainter &painter); 00045 void DrawRightTriangle (GraphicsEngine &GfxContext, int width, int height, const Geometry &geo, BasePainter &painter); 00046 00047 virtual void Draw (GraphicsEngine &GfxContext, bool force_draw); 00048 private: 00049 virtual void DrawContent (GraphicsEngine &GfxContext, bool force_draw) {}; 00050 virtual void PostDraw (GraphicsEngine &GfxContext, bool force_draw) {}; 00051 00052 void HScrollBarHandler (void *v); 00053 void ScrollRight (void *v); 00054 void ScrollLeft (void *v); 00055 void TrackLeft (void *v); 00056 void TrackRight (void *v); 00057 00058 public: 00059 void SetContainerSize (int x, int y, int w, int h); 00060 void SetContentSize (int x, int y, int w, int h); 00061 void SetContentOffset (float dx, float dy); 00062 void ComputeScrolling(); 00063 00065 // RECEIVERS // 00067 void SetValue (float value); 00068 void SetParameterName (const char *parameter_name); 00070 // EMITTERS // 00072 void RecvStartScrollRight (int x, int y, unsigned long button_flags, unsigned long key_flags); 00073 void RecvStartScrollLeft (int x, int y, unsigned long button_flags, unsigned long key_flags); 00074 void RecvEndScrollRight (int x, int y, unsigned long button_flags, unsigned long key_flags); 00075 void RecvEndScrollLeft (int x, int y, unsigned long button_flags, unsigned long key_flags); 00076 00077 void RecvTrackMouseDown (int x, int y, unsigned long button_flags, unsigned long key_flags); 00078 void RecvTrackMouseUp (int x, int y, unsigned long button_flags, unsigned long key_flags); 00079 void RecvTrackMouseDrag (int x, int y, int dx, int dy, unsigned long button_flags, unsigned long key_flags); 00080 00081 void OnSliderMouseDown (int x, int y, unsigned long button_flags, unsigned long key_flags); 00082 void OnSliderMouseUp (int x, int y, unsigned long button_flags, unsigned long key_flags); 00083 void OnSliderMouseDrag (int x, int y, int dx, int dy, unsigned long button_flags, unsigned long key_flags); 00084 00086 // SIGNALS // 00088 sigc::signal<void> sigClick; 00089 sigc::signal<void, float, int> OnScrollLeft; 00090 sigc::signal<void, float, int> OnScrollRight; 00091 sigc::signal<void> sigHScrollBarSliderMouseDown; 00092 00093 bool b_MouseDownTimer; 00094 bool b_MouseUpTimer; 00095 float m_color_factor; 00096 00097 protected: 00098 // When the Scrollbar is used standalone, it is necessary to call ComputeScrolling at the end of the layout. 00099 virtual long PostLayoutManagement (long LayoutResult); 00100 00101 bool AtMinimum(); 00102 bool AtMaximum(); 00103 00104 HLayout *hlayout; 00105 InputArea *_slider; 00106 InputArea *_scroll_left_button; 00107 InputArea *_scroll_right_button; 00108 InputArea *_track; 00109 00110 int content_width_; 00111 int content_height_; 00112 float content_offset_x_; 00113 float content_offset_y_; 00114 00115 int container_width_; 00116 int container_height_; 00117 00118 int m_TrackWidth; 00119 int m_TrackHeight; 00120 00121 int m_SlideBarOffsetX; 00122 int m_SlideBarOffsetY; 00123 00124 float stepX; 00125 float stepY; 00126 00127 int m_SliderDragPositionX; 00128 int m_SliderDragPositionY; 00129 00130 TimerFunctor *callback; 00131 TimerFunctor *left_callback; 00132 TimerFunctor *right_callback; 00133 TimerFunctor *trackleft_callback; 00134 TimerFunctor *trackright_callback; 00135 TimerHandle m_LeftTimerHandler; 00136 TimerHandle m_RightTimerHandler; 00137 TimerHandle m_TrackLeftTimerHandler; 00138 TimerHandle m_TrackRightTimerHandler; 00139 00140 Point m_TrackMouseCoord; 00141 friend class HLayout; 00142 friend class VLayout; 00143 friend class Layout; 00144 }; 00145 00146 } 00147 00148 #endif // HSCROLLBAR_H 00149 00150