include/wx/univ/stdrend.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/univ/stdrend.h
   3 // Purpose:     wxStdRenderer class declaration
   4 // Author:      Vadim Zeitlin
   5 // Created:     2006-09-18
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_UNIV_STDREND_H_
  12 #define _WX_UNIV_STDREND_H_
  13
  14 #include "wx/univ/renderer.h"
  15 #include "wx/pen.h"
  16
  17 class WXDLLEXPORT wxColourScheme;
  18
  19 // ----------------------------------------------------------------------------
  20 // wxStdRenderer: implements as much of wxRenderer API as possible generically
  21 // ----------------------------------------------------------------------------
  22
  23 class wxStdRenderer : public wxRenderer
  24 {
  25 public:
  26     // the renderer will use the given scheme, whose lifetime must be at least
  27     // as long as of this object itself, to choose the colours for drawing
  28     wxStdRenderer(const wxColourScheme *scheme);
  29
  30     virtual void DrawBackground(wxDC& dc,
  31                                 const wxColour& col,
  32                                 const wxRect& rect,
  33                                 int flags = 0,
  34                                 wxWindow *window = NULL);
  35     virtual void DrawButtonSurface(wxDC& dc,
  36                                    const wxColour& col,
  37                                    const wxRect& rect,
  38                                    int flags);
  39
  40
  41     virtual void DrawFocusRect(wxDC& dc, const wxRect& rect);
  42     virtual void DrawLabel(wxDC& dc,
  43                            const wxString& label,
  44                            const wxRect& rect,
  45                            int flags = 0,
  46                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
  47                            int indexAccel = -1,
  48                            wxRect *rectBounds = NULL);
  49     virtual void DrawButtonLabel(wxDC& dc,
  50                                  const wxString& label,
  51                                  const wxBitmap& image,
  52                                  const wxRect& rect,
  53                                  int flags = 0,
  54                                  int alignment = wxALIGN_LEFT | wxALIGN_TOP,
  55                                  int indexAccel = -1,
  56                                  wxRect *rectBounds = NULL);
  57
  58
  59     virtual void DrawBorder(wxDC& dc,
  60                             wxBorder border,
  61                             const wxRect& rect,
  62                             int flags = 0,
  63                             wxRect *rectIn = NULL);
  64     virtual void DrawTextBorder(wxDC& dc,
  65                                 wxBorder border,
  66                                 const wxRect& rect,
  67                                 int flags = 0,
  68                                 wxRect *rectIn = NULL);
  69
  70     virtual void DrawHorizontalLine(wxDC& dc,
  71                                     wxCoord y, wxCoord x1, wxCoord x2);
  72     virtual void DrawVerticalLine(wxDC& dc,
  73                                   wxCoord x, wxCoord y1, wxCoord y2);
  74     virtual void DrawFrame(wxDC& dc,
  75                            const wxString& label,
  76                            const wxRect& rect,
  77                            int flags = 0,
  78                            int alignment = wxALIGN_LEFT,
  79                            int indexAccel = -1);
  80
  81
  82     virtual void DrawItem(wxDC& dc,
  83                           const wxString& label,
  84                           const wxRect& rect,
  85                           int flags = 0);
  86     virtual void DrawCheckItem(wxDC& dc,
  87                                const wxString& label,
  88                                const wxBitmap& bitmap,
  89                                const wxRect& rect,
  90                                int flags = 0);
  91
  92     virtual void DrawCheckButton(wxDC& dc,
  93                                  const wxString& label,
  94                                  const wxBitmap& bitmap,
  95                                  const wxRect& rect,
  96                                  int flags = 0,
  97                                  wxAlignment align = wxALIGN_LEFT,
  98                                  int indexAccel = -1);
  99     virtual void DrawRadioButton(wxDC& dc,
 100                                  const wxString& label,
 101                                  const wxBitmap& bitmap,
 102                                  const wxRect& rect,
 103                                  int flags = 0,
 104                                  wxAlignment align = wxALIGN_LEFT,
 105                                  int indexAccel = -1);
 106
 107     virtual void DrawScrollbarArrow(wxDC& dc,
 108                                     wxDirection dir,
 109                                     const wxRect& rect,
 110                                     int flags = 0);
 111     virtual void DrawScrollCorner(wxDC& dc,
 112                                   const wxRect& rect);
 113
 114 #if wxUSE_TEXTCTRL
 115     virtual void DrawTextLine(wxDC& dc,
 116                               const wxString& text,
 117                               const wxRect& rect,
 118                               int selStart = -1,
 119                               int selEnd = -1,
 120                               int flags = 0);
 121
 122     virtual void DrawLineWrapMark(wxDC& dc, const wxRect& rect);
 123
 124     virtual wxRect GetTextTotalArea(const wxTextCtrl *text,
 125                                     const wxRect& rect) const;
 126     virtual wxRect GetTextClientArea(const wxTextCtrl *text,
 127                                      const wxRect& rect,
 128                                      wxCoord *extraSpaceBeyond) const;
 129 #endif // wxUSE_TEXTCTRL
 130
 131     virtual wxRect GetBorderDimensions(wxBorder border) const;
 132
 133     virtual bool AreScrollbarsInsideBorder() const;
 134
 135     virtual void AdjustSize(wxSize *size, const wxWindow *window);
 136
 137     virtual wxCoord GetListboxItemHeight(wxCoord fontHeight);
 138
 139 #if wxUSE_SCROLLBAR
 140     virtual wxRect GetScrollbarRect(const wxScrollBar *scrollbar,
 141                                     wxScrollBar::Element elem,
 142                                     int thumbPos = -1) const;
 143
 144     virtual wxCoord GetScrollbarSize(const wxScrollBar *scrollbar);
 145
 146     virtual wxHitTest HitTestScrollbar(const wxScrollBar *scrollbar,
 147                                        const wxPoint& pt) const;
 148
 149     virtual wxCoord ScrollbarToPixel(const wxScrollBar *scrollbar,
 150                                      int thumbPos = -1);
 151     virtual int PixelToScrollbar(const wxScrollBar *scrollbar, wxCoord coord);
 152 #endif // wxUSE_SCROLLBAR
 153
 154 #if wxUSE_STATUSBAR
 155     virtual void DrawStatusField(wxDC& dc,
 156                                  const wxRect& rect,
 157                                  const wxString& label,
 158                                  int flags = 0, int style = 0);
 159
 160     virtual wxSize GetStatusBarBorders(wxCoord *borderBetweenFields) const;
 161 #endif // wxUSE_STATUSBAR
 162
 163     virtual wxCoord GetCheckItemMargin() const { return 0; }
 164
 165 protected:
 166     // various constants
 167     enum ArrowDirection
 168     {
 169         Arrow_Left,
 170         Arrow_Right,
 171         Arrow_Up,
 172         Arrow_Down,
 173         Arrow_Max
 174     };
 175
 176     enum ArrowStyle
 177     {
 178         Arrow_Normal,
 179         Arrow_Disabled,
 180         Arrow_Pressed,
 181         Arrow_Inverted,
 182         Arrow_InvertedDisabled,
 183         Arrow_StateMax
 184     };
 185
 186     enum IndicatorType
 187     {
 188         IndicatorType_Check,
 189         IndicatorType_Radio,
 190         IndicatorType_MaxCtrl,
 191         IndicatorType_Menu = IndicatorType_MaxCtrl,
 192         IndicatorType_Max
 193     };
 194
 195     enum IndicatorState
 196     {
 197         IndicatorState_Normal,
 198         IndicatorState_Pressed, // this one is for check/radioboxes
 199         IndicatorState_Disabled,
 200         IndicatorState_MaxCtrl,
 201
 202         // the rest of the states are valid for menu items only
 203         IndicatorState_Selected = IndicatorState_Pressed,
 204         IndicatorState_SelectedDisabled = IndicatorState_MaxCtrl,
 205         IndicatorState_MaxMenu
 206     };
 207
 208     enum IndicatorStatus
 209     {
 210         IndicatorStatus_Checked,
 211         IndicatorStatus_Unchecked,
 212         IndicatorStatus_Undetermined,
 213         IndicatorStatus_Max
 214     };
 215
 216     // translate the appropriate bits in flags to the above enum elements
 217     static void GetIndicatorsFromFlags(int flags,
 218                                        IndicatorState& state,
 219                                        IndicatorStatus& status);
 220
 221     // translate wxDirection to ArrowDirection
 222     static ArrowDirection GetArrowDirection(wxDirection dir);
 223
 224
 225     // fill the rectangle with a brush of given colour (must be valid)
 226     void DrawSolidRect(wxDC& dc, const wxColour& col, const wxRect& rect);
 227
 228
 229     // all the functions in this section adjust the rect parameter to
 230     // correspond to the interiour of the drawn area
 231
 232         // draw complete rectangle
 233     void DrawRect(wxDC& dc, wxRect *rect, const wxPen& pen);
 234
 235         // draw the rectange using the first pen for the left and top sides
 236         // and the second one for the bottom and right ones
 237     void DrawShadedRect(wxDC& dc, wxRect *rect,
 238                         const wxPen& pen1, const wxPen& pen2);
 239
 240         // border drawing routines, may be overridden in the derived class
 241     virtual void DrawRaisedBorder(wxDC& dc, wxRect *rect);
 242     virtual void DrawSunkenBorder(wxDC& dc, wxRect *rect);
 243     virtual void DrawAntiSunkenBorder(wxDC& dc, wxRect *rect);
 244     virtual void DrawFrameBorder(wxDC& dc, wxRect *rect);
 245
 246
 247     // draw the frame with non-empty label inside the given rectText
 248     virtual void DrawFrameWithLabel(wxDC& dc,
 249                                     const wxString& label,
 250                                     const wxRect& rectFrame,
 251                                     const wxRect& rectText,
 252                                     int flags,
 253                                     int alignment,
 254                                     int indexAccel);
 255
 256     // draw the (static box) frame without the part corresponding to rectLabel
 257     void DrawFrameWithoutLabel(wxDC& dc,
 258                                const wxRect& rectFrame,
 259                                const wxRect& rectLabel);
 260
 261
 262     // draw the bitmap for a check item (which is by default the same as check
 263     // box one but may be different)
 264     virtual void DrawCheckItemBitmap(wxDC& dc,
 265                                      const wxBitmap& bitmap,
 266                                      const wxRect& rect,
 267                                      int flags);
 268
 269     // common routine for drawing check and radio buttons
 270     void DrawCheckOrRadioButton(wxDC& dc,
 271                                 const wxString& label,
 272                                 const wxBitmap& bitmap,
 273                                 const wxRect& rect,
 274                                 int flags,
 275                                 wxAlignment align,
 276                                 int indexAccel);
 277
 278     // return the check/radio bitmap for the given flags
 279     virtual wxBitmap GetRadioBitmap(int flags) = 0;
 280     virtual wxBitmap GetCheckBitmap(int flags) = 0;
 281
 282 #if wxUSE_TEXTCTRL
 283     // return the width of the border around the text area in the text control
 284     virtual int GetTextBorderWidth(const wxTextCtrl *text) const;
 285 #endif // wxUSE_TEXTCTRL
 286
 287     // return the starting and ending positions, in pixels, of the thumb of a
 288     // scrollbar with the given logical position, thumb size and range and the
 289     // given physical length
 290     static void GetScrollBarThumbSize(wxCoord length,
 291                                       int thumbPos,
 292                                       int thumbSize,
 293                                       int range,
 294                                       wxCoord *thumbStart,
 295                                       wxCoord *thumbEnd);
 296
 297     // GDI objects we often use
 298     wxPen m_penBlack,
 299           m_penDarkGrey,
 300           m_penLightGrey,
 301           m_penHighlight;
 302
 303     // the colours we use, they never change currently so we don't have to ever
 304     // update m_penXXX objects above
 305     const wxColourScheme * const m_scheme;
 306
 307     DECLARE_NO_COPY_CLASS(wxStdRenderer)
 308 };
 309
 310 #endif // _WX_UNIV_STDREND_H_