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, int flags = 0);
  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_STATUSBAR
 140     virtual void DrawStatusField(wxDC& dc,
 141                                  const wxRect& rect,
 142                                  const wxString& label,
 143                                  int flags = 0, int style = 0);
 144
 145     virtual wxSize GetStatusBarBorders() const;
 146
 147     virtual wxCoord GetStatusBarBorderBetweenFields() const;
 148
 149     virtual wxSize GetStatusBarFieldMargins() const;
 150 #endif // wxUSE_STATUSBAR
 151
 152     virtual wxCoord GetCheckItemMargin() const { return 0; }
 153
 154
 155     virtual void DrawFrameTitleBar(wxDC& dc,
 156                                    const wxRect& rect,
 157                                    const wxString& title,
 158                                    const wxIcon& icon,
 159                                    int flags,
 160                                    int specialButton = 0,
 161                                    int specialButtonFlag = 0);
 162     virtual void DrawFrameBorder(wxDC& dc,
 163                                  const wxRect& rect,
 164                                  int flags);
 165     virtual void DrawFrameBackground(wxDC& dc,
 166                                      const wxRect& rect,
 167                                      int flags);
 168     virtual void DrawFrameTitle(wxDC& dc,
 169                                 const wxRect& rect,
 170                                 const wxString& title,
 171                                 int flags);
 172     virtual void DrawFrameIcon(wxDC& dc,
 173                                const wxRect& rect,
 174                                const wxIcon& icon,
 175                                int flags);
 176     virtual void DrawFrameButton(wxDC& dc,
 177                                  wxCoord x, wxCoord y,
 178                                  int button,
 179                                  int flags = 0);
 180
 181     virtual wxRect GetFrameClientArea(const wxRect& rect, int flags) const;
 182
 183     virtual wxSize GetFrameTotalSize(const wxSize& clientSize, int flags) const;
 184
 185     virtual wxSize GetFrameMinSize(int flags) const;
 186
 187     virtual wxSize GetFrameIconSize() const;
 188
 189     virtual int HitTestFrame(const wxRect& rect,
 190                              const wxPoint& pt,
 191                              int flags = 0) const;
 192 protected:
 193     // various constants
 194     enum ArrowDirection
 195     {
 196         Arrow_Left,
 197         Arrow_Right,
 198         Arrow_Up,
 199         Arrow_Down,
 200         Arrow_Max
 201     };
 202
 203     enum ArrowStyle
 204     {
 205         Arrow_Normal,
 206         Arrow_Disabled,
 207         Arrow_Pressed,
 208         Arrow_Inverted,
 209         Arrow_InvertedDisabled,
 210         Arrow_StateMax
 211     };
 212
 213     enum FrameButtonType
 214     {
 215         FrameButton_Close,
 216         FrameButton_Minimize,
 217         FrameButton_Maximize,
 218         FrameButton_Restore,
 219         FrameButton_Help,
 220         FrameButton_Max
 221     };
 222
 223     enum IndicatorType
 224     {
 225         IndicatorType_Check,
 226         IndicatorType_Radio,
 227         IndicatorType_MaxCtrl,
 228         IndicatorType_Menu = IndicatorType_MaxCtrl,
 229         IndicatorType_Max
 230     };
 231
 232     enum IndicatorState
 233     {
 234         IndicatorState_Normal,
 235         IndicatorState_Pressed, // this one is for check/radioboxes
 236         IndicatorState_Disabled,
 237         IndicatorState_MaxCtrl,
 238
 239         // the rest of the states are valid for menu items only
 240         IndicatorState_Selected = IndicatorState_Pressed,
 241         IndicatorState_SelectedDisabled = IndicatorState_MaxCtrl,
 242         IndicatorState_MaxMenu
 243     };
 244
 245     enum IndicatorStatus
 246     {
 247         IndicatorStatus_Checked,
 248         IndicatorStatus_Unchecked,
 249         IndicatorStatus_Undetermined,
 250         IndicatorStatus_Max
 251     };
 252
 253     // translate the appropriate bits in flags to the above enum elements
 254     static void GetIndicatorsFromFlags(int flags,
 255                                        IndicatorState& state,
 256                                        IndicatorStatus& status);
 257
 258     // translate wxDirection to ArrowDirection
 259     static ArrowDirection GetArrowDirection(wxDirection dir);
 260
 261
 262     // fill the rectangle with a brush of given colour (must be valid)
 263     void DrawSolidRect(wxDC& dc, const wxColour& col, const wxRect& rect);
 264
 265
 266     // all the functions in this section adjust the rect parameter to
 267     // correspond to the interiour of the drawn area
 268
 269         // draw complete rectangle
 270     void DrawRect(wxDC& dc, wxRect *rect, const wxPen& pen);
 271
 272         // draw the rectange using the first pen for the left and top sides
 273         // and the second one for the bottom and right ones
 274     void DrawShadedRect(wxDC& dc, wxRect *rect,
 275                         const wxPen& pen1, const wxPen& pen2);
 276
 277         // border drawing routines, may be overridden in the derived class
 278     virtual void DrawRaisedBorder(wxDC& dc, wxRect *rect);
 279     virtual void DrawSunkenBorder(wxDC& dc, wxRect *rect);
 280     virtual void DrawAntiSunkenBorder(wxDC& dc, wxRect *rect);
 281     virtual void DrawBoxBorder(wxDC& dc, wxRect *rect);
 282     virtual void DrawStaticBorder(wxDC& dc, wxRect *rect);
 283     virtual void DrawExtraBorder(wxDC& dc, wxRect *rect);
 284
 285
 286     // draw the frame with non-empty label inside the given rectText
 287     virtual void DrawFrameWithLabel(wxDC& dc,
 288                                     const wxString& label,
 289                                     const wxRect& rectFrame,
 290                                     const wxRect& rectText,
 291                                     int flags,
 292                                     int alignment,
 293                                     int indexAccel);
 294
 295     // draw the (static box) frame without the part corresponding to rectLabel
 296     void DrawFrameWithoutLabel(wxDC& dc,
 297                                const wxRect& rectFrame,
 298                                const wxRect& rectLabel);
 299
 300
 301     // draw the bitmap for a check item (which is by default the same as check
 302     // box one but may be different)
 303     virtual void DrawCheckItemBitmap(wxDC& dc,
 304                                      const wxBitmap& bitmap,
 305                                      const wxRect& rect,
 306                                      int flags);
 307
 308     // common routine for drawing check and radio buttons
 309     void DrawCheckOrRadioButton(wxDC& dc,
 310                                 const wxString& label,
 311                                 const wxBitmap& bitmap,
 312                                 const wxRect& rect,
 313                                 int flags,
 314                                 wxAlignment align,
 315                                 int indexAccel);
 316
 317     // return the check/radio bitmap for the given flags
 318     virtual wxBitmap GetRadioBitmap(int flags) = 0;
 319     virtual wxBitmap GetCheckBitmap(int flags) = 0;
 320
 321     // return the frame icon bitmap
 322     virtual wxBitmap GetFrameButtonBitmap(FrameButtonType type) = 0;
 323
 324     // get the width of either normal or resizeable frame border depending on
 325     // whether flags contains wxTOPLEVEL_RESIZEABLE bit
 326     //
 327     // notice that these methods only make sense with standard border drawing
 328     // code which uses the borders of the same width on all sides, this is why
 329     // they are only present here and not in wxRenderer itself
 330     virtual int GetFrameBorderWidth(int flags) const;
 331
 332 #if wxUSE_TEXTCTRL
 333     // return the width of the border around the text area in the text control
 334     virtual int GetTextBorderWidth(const wxTextCtrl *text) const;
 335 #endif // wxUSE_TEXTCTRL
 336
 337     // GDI objects we often use
 338     wxPen m_penBlack,
 339           m_penDarkGrey,
 340           m_penLightGrey,
 341           m_penHighlight;
 342
 343     wxFont m_titlebarFont;
 344
 345     // the colours we use, they never change currently so we don't have to ever
 346     // update m_penXXX objects above
 347     const wxColourScheme * const m_scheme;
 348
 349     DECLARE_NO_COPY_CLASS(wxStdRenderer)
 350 };
 351
 352 #endif // _WX_UNIV_STDREND_H_