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 WXDLLIMPEXP_FWD_CORE 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(wxWindow* win, wxDC& dc, const wxRect& rect, int flags = 0);
  42
  43     virtual void DrawLabel(wxDC& dc,
  44                            const wxString& label,
  45                            const wxRect& rect,
  46                            int flags = 0,
  47                            int alignment = wxALIGN_LEFT | wxALIGN_TOP,
  48                            int indexAccel = -1,
  49                            wxRect *rectBounds = NULL);
  50     virtual void DrawButtonLabel(wxDC& dc,
  51                                  const wxString& label,
  52                                  const wxBitmap& image,
  53                                  const wxRect& rect,
  54                                  int flags = 0,
  55                                  int alignment = wxALIGN_LEFT | wxALIGN_TOP,
  56                                  int indexAccel = -1,
  57                                  wxRect *rectBounds = NULL);
  58
  59
  60     virtual void DrawBorder(wxDC& dc,
  61                             wxBorder border,
  62                             const wxRect& rect,
  63                             int flags = 0,
  64                             wxRect *rectIn = NULL);
  65     virtual void DrawTextBorder(wxDC& dc,
  66                                 wxBorder border,
  67                                 const wxRect& rect,
  68                                 int flags = 0,
  69                                 wxRect *rectIn = NULL);
  70
  71     virtual void DrawHorizontalLine(wxDC& dc,
  72                                     wxCoord y, wxCoord x1, wxCoord x2);
  73     virtual void DrawVerticalLine(wxDC& dc,
  74                                   wxCoord x, wxCoord y1, wxCoord y2);
  75     virtual void DrawFrame(wxDC& dc,
  76                            const wxString& label,
  77                            const wxRect& rect,
  78                            int flags = 0,
  79                            int alignment = wxALIGN_LEFT,
  80                            int indexAccel = -1);
  81
  82
  83     virtual void DrawItem(wxDC& dc,
  84                           const wxString& label,
  85                           const wxRect& rect,
  86                           int flags = 0);
  87     virtual void DrawCheckItem(wxDC& dc,
  88                                const wxString& label,
  89                                const wxBitmap& bitmap,
  90                                const wxRect& rect,
  91                                int flags = 0);
  92
  93     virtual void DrawCheckButton(wxDC& dc,
  94                                  const wxString& label,
  95                                  const wxBitmap& bitmap,
  96                                  const wxRect& rect,
  97                                  int flags = 0,
  98                                  wxAlignment align = wxALIGN_LEFT,
  99                                  int indexAccel = -1);
 100     virtual void DrawRadioButton(wxDC& dc,
 101                                  const wxString& label,
 102                                  const wxBitmap& bitmap,
 103                                  const wxRect& rect,
 104                                  int flags = 0,
 105                                  wxAlignment align = wxALIGN_LEFT,
 106                                  int indexAccel = -1);
 107
 108     virtual void DrawScrollbarArrow(wxDC& dc,
 109                                     wxDirection dir,
 110                                     const wxRect& rect,
 111                                     int flags = 0);
 112     virtual void DrawScrollCorner(wxDC& dc,
 113                                   const wxRect& rect);
 114
 115 #if wxUSE_TEXTCTRL
 116     virtual void DrawTextLine(wxDC& dc,
 117                               const wxString& text,
 118                               const wxRect& rect,
 119                               int selStart = -1,
 120                               int selEnd = -1,
 121                               int flags = 0);
 122
 123     virtual void DrawLineWrapMark(wxDC& dc, const wxRect& rect);
 124
 125     virtual wxRect GetTextTotalArea(const wxTextCtrl *text,
 126                                     const wxRect& rect) const;
 127     virtual wxRect GetTextClientArea(const wxTextCtrl *text,
 128                                      const wxRect& rect,
 129                                      wxCoord *extraSpaceBeyond) const;
 130 #endif // wxUSE_TEXTCTRL
 131
 132     virtual wxRect GetBorderDimensions(wxBorder border) const;
 133
 134     virtual bool AreScrollbarsInsideBorder() const;
 135
 136     virtual void AdjustSize(wxSize *size, const wxWindow *window);
 137
 138     virtual wxCoord GetListboxItemHeight(wxCoord fontHeight);
 139
 140 #if wxUSE_STATUSBAR
 141     virtual void DrawStatusField(wxDC& dc,
 142                                  const wxRect& rect,
 143                                  const wxString& label,
 144                                  int flags = 0, int style = 0);
 145
 146     virtual wxSize GetStatusBarBorders() const;
 147
 148     virtual wxCoord GetStatusBarBorderBetweenFields() const;
 149
 150     virtual wxSize GetStatusBarFieldMargins() const;
 151 #endif // wxUSE_STATUSBAR
 152
 153     virtual wxCoord GetCheckItemMargin() const { return 0; }
 154
 155
 156     virtual void DrawFrameTitleBar(wxDC& dc,
 157                                    const wxRect& rect,
 158                                    const wxString& title,
 159                                    const wxIcon& icon,
 160                                    int flags,
 161                                    int specialButton = 0,
 162                                    int specialButtonFlag = 0);
 163     virtual void DrawFrameBorder(wxDC& dc,
 164                                  const wxRect& rect,
 165                                  int flags);
 166     virtual void DrawFrameBackground(wxDC& dc,
 167                                      const wxRect& rect,
 168                                      int flags);
 169     virtual void DrawFrameTitle(wxDC& dc,
 170                                 const wxRect& rect,
 171                                 const wxString& title,
 172                                 int flags);
 173     virtual void DrawFrameIcon(wxDC& dc,
 174                                const wxRect& rect,
 175                                const wxIcon& icon,
 176                                int flags);
 177     virtual void DrawFrameButton(wxDC& dc,
 178                                  wxCoord x, wxCoord y,
 179                                  int button,
 180                                  int flags = 0);
 181
 182     virtual wxRect GetFrameClientArea(const wxRect& rect, int flags) const;
 183
 184     virtual wxSize GetFrameTotalSize(const wxSize& clientSize, int flags) const;
 185
 186     virtual wxSize GetFrameMinSize(int flags) const;
 187
 188     virtual wxSize GetFrameIconSize() const;
 189
 190     virtual int HitTestFrame(const wxRect& rect,
 191                              const wxPoint& pt,
 192                              int flags = 0) const;
 193 protected:
 194     // various constants
 195     enum ArrowDirection
 196     {
 197         Arrow_Left,
 198         Arrow_Right,
 199         Arrow_Up,
 200         Arrow_Down,
 201         Arrow_Max
 202     };
 203
 204     enum ArrowStyle
 205     {
 206         Arrow_Normal,
 207         Arrow_Disabled,
 208         Arrow_Pressed,
 209         Arrow_Inverted,
 210         Arrow_InvertedDisabled,
 211         Arrow_StateMax
 212     };
 213
 214     enum FrameButtonType
 215     {
 216         FrameButton_Close,
 217         FrameButton_Minimize,
 218         FrameButton_Maximize,
 219         FrameButton_Restore,
 220         FrameButton_Help,
 221         FrameButton_Max
 222     };
 223
 224     enum IndicatorType
 225     {
 226         IndicatorType_Check,
 227         IndicatorType_Radio,
 228         IndicatorType_MaxCtrl,
 229         IndicatorType_Menu = IndicatorType_MaxCtrl,
 230         IndicatorType_Max
 231     };
 232
 233     enum IndicatorState
 234     {
 235         IndicatorState_Normal,
 236         IndicatorState_Pressed, // this one is for check/radioboxes
 237         IndicatorState_Disabled,
 238         IndicatorState_MaxCtrl,
 239
 240         // the rest of the states are valid for menu items only
 241         IndicatorState_Selected = IndicatorState_Pressed,
 242         IndicatorState_SelectedDisabled = IndicatorState_MaxCtrl,
 243         IndicatorState_MaxMenu
 244     };
 245
 246     enum IndicatorStatus
 247     {
 248         IndicatorStatus_Checked,
 249         IndicatorStatus_Unchecked,
 250         IndicatorStatus_Undetermined,
 251         IndicatorStatus_Max
 252     };
 253
 254     // translate the appropriate bits in flags to the above enum elements
 255     static void GetIndicatorsFromFlags(int flags,
 256                                        IndicatorState& state,
 257                                        IndicatorStatus& status);
 258
 259     // translate wxDirection to ArrowDirection
 260     static ArrowDirection GetArrowDirection(wxDirection dir);
 261
 262
 263     // fill the rectangle with a brush of given colour (must be valid)
 264     void DrawSolidRect(wxDC& dc, const wxColour& col, const wxRect& rect);
 265
 266
 267     // all the functions in this section adjust the rect parameter to
 268     // correspond to the interiour of the drawn area
 269
 270         // draw complete rectangle
 271     void DrawRect(wxDC& dc, wxRect *rect, const wxPen& pen);
 272
 273         // draw the rectange using the first pen for the left and top sides
 274         // and the second one for the bottom and right ones
 275     void DrawShadedRect(wxDC& dc, wxRect *rect,
 276                         const wxPen& pen1, const wxPen& pen2);
 277
 278         // border drawing routines, may be overridden in the derived class
 279     virtual void DrawRaisedBorder(wxDC& dc, wxRect *rect);
 280     virtual void DrawSunkenBorder(wxDC& dc, wxRect *rect);
 281     virtual void DrawAntiSunkenBorder(wxDC& dc, wxRect *rect);
 282     virtual void DrawBoxBorder(wxDC& dc, wxRect *rect);
 283     virtual void DrawStaticBorder(wxDC& dc, wxRect *rect);
 284     virtual void DrawExtraBorder(wxDC& dc, wxRect *rect);
 285
 286
 287     // draw the frame with non-empty label inside the given rectText
 288     virtual void DrawFrameWithLabel(wxDC& dc,
 289                                     const wxString& label,
 290                                     const wxRect& rectFrame,
 291                                     const wxRect& rectText,
 292                                     int flags,
 293                                     int alignment,
 294                                     int indexAccel);
 295
 296     // draw the (static box) frame without the part corresponding to rectLabel
 297     void DrawFrameWithoutLabel(wxDC& dc,
 298                                const wxRect& rectFrame,
 299                                const wxRect& rectLabel);
 300
 301
 302     // draw the bitmap for a check item (which is by default the same as check
 303     // box one but may be different)
 304     virtual void DrawCheckItemBitmap(wxDC& dc,
 305                                      const wxBitmap& bitmap,
 306                                      const wxRect& rect,
 307                                      int flags);
 308
 309     // common routine for drawing check and radio buttons
 310     void DrawCheckOrRadioButton(wxDC& dc,
 311                                 const wxString& label,
 312                                 const wxBitmap& bitmap,
 313                                 const wxRect& rect,
 314                                 int flags,
 315                                 wxAlignment align,
 316                                 int indexAccel);
 317
 318     // return the check/radio bitmap for the given flags
 319     virtual wxBitmap GetRadioBitmap(int flags) = 0;
 320     virtual wxBitmap GetCheckBitmap(int flags) = 0;
 321
 322     // return the frame icon bitmap
 323     virtual wxBitmap GetFrameButtonBitmap(FrameButtonType type) = 0;
 324
 325     // get the width of either normal or resizable frame border depending on
 326     // whether flags contains wxTOPLEVEL_RESIZEABLE bit
 327     //
 328     // notice that these methods only make sense with standard border drawing
 329     // code which uses the borders of the same width on all sides, this is why
 330     // they are only present here and not in wxRenderer itself
 331     virtual int GetFrameBorderWidth(int flags) const;
 332
 333 #if wxUSE_TEXTCTRL
 334     // return the width of the border around the text area in the text control
 335     virtual int GetTextBorderWidth(const wxTextCtrl *text) const;
 336 #endif // wxUSE_TEXTCTRL
 337
 338     // GDI objects we often use
 339     wxPen m_penBlack,
 340           m_penDarkGrey,
 341           m_penLightGrey,
 342           m_penHighlight;
 343
 344     wxFont m_titlebarFont;
 345
 346     // the colours we use, they never change currently so we don't have to ever
 347     // update m_penXXX objects above
 348     const wxColourScheme * const m_scheme;
 349
 350     wxDECLARE_NO_COPY_CLASS(wxStdRenderer);
 351 };
 352
 353 #endif // _WX_UNIV_STDREND_H_