include/wx/gdicmn.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gdicmn.h
   3 // Purpose:     Common GDI classes, types and declarations
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_GDICMNH__
  13 #define _WX_GDICMNH__
  14
  15 // ---------------------------------------------------------------------------
  16 // headers
  17 // ---------------------------------------------------------------------------
  18
  19 #ifdef __GNUG__
  20     #pragma interface "gdicmn.h"
  21 #endif
  22
  23 #include "wx/object.h"
  24 #include "wx/list.h"
  25 #include "wx/hash.h"
  26 #include "wx/string.h"
  27 #include "wx/setup.h"
  28 #include "wx/colour.h"
  29
  30 // ---------------------------------------------------------------------------
  31 // forward declarations
  32 // ---------------------------------------------------------------------------
  33
  34 class WXDLLEXPORT wxBitmap;
  35 class WXDLLEXPORT wxBrush;
  36 class WXDLLEXPORT wxColour;
  37 class WXDLLEXPORT wxCursor;
  38 class WXDLLEXPORT wxFont;
  39 class WXDLLEXPORT wxIcon;
  40 class WXDLLEXPORT wxPalette;
  41 class WXDLLEXPORT wxPen;
  42 class WXDLLEXPORT wxRegion;
  43 class WXDLLEXPORT wxString;
  44
  45 // ---------------------------------------------------------------------------
  46 // constants
  47 // ---------------------------------------------------------------------------
  48
  49 // Bitmap flags
  50 enum
  51 {
  52     wxBITMAP_TYPE_BMP = 1,
  53     wxBITMAP_TYPE_BMP_RESOURCE,
  54     wxBITMAP_TYPE_RESOURCE = wxBITMAP_TYPE_BMP_RESOURCE,
  55     wxBITMAP_TYPE_ICO,
  56     wxBITMAP_TYPE_ICO_RESOURCE,
  57     wxBITMAP_TYPE_CUR,
  58     wxBITMAP_TYPE_CUR_RESOURCE,
  59     wxBITMAP_TYPE_XBM,
  60     wxBITMAP_TYPE_XBM_DATA,
  61     wxBITMAP_TYPE_XPM,
  62     wxBITMAP_TYPE_XPM_DATA,
  63     wxBITMAP_TYPE_TIF,
  64     wxBITMAP_TYPE_TIF_RESOURCE,
  65     wxBITMAP_TYPE_GIF,
  66     wxBITMAP_TYPE_GIF_RESOURCE,
  67     wxBITMAP_TYPE_PNG,
  68     wxBITMAP_TYPE_PNG_RESOURCE,
  69     wxBITMAP_TYPE_JPEG,
  70     wxBITMAP_TYPE_JPEG_RESOURCE,
  71     wxBITMAP_TYPE_PNM,
  72     wxBITMAP_TYPE_PNM_RESOURCE,
  73     wxBITMAP_TYPE_PCX,
  74     wxBITMAP_TYPE_PCX_RESOURCE,
  75     wxBITMAP_TYPE_ANY = 50
  76 };
  77
  78 // Standard cursors
  79 enum wxStockCursor
  80 {
  81     wxCURSOR_NONE,          // should be 0
  82     wxCURSOR_ARROW,
  83     wxCURSOR_BULLSEYE,
  84     wxCURSOR_CHAR,
  85     wxCURSOR_CROSS,
  86     wxCURSOR_HAND,
  87     wxCURSOR_IBEAM,
  88     wxCURSOR_LEFT_BUTTON,
  89     wxCURSOR_MAGNIFIER,
  90     wxCURSOR_MIDDLE_BUTTON,
  91     wxCURSOR_NO_ENTRY,
  92     wxCURSOR_PAINT_BRUSH,
  93     wxCURSOR_PENCIL,
  94     wxCURSOR_POINT_LEFT,
  95     wxCURSOR_POINT_RIGHT,
  96     wxCURSOR_QUESTION_ARROW,
  97     wxCURSOR_RIGHT_BUTTON,
  98     wxCURSOR_SIZENESW,
  99     wxCURSOR_SIZENS,
 100     wxCURSOR_SIZENWSE,
 101     wxCURSOR_SIZEWE,
 102     wxCURSOR_SIZING,
 103     wxCURSOR_SPRAYCAN,
 104     wxCURSOR_WAIT,
 105     wxCURSOR_WATCH,
 106     wxCURSOR_BLANK,
 107 #ifdef __WXGTK__
 108     wxCURSOR_DEFAULT, // standard X11 cursor
 109 #endif
 110 #ifdef __X__
 111     // Not yet implemented for Windows
 112     wxCURSOR_CROSS_REVERSE,
 113     wxCURSOR_DOUBLE_ARROW,
 114     wxCURSOR_BASED_ARROW_UP,
 115     wxCURSOR_BASED_ARROW_DOWN,
 116 #endif // X11
 117
 118     wxCURSOR_MAX
 119 };
 120
 121 // ---------------------------------------------------------------------------
 122 // macros
 123 // ---------------------------------------------------------------------------
 124
 125 /* Useful macro for creating icons portably, for example:
 126
 127     wxIcon *icon = new wxICON(mondrian);
 128
 129   expands into:
 130
 131     wxIcon *icon = new wxIcon("mondrian");      // On wxMSW
 132     wxIcon *icon = new wxIcon(mondrian_xpm);    // On wxGTK
 133  */
 134
 135 #ifdef __WXMSW__
 136     // Load from a resource
 137     #define wxICON(X) wxIcon("" #X "")
 138 #elif defined(__WXPM__)
 139     // Load from a resource
 140     #define wxICON(X) wxIcon("" #X "")
 141 #elif defined(__WXGTK__)
 142     // Initialize from an included XPM
 143     #define wxICON(X) wxIcon( (const char**) X##_xpm )
 144 #elif defined(__WXMOTIF__)
 145     // Initialize from an included XPM
 146     #define wxICON(X) wxIcon( X##_xpm )
 147 #else
 148     // This will usually mean something on any platform
 149     #define wxICON(X) wxIcon("" #X "")
 150 #endif // platform
 151
 152 /* Another macro: this one is for portable creation of bitmaps. We assume that
 153    under Unix bitmaps live in XPMs and under Windows they're in ressources.
 154  */
 155
 156 #if defined(__WXMSW__) || defined(__WXPM__)
 157     #define wxBITMAP(name) wxBitmap(#name, wxBITMAP_TYPE_RESOURCE)
 158 #else // !(Windows || OS2)
 159     #define wxBITMAP(name) wxBitmap(name##_xpm, wxBITMAP_TYPE_XPM)
 160 #endif // platform
 161
 162 // ===========================================================================
 163 // classes
 164 // ===========================================================================
 165
 166 // ---------------------------------------------------------------------------
 167 // wxSize
 168 // ---------------------------------------------------------------------------
 169 class WXDLLEXPORT wxSize
 170 {
 171 public:
 172     // members are public for compatibility (don't use them directly,
 173     // especially that there names were chosen very unfortunately - they should
 174     // have been called width and height)
 175     long x;
 176     long y;
 177
 178     // constructors
 179     wxSize() { x = y = 0; }
 180     wxSize(long xx, long yy) { Set(xx, yy); }
 181
 182     // no copy ctor or assignment operator - the defaults are ok
 183     bool operator==(const wxSize& sz) const { return x == sz.x && y == sz.y; }
 184
 185     // FIXME are these really useful? If they're, we should have += &c as well
 186     wxSize operator+(const wxSize& sz) { return wxSize(x + sz.x, y + sz.y); }
 187     wxSize operator-(const wxSize& sz) { return wxSize(x - sz.x, y - sz.y); }
 188
 189     // accessors
 190     void Set(long xx, long yy) { x = xx; y = yy; }
 191     void SetWidth(long w) { x = w; }
 192     void SetHeight(long h) { y = h; }
 193
 194     long GetWidth() const { return x; }
 195     long GetHeight() const { return y; }
 196
 197     // compatibility
 198     long GetX() const { return x; }
 199     long GetY() const { return y; }
 200 };
 201
 202 // ---------------------------------------------------------------------------
 203 // Point classes: with real or integer coordinates
 204 // ---------------------------------------------------------------------------
 205
 206 class WXDLLEXPORT wxRealPoint
 207 {
 208 public:
 209     double x;
 210     double y;
 211
 212     wxRealPoint() { x = y = 0.0; };
 213     wxRealPoint(double xx, double yy) { x = xx; y = yy; };
 214
 215     wxRealPoint operator+(const wxRealPoint& pt) { return wxRealPoint(x + pt.x, y + pt.y); }
 216     wxRealPoint operator-(const wxRealPoint& pt) { return wxRealPoint(x - pt.x, y - pt.y); }
 217
 218     bool operator==(const wxRealPoint& pt) const { return x == pt.x && y == pt.y; }
 219 };
 220
 221 class WXDLLEXPORT wxPoint
 222 {
 223 public:
 224 #if defined(__WXMSW__) && !defined(__WIN32__)
 225     int x;
 226     int y;
 227 #else
 228     long x;
 229     long y;
 230 #endif
 231
 232     wxPoint() { x = y = 0; };
 233     wxPoint(long xx, long yy) { x = xx; y = yy; };
 234
 235     // no copy ctor or assignment operator - the defaults are ok
 236
 237     // comparison
 238     bool operator==(const wxPoint& p) const { return x == p.x && y == p.y; }
 239     bool operator!=(const wxPoint& p) const { return !(*this == p); }
 240
 241     // arithmetic operations (component wise)
 242     wxPoint operator+(const wxPoint& p) { return wxPoint(x + p.x, y + p.y); }
 243     wxPoint operator-(const wxPoint& p) { return wxPoint(x - p.x, y - p.y); }
 244
 245     wxPoint& operator+=(const wxPoint& p) { x += p.x; y += p.y; return *this; }
 246     wxPoint& operator-=(const wxPoint& p) { x -= p.x; y -= p.y; return *this; }
 247 };
 248
 249 #if WXWIN_COMPATIBILITY
 250     #define wxIntPoint wxPoint
 251     #define wxRectangle wxRect
 252 #endif // WXWIN_COMPATIBILITY
 253
 254 // ---------------------------------------------------------------------------
 255 // wxRect
 256 // ---------------------------------------------------------------------------
 257
 258 class WXDLLEXPORT wxRect
 259 {
 260 public:
 261     wxRect() { x = y = width = height = 0; }
 262     wxRect(long xx, long yy, long ww, long hh)
 263         { x = xx; y = yy; width = ww; height = hh; }
 264     wxRect(const wxPoint& topLeft, const wxPoint& bottomRight);
 265     wxRect(const wxPoint& pos, const wxSize& size);
 266
 267     // default copy ctor and assignment operators ok
 268
 269     long GetX() const { return x; }
 270     void SetX(long xx) { x = xx; }
 271
 272     long GetY() const { return y; }
 273     void SetY(long yy) { y = yy; }
 274
 275     long GetWidth() const { return width; }
 276     void SetWidth(long w) { width = w; }
 277
 278     long GetHeight() const { return height; }
 279     void SetHeight(long h) { height = h; }
 280
 281     wxPoint GetPosition() const { return wxPoint(x, y); }
 282     wxSize GetSize() const { return wxSize(width, height); }
 283
 284     // MFC-like functions
 285
 286     long GetLeft()   const { return x; }
 287     long GetTop()    const { return y; }
 288     long GetBottom() const { return y + height - 1; }
 289     long GetRight()  const { return x + width - 1; }
 290
 291     void SetLeft(long left) { x = left; }
 292     void SetRight(long right) { width = right - x + 1; }
 293     void SetTop(long top) { y = top; }
 294     void SetBottom(long bottom) { height = bottom - y + 1; }
 295
 296     bool operator==(const wxRect& rect) const;
 297     bool operator!=(const wxRect& rect) const { return !(*this == rect); }
 298
 299     bool Inside(int cx, int cy) const;
 300     wxRect operator + (const wxRect& rect) const;
 301     const wxRect& operator += (const wxRect& rect);
 302
 303 public:
 304     long x, y, width, height;
 305 };
 306
 307 // ---------------------------------------------------------------------------
 308 // Management of pens, brushes and fonts
 309 // ---------------------------------------------------------------------------
 310
 311 class WXDLLEXPORT wxPenList : public wxList
 312 {
 313     DECLARE_DYNAMIC_CLASS(wxPenList)
 314
 315 public:
 316     wxPenList() { }
 317     ~wxPenList();
 318
 319     void AddPen(wxPen *pen);
 320     void RemovePen(wxPen *pen);
 321     wxPen *FindOrCreatePen(const wxColour& colour, int width, int style);
 322 };
 323
 324 class WXDLLEXPORT wxBrushList : public wxList
 325 {
 326     DECLARE_DYNAMIC_CLASS(wxBrushList)
 327
 328 public:
 329     wxBrushList() { }
 330     ~wxBrushList();
 331
 332     void AddBrush(wxBrush *brush);
 333     void RemoveBrush(wxBrush *brush);
 334     wxBrush *FindOrCreateBrush(const wxColour& colour, int style);
 335 };
 336
 337 WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
 338
 339 class WXDLLEXPORT wxFontList : public wxList
 340 {
 341     DECLARE_DYNAMIC_CLASS(wxFontList)
 342
 343 public:
 344     wxFontList() { }
 345     ~wxFontList();
 346
 347     void AddFont(wxFont *font);
 348     void RemoveFont(wxFont *font);
 349     wxFont *FindOrCreateFont(int pointSize, int family, int style, int weight,
 350                              bool underline = FALSE,
 351                              const wxString& face = wxEmptyString);
 352 };
 353
 354 class WXDLLEXPORT wxColourDatabase : public wxList
 355 {
 356     DECLARE_CLASS(wxColourDatabase)
 357
 358 public:
 359     wxColourDatabase(int type);
 360     ~wxColourDatabase() ;
 361
 362     // Not const because it may add a name to the database
 363     wxColour *FindColour(const wxString& colour) ;
 364     wxString FindName(const wxColour& colour) const;
 365     void Initialize();
 366 };
 367
 368 class WXDLLEXPORT wxBitmapList : public wxList
 369 {
 370     DECLARE_DYNAMIC_CLASS(wxBitmapList)
 371
 372 public:
 373     wxBitmapList();
 374     ~wxBitmapList();
 375
 376     void AddBitmap(wxBitmap *bitmap);
 377     void RemoveBitmap(wxBitmap *bitmap);
 378 };
 379
 380 class WXDLLEXPORT wxResourceCache: public wxList
 381 {
 382 public:
 383     wxResourceCache() { }
 384     wxResourceCache(const unsigned int keyType) : wxList(keyType) { }
 385     ~wxResourceCache();
 386
 387 private:
 388     DECLARE_DYNAMIC_CLASS(wxResourceCache)
 389 };
 390
 391 // ---------------------------------------------------------------------------
 392 // global variables
 393 // ---------------------------------------------------------------------------
 394
 395 // Lists of GDI objects
 396 WXDLLEXPORT_DATA(extern wxPenList*)   wxThePenList;
 397 WXDLLEXPORT_DATA(extern wxBrushList*)   wxTheBrushList;
 398 WXDLLEXPORT_DATA(extern wxFontList*)    wxTheFontList;
 399 WXDLLEXPORT_DATA(extern wxBitmapList*)  wxTheBitmapList;
 400
 401 // Stock objects
 402 WXDLLEXPORT_DATA(extern wxFont*)      wxNORMAL_FONT;
 403 WXDLLEXPORT_DATA(extern wxFont*)      wxSMALL_FONT;
 404 WXDLLEXPORT_DATA(extern wxFont*)      wxITALIC_FONT;
 405 WXDLLEXPORT_DATA(extern wxFont*)      wxSWISS_FONT;
 406
 407 WXDLLEXPORT_DATA(extern wxPen*)      wxRED_PEN;
 408 WXDLLEXPORT_DATA(extern wxPen*)      wxCYAN_PEN;
 409 WXDLLEXPORT_DATA(extern wxPen*)      wxGREEN_PEN;
 410 WXDLLEXPORT_DATA(extern wxPen*)      wxBLACK_PEN;
 411 WXDLLEXPORT_DATA(extern wxPen*)      wxWHITE_PEN;
 412 WXDLLEXPORT_DATA(extern wxPen*)      wxTRANSPARENT_PEN;
 413 WXDLLEXPORT_DATA(extern wxPen*)      wxBLACK_DASHED_PEN;
 414 WXDLLEXPORT_DATA(extern wxPen*)      wxGREY_PEN;
 415 WXDLLEXPORT_DATA(extern wxPen*)      wxMEDIUM_GREY_PEN;
 416 WXDLLEXPORT_DATA(extern wxPen*)      wxLIGHT_GREY_PEN;
 417
 418 WXDLLEXPORT_DATA(extern wxBrush*)    wxBLUE_BRUSH;
 419 WXDLLEXPORT_DATA(extern wxBrush*)    wxGREEN_BRUSH;
 420 WXDLLEXPORT_DATA(extern wxBrush*)    wxWHITE_BRUSH;
 421 WXDLLEXPORT_DATA(extern wxBrush*)    wxBLACK_BRUSH;
 422 WXDLLEXPORT_DATA(extern wxBrush*)    wxGREY_BRUSH;
 423 WXDLLEXPORT_DATA(extern wxBrush*)    wxMEDIUM_GREY_BRUSH;
 424 WXDLLEXPORT_DATA(extern wxBrush*)    wxLIGHT_GREY_BRUSH;
 425 WXDLLEXPORT_DATA(extern wxBrush*)    wxTRANSPARENT_BRUSH;
 426 WXDLLEXPORT_DATA(extern wxBrush*)    wxCYAN_BRUSH;
 427 WXDLLEXPORT_DATA(extern wxBrush*)    wxRED_BRUSH;
 428
 429 WXDLLEXPORT_DATA(extern wxColour*)    wxBLACK;
 430 WXDLLEXPORT_DATA(extern wxColour*)    wxWHITE;
 431 WXDLLEXPORT_DATA(extern wxColour*)    wxRED;
 432 WXDLLEXPORT_DATA(extern wxColour*)    wxBLUE;
 433 WXDLLEXPORT_DATA(extern wxColour*)    wxGREEN;
 434 WXDLLEXPORT_DATA(extern wxColour*)    wxCYAN;
 435 WXDLLEXPORT_DATA(extern wxColour*)    wxLIGHT_GREY;
 436
 437 // 'Null' objects
 438 WXDLLEXPORT_DATA(extern wxBitmap)     wxNullBitmap;
 439 WXDLLEXPORT_DATA(extern wxIcon)       wxNullIcon;
 440 WXDLLEXPORT_DATA(extern wxCursor)     wxNullCursor;
 441 WXDLLEXPORT_DATA(extern wxPen)        wxNullPen;
 442 WXDLLEXPORT_DATA(extern wxBrush)      wxNullBrush;
 443 WXDLLEXPORT_DATA(extern wxPalette)     wxNullPalette;
 444 WXDLLEXPORT_DATA(extern wxFont)       wxNullFont;
 445 WXDLLEXPORT_DATA(extern wxColour)     wxNullColour;
 446
 447 // Stock cursors types
 448 WXDLLEXPORT_DATA(extern wxCursor*)    wxSTANDARD_CURSOR;
 449 WXDLLEXPORT_DATA(extern wxCursor*)    wxHOURGLASS_CURSOR;
 450 WXDLLEXPORT_DATA(extern wxCursor*)    wxCROSS_CURSOR;
 451
 452 WXDLLEXPORT_DATA(extern wxColourDatabase*)  wxTheColourDatabase;
 453
 454 WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
 455
 456 WXDLLEXPORT_DATA(extern const wxSize) wxDefaultSize;
 457 WXDLLEXPORT_DATA(extern const wxPoint) wxDefaultPosition;
 458
 459 // The list of objects which should be deleted
 460 WXDLLEXPORT_DATA(extern wxList) wxPendingDelete;
 461
 462 // ---------------------------------------------------------------------------
 463 // global functions
 464 // ---------------------------------------------------------------------------
 465
 466 // resource management
 467 extern void WXDLLEXPORT wxInitializeStockObjects();
 468 extern void WXDLLEXPORT wxInitializeStockLists();
 469 extern void WXDLLEXPORT wxDeleteStockObjects();
 470 extern void WXDLLEXPORT wxDeleteStockLists();
 471
 472 // is the display colour (or monochrome)?
 473 extern bool WXDLLEXPORT wxColourDisplay();
 474
 475 // Returns depth of screen
 476 extern int WXDLLEXPORT wxDisplayDepth();
 477 #define wxGetDisplayDepth wxDisplayDepth
 478
 479 // get the diaplay size
 480 extern void WXDLLEXPORT wxDisplaySize(int *width, int *height);
 481 extern wxSize WXDLLEXPORT wxGetDisplaySize();
 482
 483 // set global cursor
 484 extern void WXDLLEXPORT wxSetCursor(const wxCursor& cursor);
 485
 486 #endif
 487     // _WX_GDICMNH__