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 #include "wx/font.h"
  30
  31 // ---------------------------------------------------------------------------
  32 // forward declarations
  33 // ---------------------------------------------------------------------------
  34
  35 class WXDLLEXPORT wxBitmap;
  36 class WXDLLEXPORT wxBrush;
  37 class WXDLLEXPORT wxColour;
  38 class WXDLLEXPORT wxCursor;
  39 class WXDLLEXPORT wxFont;
  40 class WXDLLEXPORT wxIcon;
  41 class WXDLLEXPORT wxPalette;
  42 class WXDLLEXPORT wxPen;
  43 class WXDLLEXPORT wxRegion;
  44 class WXDLLEXPORT wxString;
  45
  46 // ---------------------------------------------------------------------------
  47 // constants
  48 // ---------------------------------------------------------------------------
  49
  50 // Bitmap flags
  51 enum wxBitmapType
  52 {
  53     wxBITMAP_TYPE_INVALID,          // should be == 0 for compatibility!
  54     wxBITMAP_TYPE_BMP,
  55     wxBITMAP_TYPE_BMP_RESOURCE,
  56     wxBITMAP_TYPE_RESOURCE = wxBITMAP_TYPE_BMP_RESOURCE,
  57     wxBITMAP_TYPE_ICO,
  58     wxBITMAP_TYPE_ICO_RESOURCE,
  59     wxBITMAP_TYPE_CUR,
  60     wxBITMAP_TYPE_CUR_RESOURCE,
  61     wxBITMAP_TYPE_XBM,
  62     wxBITMAP_TYPE_XBM_DATA,
  63     wxBITMAP_TYPE_XPM,
  64     wxBITMAP_TYPE_XPM_DATA,
  65     wxBITMAP_TYPE_TIF,
  66     wxBITMAP_TYPE_TIF_RESOURCE,
  67     wxBITMAP_TYPE_GIF,
  68     wxBITMAP_TYPE_GIF_RESOURCE,
  69     wxBITMAP_TYPE_PNG,
  70     wxBITMAP_TYPE_PNG_RESOURCE,
  71     wxBITMAP_TYPE_JPEG,
  72     wxBITMAP_TYPE_JPEG_RESOURCE,
  73     wxBITMAP_TYPE_PNM,
  74     wxBITMAP_TYPE_PNM_RESOURCE,
  75     wxBITMAP_TYPE_PCX,
  76     wxBITMAP_TYPE_PCX_RESOURCE,
  77     wxBITMAP_TYPE_PICT,
  78     wxBITMAP_TYPE_PICT_RESOURCE,
  79     wxBITMAP_TYPE_ICON,
  80     wxBITMAP_TYPE_ICON_RESOURCE,
  81     wxBITMAP_TYPE_MACCURSOR,
  82     wxBITMAP_TYPE_MACCURSOR_RESOURCE,
  83     wxBITMAP_TYPE_ANY = 50
  84 };
  85
  86 // Standard cursors
  87 enum wxStockCursor
  88 {
  89     wxCURSOR_NONE,          // should be 0
  90     wxCURSOR_ARROW,
  91     wxCURSOR_BULLSEYE,
  92     wxCURSOR_CHAR,
  93     wxCURSOR_CROSS,
  94     wxCURSOR_HAND,
  95     wxCURSOR_IBEAM,
  96     wxCURSOR_LEFT_BUTTON,
  97     wxCURSOR_MAGNIFIER,
  98     wxCURSOR_MIDDLE_BUTTON,
  99     wxCURSOR_NO_ENTRY,
 100     wxCURSOR_PAINT_BRUSH,
 101     wxCURSOR_PENCIL,
 102     wxCURSOR_POINT_LEFT,
 103     wxCURSOR_POINT_RIGHT,
 104     wxCURSOR_QUESTION_ARROW,
 105     wxCURSOR_RIGHT_BUTTON,
 106     wxCURSOR_SIZENESW,
 107     wxCURSOR_SIZENS,
 108     wxCURSOR_SIZENWSE,
 109     wxCURSOR_SIZEWE,
 110     wxCURSOR_SIZING,
 111     wxCURSOR_SPRAYCAN,
 112     wxCURSOR_WAIT,
 113     wxCURSOR_WATCH,
 114     wxCURSOR_BLANK,
 115 #ifdef __WXGTK__
 116     wxCURSOR_DEFAULT, // standard X11 cursor
 117 #endif
 118 #ifdef __X__
 119     // Not yet implemented for Windows
 120     wxCURSOR_CROSS_REVERSE,
 121     wxCURSOR_DOUBLE_ARROW,
 122     wxCURSOR_BASED_ARROW_UP,
 123     wxCURSOR_BASED_ARROW_DOWN,
 124 #endif // X11
 125
 126     wxCURSOR_ARROWWAIT,
 127
 128     wxCURSOR_MAX
 129 };
 130
 131 #ifndef __WXGTK__
 132     #define wxCURSOR_DEFAULT wxCURSOR_ARROW
 133 #endif
 134
 135 // ---------------------------------------------------------------------------
 136 // macros
 137 // ---------------------------------------------------------------------------
 138
 139 /* Useful macro for creating icons portably, for example:
 140
 141     wxIcon *icon = new wxICON(mondrian);
 142
 143   expands into:
 144
 145     wxIcon *icon = new wxIcon("mondrian");      // On wxMSW
 146     wxIcon *icon = new wxIcon(mondrian_xpm);    // On wxGTK
 147  */
 148
 149 #ifdef __WXMSW__
 150     // Load from a resource
 151     #define wxICON(X) wxIcon("" #X "")
 152 #elif defined(__WXPM__)
 153     // Load from a resource
 154     #define wxICON(X) wxIcon("" #X "")
 155 #elif defined(__WXGTK__)
 156     // Initialize from an included XPM
 157     #define wxICON(X) wxIcon( (const char**) X##_xpm )
 158 #elif defined(__WXMOTIF__)
 159     // Initialize from an included XPM
 160     #define wxICON(X) wxIcon( X##_xpm )
 161 #else
 162     // This will usually mean something on any platform
 163     #define wxICON(X) wxIcon("" #X "")
 164 #endif // platform
 165
 166 /* Another macro: this one is for portable creation of bitmaps. We assume that
 167    under Unix bitmaps live in XPMs and under Windows they're in ressources.
 168  */
 169
 170 #if defined(__WXMSW__) || defined(__WXPM__)
 171     #define wxBITMAP(name) wxBitmap(#name, wxBITMAP_TYPE_RESOURCE)
 172 #elif defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__)
 173     // Initialize from an included XPM
 174     #define wxBITMAP(name) wxBitmap( (const char**) name##_xpm )
 175 #else // other platforms
 176     #define wxBITMAP(name) wxBitmap(name##_xpm, wxBITMAP_TYPE_XPM)
 177 #endif // platform
 178
 179 // ===========================================================================
 180 // classes
 181 // ===========================================================================
 182
 183 // ---------------------------------------------------------------------------
 184 // wxSize
 185 // ---------------------------------------------------------------------------
 186 class WXDLLEXPORT wxSize
 187 {
 188 public:
 189     // members are public for compatibility (don't use them directly,
 190     // especially that there names were chosen very unfortunately - they should
 191     // have been called width and height)
 192     int x, y;
 193
 194     // constructors
 195     wxSize() { x = y = 0; }
 196     wxSize(int xx, int yy) { Set(xx, yy); }
 197
 198     // no copy ctor or assignment operator - the defaults are ok
 199     bool operator==(const wxSize& sz) const { return x == sz.x && y == sz.y; }
 200
 201     // FIXME are these really useful? If they're, we should have += &c as well
 202     wxSize operator+(const wxSize& sz) { return wxSize(x + sz.x, y + sz.y); }
 203     wxSize operator-(const wxSize& sz) { return wxSize(x - sz.x, y - sz.y); }
 204
 205     // accessors
 206     void Set(int xx, int yy) { x = xx; y = yy; }
 207     void SetWidth(int w) { x = w; }
 208     void SetHeight(int h) { y = h; }
 209
 210     int GetWidth() const { return x; }
 211     int GetHeight() const { return y; }
 212
 213     // compatibility
 214     int GetX() const { return x; }
 215     int GetY() const { return y; }
 216 };
 217
 218 // ---------------------------------------------------------------------------
 219 // Point classes: with real or integer coordinates
 220 // ---------------------------------------------------------------------------
 221
 222 class WXDLLEXPORT wxRealPoint
 223 {
 224 public:
 225     double x;
 226     double y;
 227
 228     wxRealPoint() { x = y = 0.0; };
 229     wxRealPoint(double xx, double yy) { x = xx; y = yy; };
 230
 231     wxRealPoint operator+(const wxRealPoint& pt) const { return wxRealPoint(x + pt.x, y + pt.y); }
 232     wxRealPoint operator-(const wxRealPoint& pt) const { return wxRealPoint(x - pt.x, y - pt.y); }
 233
 234     bool operator==(const wxRealPoint& pt) const { return x == pt.x && y == pt.y; }
 235 };
 236
 237 class WXDLLEXPORT wxPoint
 238 {
 239 public:
 240     int x, y;
 241
 242     wxPoint() { x = y = 0; };
 243     wxPoint(int xx, int yy) { x = xx; y = yy; };
 244
 245     // no copy ctor or assignment operator - the defaults are ok
 246
 247     // comparison
 248     bool operator==(const wxPoint& p) const { return x == p.x && y == p.y; }
 249     bool operator!=(const wxPoint& p) const { return !(*this == p); }
 250
 251     // arithmetic operations (component wise)
 252     wxPoint operator+(const wxPoint& p) const { return wxPoint(x + p.x, y + p.y); }
 253     wxPoint operator-(const wxPoint& p) const { return wxPoint(x - p.x, y - p.y); }
 254
 255     wxPoint& operator+=(const wxPoint& p) { x += p.x; y += p.y; return *this; }
 256     wxPoint& operator-=(const wxPoint& p) { x -= p.x; y -= p.y; return *this; }
 257 };
 258
 259 #if WXWIN_COMPATIBILITY
 260     #define wxIntPoint wxPoint
 261     #define wxRectangle wxRect
 262 #endif // WXWIN_COMPATIBILITY
 263
 264 // ---------------------------------------------------------------------------
 265 // wxRect
 266 // ---------------------------------------------------------------------------
 267
 268 class WXDLLEXPORT wxRect
 269 {
 270 public:
 271     wxRect() { x = y = width = height = 0; }
 272     wxRect(int xx, int yy, int ww, int hh)
 273         { x = xx; y = yy; width = ww; height = hh; }
 274     wxRect(const wxPoint& topLeft, const wxPoint& bottomRight);
 275     wxRect(const wxPoint& pos, const wxSize& size);
 276
 277     // default copy ctor and assignment operators ok
 278
 279     int GetX() const { return x; }
 280     void SetX(int xx) { x = xx; }
 281
 282     int GetY() const { return y; }
 283     void SetY(int yy) { y = yy; }
 284
 285     int GetWidth() const { return width; }
 286     void SetWidth(int w) { width = w; }
 287
 288     int GetHeight() const { return height; }
 289     void SetHeight(int h) { height = h; }
 290
 291     wxPoint GetPosition() const { return wxPoint(x, y); }
 292     wxSize GetSize() const { return wxSize(width, height); }
 293
 294     int GetLeft()   const { return x; }
 295     int GetTop()    const { return y; }
 296     int GetBottom() const { return y + height - 1; }
 297     int GetRight()  const { return x + width - 1; }
 298
 299     void SetLeft(int left) { x = left; }
 300     void SetRight(int right) { width = right - x + 1; }
 301     void SetTop(int top) { y = top; }
 302     void SetBottom(int bottom) { height = bottom - y + 1; }
 303
 304     void Inflate(wxCoord dx, wxCoord dy)
 305     {
 306         x -= dx;
 307         y -= dy;
 308         width += 2*dx;
 309         height += 2*dy;
 310     }
 311
 312     void Inflate(wxCoord d) { Inflate(d, d); }
 313
 314     bool operator==(const wxRect& rect) const;
 315     bool operator!=(const wxRect& rect) const { return !(*this == rect); }
 316
 317     bool Inside(int cx, int cy) const;
 318     bool Inside(const wxPoint& pt) const { return Inside(pt.x, pt.y); }
 319     wxRect operator+(const wxRect& rect) const;
 320     wxRect& operator+=(const wxRect& rect);
 321
 322 public:
 323     int x, y, width, height;
 324 };
 325
 326 // ---------------------------------------------------------------------------
 327 // Management of pens, brushes and fonts
 328 // ---------------------------------------------------------------------------
 329
 330 typedef wxInt8 wxDash;
 331
 332 class WXDLLEXPORT wxPenList : public wxList
 333 {
 334     DECLARE_DYNAMIC_CLASS(wxPenList)
 335
 336 public:
 337     wxPenList() { }
 338     ~wxPenList();
 339
 340     void AddPen(wxPen *pen);
 341     void RemovePen(wxPen *pen);
 342     wxPen *FindOrCreatePen(const wxColour& colour, int width, int style);
 343 };
 344
 345 class WXDLLEXPORT wxBrushList : public wxList
 346 {
 347     DECLARE_DYNAMIC_CLASS(wxBrushList)
 348
 349 public:
 350     wxBrushList() { }
 351     ~wxBrushList();
 352
 353     void AddBrush(wxBrush *brush);
 354     void RemoveBrush(wxBrush *brush);
 355     wxBrush *FindOrCreateBrush(const wxColour& colour, int style);
 356 };
 357
 358 WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
 359
 360 class WXDLLEXPORT wxFontList : public wxList
 361 {
 362     DECLARE_DYNAMIC_CLASS(wxFontList)
 363
 364 public:
 365     wxFontList() { }
 366     ~wxFontList();
 367
 368     void AddFont(wxFont *font);
 369     void RemoveFont(wxFont *font);
 370     wxFont *FindOrCreateFont(int pointSize, int family, int style, int weight,
 371                              bool underline = FALSE,
 372                              const wxString& face = wxEmptyString,
 373                              wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
 374 };
 375
 376 class WXDLLEXPORT wxColourDatabase : public wxList
 377 {
 378     DECLARE_CLASS(wxColourDatabase)
 379
 380 public:
 381     wxColourDatabase(int type);
 382     ~wxColourDatabase() ;
 383
 384     // Not const because it may add a name to the database
 385     wxColour *FindColour(const wxString& colour) ;
 386     wxString FindName(const wxColour& colour) const;
 387     void Initialize();
 388 #ifdef __WXPM__
 389     // PM keeps its own type of colour table
 390     long*                           m_palTable;
 391     size_t                          m_nSize;
 392 #endif
 393 };
 394
 395 class WXDLLEXPORT wxBitmapList : public wxList
 396 {
 397     DECLARE_DYNAMIC_CLASS(wxBitmapList)
 398
 399 public:
 400     wxBitmapList();
 401     ~wxBitmapList();
 402
 403     void AddBitmap(wxBitmap *bitmap);
 404     void RemoveBitmap(wxBitmap *bitmap);
 405 };
 406
 407 class WXDLLEXPORT wxResourceCache: public wxList
 408 {
 409 public:
 410     wxResourceCache() { }
 411     wxResourceCache(const unsigned int keyType) : wxList(keyType) { }
 412     ~wxResourceCache();
 413
 414 private:
 415     DECLARE_DYNAMIC_CLASS(wxResourceCache)
 416 };
 417
 418 // ---------------------------------------------------------------------------
 419 // global variables
 420 // ---------------------------------------------------------------------------
 421
 422 // Lists of GDI objects
 423 WXDLLEXPORT_DATA(extern wxPenList*)   wxThePenList;
 424 WXDLLEXPORT_DATA(extern wxBrushList*)   wxTheBrushList;
 425 WXDLLEXPORT_DATA(extern wxFontList*)    wxTheFontList;
 426 WXDLLEXPORT_DATA(extern wxBitmapList*)  wxTheBitmapList;
 427
 428 // Stock objects
 429 WXDLLEXPORT_DATA(extern wxFont*)      wxNORMAL_FONT;
 430 WXDLLEXPORT_DATA(extern wxFont*)      wxSMALL_FONT;
 431 WXDLLEXPORT_DATA(extern wxFont*)      wxITALIC_FONT;
 432 WXDLLEXPORT_DATA(extern wxFont*)      wxSWISS_FONT;
 433
 434 WXDLLEXPORT_DATA(extern wxPen*)      wxRED_PEN;
 435 WXDLLEXPORT_DATA(extern wxPen*)      wxCYAN_PEN;
 436 WXDLLEXPORT_DATA(extern wxPen*)      wxGREEN_PEN;
 437 WXDLLEXPORT_DATA(extern wxPen*)      wxBLACK_PEN;
 438 WXDLLEXPORT_DATA(extern wxPen*)      wxWHITE_PEN;
 439 WXDLLEXPORT_DATA(extern wxPen*)      wxTRANSPARENT_PEN;
 440 WXDLLEXPORT_DATA(extern wxPen*)      wxBLACK_DASHED_PEN;
 441 WXDLLEXPORT_DATA(extern wxPen*)      wxGREY_PEN;
 442 WXDLLEXPORT_DATA(extern wxPen*)      wxMEDIUM_GREY_PEN;
 443 WXDLLEXPORT_DATA(extern wxPen*)      wxLIGHT_GREY_PEN;
 444
 445 WXDLLEXPORT_DATA(extern wxBrush*)    wxBLUE_BRUSH;
 446 WXDLLEXPORT_DATA(extern wxBrush*)    wxGREEN_BRUSH;
 447 WXDLLEXPORT_DATA(extern wxBrush*)    wxWHITE_BRUSH;
 448 WXDLLEXPORT_DATA(extern wxBrush*)    wxBLACK_BRUSH;
 449 WXDLLEXPORT_DATA(extern wxBrush*)    wxGREY_BRUSH;
 450 WXDLLEXPORT_DATA(extern wxBrush*)    wxMEDIUM_GREY_BRUSH;
 451 WXDLLEXPORT_DATA(extern wxBrush*)    wxLIGHT_GREY_BRUSH;
 452 WXDLLEXPORT_DATA(extern wxBrush*)    wxTRANSPARENT_BRUSH;
 453 WXDLLEXPORT_DATA(extern wxBrush*)    wxCYAN_BRUSH;
 454 WXDLLEXPORT_DATA(extern wxBrush*)    wxRED_BRUSH;
 455
 456 WXDLLEXPORT_DATA(extern wxColour*)    wxBLACK;
 457 WXDLLEXPORT_DATA(extern wxColour*)    wxWHITE;
 458 WXDLLEXPORT_DATA(extern wxColour*)    wxRED;
 459 WXDLLEXPORT_DATA(extern wxColour*)    wxBLUE;
 460 WXDLLEXPORT_DATA(extern wxColour*)    wxGREEN;
 461 WXDLLEXPORT_DATA(extern wxColour*)    wxCYAN;
 462 WXDLLEXPORT_DATA(extern wxColour*)    wxLIGHT_GREY;
 463
 464 // 'Null' objects
 465 WXDLLEXPORT_DATA(extern wxBitmap)     wxNullBitmap;
 466 WXDLLEXPORT_DATA(extern wxIcon)       wxNullIcon;
 467 WXDLLEXPORT_DATA(extern wxCursor)     wxNullCursor;
 468 WXDLLEXPORT_DATA(extern wxPen)        wxNullPen;
 469 WXDLLEXPORT_DATA(extern wxBrush)      wxNullBrush;
 470 WXDLLEXPORT_DATA(extern wxPalette)     wxNullPalette;
 471 WXDLLEXPORT_DATA(extern wxFont)       wxNullFont;
 472 WXDLLEXPORT_DATA(extern wxColour)     wxNullColour;
 473
 474 // Stock cursors types
 475 WXDLLEXPORT_DATA(extern wxCursor*)    wxSTANDARD_CURSOR;
 476 WXDLLEXPORT_DATA(extern wxCursor*)    wxHOURGLASS_CURSOR;
 477 WXDLLEXPORT_DATA(extern wxCursor*)    wxCROSS_CURSOR;
 478
 479 WXDLLEXPORT_DATA(extern wxColourDatabase*)  wxTheColourDatabase;
 480
 481 WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
 482
 483 WXDLLEXPORT_DATA(extern const wxSize) wxDefaultSize;
 484 WXDLLEXPORT_DATA(extern const wxPoint) wxDefaultPosition;
 485
 486 // The list of objects which should be deleted
 487 WXDLLEXPORT_DATA(extern wxList) wxPendingDelete;
 488
 489 // ---------------------------------------------------------------------------
 490 // global functions
 491 // ---------------------------------------------------------------------------
 492
 493 // resource management
 494 extern void WXDLLEXPORT wxInitializeStockObjects();
 495 extern void WXDLLEXPORT wxInitializeStockLists();
 496 extern void WXDLLEXPORT wxDeleteStockObjects();
 497 extern void WXDLLEXPORT wxDeleteStockLists();
 498
 499 // is the display colour (or monochrome)?
 500 extern bool WXDLLEXPORT wxColourDisplay();
 501
 502 // Returns depth of screen
 503 extern int WXDLLEXPORT wxDisplayDepth();
 504 #define wxGetDisplayDepth wxDisplayDepth
 505
 506 // get the display size
 507 extern void WXDLLEXPORT wxDisplaySize(int *width, int *height);
 508 extern wxSize WXDLLEXPORT wxGetDisplaySize();
 509 extern void WXDLLEXPORT wxDisplaySizeMM(int *width, int *height);
 510 extern wxSize WXDLLEXPORT wxGetDisplaySizeMM();
 511
 512 // set global cursor
 513 extern void WXDLLEXPORT wxSetCursor(const wxCursor& cursor);
 514
 515 #endif
 516     // _WX_GDICMNH__