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
  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_MAX
 127 };
 128
 129 #ifndef __WXGTK__
 130     #define wxCURSOR_DEFAULT wxCURSOR_ARROW
 131 #endif
 132
 133 // ---------------------------------------------------------------------------
 134 // macros
 135 // ---------------------------------------------------------------------------
 136
 137 /* Useful macro for creating icons portably, for example:
 138
 139     wxIcon *icon = new wxICON(mondrian);
 140
 141   expands into:
 142
 143     wxIcon *icon = new wxIcon("mondrian");      // On wxMSW
 144     wxIcon *icon = new wxIcon(mondrian_xpm);    // On wxGTK
 145  */
 146
 147 #ifdef __WXMSW__
 148     // Load from a resource
 149     #define wxICON(X) wxIcon("" #X "")
 150 #elif defined(__WXPM__)
 151     // Load from a resource
 152     #define wxICON(X) wxIcon("" #X "")
 153 #elif defined(__WXGTK__)
 154     // Initialize from an included XPM
 155     #define wxICON(X) wxIcon( (const char**) X##_xpm )
 156 #elif defined(__WXMOTIF__)
 157     // Initialize from an included XPM
 158     #define wxICON(X) wxIcon( X##_xpm )
 159 #else
 160     // This will usually mean something on any platform
 161     #define wxICON(X) wxIcon("" #X "")
 162 #endif // platform
 163
 164 /* Another macro: this one is for portable creation of bitmaps. We assume that
 165    under Unix bitmaps live in XPMs and under Windows they're in ressources.
 166  */
 167
 168 #if defined(__WXMSW__) || defined(__WXPM__)
 169     #define wxBITMAP(name) wxBitmap(#name, wxBITMAP_TYPE_RESOURCE)
 170 #elif defined(__WXGTK__) || defined(__WXMOTIF__)
 171     // Initialize from an included XPM
 172     #define wxBITMAP(name) wxBitmap( (const char**) name##_xpm )
 173 #else // other platforms
 174     #define wxBITMAP(name) wxBitmap(name##_xpm, wxBITMAP_TYPE_XPM)
 175 #endif // platform
 176
 177 // ===========================================================================
 178 // classes
 179 // ===========================================================================
 180
 181 // ---------------------------------------------------------------------------
 182 // wxSize
 183 // ---------------------------------------------------------------------------
 184 class WXDLLEXPORT wxSize
 185 {
 186 public:
 187     // members are public for compatibility (don't use them directly,
 188     // especially that there names were chosen very unfortunately - they should
 189     // have been called width and height)
 190     int x, y;
 191
 192     // constructors
 193     wxSize() { x = y = 0; }
 194     wxSize(int xx, int yy) { Set(xx, yy); }
 195
 196     // no copy ctor or assignment operator - the defaults are ok
 197     bool operator==(const wxSize& sz) const { return x == sz.x && y == sz.y; }
 198
 199     // FIXME are these really useful? If they're, we should have += &c as well
 200     wxSize operator+(const wxSize& sz) { return wxSize(x + sz.x, y + sz.y); }
 201     wxSize operator-(const wxSize& sz) { return wxSize(x - sz.x, y - sz.y); }
 202
 203     // accessors
 204     void Set(int xx, int yy) { x = xx; y = yy; }
 205     void SetWidth(int w) { x = w; }
 206     void SetHeight(int h) { y = h; }
 207
 208     int GetWidth() const { return x; }
 209     int GetHeight() const { return y; }
 210
 211     // compatibility
 212     int GetX() const { return x; }
 213     int GetY() const { return y; }
 214 };
 215
 216 // ---------------------------------------------------------------------------
 217 // Point classes: with real or integer coordinates
 218 // ---------------------------------------------------------------------------
 219
 220 class WXDLLEXPORT wxRealPoint
 221 {
 222 public:
 223     double x;
 224     double y;
 225
 226     wxRealPoint() { x = y = 0.0; };
 227     wxRealPoint(double xx, double yy) { x = xx; y = yy; };
 228
 229     wxRealPoint operator+(const wxRealPoint& pt) const { return wxRealPoint(x + pt.x, y + pt.y); }
 230     wxRealPoint operator-(const wxRealPoint& pt) const { return wxRealPoint(x - pt.x, y - pt.y); }
 231
 232     bool operator==(const wxRealPoint& pt) const { return x == pt.x && y == pt.y; }
 233 };
 234
 235 class WXDLLEXPORT wxPoint
 236 {
 237 public:
 238     int x, y;
 239
 240     wxPoint() { x = y = 0; };
 241     wxPoint(int xx, int yy) { x = xx; y = yy; };
 242
 243     // no copy ctor or assignment operator - the defaults are ok
 244
 245     // comparison
 246     bool operator==(const wxPoint& p) const { return x == p.x && y == p.y; }
 247     bool operator!=(const wxPoint& p) const { return !(*this == p); }
 248
 249     // arithmetic operations (component wise)
 250     wxPoint operator+(const wxPoint& p) const { return wxPoint(x + p.x, y + p.y); }
 251     wxPoint operator-(const wxPoint& p) const { return wxPoint(x - p.x, y - p.y); }
 252
 253     wxPoint& operator+=(const wxPoint& p) { x += p.x; y += p.y; return *this; }
 254     wxPoint& operator-=(const wxPoint& p) { x -= p.x; y -= p.y; return *this; }
 255 };
 256
 257 #if WXWIN_COMPATIBILITY
 258     #define wxIntPoint wxPoint
 259     #define wxRectangle wxRect
 260 #endif // WXWIN_COMPATIBILITY
 261
 262 // ---------------------------------------------------------------------------
 263 // wxRect
 264 // ---------------------------------------------------------------------------
 265
 266 class WXDLLEXPORT wxRect
 267 {
 268 public:
 269     wxRect() { x = y = width = height = 0; }
 270     wxRect(int xx, int yy, int ww, int hh)
 271         { x = xx; y = yy; width = ww; height = hh; }
 272     wxRect(const wxPoint& topLeft, const wxPoint& bottomRight);
 273     wxRect(const wxPoint& pos, const wxSize& size);
 274
 275     // default copy ctor and assignment operators ok
 276
 277     int GetX() const { return x; }
 278     void SetX(int xx) { x = xx; }
 279
 280     int GetY() const { return y; }
 281     void SetY(int yy) { y = yy; }
 282
 283     int GetWidth() const { return width; }
 284     void SetWidth(int w) { width = w; }
 285
 286     int GetHeight() const { return height; }
 287     void SetHeight(int h) { height = h; }
 288
 289     wxPoint GetPosition() const { return wxPoint(x, y); }
 290     wxSize GetSize() const { return wxSize(width, height); }
 291
 292     int GetLeft()   const { return x; }
 293     int GetTop()    const { return y; }
 294     int GetBottom() const { return y + height - 1; }
 295     int GetRight()  const { return x + width - 1; }
 296
 297     void SetLeft(int left) { x = left; }
 298     void SetRight(int right) { width = right - x + 1; }
 299     void SetTop(int top) { y = top; }
 300     void SetBottom(int bottom) { height = bottom - y + 1; }
 301
 302     void Inflate(wxCoord dx, wxCoord dy)
 303     {
 304         x -= dx;
 305         y -= dy;
 306         width += 2*dx;
 307         height += 2*dy;
 308     }
 309
 310     void Inflate(wxCoord d) { Inflate(d, d); }
 311
 312     bool operator==(const wxRect& rect) const;
 313     bool operator!=(const wxRect& rect) const { return !(*this == rect); }
 314
 315     bool Inside(int cx, int cy) const;
 316     bool Inside(const wxPoint& pt) const { return Inside(pt.x, pt.y); }
 317     wxRect operator+(const wxRect& rect) const;
 318     wxRect& operator+=(const wxRect& rect);
 319
 320 public:
 321     int x, y, width, height;
 322 };
 323
 324 // ---------------------------------------------------------------------------
 325 // Management of pens, brushes and fonts
 326 // ---------------------------------------------------------------------------
 327
 328 typedef wxInt8 wxDash;
 329
 330 class WXDLLEXPORT wxPenList : public wxList
 331 {
 332     DECLARE_DYNAMIC_CLASS(wxPenList)
 333
 334 public:
 335     wxPenList() { }
 336     ~wxPenList();
 337
 338     void AddPen(wxPen *pen);
 339     void RemovePen(wxPen *pen);
 340     wxPen *FindOrCreatePen(const wxColour& colour, int width, int style);
 341 };
 342
 343 class WXDLLEXPORT wxBrushList : public wxList
 344 {
 345     DECLARE_DYNAMIC_CLASS(wxBrushList)
 346
 347 public:
 348     wxBrushList() { }
 349     ~wxBrushList();
 350
 351     void AddBrush(wxBrush *brush);
 352     void RemoveBrush(wxBrush *brush);
 353     wxBrush *FindOrCreateBrush(const wxColour& colour, int style);
 354 };
 355
 356 WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
 357
 358 class WXDLLEXPORT wxFontList : public wxList
 359 {
 360     DECLARE_DYNAMIC_CLASS(wxFontList)
 361
 362 public:
 363     wxFontList() { }
 364     ~wxFontList();
 365
 366     void AddFont(wxFont *font);
 367     void RemoveFont(wxFont *font);
 368     wxFont *FindOrCreateFont(int pointSize, int family, int style, int weight,
 369                              bool underline = FALSE,
 370                              const wxString& face = wxEmptyString,
 371                              wxFontEncoding encoding = wxFONTENCODING_DEFAULT);
 372 };
 373
 374 class WXDLLEXPORT wxColourDatabase : public wxList
 375 {
 376     DECLARE_CLASS(wxColourDatabase)
 377
 378 public:
 379     wxColourDatabase(int type);
 380     ~wxColourDatabase() ;
 381
 382     // Not const because it may add a name to the database
 383     wxColour *FindColour(const wxString& colour) ;
 384     wxString FindName(const wxColour& colour) const;
 385     void Initialize();
 386 };
 387
 388 class WXDLLEXPORT wxBitmapList : public wxList
 389 {
 390     DECLARE_DYNAMIC_CLASS(wxBitmapList)
 391
 392 public:
 393     wxBitmapList();
 394     ~wxBitmapList();
 395
 396     void AddBitmap(wxBitmap *bitmap);
 397     void RemoveBitmap(wxBitmap *bitmap);
 398 };
 399
 400 class WXDLLEXPORT wxResourceCache: public wxList
 401 {
 402 public:
 403     wxResourceCache() { }
 404     wxResourceCache(const unsigned int keyType) : wxList(keyType) { }
 405     ~wxResourceCache();
 406
 407 private:
 408     DECLARE_DYNAMIC_CLASS(wxResourceCache)
 409 };
 410
 411 // ---------------------------------------------------------------------------
 412 // global variables
 413 // ---------------------------------------------------------------------------
 414
 415 // Lists of GDI objects
 416 WXDLLEXPORT_DATA(extern wxPenList*)   wxThePenList;
 417 WXDLLEXPORT_DATA(extern wxBrushList*)   wxTheBrushList;
 418 WXDLLEXPORT_DATA(extern wxFontList*)    wxTheFontList;
 419 WXDLLEXPORT_DATA(extern wxBitmapList*)  wxTheBitmapList;
 420
 421 // Stock objects
 422 WXDLLEXPORT_DATA(extern wxFont*)      wxNORMAL_FONT;
 423 WXDLLEXPORT_DATA(extern wxFont*)      wxSMALL_FONT;
 424 WXDLLEXPORT_DATA(extern wxFont*)      wxITALIC_FONT;
 425 WXDLLEXPORT_DATA(extern wxFont*)      wxSWISS_FONT;
 426
 427 WXDLLEXPORT_DATA(extern wxPen*)      wxRED_PEN;
 428 WXDLLEXPORT_DATA(extern wxPen*)      wxCYAN_PEN;
 429 WXDLLEXPORT_DATA(extern wxPen*)      wxGREEN_PEN;
 430 WXDLLEXPORT_DATA(extern wxPen*)      wxBLACK_PEN;
 431 WXDLLEXPORT_DATA(extern wxPen*)      wxWHITE_PEN;
 432 WXDLLEXPORT_DATA(extern wxPen*)      wxTRANSPARENT_PEN;
 433 WXDLLEXPORT_DATA(extern wxPen*)      wxBLACK_DASHED_PEN;
 434 WXDLLEXPORT_DATA(extern wxPen*)      wxGREY_PEN;
 435 WXDLLEXPORT_DATA(extern wxPen*)      wxMEDIUM_GREY_PEN;
 436 WXDLLEXPORT_DATA(extern wxPen*)      wxLIGHT_GREY_PEN;
 437
 438 WXDLLEXPORT_DATA(extern wxBrush*)    wxBLUE_BRUSH;
 439 WXDLLEXPORT_DATA(extern wxBrush*)    wxGREEN_BRUSH;
 440 WXDLLEXPORT_DATA(extern wxBrush*)    wxWHITE_BRUSH;
 441 WXDLLEXPORT_DATA(extern wxBrush*)    wxBLACK_BRUSH;
 442 WXDLLEXPORT_DATA(extern wxBrush*)    wxGREY_BRUSH;
 443 WXDLLEXPORT_DATA(extern wxBrush*)    wxMEDIUM_GREY_BRUSH;
 444 WXDLLEXPORT_DATA(extern wxBrush*)    wxLIGHT_GREY_BRUSH;
 445 WXDLLEXPORT_DATA(extern wxBrush*)    wxTRANSPARENT_BRUSH;
 446 WXDLLEXPORT_DATA(extern wxBrush*)    wxCYAN_BRUSH;
 447 WXDLLEXPORT_DATA(extern wxBrush*)    wxRED_BRUSH;
 448
 449 WXDLLEXPORT_DATA(extern wxColour*)    wxBLACK;
 450 WXDLLEXPORT_DATA(extern wxColour*)    wxWHITE;
 451 WXDLLEXPORT_DATA(extern wxColour*)    wxRED;
 452 WXDLLEXPORT_DATA(extern wxColour*)    wxBLUE;
 453 WXDLLEXPORT_DATA(extern wxColour*)    wxGREEN;
 454 WXDLLEXPORT_DATA(extern wxColour*)    wxCYAN;
 455 WXDLLEXPORT_DATA(extern wxColour*)    wxLIGHT_GREY;
 456
 457 // 'Null' objects
 458 WXDLLEXPORT_DATA(extern wxBitmap)     wxNullBitmap;
 459 WXDLLEXPORT_DATA(extern wxIcon)       wxNullIcon;
 460 WXDLLEXPORT_DATA(extern wxCursor)     wxNullCursor;
 461 WXDLLEXPORT_DATA(extern wxPen)        wxNullPen;
 462 WXDLLEXPORT_DATA(extern wxBrush)      wxNullBrush;
 463 WXDLLEXPORT_DATA(extern wxPalette)     wxNullPalette;
 464 WXDLLEXPORT_DATA(extern wxFont)       wxNullFont;
 465 WXDLLEXPORT_DATA(extern wxColour)     wxNullColour;
 466
 467 // Stock cursors types
 468 WXDLLEXPORT_DATA(extern wxCursor*)    wxSTANDARD_CURSOR;
 469 WXDLLEXPORT_DATA(extern wxCursor*)    wxHOURGLASS_CURSOR;
 470 WXDLLEXPORT_DATA(extern wxCursor*)    wxCROSS_CURSOR;
 471
 472 WXDLLEXPORT_DATA(extern wxColourDatabase*)  wxTheColourDatabase;
 473
 474 WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr;
 475
 476 WXDLLEXPORT_DATA(extern const wxSize) wxDefaultSize;
 477 WXDLLEXPORT_DATA(extern const wxPoint) wxDefaultPosition;
 478
 479 // The list of objects which should be deleted
 480 WXDLLEXPORT_DATA(extern wxList) wxPendingDelete;
 481
 482 // ---------------------------------------------------------------------------
 483 // global functions
 484 // ---------------------------------------------------------------------------
 485
 486 // resource management
 487 extern void WXDLLEXPORT wxInitializeStockObjects();
 488 extern void WXDLLEXPORT wxInitializeStockLists();
 489 extern void WXDLLEXPORT wxDeleteStockObjects();
 490 extern void WXDLLEXPORT wxDeleteStockLists();
 491
 492 // is the display colour (or monochrome)?
 493 extern bool WXDLLEXPORT wxColourDisplay();
 494
 495 // Returns depth of screen
 496 extern int WXDLLEXPORT wxDisplayDepth();
 497 #define wxGetDisplayDepth wxDisplayDepth
 498
 499 // get the display size
 500 extern void WXDLLEXPORT wxDisplaySize(int *width, int *height);
 501 extern wxSize WXDLLEXPORT wxGetDisplaySize();
 502 extern void WXDLLEXPORT wxDisplaySizeMM(int *width, int *height);
 503 extern wxSize WXDLLEXPORT wxGetDisplaySizeMM();
 504
 505 // set global cursor
 506 extern void WXDLLEXPORT wxSetCursor(const wxCursor& cursor);
 507
 508 #endif
 509     // _WX_GDICMNH__