| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: gtk/dcclient.cpp |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling, Markus Holzem, Chris Breeze |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #ifdef __GNUG__ |
| 11 | #pragma implementation "dcclient.h" |
| 12 | #endif |
| 13 | |
| 14 | #ifdef __VMS |
| 15 | #define XCopyPlane XCOPYPLANE |
| 16 | #endif |
| 17 | |
| 18 | #include "wx/dcclient.h" |
| 19 | #include "wx/dcmemory.h" |
| 20 | #include "wx/image.h" |
| 21 | #include "wx/module.h" |
| 22 | |
| 23 | #include "wx/gtk/win_gtk.h" |
| 24 | |
| 25 | #include <math.h> // for floating-point functions |
| 26 | |
| 27 | #include <gdk/gdk.h> |
| 28 | #include <gdk/gdkx.h> |
| 29 | #include <gdk/gdkprivate.h> |
| 30 | #include <gtk/gtk.h> |
| 31 | |
| 32 | //----------------------------------------------------------------------------- |
| 33 | // local defines |
| 34 | //----------------------------------------------------------------------------- |
| 35 | |
| 36 | #define USE_PAINT_REGION 1 |
| 37 | |
| 38 | //----------------------------------------------------------------------------- |
| 39 | // local data |
| 40 | //----------------------------------------------------------------------------- |
| 41 | |
| 42 | #include "bdiag.xbm" |
| 43 | #include "fdiag.xbm" |
| 44 | #include "cdiag.xbm" |
| 45 | #include "horiz.xbm" |
| 46 | #include "verti.xbm" |
| 47 | #include "cross.xbm" |
| 48 | #define num_hatches 6 |
| 49 | |
| 50 | #define IS_15_PIX_HATCH(s) ((s)==wxCROSSDIAG_HATCH || (s)==wxHORIZONTAL_HATCH || (s)==wxVERTICAL_HATCH) |
| 51 | #define IS_16_PIX_HATCH(s) ((s)!=wxCROSSDIAG_HATCH && (s)!=wxHORIZONTAL_HATCH && (s)!=wxVERTICAL_HATCH) |
| 52 | |
| 53 | |
| 54 | static GdkPixmap *hatches[num_hatches]; |
| 55 | static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL; |
| 56 | |
| 57 | extern GtkWidget *wxRootWindow; |
| 58 | |
| 59 | //----------------------------------------------------------------------------- |
| 60 | // constants |
| 61 | //----------------------------------------------------------------------------- |
| 62 | |
| 63 | const double RAD2DEG = 180.0 / M_PI; |
| 64 | |
| 65 | // ---------------------------------------------------------------------------- |
| 66 | // private functions |
| 67 | // ---------------------------------------------------------------------------- |
| 68 | |
| 69 | static inline double dmax(double a, double b) { return a > b ? a : b; } |
| 70 | static inline double dmin(double a, double b) { return a < b ? a : b; } |
| 71 | |
| 72 | static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } |
| 73 | |
| 74 | //----------------------------------------------------------------------------- |
| 75 | // temporary implementation of the missing GDK function |
| 76 | //----------------------------------------------------------------------------- |
| 77 | |
| 78 | #include "gdk/gdkprivate.h" |
| 79 | |
| 80 | void gdk_wx_draw_bitmap (GdkDrawable *drawable, |
| 81 | GdkGC *gc, |
| 82 | GdkDrawable *src, |
| 83 | gint xsrc, |
| 84 | gint ysrc, |
| 85 | gint xdest, |
| 86 | gint ydest, |
| 87 | gint width, |
| 88 | gint height) |
| 89 | { |
| 90 | gint src_width, src_height; |
| 91 | #ifndef __WXGTK20__ |
| 92 | GdkWindowPrivate *drawable_private; |
| 93 | GdkWindowPrivate *src_private; |
| 94 | GdkGCPrivate *gc_private; |
| 95 | #endif |
| 96 | |
| 97 | g_return_if_fail (drawable != NULL); |
| 98 | g_return_if_fail (src != NULL); |
| 99 | g_return_if_fail (gc != NULL); |
| 100 | |
| 101 | #ifdef __WXGTK20__ |
| 102 | if (GDK_WINDOW_DESTROYED(drawable) || GDK_WINDOW_DESTROYED(src)) |
| 103 | return; |
| 104 | |
| 105 | gdk_drawable_get_size(src, &src_width, &src_height); |
| 106 | #else |
| 107 | drawable_private = (GdkWindowPrivate*) drawable; |
| 108 | src_private = (GdkWindowPrivate*) src; |
| 109 | if (drawable_private->destroyed || src_private->destroyed) |
| 110 | return; |
| 111 | |
| 112 | src_width = src_private->width; |
| 113 | src_height = src_private->height; |
| 114 | |
| 115 | gc_private = (GdkGCPrivate*) gc; |
| 116 | #endif |
| 117 | |
| 118 | if (width == -1) width = src_width; |
| 119 | if (height == -1) height = src_height; |
| 120 | |
| 121 | #ifdef __WXGTK20__ |
| 122 | XCopyPlane( GDK_WINDOW_XDISPLAY(drawable), |
| 123 | GDK_WINDOW_XID(src), |
| 124 | GDK_WINDOW_XID(drawable), |
| 125 | GDK_GC_XGC(gc), |
| 126 | xsrc, ysrc, |
| 127 | width, height, |
| 128 | xdest, ydest, |
| 129 | 1 ); |
| 130 | #else |
| 131 | XCopyPlane( drawable_private->xdisplay, |
| 132 | src_private->xwindow, |
| 133 | drawable_private->xwindow, |
| 134 | gc_private->xgc, |
| 135 | xsrc, ysrc, |
| 136 | width, height, |
| 137 | xdest, ydest, |
| 138 | 1 ); |
| 139 | #endif |
| 140 | } |
| 141 | |
| 142 | //----------------------------------------------------------------------------- |
| 143 | // Implement Pool of Graphic contexts. Creating them takes too much time. |
| 144 | //----------------------------------------------------------------------------- |
| 145 | |
| 146 | #define GC_POOL_SIZE 200 |
| 147 | |
| 148 | enum wxPoolGCType |
| 149 | { |
| 150 | wxGC_ERROR = 0, |
| 151 | wxTEXT_MONO, |
| 152 | wxBG_MONO, |
| 153 | wxPEN_MONO, |
| 154 | wxBRUSH_MONO, |
| 155 | wxTEXT_COLOUR, |
| 156 | wxBG_COLOUR, |
| 157 | wxPEN_COLOUR, |
| 158 | wxBRUSH_COLOUR, |
| 159 | wxTEXT_SCREEN, |
| 160 | wxBG_SCREEN, |
| 161 | wxPEN_SCREEN, |
| 162 | wxBRUSH_SCREEN |
| 163 | }; |
| 164 | |
| 165 | struct wxGC |
| 166 | { |
| 167 | GdkGC *m_gc; |
| 168 | wxPoolGCType m_type; |
| 169 | bool m_used; |
| 170 | }; |
| 171 | |
| 172 | static wxGC wxGCPool[GC_POOL_SIZE]; |
| 173 | |
| 174 | static void wxInitGCPool() |
| 175 | { |
| 176 | memset( wxGCPool, 0, GC_POOL_SIZE*sizeof(wxGC) ); |
| 177 | } |
| 178 | |
| 179 | static void wxCleanUpGCPool() |
| 180 | { |
| 181 | for (int i = 0; i < GC_POOL_SIZE; i++) |
| 182 | { |
| 183 | if (wxGCPool[i].m_gc) |
| 184 | gdk_gc_unref( wxGCPool[i].m_gc ); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type ) |
| 189 | { |
| 190 | for (int i = 0; i < GC_POOL_SIZE; i++) |
| 191 | { |
| 192 | if (!wxGCPool[i].m_gc) |
| 193 | { |
| 194 | wxGCPool[i].m_gc = gdk_gc_new( window ); |
| 195 | gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE ); |
| 196 | wxGCPool[i].m_type = type; |
| 197 | wxGCPool[i].m_used = FALSE; |
| 198 | } |
| 199 | if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type)) |
| 200 | { |
| 201 | wxGCPool[i].m_used = TRUE; |
| 202 | return wxGCPool[i].m_gc; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | wxFAIL_MSG( wxT("No GC available") ); |
| 207 | |
| 208 | return (GdkGC*) NULL; |
| 209 | } |
| 210 | |
| 211 | static void wxFreePoolGC( GdkGC *gc ) |
| 212 | { |
| 213 | for (int i = 0; i < GC_POOL_SIZE; i++) |
| 214 | { |
| 215 | if (wxGCPool[i].m_gc == gc) |
| 216 | { |
| 217 | wxGCPool[i].m_used = FALSE; |
| 218 | return; |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | wxFAIL_MSG( wxT("Wrong GC") ); |
| 223 | } |
| 224 | |
| 225 | //----------------------------------------------------------------------------- |
| 226 | // wxWindowDC |
| 227 | //----------------------------------------------------------------------------- |
| 228 | |
| 229 | IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC) |
| 230 | |
| 231 | wxWindowDC::wxWindowDC() |
| 232 | { |
| 233 | m_penGC = (GdkGC *) NULL; |
| 234 | m_brushGC = (GdkGC *) NULL; |
| 235 | m_textGC = (GdkGC *) NULL; |
| 236 | m_bgGC = (GdkGC *) NULL; |
| 237 | m_cmap = (GdkColormap *) NULL; |
| 238 | m_isMemDC = FALSE; |
| 239 | m_isScreenDC = FALSE; |
| 240 | m_owner = (wxWindow *)NULL; |
| 241 | #ifdef __WXGTK20__ |
| 242 | m_context = (PangoContext *)NULL; |
| 243 | m_fontdesc = (PangoFontDescription *)NULL; |
| 244 | #endif |
| 245 | } |
| 246 | |
| 247 | wxWindowDC::wxWindowDC( wxWindow *window ) |
| 248 | { |
| 249 | m_penGC = (GdkGC *) NULL; |
| 250 | m_brushGC = (GdkGC *) NULL; |
| 251 | m_textGC = (GdkGC *) NULL; |
| 252 | m_bgGC = (GdkGC *) NULL; |
| 253 | m_cmap = (GdkColormap *) NULL; |
| 254 | m_owner = (wxWindow *)NULL; |
| 255 | m_isMemDC = FALSE; |
| 256 | m_isScreenDC = FALSE; |
| 257 | m_font = window->GetFont(); |
| 258 | |
| 259 | wxASSERT_MSG( window, wxT("DC needs a window") ); |
| 260 | |
| 261 | GtkWidget *widget = window->m_wxwindow; |
| 262 | |
| 263 | // some controls don't have m_wxwindow - like wxStaticBox, but the user |
| 264 | // code should still be able to create wxClientDCs for them, so we will |
| 265 | // use the parent window here then |
| 266 | if ( !widget ) |
| 267 | { |
| 268 | window = window->GetParent(); |
| 269 | widget = window->m_wxwindow; |
| 270 | } |
| 271 | |
| 272 | wxASSERT_MSG( widget, wxT("DC needs a widget") ); |
| 273 | |
| 274 | #ifdef __WXGTK20__ |
| 275 | m_context = gtk_widget_get_pango_context( widget ); |
| 276 | m_fontdesc = widget->style->font_desc; |
| 277 | #endif |
| 278 | |
| 279 | GtkPizza *pizza = GTK_PIZZA( widget ); |
| 280 | m_window = pizza->bin_window; |
| 281 | |
| 282 | /* not realized ? */ |
| 283 | if (!m_window) |
| 284 | { |
| 285 | /* don't report problems */ |
| 286 | m_ok = TRUE; |
| 287 | |
| 288 | return; |
| 289 | } |
| 290 | |
| 291 | m_cmap = gtk_widget_get_colormap( widget ? widget : window->m_widget ); |
| 292 | |
| 293 | SetUpDC(); |
| 294 | |
| 295 | /* this must be done after SetUpDC, bacause SetUpDC calls the |
| 296 | repective SetBrush, SetPen, SetBackground etc functions |
| 297 | to set up the DC. SetBackground call m_owner->SetBackground |
| 298 | and this might not be desired as the standard dc background |
| 299 | is white whereas a window might assume gray to be the |
| 300 | standard (as e.g. wxStatusBar) */ |
| 301 | |
| 302 | m_owner = window; |
| 303 | } |
| 304 | |
| 305 | wxWindowDC::~wxWindowDC() |
| 306 | { |
| 307 | Destroy(); |
| 308 | } |
| 309 | |
| 310 | void wxWindowDC::SetUpDC() |
| 311 | { |
| 312 | m_ok = TRUE; |
| 313 | |
| 314 | wxASSERT_MSG( !m_penGC, wxT("GCs already created") ); |
| 315 | |
| 316 | if (m_isScreenDC) |
| 317 | { |
| 318 | m_penGC = wxGetPoolGC( m_window, wxPEN_SCREEN ); |
| 319 | m_brushGC = wxGetPoolGC( m_window, wxBRUSH_SCREEN ); |
| 320 | m_textGC = wxGetPoolGC( m_window, wxTEXT_SCREEN ); |
| 321 | m_bgGC = wxGetPoolGC( m_window, wxBG_SCREEN ); |
| 322 | } |
| 323 | else |
| 324 | if (m_isMemDC && (((wxMemoryDC*)this)->m_selected.GetDepth() == 1)) |
| 325 | { |
| 326 | m_penGC = wxGetPoolGC( m_window, wxPEN_MONO ); |
| 327 | m_brushGC = wxGetPoolGC( m_window, wxBRUSH_MONO ); |
| 328 | m_textGC = wxGetPoolGC( m_window, wxTEXT_MONO ); |
| 329 | m_bgGC = wxGetPoolGC( m_window, wxBG_MONO ); |
| 330 | } |
| 331 | else |
| 332 | { |
| 333 | m_penGC = wxGetPoolGC( m_window, wxPEN_COLOUR ); |
| 334 | m_brushGC = wxGetPoolGC( m_window, wxBRUSH_COLOUR ); |
| 335 | m_textGC = wxGetPoolGC( m_window, wxTEXT_COLOUR ); |
| 336 | m_bgGC = wxGetPoolGC( m_window, wxBG_COLOUR ); |
| 337 | } |
| 338 | |
| 339 | /* background colour */ |
| 340 | m_backgroundBrush = *wxWHITE_BRUSH; |
| 341 | m_backgroundBrush.GetColour().CalcPixel( m_cmap ); |
| 342 | GdkColor *bg_col = m_backgroundBrush.GetColour().GetColor(); |
| 343 | |
| 344 | /* m_textGC */ |
| 345 | m_textForegroundColour.CalcPixel( m_cmap ); |
| 346 | gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); |
| 347 | |
| 348 | m_textBackgroundColour.CalcPixel( m_cmap ); |
| 349 | gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() ); |
| 350 | |
| 351 | gdk_gc_set_fill( m_textGC, GDK_SOLID ); |
| 352 | |
| 353 | /* m_penGC */ |
| 354 | m_pen.GetColour().CalcPixel( m_cmap ); |
| 355 | gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() ); |
| 356 | gdk_gc_set_background( m_penGC, bg_col ); |
| 357 | |
| 358 | gdk_gc_set_line_attributes( m_penGC, 0, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_ROUND ); |
| 359 | |
| 360 | /* m_brushGC */ |
| 361 | m_brush.GetColour().CalcPixel( m_cmap ); |
| 362 | gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() ); |
| 363 | gdk_gc_set_background( m_brushGC, bg_col ); |
| 364 | |
| 365 | gdk_gc_set_fill( m_brushGC, GDK_SOLID ); |
| 366 | |
| 367 | /* m_bgGC */ |
| 368 | gdk_gc_set_background( m_bgGC, bg_col ); |
| 369 | gdk_gc_set_foreground( m_bgGC, bg_col ); |
| 370 | |
| 371 | gdk_gc_set_fill( m_bgGC, GDK_SOLID ); |
| 372 | |
| 373 | /* ROPs */ |
| 374 | gdk_gc_set_function( m_textGC, GDK_COPY ); |
| 375 | gdk_gc_set_function( m_brushGC, GDK_COPY ); |
| 376 | gdk_gc_set_function( m_penGC, GDK_COPY ); |
| 377 | |
| 378 | /* clipping */ |
| 379 | gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL ); |
| 380 | gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL ); |
| 381 | gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL ); |
| 382 | gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL ); |
| 383 | |
| 384 | if (!hatch_bitmap) |
| 385 | { |
| 386 | hatch_bitmap = hatches; |
| 387 | hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height ); |
| 388 | hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height ); |
| 389 | hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height ); |
| 390 | hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height ); |
| 391 | hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height ); |
| 392 | hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height ); |
| 393 | } |
| 394 | } |
| 395 | |
| 396 | void wxWindowDC::DoFloodFill( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), |
| 397 | const wxColour &WXUNUSED(col), int WXUNUSED(style) ) |
| 398 | { |
| 399 | wxFAIL_MSG( wxT("wxWindowDC::DoFloodFill not implemented") ); |
| 400 | } |
| 401 | |
| 402 | bool wxWindowDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const |
| 403 | { |
| 404 | // Generic (and therefore rather inefficient) method. |
| 405 | // Could be improved. |
| 406 | wxMemoryDC memdc; |
| 407 | wxBitmap bitmap(1, 1); |
| 408 | memdc.SelectObject(bitmap); |
| 409 | memdc.Blit(0, 0, 1, 1, (wxDC*) this, x1, y1); |
| 410 | memdc.SelectObject(wxNullBitmap); |
| 411 | wxImage image(bitmap); |
| 412 | col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0)); |
| 413 | return TRUE; |
| 414 | } |
| 415 | |
| 416 | void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 ) |
| 417 | { |
| 418 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 419 | |
| 420 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 421 | { |
| 422 | if (m_window) |
| 423 | gdk_draw_line( m_window, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) ); |
| 424 | |
| 425 | CalcBoundingBox(x1, y1); |
| 426 | CalcBoundingBox(x2, y2); |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y ) |
| 431 | { |
| 432 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 433 | |
| 434 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 435 | { |
| 436 | int w = 0; |
| 437 | int h = 0; |
| 438 | GetSize( &w, &h ); |
| 439 | wxCoord xx = XLOG2DEV(x); |
| 440 | wxCoord yy = YLOG2DEV(y); |
| 441 | if (m_window) |
| 442 | { |
| 443 | gdk_draw_line( m_window, m_penGC, 0, yy, XLOG2DEVREL(w), yy ); |
| 444 | gdk_draw_line( m_window, m_penGC, xx, 0, xx, YLOG2DEVREL(h) ); |
| 445 | } |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, |
| 450 | wxCoord xc, wxCoord yc ) |
| 451 | { |
| 452 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 453 | |
| 454 | wxCoord xx1 = XLOG2DEV(x1); |
| 455 | wxCoord yy1 = YLOG2DEV(y1); |
| 456 | wxCoord xx2 = XLOG2DEV(x2); |
| 457 | wxCoord yy2 = YLOG2DEV(y2); |
| 458 | wxCoord xxc = XLOG2DEV(xc); |
| 459 | wxCoord yyc = YLOG2DEV(yc); |
| 460 | double dx = xx1 - xxc; |
| 461 | double dy = yy1 - yyc; |
| 462 | double radius = sqrt((double)(dx*dx+dy*dy)); |
| 463 | wxCoord r = (wxCoord)radius; |
| 464 | double radius1, radius2; |
| 465 | |
| 466 | if (xx1 == xx2 && yy1 == yy2) |
| 467 | { |
| 468 | radius1 = 0.0; |
| 469 | radius2 = 360.0; |
| 470 | } |
| 471 | else |
| 472 | if (radius == 0.0) |
| 473 | { |
| 474 | radius1 = radius2 = 0.0; |
| 475 | } |
| 476 | else |
| 477 | { |
| 478 | radius1 = (xx1 - xxc == 0) ? |
| 479 | (yy1 - yyc < 0) ? 90.0 : -90.0 : |
| 480 | -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG; |
| 481 | radius2 = (xx2 - xxc == 0) ? |
| 482 | (yy2 - yyc < 0) ? 90.0 : -90.0 : |
| 483 | -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG; |
| 484 | } |
| 485 | wxCoord alpha1 = wxCoord(radius1 * 64.0); |
| 486 | wxCoord alpha2 = wxCoord((radius2 - radius1) * 64.0); |
| 487 | while (alpha2 <= 0) alpha2 += 360*64; |
| 488 | while (alpha1 > 360*64) alpha1 -= 360*64; |
| 489 | |
| 490 | if (m_window) |
| 491 | { |
| 492 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 493 | { |
| 494 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 495 | { |
| 496 | gdk_gc_set_ts_origin( m_textGC, |
| 497 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 498 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 499 | gdk_draw_arc( m_window, m_textGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 500 | gdk_gc_set_ts_origin( m_textGC, 0, 0 ); |
| 501 | } else |
| 502 | if (IS_15_PIX_HATCH(m_brush.GetStyle())) |
| 503 | { |
| 504 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); |
| 505 | gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 506 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 507 | } else |
| 508 | if (IS_16_PIX_HATCH(m_brush.GetStyle())) |
| 509 | { |
| 510 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); |
| 511 | gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 512 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 513 | } else |
| 514 | if (m_brush.GetStyle() == wxSTIPPLE) |
| 515 | { |
| 516 | gdk_gc_set_ts_origin( m_brushGC, |
| 517 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 518 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 519 | gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 520 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 521 | } |
| 522 | else |
| 523 | { |
| 524 | gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 529 | { |
| 530 | gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 531 | |
| 532 | gdk_draw_line( m_window, m_penGC, xx1, yy1, xxc, yyc ); |
| 533 | gdk_draw_line( m_window, m_penGC, xxc, yyc, xx2, yy2 ); |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | CalcBoundingBox (x1, y1); |
| 538 | CalcBoundingBox (x2, y2); |
| 539 | } |
| 540 | |
| 541 | void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea ) |
| 542 | { |
| 543 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 544 | |
| 545 | wxCoord xx = XLOG2DEV(x); |
| 546 | wxCoord yy = YLOG2DEV(y); |
| 547 | wxCoord ww = m_signX * XLOG2DEVREL(width); |
| 548 | wxCoord hh = m_signY * YLOG2DEVREL(height); |
| 549 | |
| 550 | // CMB: handle -ve width and/or height |
| 551 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 552 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 553 | |
| 554 | if (m_window) |
| 555 | { |
| 556 | wxCoord start = wxCoord(sa * 64.0); |
| 557 | wxCoord end = wxCoord((ea-sa) * 64.0); |
| 558 | |
| 559 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 560 | { |
| 561 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 562 | { |
| 563 | gdk_gc_set_ts_origin( m_textGC, |
| 564 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 565 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 566 | gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, ww, hh, start, end ); |
| 567 | gdk_gc_set_ts_origin( m_textGC, 0, 0 ); |
| 568 | } else |
| 569 | if (IS_15_PIX_HATCH(m_brush.GetStyle())) |
| 570 | { |
| 571 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); |
| 572 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); |
| 573 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 574 | } else |
| 575 | if (IS_16_PIX_HATCH(m_brush.GetStyle())) |
| 576 | { |
| 577 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); |
| 578 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); |
| 579 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 580 | } else |
| 581 | if (m_brush.GetStyle() == wxSTIPPLE) |
| 582 | { |
| 583 | gdk_gc_set_ts_origin( m_brushGC, |
| 584 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 585 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 586 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); |
| 587 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 588 | } |
| 589 | else |
| 590 | { |
| 591 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 596 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end ); |
| 597 | } |
| 598 | |
| 599 | CalcBoundingBox (x, y); |
| 600 | CalcBoundingBox (x + width, y + height); |
| 601 | } |
| 602 | |
| 603 | void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y ) |
| 604 | { |
| 605 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 606 | |
| 607 | if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window) |
| 608 | gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) ); |
| 609 | |
| 610 | CalcBoundingBox (x, y); |
| 611 | } |
| 612 | |
| 613 | void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset ) |
| 614 | { |
| 615 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 616 | |
| 617 | if (m_pen.GetStyle() == wxTRANSPARENT) return; |
| 618 | if (n <= 0) return; |
| 619 | |
| 620 | CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset ); |
| 621 | |
| 622 | for (int i = 0; i < n-1; i++) |
| 623 | { |
| 624 | wxCoord x1 = XLOG2DEV(points[i].x + xoffset); |
| 625 | wxCoord x2 = XLOG2DEV(points[i+1].x + xoffset); |
| 626 | wxCoord y1 = YLOG2DEV(points[i].y + yoffset); // oh, what a waste |
| 627 | wxCoord y2 = YLOG2DEV(points[i+1].y + yoffset); |
| 628 | |
| 629 | if (m_window) |
| 630 | gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 ); |
| 631 | |
| 632 | CalcBoundingBox( points[i+1].x + xoffset, points[i+1].y + yoffset ); |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) ) |
| 637 | { |
| 638 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 639 | |
| 640 | if (n <= 0) return; |
| 641 | |
| 642 | GdkPoint *gdkpoints = new GdkPoint[n+1]; |
| 643 | int i; |
| 644 | for (i = 0 ; i < n ; i++) |
| 645 | { |
| 646 | gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset); |
| 647 | gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset); |
| 648 | |
| 649 | CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset ); |
| 650 | } |
| 651 | |
| 652 | if (m_window) |
| 653 | { |
| 654 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 655 | { |
| 656 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 657 | { |
| 658 | gdk_gc_set_ts_origin( m_textGC, |
| 659 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 660 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 661 | gdk_draw_polygon( m_window, m_textGC, TRUE, gdkpoints, n ); |
| 662 | gdk_gc_set_ts_origin( m_textGC, 0, 0 ); |
| 663 | } else |
| 664 | if (IS_15_PIX_HATCH(m_brush.GetStyle())) |
| 665 | { |
| 666 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); |
| 667 | gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n ); |
| 668 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 669 | } else |
| 670 | if (IS_16_PIX_HATCH(m_brush.GetStyle())) |
| 671 | { |
| 672 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); |
| 673 | gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n ); |
| 674 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 675 | } else |
| 676 | if (m_brush.GetStyle() == wxSTIPPLE) |
| 677 | { |
| 678 | gdk_gc_set_ts_origin( m_brushGC, |
| 679 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 680 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 681 | gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n ); |
| 682 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 683 | } |
| 684 | else |
| 685 | { |
| 686 | gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n ); |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 691 | { |
| 692 | for (i = 0 ; i < n ; i++) |
| 693 | { |
| 694 | gdk_draw_line( m_window, m_penGC, |
| 695 | gdkpoints[i%n].x, |
| 696 | gdkpoints[i%n].y, |
| 697 | gdkpoints[(i+1)%n].x, |
| 698 | gdkpoints[(i+1)%n].y); |
| 699 | } |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | delete[] gdkpoints; |
| 704 | } |
| 705 | |
| 706 | void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) |
| 707 | { |
| 708 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 709 | |
| 710 | wxCoord xx = XLOG2DEV(x); |
| 711 | wxCoord yy = YLOG2DEV(y); |
| 712 | wxCoord ww = m_signX * XLOG2DEVREL(width); |
| 713 | wxCoord hh = m_signY * YLOG2DEVREL(height); |
| 714 | |
| 715 | // CMB: draw nothing if transformed w or h is 0 |
| 716 | if (ww == 0 || hh == 0) return; |
| 717 | |
| 718 | // CMB: handle -ve width and/or height |
| 719 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 720 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 721 | |
| 722 | if (m_window) |
| 723 | { |
| 724 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 725 | { |
| 726 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 727 | { |
| 728 | gdk_gc_set_ts_origin( m_textGC, |
| 729 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 730 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 731 | gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy, ww, hh ); |
| 732 | gdk_gc_set_ts_origin( m_textGC, 0, 0 ); |
| 733 | } else |
| 734 | if (IS_15_PIX_HATCH(m_brush.GetStyle())) |
| 735 | { |
| 736 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); |
| 737 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh ); |
| 738 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 739 | } else |
| 740 | if (IS_16_PIX_HATCH(m_brush.GetStyle())) |
| 741 | { |
| 742 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); |
| 743 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh ); |
| 744 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 745 | } else |
| 746 | if (m_brush.GetStyle() == wxSTIPPLE) |
| 747 | { |
| 748 | gdk_gc_set_ts_origin( m_brushGC, |
| 749 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 750 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 751 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh ); |
| 752 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 753 | } |
| 754 | else |
| 755 | { |
| 756 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh ); |
| 757 | } |
| 758 | } |
| 759 | |
| 760 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 761 | gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 ); |
| 762 | } |
| 763 | |
| 764 | CalcBoundingBox( x, y ); |
| 765 | CalcBoundingBox( x + width, y + height ); |
| 766 | } |
| 767 | |
| 768 | void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius ) |
| 769 | { |
| 770 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 771 | |
| 772 | if (radius < 0.0) radius = - radius * ((width < height) ? width : height); |
| 773 | |
| 774 | wxCoord xx = XLOG2DEV(x); |
| 775 | wxCoord yy = YLOG2DEV(y); |
| 776 | wxCoord ww = m_signX * XLOG2DEVREL(width); |
| 777 | wxCoord hh = m_signY * YLOG2DEVREL(height); |
| 778 | wxCoord rr = XLOG2DEVREL((wxCoord)radius); |
| 779 | |
| 780 | // CMB: handle -ve width and/or height |
| 781 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 782 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 783 | |
| 784 | // CMB: if radius is zero use DrawRectangle() instead to avoid |
| 785 | // X drawing errors with small radii |
| 786 | if (rr == 0) |
| 787 | { |
| 788 | DrawRectangle( x, y, width, height ); |
| 789 | return; |
| 790 | } |
| 791 | |
| 792 | // CMB: draw nothing if transformed w or h is 0 |
| 793 | if (ww == 0 || hh == 0) return; |
| 794 | |
| 795 | // CMB: adjust size if outline is drawn otherwise the result is |
| 796 | // 1 pixel too wide and high |
| 797 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 798 | { |
| 799 | ww--; |
| 800 | hh--; |
| 801 | } |
| 802 | |
| 803 | if (m_window) |
| 804 | { |
| 805 | // CMB: ensure dd is not larger than rectangle otherwise we |
| 806 | // get an hour glass shape |
| 807 | wxCoord dd = 2 * rr; |
| 808 | if (dd > ww) dd = ww; |
| 809 | if (dd > hh) dd = hh; |
| 810 | rr = dd / 2; |
| 811 | |
| 812 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 813 | { |
| 814 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 815 | { |
| 816 | gdk_gc_set_ts_origin( m_textGC, |
| 817 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 818 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 819 | gdk_draw_rectangle( m_window, m_textGC, TRUE, xx+rr, yy, ww-dd+1, hh ); |
| 820 | gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); |
| 821 | gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 822 | gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 823 | gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 824 | gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 825 | gdk_gc_set_ts_origin( m_textGC, 0, 0 ); |
| 826 | } else |
| 827 | if (IS_15_PIX_HATCH(m_brush.GetStyle())) |
| 828 | { |
| 829 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); |
| 830 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); |
| 831 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); |
| 832 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 833 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 834 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 835 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 836 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 837 | } else |
| 838 | if (IS_16_PIX_HATCH(m_brush.GetStyle())) |
| 839 | { |
| 840 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); |
| 841 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); |
| 842 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); |
| 843 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 844 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 845 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 846 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 847 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 848 | } else |
| 849 | if (m_brush.GetStyle() == wxSTIPPLE) |
| 850 | { |
| 851 | gdk_gc_set_ts_origin( m_brushGC, |
| 852 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 853 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 854 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); |
| 855 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); |
| 856 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 857 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 858 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 859 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 860 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 861 | } |
| 862 | else |
| 863 | { |
| 864 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); |
| 865 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); |
| 866 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 867 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 868 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 869 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 874 | { |
| 875 | gdk_draw_line( m_window, m_penGC, xx+rr+1, yy, xx+ww-rr, yy ); |
| 876 | gdk_draw_line( m_window, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh ); |
| 877 | gdk_draw_line( m_window, m_penGC, xx, yy+rr+1, xx, yy+hh-rr ); |
| 878 | gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr+1, xx+ww, yy+hh-rr ); |
| 879 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 880 | gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 881 | gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 882 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 883 | } |
| 884 | } |
| 885 | |
| 886 | // this ignores the radius |
| 887 | CalcBoundingBox( x, y ); |
| 888 | CalcBoundingBox( x + width, y + height ); |
| 889 | } |
| 890 | |
| 891 | void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) |
| 892 | { |
| 893 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 894 | |
| 895 | wxCoord xx = XLOG2DEV(x); |
| 896 | wxCoord yy = YLOG2DEV(y); |
| 897 | wxCoord ww = m_signX * XLOG2DEVREL(width); |
| 898 | wxCoord hh = m_signY * YLOG2DEVREL(height); |
| 899 | |
| 900 | // CMB: handle -ve width and/or height |
| 901 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 902 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 903 | |
| 904 | if (m_window) |
| 905 | { |
| 906 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 907 | { |
| 908 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 909 | { |
| 910 | gdk_gc_set_ts_origin( m_textGC, |
| 911 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 912 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 913 | gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); |
| 914 | gdk_gc_set_ts_origin( m_textGC, 0, 0 ); |
| 915 | } else |
| 916 | if (IS_15_PIX_HATCH(m_brush.GetStyle())) |
| 917 | { |
| 918 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); |
| 919 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); |
| 920 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 921 | } else |
| 922 | if (IS_16_PIX_HATCH(m_brush.GetStyle())) |
| 923 | { |
| 924 | gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); |
| 925 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); |
| 926 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 927 | } else |
| 928 | if (m_brush.GetStyle() == wxSTIPPLE) |
| 929 | { |
| 930 | gdk_gc_set_ts_origin( m_brushGC, |
| 931 | m_deviceOriginX % m_brush.GetStipple()->GetWidth(), |
| 932 | m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); |
| 933 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); |
| 934 | gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); |
| 935 | } |
| 936 | else |
| 937 | { |
| 938 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 943 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 ); |
| 944 | } |
| 945 | |
| 946 | CalcBoundingBox( x - width, y - height ); |
| 947 | CalcBoundingBox( x + width, y + height ); |
| 948 | } |
| 949 | |
| 950 | void wxWindowDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) |
| 951 | { |
| 952 | // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why |
| 953 | DoDrawBitmap( (const wxBitmap&)icon, x, y, (bool)TRUE ); |
| 954 | } |
| 955 | |
| 956 | void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap, |
| 957 | wxCoord x, wxCoord y, |
| 958 | bool useMask ) |
| 959 | { |
| 960 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 961 | |
| 962 | wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") ); |
| 963 | |
| 964 | bool is_mono = (bitmap.GetBitmap() != NULL); |
| 965 | |
| 966 | /* scale/translate size and position */ |
| 967 | int xx = XLOG2DEV(x); |
| 968 | int yy = YLOG2DEV(y); |
| 969 | |
| 970 | int w = bitmap.GetWidth(); |
| 971 | int h = bitmap.GetHeight(); |
| 972 | |
| 973 | CalcBoundingBox( x, y ); |
| 974 | CalcBoundingBox( x + w, y + h ); |
| 975 | |
| 976 | if (!m_window) return; |
| 977 | |
| 978 | int ww = XLOG2DEVREL(w); |
| 979 | int hh = YLOG2DEVREL(h); |
| 980 | |
| 981 | /* compare to current clipping region */ |
| 982 | if (!m_currentClippingRegion.IsNull()) |
| 983 | { |
| 984 | wxRegion tmp( xx,yy,ww,hh ); |
| 985 | tmp.Intersect( m_currentClippingRegion ); |
| 986 | if (tmp.IsEmpty()) |
| 987 | return; |
| 988 | } |
| 989 | |
| 990 | /* scale bitmap if required */ |
| 991 | wxBitmap use_bitmap; |
| 992 | if ((w != ww) || (h != hh)) |
| 993 | { |
| 994 | wxImage image( bitmap ); |
| 995 | image.Rescale( ww, hh ); |
| 996 | if (is_mono) |
| 997 | use_bitmap = image.ConvertToMonoBitmap(255,255,255); |
| 998 | else |
| 999 | use_bitmap = image.ConvertToBitmap(); |
| 1000 | } |
| 1001 | else |
| 1002 | { |
| 1003 | use_bitmap = bitmap; |
| 1004 | } |
| 1005 | |
| 1006 | /* apply mask if any */ |
| 1007 | GdkBitmap *mask = (GdkBitmap *) NULL; |
| 1008 | if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); |
| 1009 | |
| 1010 | if (useMask && mask) |
| 1011 | { |
| 1012 | GdkBitmap *new_mask = (GdkBitmap*) NULL; |
| 1013 | if (!m_currentClippingRegion.IsNull()) |
| 1014 | { |
| 1015 | GdkColor col; |
| 1016 | new_mask = gdk_pixmap_new( wxRootWindow->window, ww, hh, 1 ); |
| 1017 | GdkGC *gc = gdk_gc_new( new_mask ); |
| 1018 | col.pixel = 0; |
| 1019 | gdk_gc_set_foreground( gc, &col ); |
| 1020 | gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh ); |
| 1021 | col.pixel = 0; |
| 1022 | gdk_gc_set_background( gc, &col ); |
| 1023 | col.pixel = 1; |
| 1024 | gdk_gc_set_foreground( gc, &col ); |
| 1025 | gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() ); |
| 1026 | gdk_gc_set_clip_origin( gc, -xx, -yy ); |
| 1027 | gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED ); |
| 1028 | gdk_gc_set_stipple( gc, mask ); |
| 1029 | gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh ); |
| 1030 | gdk_gc_unref( gc ); |
| 1031 | } |
| 1032 | |
| 1033 | if (is_mono) |
| 1034 | { |
| 1035 | if (new_mask) |
| 1036 | gdk_gc_set_clip_mask( m_textGC, new_mask ); |
| 1037 | else |
| 1038 | gdk_gc_set_clip_mask( m_textGC, mask ); |
| 1039 | gdk_gc_set_clip_origin( m_textGC, xx, yy ); |
| 1040 | } |
| 1041 | else |
| 1042 | { |
| 1043 | if (new_mask) |
| 1044 | gdk_gc_set_clip_mask( m_penGC, new_mask ); |
| 1045 | else |
| 1046 | gdk_gc_set_clip_mask( m_penGC, mask ); |
| 1047 | gdk_gc_set_clip_origin( m_penGC, xx, yy ); |
| 1048 | } |
| 1049 | if (new_mask) |
| 1050 | gdk_bitmap_unref( new_mask ); |
| 1051 | } |
| 1052 | |
| 1053 | /* Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For |
| 1054 | drawing a mono-bitmap (XBitmap) we use the current text GC */ |
| 1055 | if (is_mono) |
| 1056 | gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), 0, 0, xx, yy, -1, -1 ); |
| 1057 | else |
| 1058 | gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 ); |
| 1059 | |
| 1060 | /* remove mask again if any */ |
| 1061 | if (useMask && mask) |
| 1062 | { |
| 1063 | if (is_mono) |
| 1064 | { |
| 1065 | gdk_gc_set_clip_mask( m_textGC, (GdkBitmap *) NULL ); |
| 1066 | gdk_gc_set_clip_origin( m_textGC, 0, 0 ); |
| 1067 | if (!m_currentClippingRegion.IsNull()) |
| 1068 | gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); |
| 1069 | } |
| 1070 | else |
| 1071 | { |
| 1072 | gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL ); |
| 1073 | gdk_gc_set_clip_origin( m_penGC, 0, 0 ); |
| 1074 | if (!m_currentClippingRegion.IsNull()) |
| 1075 | gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); |
| 1076 | } |
| 1077 | } |
| 1078 | } |
| 1079 | |
| 1080 | bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, |
| 1081 | wxDC *source, wxCoord xsrc, wxCoord ysrc, |
| 1082 | int logical_func, bool useMask ) |
| 1083 | { |
| 1084 | /* this is the nth try to get this utterly useless function to |
| 1085 | work. it now completely ignores the scaling or translation |
| 1086 | of the source dc, but scales correctly on the target dc and |
| 1087 | knows about possible mask information in a memory dc. */ |
| 1088 | |
| 1089 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid window dc") ); |
| 1090 | |
| 1091 | wxCHECK_MSG( source, FALSE, wxT("invalid source dc") ); |
| 1092 | |
| 1093 | if (!m_window) return FALSE; |
| 1094 | |
| 1095 | wxClientDC *srcDC = (wxClientDC*)source; |
| 1096 | wxMemoryDC *memDC = (wxMemoryDC*)source; |
| 1097 | |
| 1098 | bool use_bitmap_method = FALSE; |
| 1099 | bool is_mono = FALSE; |
| 1100 | |
| 1101 | if (srcDC->m_isMemDC) |
| 1102 | { |
| 1103 | if (!memDC->m_selected.Ok()) return FALSE; |
| 1104 | |
| 1105 | /* we use the "XCopyArea" way to copy a memory dc into |
| 1106 | y different window if the memory dc BOTH |
| 1107 | a) doesn't have any mask or its mask isn't used |
| 1108 | b) it is clipped |
| 1109 | c) is not 1-bit */ |
| 1110 | |
| 1111 | if (useMask && (memDC->m_selected.GetMask())) |
| 1112 | { |
| 1113 | /* we HAVE TO use the direct way for memory dcs |
| 1114 | that have mask since the XCopyArea doesn't know |
| 1115 | about masks */ |
| 1116 | use_bitmap_method = TRUE; |
| 1117 | } |
| 1118 | else if (memDC->m_selected.GetDepth() == 1) |
| 1119 | { |
| 1120 | /* we HAVE TO use the direct way for memory dcs |
| 1121 | that are bitmaps because XCopyArea doesn't cope |
| 1122 | with different bit depths */ |
| 1123 | is_mono = TRUE; |
| 1124 | use_bitmap_method = TRUE; |
| 1125 | } |
| 1126 | else if ((xsrc == 0) && (ysrc == 0) && |
| 1127 | (width == memDC->m_selected.GetWidth()) && |
| 1128 | (height == memDC->m_selected.GetHeight())) |
| 1129 | { |
| 1130 | /* we SHOULD use the direct way if all of the bitmap |
| 1131 | in the memory dc is copied in which case XCopyArea |
| 1132 | wouldn't be able able to boost performace by reducing |
| 1133 | the area to be scaled */ |
| 1134 | use_bitmap_method = TRUE; |
| 1135 | } |
| 1136 | else |
| 1137 | { |
| 1138 | use_bitmap_method = FALSE; |
| 1139 | } |
| 1140 | } |
| 1141 | |
| 1142 | CalcBoundingBox( xdest, ydest ); |
| 1143 | CalcBoundingBox( xdest + width, ydest + height ); |
| 1144 | |
| 1145 | /* scale/translate size and position */ |
| 1146 | wxCoord xx = XLOG2DEV(xdest); |
| 1147 | wxCoord yy = YLOG2DEV(ydest); |
| 1148 | |
| 1149 | wxCoord ww = XLOG2DEVREL(width); |
| 1150 | wxCoord hh = YLOG2DEVREL(height); |
| 1151 | |
| 1152 | /* compare to current clipping region */ |
| 1153 | if (!m_currentClippingRegion.IsNull()) |
| 1154 | { |
| 1155 | wxRegion tmp( xx,yy,ww,hh ); |
| 1156 | tmp.Intersect( m_currentClippingRegion ); |
| 1157 | if (tmp.IsEmpty()) |
| 1158 | return TRUE; |
| 1159 | } |
| 1160 | |
| 1161 | int old_logical_func = m_logicalFunction; |
| 1162 | SetLogicalFunction( logical_func ); |
| 1163 | |
| 1164 | if (use_bitmap_method) |
| 1165 | { |
| 1166 | /* scale/translate bitmap size */ |
| 1167 | wxCoord bm_width = memDC->m_selected.GetWidth(); |
| 1168 | wxCoord bm_height = memDC->m_selected.GetHeight(); |
| 1169 | |
| 1170 | wxCoord bm_ww = XLOG2DEVREL( bm_width ); |
| 1171 | wxCoord bm_hh = YLOG2DEVREL( bm_height ); |
| 1172 | |
| 1173 | /* scale bitmap if required */ |
| 1174 | wxBitmap use_bitmap; |
| 1175 | |
| 1176 | if ((bm_width != bm_ww) || (bm_height != bm_hh)) |
| 1177 | { |
| 1178 | wxImage image( memDC->m_selected ); |
| 1179 | image = image.Scale( bm_ww, bm_hh ); |
| 1180 | |
| 1181 | if (is_mono) |
| 1182 | use_bitmap = image.ConvertToMonoBitmap(255,255,255); |
| 1183 | else |
| 1184 | use_bitmap = image.ConvertToBitmap(); |
| 1185 | } |
| 1186 | else |
| 1187 | { |
| 1188 | use_bitmap = memDC->m_selected; |
| 1189 | } |
| 1190 | |
| 1191 | /* apply mask if any */ |
| 1192 | GdkBitmap *mask = (GdkBitmap *) NULL; |
| 1193 | if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); |
| 1194 | |
| 1195 | if (useMask && mask) |
| 1196 | { |
| 1197 | GdkBitmap *new_mask = (GdkBitmap*) NULL; |
| 1198 | if (!m_currentClippingRegion.IsNull()) |
| 1199 | { |
| 1200 | GdkColor col; |
| 1201 | new_mask = gdk_pixmap_new( wxRootWindow->window, bm_ww, bm_hh, 1 ); |
| 1202 | GdkGC *gc = gdk_gc_new( new_mask ); |
| 1203 | col.pixel = 0; |
| 1204 | gdk_gc_set_foreground( gc, &col ); |
| 1205 | gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh ); |
| 1206 | col.pixel = 0; |
| 1207 | gdk_gc_set_background( gc, &col ); |
| 1208 | col.pixel = 1; |
| 1209 | gdk_gc_set_foreground( gc, &col ); |
| 1210 | gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() ); |
| 1211 | gdk_gc_set_clip_origin( gc, -xx, -yy ); |
| 1212 | gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED ); |
| 1213 | gdk_gc_set_stipple( gc, mask ); |
| 1214 | gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh ); |
| 1215 | gdk_gc_unref( gc ); |
| 1216 | } |
| 1217 | |
| 1218 | if (is_mono) |
| 1219 | { |
| 1220 | if (new_mask) |
| 1221 | gdk_gc_set_clip_mask( m_textGC, new_mask ); |
| 1222 | else |
| 1223 | gdk_gc_set_clip_mask( m_textGC, mask ); |
| 1224 | gdk_gc_set_clip_origin( m_textGC, xx, yy ); |
| 1225 | } |
| 1226 | else |
| 1227 | { |
| 1228 | if (new_mask) |
| 1229 | gdk_gc_set_clip_mask( m_penGC, new_mask ); |
| 1230 | else |
| 1231 | gdk_gc_set_clip_mask( m_penGC, mask ); |
| 1232 | gdk_gc_set_clip_origin( m_penGC, xx, yy ); |
| 1233 | } |
| 1234 | if (new_mask) |
| 1235 | gdk_bitmap_unref( new_mask ); |
| 1236 | } |
| 1237 | |
| 1238 | /* Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For |
| 1239 | drawing a mono-bitmap (XBitmap) we use the current text GC */ |
| 1240 | |
| 1241 | if (is_mono) |
| 1242 | gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, xx, yy, ww, hh ); |
| 1243 | else |
| 1244 | gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh ); |
| 1245 | |
| 1246 | /* remove mask again if any */ |
| 1247 | if (useMask && mask) |
| 1248 | { |
| 1249 | if (is_mono) |
| 1250 | { |
| 1251 | gdk_gc_set_clip_mask( m_textGC, (GdkBitmap *) NULL ); |
| 1252 | gdk_gc_set_clip_origin( m_textGC, 0, 0 ); |
| 1253 | if (!m_currentClippingRegion.IsNull()) |
| 1254 | gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); |
| 1255 | } |
| 1256 | else |
| 1257 | { |
| 1258 | gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL ); |
| 1259 | gdk_gc_set_clip_origin( m_penGC, 0, 0 ); |
| 1260 | if (!m_currentClippingRegion.IsNull()) |
| 1261 | gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); |
| 1262 | } |
| 1263 | } |
| 1264 | } |
| 1265 | else /* use_bitmap_method */ |
| 1266 | { |
| 1267 | if ((width != ww) || (height != hh)) |
| 1268 | { |
| 1269 | /* draw source window into a bitmap as we cannot scale |
| 1270 | a window in contrast to a bitmap. this would actually |
| 1271 | work with memory dcs as well, but we'd lose the mask |
| 1272 | information and waste one step in this process since |
| 1273 | a memory already has a bitmap. all this is slightly |
| 1274 | inefficient as we could take an XImage directly from |
| 1275 | an X window, but we'd then also have to care that |
| 1276 | the window is not outside the screen (in which case |
| 1277 | we'd get a BadMatch or what not). |
| 1278 | Is a double XGetImage and combined XGetPixel and |
| 1279 | XPutPixel really faster? I'm not sure. look at wxXt |
| 1280 | for a different implementation of the same problem. */ |
| 1281 | |
| 1282 | wxBitmap bitmap( width, height ); |
| 1283 | |
| 1284 | /* copy including child window contents */ |
| 1285 | gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS ); |
| 1286 | gdk_window_copy_area( bitmap.GetPixmap(), m_penGC, 0, 0, |
| 1287 | srcDC->GetWindow(), |
| 1288 | xsrc, ysrc, width, height ); |
| 1289 | gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN ); |
| 1290 | |
| 1291 | /* scale image */ |
| 1292 | wxImage image( bitmap ); |
| 1293 | image = image.Scale( ww, hh ); |
| 1294 | |
| 1295 | /* convert to bitmap */ |
| 1296 | bitmap = image.ConvertToBitmap(); |
| 1297 | |
| 1298 | /* draw scaled bitmap */ |
| 1299 | gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 ); |
| 1300 | |
| 1301 | } |
| 1302 | else |
| 1303 | { |
| 1304 | /* No scaling and not a memory dc with a mask either */ |
| 1305 | |
| 1306 | /* copy including child window contents */ |
| 1307 | gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS ); |
| 1308 | gdk_window_copy_area( m_window, m_penGC, xx, yy, |
| 1309 | srcDC->GetWindow(), |
| 1310 | xsrc, ysrc, width, height ); |
| 1311 | gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN ); |
| 1312 | } |
| 1313 | } |
| 1314 | |
| 1315 | SetLogicalFunction( old_logical_func ); |
| 1316 | return TRUE; |
| 1317 | } |
| 1318 | |
| 1319 | void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y ) |
| 1320 | { |
| 1321 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1322 | |
| 1323 | if (!m_window) return; |
| 1324 | |
| 1325 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 1326 | |
| 1327 | wxCHECK_RET( font, wxT("invalid font") ); |
| 1328 | |
| 1329 | #ifdef __WXGTK20__ |
| 1330 | wxCHECK_RET( m_context, wxT("no Pango context") ); |
| 1331 | #endif |
| 1332 | |
| 1333 | x = XLOG2DEV(x); |
| 1334 | y = YLOG2DEV(y); |
| 1335 | |
| 1336 | #ifdef __WXGTK20__ |
| 1337 | /* FIXME: the layout engine should probably be abstracted at a higher level in wxDC... */ |
| 1338 | PangoLayout *layout = pango_layout_new(m_context); |
| 1339 | pango_layout_set_font_description(layout, m_fontdesc); |
| 1340 | { |
| 1341 | wxWX2MBbuf data = text.mb_str(wxConvUTF8); |
| 1342 | pango_layout_set_text(layout, data, strlen(data)); |
| 1343 | } |
| 1344 | PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data; |
| 1345 | PangoRectangle rect; |
| 1346 | pango_layout_line_get_extents(line, NULL, &rect); |
| 1347 | wxCoord width = rect.width; |
| 1348 | wxCoord height = rect.height; |
| 1349 | gdk_draw_layout( m_window, m_textGC, x, y, layout ); |
| 1350 | #else |
| 1351 | wxCoord width = gdk_string_width( font, text.mbc_str() ); |
| 1352 | wxCoord height = font->ascent + font->descent; |
| 1353 | /* CMB 21/5/98: draw text background if mode is wxSOLID */ |
| 1354 | if (m_backgroundMode == wxSOLID) |
| 1355 | { |
| 1356 | gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() ); |
| 1357 | gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height ); |
| 1358 | gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); |
| 1359 | } |
| 1360 | gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() ); |
| 1361 | #endif |
| 1362 | |
| 1363 | /* CMB 17/7/98: simple underline: ignores scaling and underlying |
| 1364 | X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS |
| 1365 | properties (see wxXt implementation) */ |
| 1366 | if (m_font.GetUnderlined()) |
| 1367 | { |
| 1368 | wxCoord ul_y = y + font->ascent; |
| 1369 | if (font->descent > 0) ul_y++; |
| 1370 | gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y); |
| 1371 | } |
| 1372 | |
| 1373 | #ifdef __WXGTK20__ |
| 1374 | g_object_unref( G_OBJECT( layout ) ); |
| 1375 | #endif |
| 1376 | |
| 1377 | width = wxCoord(width / m_scaleX); |
| 1378 | height = wxCoord(height / m_scaleY); |
| 1379 | CalcBoundingBox (x + width, y + height); |
| 1380 | CalcBoundingBox (x, y); |
| 1381 | } |
| 1382 | |
| 1383 | void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle ) |
| 1384 | { |
| 1385 | if (angle == 0.0) |
| 1386 | { |
| 1387 | DrawText(text, x, y); |
| 1388 | return; |
| 1389 | } |
| 1390 | |
| 1391 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1392 | |
| 1393 | if (!m_window) return; |
| 1394 | |
| 1395 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 1396 | |
| 1397 | wxCHECK_RET( font, wxT("invalid font") ); |
| 1398 | |
| 1399 | // the size of the text |
| 1400 | wxCoord w = gdk_string_width( font, text.mbc_str() ); |
| 1401 | wxCoord h = font->ascent + font->descent; |
| 1402 | |
| 1403 | // draw the string normally |
| 1404 | wxBitmap src(w, h); |
| 1405 | wxMemoryDC dc; |
| 1406 | dc.SelectObject(src); |
| 1407 | dc.SetFont(GetFont()); |
| 1408 | dc.SetBackground(*wxWHITE_BRUSH); |
| 1409 | dc.SetBrush(*wxBLACK_BRUSH); |
| 1410 | dc.Clear(); |
| 1411 | dc.DrawText(text, 0, 0); |
| 1412 | dc.SetFont(wxNullFont); |
| 1413 | dc.SelectObject(wxNullBitmap); |
| 1414 | |
| 1415 | // Calculate the size of the rotated bounding box. |
| 1416 | double rad = DegToRad(angle); |
| 1417 | double dx = cos(rad), |
| 1418 | dy = sin(rad); |
| 1419 | |
| 1420 | // the rectngle vertices are counted clockwise with the first one being at |
| 1421 | // (0, 0) (or, rather, at (x, y)) |
| 1422 | double x2 = w*dx, |
| 1423 | y2 = -w*dy; // y axis points to the bottom, hence minus |
| 1424 | double x4 = h*dy, |
| 1425 | y4 = h*dx; |
| 1426 | double x3 = x4 + x2, |
| 1427 | y3 = y4 + y2; |
| 1428 | |
| 1429 | // calc max and min |
| 1430 | wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5), |
| 1431 | maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5), |
| 1432 | minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5), |
| 1433 | minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5); |
| 1434 | |
| 1435 | // prepare to blit-with-rotate the bitmap to the DC |
| 1436 | wxImage image(src); |
| 1437 | |
| 1438 | GdkColor *colText = m_textForegroundColour.GetColor(), |
| 1439 | *colBack = m_textBackgroundColour.GetColor(); |
| 1440 | |
| 1441 | bool textColSet = TRUE; |
| 1442 | |
| 1443 | unsigned char *data = image.GetData(); |
| 1444 | |
| 1445 | // paint pixel by pixel |
| 1446 | for ( wxCoord srcX = 0; srcX < w; srcX++ ) |
| 1447 | { |
| 1448 | for ( wxCoord srcY = 0; srcY < h; srcY++ ) |
| 1449 | { |
| 1450 | // transform source coords to dest coords |
| 1451 | double r = sqrt((double)srcX*srcX + srcY*srcY); |
| 1452 | double angleOrig = atan2((double)srcY, (double)srcX) - rad; |
| 1453 | wxCoord dstX = (wxCoord)(r*cos(angleOrig) + 0.5), |
| 1454 | dstY = (wxCoord)(r*sin(angleOrig) + 0.5); |
| 1455 | |
| 1456 | // black pixel? |
| 1457 | bool textPixel = data[(srcY*w + srcX)*3] == 0; |
| 1458 | if ( textPixel || (m_backgroundMode == wxSOLID) ) |
| 1459 | { |
| 1460 | // change colour if needed |
| 1461 | if ( textPixel != textColSet ) |
| 1462 | { |
| 1463 | gdk_gc_set_foreground( m_textGC, textPixel ? colText |
| 1464 | : colBack ); |
| 1465 | |
| 1466 | textColSet = textPixel; |
| 1467 | } |
| 1468 | |
| 1469 | // don't use DrawPoint() because it uses the current pen |
| 1470 | // colour, and we don't need it here |
| 1471 | gdk_draw_point( m_window, m_textGC, |
| 1472 | XLOG2DEV(x + dstX), YLOG2DEV(y + dstY) ); |
| 1473 | } |
| 1474 | } |
| 1475 | } |
| 1476 | |
| 1477 | // it would be better to draw with non underlined font and draw the line |
| 1478 | // manually here (it would be more straight...) |
| 1479 | #if 0 |
| 1480 | if ( m_font.GetUnderlined() ) |
| 1481 | { |
| 1482 | gdk_draw_line( m_window, m_textGC, |
| 1483 | XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent), |
| 1484 | XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent)); |
| 1485 | } |
| 1486 | #endif // 0 |
| 1487 | |
| 1488 | // restore the font colour |
| 1489 | gdk_gc_set_foreground( m_textGC, colText ); |
| 1490 | |
| 1491 | // update the bounding box |
| 1492 | CalcBoundingBox(x + minX, y + minY); |
| 1493 | CalcBoundingBox(x + maxX, y + maxY); |
| 1494 | } |
| 1495 | |
| 1496 | void wxWindowDC::DoGetTextExtent(const wxString &string, |
| 1497 | wxCoord *width, wxCoord *height, |
| 1498 | wxCoord *descent, wxCoord *externalLeading, |
| 1499 | wxFont *theFont) const |
| 1500 | { |
| 1501 | wxFont fontToUse = m_font; |
| 1502 | if (theFont) fontToUse = *theFont; |
| 1503 | |
| 1504 | GdkFont *font = fontToUse.GetInternalFont( m_scaleY ); |
| 1505 | if (width) (*width) = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX); |
| 1506 | if (height) (*height) = wxCoord((font->ascent + font->descent) / m_scaleY); |
| 1507 | if (descent) (*descent) = wxCoord(font->descent / m_scaleY); |
| 1508 | if (externalLeading) (*externalLeading) = 0; // ?? |
| 1509 | } |
| 1510 | |
| 1511 | wxCoord wxWindowDC::GetCharWidth() const |
| 1512 | { |
| 1513 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 1514 | wxCHECK_MSG( font, -1, wxT("invalid font") ); |
| 1515 | |
| 1516 | return wxCoord(gdk_string_width( font, "H" ) / m_scaleX); |
| 1517 | } |
| 1518 | |
| 1519 | wxCoord wxWindowDC::GetCharHeight() const |
| 1520 | { |
| 1521 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 1522 | wxCHECK_MSG( font, -1, wxT("invalid font") ); |
| 1523 | |
| 1524 | return wxCoord((font->ascent + font->descent) / m_scaleY); |
| 1525 | } |
| 1526 | |
| 1527 | void wxWindowDC::Clear() |
| 1528 | { |
| 1529 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1530 | |
| 1531 | if (!m_window) return; |
| 1532 | |
| 1533 | /* - we either are a memory dc or have a window as the |
| 1534 | owner. anything else shouldn't happen. |
| 1535 | - we don't use gdk_window_clear() as we don't set |
| 1536 | the window's background colour anymore. it is too |
| 1537 | much pain to keep the DC's and the window's back- |
| 1538 | ground colour in synch. */ |
| 1539 | |
| 1540 | if (m_owner) |
| 1541 | { |
| 1542 | int width,height; |
| 1543 | m_owner->GetSize( &width, &height ); |
| 1544 | gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height ); |
| 1545 | return; |
| 1546 | } |
| 1547 | |
| 1548 | if (m_isMemDC) |
| 1549 | { |
| 1550 | int width,height; |
| 1551 | GetSize( &width, &height ); |
| 1552 | gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height ); |
| 1553 | return; |
| 1554 | } |
| 1555 | } |
| 1556 | |
| 1557 | void wxWindowDC::SetFont( const wxFont &font ) |
| 1558 | { |
| 1559 | m_font = font; |
| 1560 | #ifdef __WXGTK20__ |
| 1561 | // fix fontdesc? |
| 1562 | #endif |
| 1563 | } |
| 1564 | |
| 1565 | void wxWindowDC::SetPen( const wxPen &pen ) |
| 1566 | { |
| 1567 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1568 | |
| 1569 | if (m_pen == pen) return; |
| 1570 | |
| 1571 | m_pen = pen; |
| 1572 | |
| 1573 | if (!m_pen.Ok()) return; |
| 1574 | |
| 1575 | if (!m_window) return; |
| 1576 | |
| 1577 | gint width = m_pen.GetWidth(); |
| 1578 | if (width <= 0) |
| 1579 | { |
| 1580 | // CMB: if width is non-zero scale it with the dc |
| 1581 | width = 1; |
| 1582 | } |
| 1583 | else |
| 1584 | { |
| 1585 | // X doesn't allow different width in x and y and so we take |
| 1586 | // the average |
| 1587 | double w = 0.5 + |
| 1588 | ( fabs((double) XLOG2DEVREL(width)) + |
| 1589 | fabs((double) YLOG2DEVREL(width)) ) / 2.0; |
| 1590 | width = (int)w; |
| 1591 | } |
| 1592 | |
| 1593 | static const wxGTKDash dotted[] = {1, 1}; |
| 1594 | static const wxGTKDash short_dashed[] = {2, 2}; |
| 1595 | static const wxGTKDash wxCoord_dashed[] = {2, 4}; |
| 1596 | static const wxGTKDash dotted_dashed[] = {3, 3, 1, 3}; |
| 1597 | |
| 1598 | // We express dash pattern in pen width unit, so we are |
| 1599 | // independent of zoom factor and so on... |
| 1600 | int req_nb_dash; |
| 1601 | const wxGTKDash *req_dash; |
| 1602 | |
| 1603 | GdkLineStyle lineStyle = GDK_LINE_SOLID; |
| 1604 | switch (m_pen.GetStyle()) |
| 1605 | { |
| 1606 | case wxUSER_DASH: |
| 1607 | { |
| 1608 | lineStyle = GDK_LINE_ON_OFF_DASH; |
| 1609 | req_nb_dash = m_pen.GetDashCount(); |
| 1610 | req_dash = (wxGTKDash*)m_pen.GetDash(); |
| 1611 | break; |
| 1612 | } |
| 1613 | case wxDOT: |
| 1614 | { |
| 1615 | lineStyle = GDK_LINE_ON_OFF_DASH; |
| 1616 | req_nb_dash = 2; |
| 1617 | req_dash = dotted; |
| 1618 | break; |
| 1619 | } |
| 1620 | case wxLONG_DASH: |
| 1621 | { |
| 1622 | lineStyle = GDK_LINE_ON_OFF_DASH; |
| 1623 | req_nb_dash = 2; |
| 1624 | req_dash = wxCoord_dashed; |
| 1625 | break; |
| 1626 | } |
| 1627 | case wxSHORT_DASH: |
| 1628 | { |
| 1629 | lineStyle = GDK_LINE_ON_OFF_DASH; |
| 1630 | req_nb_dash = 2; |
| 1631 | req_dash = short_dashed; |
| 1632 | break; |
| 1633 | } |
| 1634 | case wxDOT_DASH: |
| 1635 | { |
| 1636 | // lineStyle = GDK_LINE_DOUBLE_DASH; |
| 1637 | lineStyle = GDK_LINE_ON_OFF_DASH; |
| 1638 | req_nb_dash = 4; |
| 1639 | req_dash = dotted_dashed; |
| 1640 | break; |
| 1641 | } |
| 1642 | |
| 1643 | case wxTRANSPARENT: |
| 1644 | case wxSTIPPLE_MASK_OPAQUE: |
| 1645 | case wxSTIPPLE: |
| 1646 | case wxSOLID: |
| 1647 | default: |
| 1648 | { |
| 1649 | lineStyle = GDK_LINE_SOLID; |
| 1650 | req_dash = (wxGTKDash*)NULL; |
| 1651 | req_nb_dash = 0; |
| 1652 | break; |
| 1653 | } |
| 1654 | } |
| 1655 | |
| 1656 | #if (GTK_MINOR_VERSION > 0) || (GTK_MAJOR_VERSION > 1) |
| 1657 | if (req_dash && req_nb_dash) |
| 1658 | { |
| 1659 | wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash]; |
| 1660 | if (real_req_dash) |
| 1661 | { |
| 1662 | for (int i = 0; i < req_nb_dash; i++) |
| 1663 | real_req_dash[i] = req_dash[i] * width; |
| 1664 | gdk_gc_set_dashes( m_penGC, 0, real_req_dash, req_nb_dash ); |
| 1665 | delete[] real_req_dash; |
| 1666 | } |
| 1667 | else |
| 1668 | { |
| 1669 | // No Memory. We use non-scaled dash pattern... |
| 1670 | gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash ); |
| 1671 | } |
| 1672 | } |
| 1673 | #endif |
| 1674 | |
| 1675 | GdkCapStyle capStyle = GDK_CAP_ROUND; |
| 1676 | switch (m_pen.GetCap()) |
| 1677 | { |
| 1678 | case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; } |
| 1679 | case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; } |
| 1680 | case wxCAP_ROUND: |
| 1681 | default: |
| 1682 | { |
| 1683 | if (width <= 1) |
| 1684 | { |
| 1685 | width = 0; |
| 1686 | capStyle = GDK_CAP_NOT_LAST; |
| 1687 | } |
| 1688 | else |
| 1689 | { |
| 1690 | capStyle = GDK_CAP_ROUND; |
| 1691 | } |
| 1692 | break; |
| 1693 | } |
| 1694 | } |
| 1695 | |
| 1696 | GdkJoinStyle joinStyle = GDK_JOIN_ROUND; |
| 1697 | switch (m_pen.GetJoin()) |
| 1698 | { |
| 1699 | case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; } |
| 1700 | case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; } |
| 1701 | case wxJOIN_ROUND: |
| 1702 | default: { joinStyle = GDK_JOIN_ROUND; break; } |
| 1703 | } |
| 1704 | |
| 1705 | gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle ); |
| 1706 | |
| 1707 | m_pen.GetColour().CalcPixel( m_cmap ); |
| 1708 | gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() ); |
| 1709 | } |
| 1710 | |
| 1711 | void wxWindowDC::SetBrush( const wxBrush &brush ) |
| 1712 | { |
| 1713 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1714 | |
| 1715 | if (m_brush == brush) return; |
| 1716 | |
| 1717 | m_brush = brush; |
| 1718 | |
| 1719 | if (!m_brush.Ok()) return; |
| 1720 | |
| 1721 | if (!m_window) return; |
| 1722 | |
| 1723 | m_brush.GetColour().CalcPixel( m_cmap ); |
| 1724 | gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() ); |
| 1725 | |
| 1726 | gdk_gc_set_fill( m_brushGC, GDK_SOLID ); |
| 1727 | |
| 1728 | if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->Ok())) |
| 1729 | { |
| 1730 | if (m_brush.GetStipple()->GetPixmap()) |
| 1731 | { |
| 1732 | gdk_gc_set_fill( m_brushGC, GDK_TILED ); |
| 1733 | gdk_gc_set_tile( m_brushGC, m_brush.GetStipple()->GetPixmap() ); |
| 1734 | } |
| 1735 | else |
| 1736 | { |
| 1737 | gdk_gc_set_fill( m_brushGC, GDK_STIPPLED ); |
| 1738 | gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetBitmap() ); |
| 1739 | } |
| 1740 | } |
| 1741 | |
| 1742 | if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) |
| 1743 | { |
| 1744 | gdk_gc_set_fill( m_textGC, GDK_OPAQUE_STIPPLED); |
| 1745 | gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() ); |
| 1746 | } |
| 1747 | |
| 1748 | if (IS_HATCH(m_brush.GetStyle())) |
| 1749 | { |
| 1750 | gdk_gc_set_fill( m_brushGC, GDK_STIPPLED ); |
| 1751 | int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH; |
| 1752 | gdk_gc_set_stipple( m_brushGC, hatches[num] ); |
| 1753 | } |
| 1754 | } |
| 1755 | |
| 1756 | void wxWindowDC::SetBackground( const wxBrush &brush ) |
| 1757 | { |
| 1758 | /* CMB 21/7/98: Added SetBackground. Sets background brush |
| 1759 | * for Clear() and bg colour for shapes filled with cross-hatch brush */ |
| 1760 | |
| 1761 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1762 | |
| 1763 | if (m_backgroundBrush == brush) return; |
| 1764 | |
| 1765 | m_backgroundBrush = brush; |
| 1766 | |
| 1767 | if (!m_backgroundBrush.Ok()) return; |
| 1768 | |
| 1769 | if (!m_window) return; |
| 1770 | |
| 1771 | m_backgroundBrush.GetColour().CalcPixel( m_cmap ); |
| 1772 | gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() ); |
| 1773 | gdk_gc_set_background( m_penGC, m_backgroundBrush.GetColour().GetColor() ); |
| 1774 | gdk_gc_set_background( m_bgGC, m_backgroundBrush.GetColour().GetColor() ); |
| 1775 | gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() ); |
| 1776 | |
| 1777 | gdk_gc_set_fill( m_bgGC, GDK_SOLID ); |
| 1778 | |
| 1779 | if ((m_backgroundBrush.GetStyle() == wxSTIPPLE) && (m_backgroundBrush.GetStipple()->Ok())) |
| 1780 | { |
| 1781 | if (m_backgroundBrush.GetStipple()->GetPixmap()) |
| 1782 | { |
| 1783 | gdk_gc_set_fill( m_bgGC, GDK_TILED ); |
| 1784 | gdk_gc_set_tile( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() ); |
| 1785 | } |
| 1786 | else |
| 1787 | { |
| 1788 | gdk_gc_set_fill( m_bgGC, GDK_STIPPLED ); |
| 1789 | gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetBitmap() ); |
| 1790 | } |
| 1791 | } |
| 1792 | |
| 1793 | if (IS_HATCH(m_backgroundBrush.GetStyle())) |
| 1794 | { |
| 1795 | gdk_gc_set_fill( m_bgGC, GDK_STIPPLED ); |
| 1796 | int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH; |
| 1797 | gdk_gc_set_stipple( m_bgGC, hatches[num] ); |
| 1798 | } |
| 1799 | } |
| 1800 | |
| 1801 | void wxWindowDC::SetLogicalFunction( int function ) |
| 1802 | { |
| 1803 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1804 | |
| 1805 | if (m_logicalFunction == function) |
| 1806 | return; |
| 1807 | |
| 1808 | // VZ: shouldn't this be a CHECK? |
| 1809 | if (!m_window) |
| 1810 | return; |
| 1811 | |
| 1812 | GdkFunction mode = GDK_COPY; |
| 1813 | switch (function) |
| 1814 | { |
| 1815 | case wxXOR: mode = GDK_XOR; break; |
| 1816 | case wxINVERT: mode = GDK_INVERT; break; |
| 1817 | #if (GTK_MINOR_VERSION > 0) |
| 1818 | case wxOR_REVERSE: mode = GDK_OR_REVERSE; break; |
| 1819 | case wxAND_REVERSE: mode = GDK_AND_REVERSE; break; |
| 1820 | case wxCLEAR: mode = GDK_CLEAR; break; |
| 1821 | case wxSET: mode = GDK_SET; break; |
| 1822 | case wxOR_INVERT: mode = GDK_OR_INVERT; break; |
| 1823 | case wxAND: mode = GDK_AND; break; |
| 1824 | case wxOR: mode = GDK_OR; break; |
| 1825 | case wxEQUIV: mode = GDK_EQUIV; break; |
| 1826 | case wxNAND: mode = GDK_NAND; break; |
| 1827 | case wxAND_INVERT: mode = GDK_AND_INVERT; break; |
| 1828 | case wxCOPY: mode = GDK_COPY; break; |
| 1829 | case wxNO_OP: mode = GDK_NOOP; break; |
| 1830 | case wxSRC_INVERT: mode = GDK_COPY_INVERT; break; |
| 1831 | |
| 1832 | // unsupported by GTK |
| 1833 | case wxNOR: mode = GDK_COPY; break; |
| 1834 | #endif |
| 1835 | default: |
| 1836 | { |
| 1837 | wxFAIL_MSG( wxT("unsupported logical function") ); |
| 1838 | break; |
| 1839 | } |
| 1840 | } |
| 1841 | |
| 1842 | m_logicalFunction = function; |
| 1843 | |
| 1844 | gdk_gc_set_function( m_penGC, mode ); |
| 1845 | gdk_gc_set_function( m_brushGC, mode ); |
| 1846 | |
| 1847 | // to stay compatible with wxMSW, we don't apply ROPs to the text |
| 1848 | // operations (i.e. DrawText/DrawRotatedText). |
| 1849 | // True, but mono-bitmaps use the m_textGC and they use ROPs as well. |
| 1850 | gdk_gc_set_function( m_textGC, mode ); |
| 1851 | } |
| 1852 | |
| 1853 | void wxWindowDC::SetTextForeground( const wxColour &col ) |
| 1854 | { |
| 1855 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1856 | |
| 1857 | if (m_textForegroundColour == col) return; |
| 1858 | |
| 1859 | m_textForegroundColour = col; |
| 1860 | if (!m_textForegroundColour.Ok()) return; |
| 1861 | |
| 1862 | if (!m_window) return; |
| 1863 | |
| 1864 | m_textForegroundColour.CalcPixel( m_cmap ); |
| 1865 | gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); |
| 1866 | } |
| 1867 | |
| 1868 | void wxWindowDC::SetTextBackground( const wxColour &col ) |
| 1869 | { |
| 1870 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1871 | |
| 1872 | if (m_textBackgroundColour == col) return; |
| 1873 | |
| 1874 | m_textBackgroundColour = col; |
| 1875 | if (!m_textBackgroundColour.Ok()) return; |
| 1876 | |
| 1877 | if (!m_window) return; |
| 1878 | |
| 1879 | m_textBackgroundColour.CalcPixel( m_cmap ); |
| 1880 | gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() ); |
| 1881 | } |
| 1882 | |
| 1883 | void wxWindowDC::SetBackgroundMode( int mode ) |
| 1884 | { |
| 1885 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1886 | |
| 1887 | m_backgroundMode = mode; |
| 1888 | |
| 1889 | if (!m_window) return; |
| 1890 | |
| 1891 | // CMB 21/7/98: fill style of cross-hatch brushes is affected by |
| 1892 | // transparent/solid background mode |
| 1893 | |
| 1894 | if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT) |
| 1895 | { |
| 1896 | gdk_gc_set_fill( m_brushGC, |
| 1897 | (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED); |
| 1898 | } |
| 1899 | } |
| 1900 | |
| 1901 | void wxWindowDC::SetPalette( const wxPalette& WXUNUSED(palette) ) |
| 1902 | { |
| 1903 | wxFAIL_MSG( wxT("wxWindowDC::SetPalette not implemented") ); |
| 1904 | } |
| 1905 | |
| 1906 | void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) |
| 1907 | { |
| 1908 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1909 | |
| 1910 | if (!m_window) return; |
| 1911 | |
| 1912 | wxRect rect; |
| 1913 | rect.x = XLOG2DEV(x); |
| 1914 | rect.y = YLOG2DEV(y); |
| 1915 | rect.width = XLOG2DEVREL(width); |
| 1916 | rect.height = YLOG2DEVREL(height); |
| 1917 | |
| 1918 | if (!m_currentClippingRegion.IsNull()) |
| 1919 | m_currentClippingRegion.Intersect( rect ); |
| 1920 | else |
| 1921 | m_currentClippingRegion.Union( rect ); |
| 1922 | |
| 1923 | #if USE_PAINT_REGION |
| 1924 | if (!m_paintClippingRegion.IsNull()) |
| 1925 | m_currentClippingRegion.Intersect( m_paintClippingRegion ); |
| 1926 | #endif |
| 1927 | |
| 1928 | wxCoord xx, yy, ww, hh; |
| 1929 | m_currentClippingRegion.GetBox( xx, yy, ww, hh ); |
| 1930 | wxDC::DoSetClippingRegion( xx, yy, ww, hh ); |
| 1931 | |
| 1932 | gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); |
| 1933 | gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() ); |
| 1934 | gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); |
| 1935 | gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() ); |
| 1936 | } |
| 1937 | |
| 1938 | void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion ®ion ) |
| 1939 | { |
| 1940 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1941 | |
| 1942 | if (region.Empty()) |
| 1943 | { |
| 1944 | DestroyClippingRegion(); |
| 1945 | return; |
| 1946 | } |
| 1947 | |
| 1948 | if (!m_window) return; |
| 1949 | |
| 1950 | if (!m_currentClippingRegion.IsNull()) |
| 1951 | m_currentClippingRegion.Intersect( region ); |
| 1952 | else |
| 1953 | m_currentClippingRegion.Union( region ); |
| 1954 | |
| 1955 | #if USE_PAINT_REGION |
| 1956 | if (!m_paintClippingRegion.IsNull()) |
| 1957 | m_currentClippingRegion.Intersect( m_paintClippingRegion ); |
| 1958 | #endif |
| 1959 | |
| 1960 | wxCoord xx, yy, ww, hh; |
| 1961 | m_currentClippingRegion.GetBox( xx, yy, ww, hh ); |
| 1962 | wxDC::DoSetClippingRegion( xx, yy, ww, hh ); |
| 1963 | |
| 1964 | gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); |
| 1965 | gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() ); |
| 1966 | gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); |
| 1967 | gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() ); |
| 1968 | } |
| 1969 | |
| 1970 | void wxWindowDC::DestroyClippingRegion() |
| 1971 | { |
| 1972 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 1973 | |
| 1974 | wxDC::DestroyClippingRegion(); |
| 1975 | |
| 1976 | m_currentClippingRegion.Clear(); |
| 1977 | |
| 1978 | #if USE_PAINT_REGION |
| 1979 | if (!m_paintClippingRegion.IsEmpty()) |
| 1980 | m_currentClippingRegion.Union( m_paintClippingRegion ); |
| 1981 | #endif |
| 1982 | |
| 1983 | if (!m_window) return; |
| 1984 | |
| 1985 | if (m_currentClippingRegion.IsEmpty()) |
| 1986 | { |
| 1987 | gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL ); |
| 1988 | gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL ); |
| 1989 | gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL ); |
| 1990 | gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL ); |
| 1991 | } |
| 1992 | else |
| 1993 | { |
| 1994 | gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); |
| 1995 | gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() ); |
| 1996 | gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); |
| 1997 | gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() ); |
| 1998 | } |
| 1999 | } |
| 2000 | |
| 2001 | void wxWindowDC::Destroy() |
| 2002 | { |
| 2003 | if (m_penGC) wxFreePoolGC( m_penGC ); |
| 2004 | m_penGC = (GdkGC*) NULL; |
| 2005 | if (m_brushGC) wxFreePoolGC( m_brushGC ); |
| 2006 | m_brushGC = (GdkGC*) NULL; |
| 2007 | if (m_textGC) wxFreePoolGC( m_textGC ); |
| 2008 | m_textGC = (GdkGC*) NULL; |
| 2009 | if (m_bgGC) wxFreePoolGC( m_bgGC ); |
| 2010 | m_bgGC = (GdkGC*) NULL; |
| 2011 | } |
| 2012 | |
| 2013 | void wxWindowDC::ComputeScaleAndOrigin() |
| 2014 | { |
| 2015 | /* CMB: copy scale to see if it changes */ |
| 2016 | double origScaleX = m_scaleX; |
| 2017 | double origScaleY = m_scaleY; |
| 2018 | |
| 2019 | wxDC::ComputeScaleAndOrigin(); |
| 2020 | |
| 2021 | /* CMB: if scale has changed call SetPen to recalulate the line width */ |
| 2022 | if ((m_scaleX != origScaleX || m_scaleY != origScaleY) && |
| 2023 | (m_pen.Ok())) |
| 2024 | { |
| 2025 | /* this is a bit artificial, but we need to force wxDC to think |
| 2026 | the pen has changed */ |
| 2027 | wxPen pen = m_pen; |
| 2028 | m_pen = wxNullPen; |
| 2029 | SetPen( pen ); |
| 2030 | } |
| 2031 | } |
| 2032 | |
| 2033 | // Resolution in pixels per logical inch |
| 2034 | wxSize wxWindowDC::GetPPI() const |
| 2035 | { |
| 2036 | return wxSize(100, 100); |
| 2037 | } |
| 2038 | |
| 2039 | int wxWindowDC::GetDepth() const |
| 2040 | { |
| 2041 | wxFAIL_MSG(wxT("not implemented")); |
| 2042 | |
| 2043 | return -1; |
| 2044 | } |
| 2045 | |
| 2046 | #if wxUSE_SPLINES |
| 2047 | // ----------------------------------- spline code ---------------------------------------- |
| 2048 | |
| 2049 | void wx_quadratic_spline(double a1, double b1, double a2, double b2, |
| 2050 | double a3, double b3, double a4, double b4); |
| 2051 | void wx_clear_stack(); |
| 2052 | int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3, |
| 2053 | double *y3, double *x4, double *y4); |
| 2054 | void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, |
| 2055 | double x4, double y4); |
| 2056 | static bool wx_spline_add_point(double x, double y); |
| 2057 | static void wx_spline_draw_point_array(wxDC *dc); |
| 2058 | |
| 2059 | wxList wx_spline_point_list; |
| 2060 | |
| 2061 | #define half(z1, z2) ((z1+z2)/2.0) |
| 2062 | #define THRESHOLD 5 |
| 2063 | |
| 2064 | /* iterative version */ |
| 2065 | |
| 2066 | void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4, |
| 2067 | double b4) |
| 2068 | { |
| 2069 | register double xmid, ymid; |
| 2070 | double x1, y1, x2, y2, x3, y3, x4, y4; |
| 2071 | |
| 2072 | wx_clear_stack(); |
| 2073 | wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4); |
| 2074 | |
| 2075 | while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) { |
| 2076 | xmid = (double)half(x2, x3); |
| 2077 | ymid = (double)half(y2, y3); |
| 2078 | if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD && |
| 2079 | fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) { |
| 2080 | wx_spline_add_point( x1, y1 ); |
| 2081 | wx_spline_add_point( xmid, ymid ); |
| 2082 | } else { |
| 2083 | wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3), |
| 2084 | (double)half(x3, x4), (double)half(y3, y4), x4, y4); |
| 2085 | wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2), |
| 2086 | (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid); |
| 2087 | } |
| 2088 | } |
| 2089 | } |
| 2090 | |
| 2091 | /* utilities used by spline drawing routines */ |
| 2092 | |
| 2093 | typedef struct wx_spline_stack_struct { |
| 2094 | double x1, y1, x2, y2, x3, y3, x4, y4; |
| 2095 | } Stack; |
| 2096 | |
| 2097 | #define SPLINE_STACK_DEPTH 20 |
| 2098 | static Stack wx_spline_stack[SPLINE_STACK_DEPTH]; |
| 2099 | static Stack *wx_stack_top; |
| 2100 | static int wx_stack_count; |
| 2101 | |
| 2102 | void wx_clear_stack() |
| 2103 | { |
| 2104 | wx_stack_top = wx_spline_stack; |
| 2105 | wx_stack_count = 0; |
| 2106 | } |
| 2107 | |
| 2108 | void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) |
| 2109 | { |
| 2110 | wx_stack_top->x1 = x1; |
| 2111 | wx_stack_top->y1 = y1; |
| 2112 | wx_stack_top->x2 = x2; |
| 2113 | wx_stack_top->y2 = y2; |
| 2114 | wx_stack_top->x3 = x3; |
| 2115 | wx_stack_top->y3 = y3; |
| 2116 | wx_stack_top->x4 = x4; |
| 2117 | wx_stack_top->y4 = y4; |
| 2118 | wx_stack_top++; |
| 2119 | wx_stack_count++; |
| 2120 | } |
| 2121 | |
| 2122 | int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, |
| 2123 | double *x3, double *y3, double *x4, double *y4) |
| 2124 | { |
| 2125 | if (wx_stack_count == 0) |
| 2126 | return (0); |
| 2127 | wx_stack_top--; |
| 2128 | wx_stack_count--; |
| 2129 | *x1 = wx_stack_top->x1; |
| 2130 | *y1 = wx_stack_top->y1; |
| 2131 | *x2 = wx_stack_top->x2; |
| 2132 | *y2 = wx_stack_top->y2; |
| 2133 | *x3 = wx_stack_top->x3; |
| 2134 | *y3 = wx_stack_top->y3; |
| 2135 | *x4 = wx_stack_top->x4; |
| 2136 | *y4 = wx_stack_top->y4; |
| 2137 | return (1); |
| 2138 | } |
| 2139 | |
| 2140 | static bool wx_spline_add_point(double x, double y) |
| 2141 | { |
| 2142 | wxPoint *point = new wxPoint ; |
| 2143 | point->x = (int) x; |
| 2144 | point->y = (int) y; |
| 2145 | wx_spline_point_list.Append((wxObject*)point); |
| 2146 | return TRUE; |
| 2147 | } |
| 2148 | |
| 2149 | static void wx_spline_draw_point_array(wxDC *dc) |
| 2150 | { |
| 2151 | dc->DrawLines(&wx_spline_point_list, 0, 0 ); |
| 2152 | wxNode *node = wx_spline_point_list.First(); |
| 2153 | while (node) |
| 2154 | { |
| 2155 | wxPoint *point = (wxPoint *)node->Data(); |
| 2156 | delete point; |
| 2157 | delete node; |
| 2158 | node = wx_spline_point_list.First(); |
| 2159 | } |
| 2160 | } |
| 2161 | |
| 2162 | void wxWindowDC::DoDrawSpline( wxList *points ) |
| 2163 | { |
| 2164 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); |
| 2165 | |
| 2166 | wxPoint *p; |
| 2167 | double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4; |
| 2168 | double x1, y1, x2, y2; |
| 2169 | |
| 2170 | wxNode *node = points->First(); |
| 2171 | p = (wxPoint *)node->Data(); |
| 2172 | |
| 2173 | x1 = p->x; |
| 2174 | y1 = p->y; |
| 2175 | |
| 2176 | node = node->Next(); |
| 2177 | p = (wxPoint *)node->Data(); |
| 2178 | |
| 2179 | x2 = p->x; |
| 2180 | y2 = p->y; |
| 2181 | cx1 = (double)((x1 + x2) / 2); |
| 2182 | cy1 = (double)((y1 + y2) / 2); |
| 2183 | cx2 = (double)((cx1 + x2) / 2); |
| 2184 | cy2 = (double)((cy1 + y2) / 2); |
| 2185 | |
| 2186 | wx_spline_add_point(x1, y1); |
| 2187 | |
| 2188 | while ((node = node->Next()) != NULL) |
| 2189 | { |
| 2190 | p = (wxPoint *)node->Data(); |
| 2191 | x1 = x2; |
| 2192 | y1 = y2; |
| 2193 | x2 = p->x; |
| 2194 | y2 = p->y; |
| 2195 | cx4 = (double)(x1 + x2) / 2; |
| 2196 | cy4 = (double)(y1 + y2) / 2; |
| 2197 | cx3 = (double)(x1 + cx4) / 2; |
| 2198 | cy3 = (double)(y1 + cy4) / 2; |
| 2199 | |
| 2200 | wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4); |
| 2201 | |
| 2202 | cx1 = cx4; |
| 2203 | cy1 = cy4; |
| 2204 | cx2 = (double)(cx1 + x2) / 2; |
| 2205 | cy2 = (double)(cy1 + y2) / 2; |
| 2206 | } |
| 2207 | |
| 2208 | wx_spline_add_point( cx1, cy1 ); |
| 2209 | wx_spline_add_point( x2, y2 ); |
| 2210 | |
| 2211 | wx_spline_draw_point_array( this ); |
| 2212 | } |
| 2213 | |
| 2214 | #endif // wxUSE_SPLINE |
| 2215 | |
| 2216 | //----------------------------------------------------------------------------- |
| 2217 | // wxPaintDC |
| 2218 | //----------------------------------------------------------------------------- |
| 2219 | |
| 2220 | IMPLEMENT_DYNAMIC_CLASS(wxPaintDC,wxWindowDC) |
| 2221 | |
| 2222 | wxPaintDC::wxPaintDC() |
| 2223 | : wxWindowDC() |
| 2224 | { |
| 2225 | } |
| 2226 | |
| 2227 | wxPaintDC::wxPaintDC( wxWindow *win ) |
| 2228 | : wxWindowDC( win ) |
| 2229 | { |
| 2230 | #if USE_PAINT_REGION |
| 2231 | if (!win->m_clipPaintRegion) |
| 2232 | return; |
| 2233 | |
| 2234 | m_paintClippingRegion = win->GetUpdateRegion(); |
| 2235 | GdkRegion *region = m_paintClippingRegion.GetRegion(); |
| 2236 | if ( region ) |
| 2237 | { |
| 2238 | m_currentClippingRegion.Union( m_paintClippingRegion ); |
| 2239 | |
| 2240 | gdk_gc_set_clip_region( m_penGC, region ); |
| 2241 | gdk_gc_set_clip_region( m_brushGC, region ); |
| 2242 | gdk_gc_set_clip_region( m_textGC, region ); |
| 2243 | gdk_gc_set_clip_region( m_bgGC, region ); |
| 2244 | } |
| 2245 | #endif |
| 2246 | } |
| 2247 | |
| 2248 | //----------------------------------------------------------------------------- |
| 2249 | // wxClientDC |
| 2250 | //----------------------------------------------------------------------------- |
| 2251 | |
| 2252 | IMPLEMENT_DYNAMIC_CLASS(wxClientDC,wxWindowDC) |
| 2253 | |
| 2254 | wxClientDC::wxClientDC() |
| 2255 | : wxWindowDC() |
| 2256 | { |
| 2257 | } |
| 2258 | |
| 2259 | wxClientDC::wxClientDC( wxWindow *win ) |
| 2260 | : wxWindowDC( win ) |
| 2261 | { |
| 2262 | } |
| 2263 | |
| 2264 | // ---------------------------------------------------------------------------- |
| 2265 | // wxDCModule |
| 2266 | // ---------------------------------------------------------------------------- |
| 2267 | |
| 2268 | class wxDCModule : public wxModule |
| 2269 | { |
| 2270 | public: |
| 2271 | bool OnInit(); |
| 2272 | void OnExit(); |
| 2273 | |
| 2274 | private: |
| 2275 | DECLARE_DYNAMIC_CLASS(wxDCModule) |
| 2276 | }; |
| 2277 | |
| 2278 | IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule) |
| 2279 | |
| 2280 | bool wxDCModule::OnInit() |
| 2281 | { |
| 2282 | wxInitGCPool(); |
| 2283 | return TRUE; |
| 2284 | } |
| 2285 | |
| 2286 | void wxDCModule::OnExit() |
| 2287 | { |
| 2288 | wxCleanUpGCPool(); |
| 2289 | } |