| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: 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 | #include "wx/dcclient.h" |
| 15 | #include "wx/dcmemory.h" |
| 16 | #include "wx/image.h" |
| 17 | #include <math.h> |
| 18 | |
| 19 | #include "gdk/gdk.h" |
| 20 | #include "gtk/gtk.h" |
| 21 | |
| 22 | //----------------------------------------------------------------------------- |
| 23 | // local data |
| 24 | //----------------------------------------------------------------------------- |
| 25 | |
| 26 | #include "bdiag.xbm" |
| 27 | #include "fdiag.xbm" |
| 28 | #include "cdiag.xbm" |
| 29 | #include "horiz.xbm" |
| 30 | #include "verti.xbm" |
| 31 | #include "cross.xbm" |
| 32 | #define num_hatches 6 |
| 33 | |
| 34 | static GdkPixmap *hatches[num_hatches]; |
| 35 | static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL; |
| 36 | |
| 37 | //----------------------------------------------------------------------------- |
| 38 | // constants |
| 39 | //----------------------------------------------------------------------------- |
| 40 | |
| 41 | #define RAD2DEG 57.2957795131 |
| 42 | |
| 43 | //----------------------------------------------------------------------------- |
| 44 | // temporary implementation of the missing GDK function |
| 45 | //----------------------------------------------------------------------------- |
| 46 | |
| 47 | #include "gdk/gdkprivate.h" |
| 48 | |
| 49 | void gdk_draw_bitmap (GdkDrawable *drawable, |
| 50 | GdkGC *gc, |
| 51 | GdkDrawable *src, |
| 52 | gint xsrc, |
| 53 | gint ysrc, |
| 54 | gint xdest, |
| 55 | gint ydest, |
| 56 | gint width, |
| 57 | gint height) |
| 58 | { |
| 59 | GdkWindowPrivate *drawable_private; |
| 60 | GdkWindowPrivate *src_private; |
| 61 | GdkGCPrivate *gc_private; |
| 62 | |
| 63 | g_return_if_fail (drawable != NULL); |
| 64 | g_return_if_fail (src != NULL); |
| 65 | g_return_if_fail (gc != NULL); |
| 66 | |
| 67 | drawable_private = (GdkWindowPrivate*) drawable; |
| 68 | src_private = (GdkWindowPrivate*) src; |
| 69 | if (drawable_private->destroyed || src_private->destroyed) |
| 70 | return; |
| 71 | |
| 72 | gc_private = (GdkGCPrivate*) gc; |
| 73 | |
| 74 | if (width == -1) width = src_private->width; |
| 75 | if (height == -1) height = src_private->height; |
| 76 | |
| 77 | XCopyPlane( drawable_private->xdisplay, |
| 78 | src_private->xwindow, |
| 79 | drawable_private->xwindow, |
| 80 | gc_private->xgc, |
| 81 | xsrc, ysrc, |
| 82 | width, height, |
| 83 | xdest, ydest, |
| 84 | 1 ); |
| 85 | } |
| 86 | |
| 87 | //----------------------------------------------------------------------------- |
| 88 | // wxWindowDC |
| 89 | //----------------------------------------------------------------------------- |
| 90 | |
| 91 | IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC) |
| 92 | |
| 93 | wxWindowDC::wxWindowDC() |
| 94 | { |
| 95 | m_penGC = (GdkGC *) NULL; |
| 96 | m_brushGC = (GdkGC *) NULL; |
| 97 | m_textGC = (GdkGC *) NULL; |
| 98 | m_bgGC = (GdkGC *) NULL; |
| 99 | m_cmap = (GdkColormap *) NULL; |
| 100 | m_isMemDC = FALSE; |
| 101 | m_owner = (wxWindow *)NULL; |
| 102 | } |
| 103 | |
| 104 | wxWindowDC::wxWindowDC( wxWindow *window ) |
| 105 | { |
| 106 | m_penGC = (GdkGC *) NULL; |
| 107 | m_brushGC = (GdkGC *) NULL; |
| 108 | m_textGC = (GdkGC *) NULL; |
| 109 | m_bgGC = (GdkGC *) NULL; |
| 110 | m_cmap = (GdkColormap *) NULL; |
| 111 | m_owner = (wxWindow *)NULL; |
| 112 | m_isMemDC = FALSE; |
| 113 | |
| 114 | wxASSERT_MSG( window, _T("DC needs a window") ); |
| 115 | |
| 116 | GtkWidget *widget = window->m_wxwindow; |
| 117 | |
| 118 | wxASSERT_MSG( widget, _T("DC needs a widget") ); |
| 119 | |
| 120 | m_window = widget->window; |
| 121 | |
| 122 | /* not realized ? */ |
| 123 | if (!m_window) |
| 124 | { |
| 125 | /* don't report problems */ |
| 126 | m_ok = TRUE; |
| 127 | |
| 128 | return; |
| 129 | } |
| 130 | |
| 131 | if (window->m_wxwindow) |
| 132 | m_cmap = gtk_widget_get_colormap( window->m_wxwindow ); |
| 133 | else |
| 134 | m_cmap = gtk_widget_get_colormap( window->m_widget ); |
| 135 | |
| 136 | SetUpDC(); |
| 137 | |
| 138 | /* this must be done after SetUpDC, bacause SetUpDC calls the |
| 139 | repective SetBrush, SetPen, SetBackground etc functions |
| 140 | to set up the DC. SetBackground call m_owner->SetBackground |
| 141 | and this might not be desired as the standard dc background |
| 142 | is white whereas a window might assume gray to be the |
| 143 | standard (as e.g. wxStatusBar) */ |
| 144 | |
| 145 | m_owner = window; |
| 146 | } |
| 147 | |
| 148 | wxWindowDC::~wxWindowDC() |
| 149 | { |
| 150 | Destroy(); |
| 151 | } |
| 152 | |
| 153 | void wxWindowDC::DoFloodFill( long WXUNUSED(x), long WXUNUSED(y), |
| 154 | const wxColour &WXUNUSED(col), int WXUNUSED(style) ) |
| 155 | { |
| 156 | wxFAIL_MSG( _T("wxWindowDC::DoFloodFill not implemented") ); |
| 157 | } |
| 158 | |
| 159 | bool wxWindowDC::DoGetPixel( long WXUNUSED(x1), long WXUNUSED(y1), wxColour *WXUNUSED(col) ) const |
| 160 | { |
| 161 | wxFAIL_MSG( _T("wxWindowDC::DoGetPixel not implemented") ); |
| 162 | return FALSE; |
| 163 | } |
| 164 | |
| 165 | void wxWindowDC::DoDrawLine( long x1, long y1, long x2, long y2 ) |
| 166 | { |
| 167 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 168 | |
| 169 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 170 | { |
| 171 | if (m_window) |
| 172 | gdk_draw_line( m_window, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) ); |
| 173 | |
| 174 | CalcBoundingBox(x1, y1); |
| 175 | CalcBoundingBox(x2, y2); |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | void wxWindowDC::DoCrossHair( long x, long y ) |
| 180 | { |
| 181 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 182 | |
| 183 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 184 | { |
| 185 | int w = 0; |
| 186 | int h = 0; |
| 187 | GetSize( &w, &h ); |
| 188 | long xx = XLOG2DEV(x); |
| 189 | long yy = YLOG2DEV(y); |
| 190 | if (m_window) |
| 191 | { |
| 192 | gdk_draw_line( m_window, m_penGC, 0, yy, XLOG2DEVREL(w), yy ); |
| 193 | gdk_draw_line( m_window, m_penGC, xx, 0, xx, YLOG2DEVREL(h) ); |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | void wxWindowDC::DoDrawArc( long x1, long y1, long x2, long y2, |
| 199 | long xc, long yc ) |
| 200 | { |
| 201 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 202 | |
| 203 | long xx1 = XLOG2DEV(x1); |
| 204 | long yy1 = YLOG2DEV(y1); |
| 205 | long xx2 = XLOG2DEV(x2); |
| 206 | long yy2 = YLOG2DEV(y2); |
| 207 | long xxc = XLOG2DEV(xc); |
| 208 | long yyc = YLOG2DEV(yc); |
| 209 | double dx = xx1 - xxc; |
| 210 | double dy = yy1 - yyc; |
| 211 | double radius = sqrt(dx*dx+dy*dy); |
| 212 | long r = (long)radius; |
| 213 | double radius1, radius2; |
| 214 | |
| 215 | if (xx1 == xx2 && yy1 == yy2) |
| 216 | { |
| 217 | radius1 = 0.0; |
| 218 | radius2 = 360.0; |
| 219 | } |
| 220 | else |
| 221 | if (radius == 0.0) |
| 222 | { |
| 223 | radius1 = radius2 = 0.0; |
| 224 | } |
| 225 | else |
| 226 | { |
| 227 | radius1 = (xx1 - xxc == 0) ? |
| 228 | (yy1 - yyc < 0) ? 90.0 : -90.0 : |
| 229 | -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG; |
| 230 | radius2 = (xx2 - xxc == 0) ? |
| 231 | (yy2 - yyc < 0) ? 90.0 : -90.0 : |
| 232 | -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG; |
| 233 | } |
| 234 | long alpha1 = long(radius1 * 64.0); |
| 235 | long alpha2 = long((radius2 - radius1) * 64.0); |
| 236 | while (alpha2 <= 0) alpha2 += 360*64; |
| 237 | while (alpha1 > 360*64) alpha1 -= 360*64; |
| 238 | |
| 239 | if (m_window) |
| 240 | { |
| 241 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 242 | gdk_draw_arc( m_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 243 | |
| 244 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 245 | gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); |
| 246 | } |
| 247 | |
| 248 | CalcBoundingBox (x1, y1); |
| 249 | CalcBoundingBox (x2, y2); |
| 250 | } |
| 251 | |
| 252 | void wxWindowDC::DoDrawEllipticArc( long x, long y, long width, long height, double sa, double ea ) |
| 253 | { |
| 254 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 255 | |
| 256 | long xx = XLOG2DEV(x); |
| 257 | long yy = YLOG2DEV(y); |
| 258 | long ww = m_signX * XLOG2DEVREL(width); |
| 259 | long hh = m_signY * YLOG2DEVREL(height); |
| 260 | |
| 261 | // CMB: handle -ve width and/or height |
| 262 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 263 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 264 | |
| 265 | if (m_window) |
| 266 | { |
| 267 | long start = long(sa * 64.0); |
| 268 | long end = long(ea * 64.0); |
| 269 | |
| 270 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 271 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); |
| 272 | |
| 273 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 274 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, start, end ); |
| 275 | } |
| 276 | |
| 277 | CalcBoundingBox (x, y); |
| 278 | CalcBoundingBox (x + width, y + height); |
| 279 | } |
| 280 | |
| 281 | void wxWindowDC::DoDrawPoint( long x, long y ) |
| 282 | { |
| 283 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 284 | |
| 285 | if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window) |
| 286 | gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) ); |
| 287 | |
| 288 | CalcBoundingBox (x, y); |
| 289 | } |
| 290 | |
| 291 | void wxWindowDC::DoDrawLines( int n, wxPoint points[], long xoffset, long yoffset ) |
| 292 | { |
| 293 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 294 | |
| 295 | if (m_pen.GetStyle() == wxTRANSPARENT) return; |
| 296 | if (n <= 0) return; |
| 297 | |
| 298 | CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset ); |
| 299 | |
| 300 | for (int i = 0; i < n-1; i++) |
| 301 | { |
| 302 | long x1 = XLOG2DEV(points[i].x + xoffset); |
| 303 | long x2 = XLOG2DEV(points[i+1].x + xoffset); |
| 304 | long y1 = YLOG2DEV(points[i].y + yoffset); // oh, what a waste |
| 305 | long y2 = YLOG2DEV(points[i+1].y + yoffset); |
| 306 | if (m_window) |
| 307 | gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 ); |
| 308 | |
| 309 | CalcBoundingBox( points[i+1].x + xoffset, points[i+1].y + yoffset ); |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], long xoffset, long yoffset, int WXUNUSED(fillStyle) ) |
| 314 | { |
| 315 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 316 | |
| 317 | if (n <= 0) return; |
| 318 | |
| 319 | GdkPoint *gdkpoints = new GdkPoint[n+1]; |
| 320 | int i; |
| 321 | for (i = 0 ; i < n ; i++) |
| 322 | { |
| 323 | gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset); |
| 324 | gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset); |
| 325 | |
| 326 | CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset ); |
| 327 | } |
| 328 | |
| 329 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 330 | gdk_draw_polygon (m_window, m_brushGC, TRUE, gdkpoints, n); |
| 331 | |
| 332 | // To do: Fillstyle |
| 333 | |
| 334 | if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window) |
| 335 | { |
| 336 | for (i = 0 ; i < n ; i++) |
| 337 | { |
| 338 | gdk_draw_line( m_window, m_penGC, |
| 339 | gdkpoints[i%n].x, |
| 340 | gdkpoints[i%n].y, |
| 341 | gdkpoints[(i+1)%n].x, |
| 342 | gdkpoints[(i+1)%n].y); |
| 343 | } |
| 344 | } |
| 345 | |
| 346 | delete[] gdkpoints; |
| 347 | } |
| 348 | |
| 349 | void wxWindowDC::DoDrawRectangle( long x, long y, long width, long height ) |
| 350 | { |
| 351 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 352 | |
| 353 | long xx = XLOG2DEV(x); |
| 354 | long yy = YLOG2DEV(y); |
| 355 | long ww = m_signX * XLOG2DEVREL(width); |
| 356 | long hh = m_signY * YLOG2DEVREL(height); |
| 357 | |
| 358 | // CMB: draw nothing if transformed w or h is 0 |
| 359 | if (ww == 0 || hh == 0) return; |
| 360 | |
| 361 | // CMB: handle -ve width and/or height |
| 362 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 363 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 364 | |
| 365 | if (m_window) |
| 366 | { |
| 367 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 368 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh ); |
| 369 | |
| 370 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 371 | gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 ); |
| 372 | } |
| 373 | |
| 374 | CalcBoundingBox( x, y ); |
| 375 | CalcBoundingBox( x + width, y + height ); |
| 376 | } |
| 377 | |
| 378 | void wxWindowDC::DoDrawRoundedRectangle( long x, long y, long width, long height, double radius ) |
| 379 | { |
| 380 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 381 | |
| 382 | if (radius < 0.0) radius = - radius * ((width < height) ? width : height); |
| 383 | |
| 384 | long xx = XLOG2DEV(x); |
| 385 | long yy = YLOG2DEV(y); |
| 386 | long ww = m_signX * XLOG2DEVREL(width); |
| 387 | long hh = m_signY * YLOG2DEVREL(height); |
| 388 | long rr = XLOG2DEVREL((long)radius); |
| 389 | |
| 390 | // CMB: handle -ve width and/or height |
| 391 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 392 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 393 | |
| 394 | // CMB: if radius is zero use DrawRectangle() instead to avoid |
| 395 | // X drawing errors with small radii |
| 396 | if (rr == 0) |
| 397 | { |
| 398 | DrawRectangle( x, y, width, height ); |
| 399 | return; |
| 400 | } |
| 401 | |
| 402 | // CMB: draw nothing if transformed w or h is 0 |
| 403 | if (ww == 0 || hh == 0) return; |
| 404 | |
| 405 | // CMB: adjust size if outline is drawn otherwise the result is |
| 406 | // 1 pixel too wide and high |
| 407 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 408 | { |
| 409 | ww--; |
| 410 | hh--; |
| 411 | } |
| 412 | |
| 413 | if (m_window) |
| 414 | { |
| 415 | // CMB: ensure dd is not larger than rectangle otherwise we |
| 416 | // get an hour glass shape |
| 417 | long dd = 2 * rr; |
| 418 | if (dd > ww) dd = ww; |
| 419 | if (dd > hh) dd = hh; |
| 420 | rr = dd / 2; |
| 421 | |
| 422 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 423 | { |
| 424 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); |
| 425 | gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); |
| 426 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 427 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 428 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 429 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 430 | } |
| 431 | |
| 432 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 433 | { |
| 434 | gdk_draw_line( m_window, m_penGC, xx+rr, yy, xx+ww-rr, yy ); |
| 435 | gdk_draw_line( m_window, m_penGC, xx+rr, yy+hh, xx+ww-rr, yy+hh ); |
| 436 | gdk_draw_line( m_window, m_penGC, xx, yy+rr, xx, yy+hh-rr ); |
| 437 | gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr, xx+ww, yy+hh-rr ); |
| 438 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 ); |
| 439 | gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); |
| 440 | gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); |
| 441 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | // this ignores the radius |
| 446 | CalcBoundingBox( x, y ); |
| 447 | CalcBoundingBox( x + width, y + height ); |
| 448 | } |
| 449 | |
| 450 | void wxWindowDC::DoDrawEllipse( long x, long y, long width, long height ) |
| 451 | { |
| 452 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 453 | |
| 454 | long xx = XLOG2DEV(x); |
| 455 | long yy = YLOG2DEV(y); |
| 456 | long ww = m_signX * XLOG2DEVREL(width); |
| 457 | long hh = m_signY * YLOG2DEVREL(height); |
| 458 | |
| 459 | // CMB: handle -ve width and/or height |
| 460 | if (ww < 0) { ww = -ww; xx = xx - ww; } |
| 461 | if (hh < 0) { hh = -hh; yy = yy - hh; } |
| 462 | |
| 463 | if (m_window) |
| 464 | { |
| 465 | if (m_brush.GetStyle() != wxTRANSPARENT) |
| 466 | gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); |
| 467 | |
| 468 | if (m_pen.GetStyle() != wxTRANSPARENT) |
| 469 | gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 ); |
| 470 | } |
| 471 | |
| 472 | CalcBoundingBox( x - width, y - height ); |
| 473 | CalcBoundingBox( x + width, y + height ); |
| 474 | } |
| 475 | |
| 476 | void wxWindowDC::DoDrawIcon( const wxIcon &icon, long x, long y ) |
| 477 | { |
| 478 | // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why |
| 479 | DoDrawBitmap( (const wxBitmap&)icon, x, y, (bool)TRUE ); |
| 480 | } |
| 481 | |
| 482 | void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap, |
| 483 | long x, long y, |
| 484 | bool useMask ) |
| 485 | { |
| 486 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 487 | |
| 488 | wxCHECK_RET( bitmap.Ok(), _T("invalid bitmap") ); |
| 489 | |
| 490 | /* scale/translate size and position */ |
| 491 | |
| 492 | int xx = XLOG2DEV(x); |
| 493 | int yy = YLOG2DEV(y); |
| 494 | |
| 495 | int w = bitmap.GetWidth(); |
| 496 | int h = bitmap.GetHeight(); |
| 497 | |
| 498 | CalcBoundingBox( x, y ); |
| 499 | CalcBoundingBox( x + w, y + h ); |
| 500 | |
| 501 | if (!m_window) return; |
| 502 | |
| 503 | int ww = XLOG2DEVREL(w); |
| 504 | int hh = YLOG2DEVREL(h); |
| 505 | |
| 506 | /* scale bitmap if required */ |
| 507 | |
| 508 | wxBitmap use_bitmap; |
| 509 | |
| 510 | if ((w != ww) || (h != hh)) |
| 511 | { |
| 512 | wxImage image( bitmap ); |
| 513 | image = image.Scale( ww, hh ); |
| 514 | |
| 515 | use_bitmap = image.ConvertToBitmap(); |
| 516 | } |
| 517 | else |
| 518 | { |
| 519 | use_bitmap = bitmap; |
| 520 | } |
| 521 | |
| 522 | /* apply mask if any */ |
| 523 | |
| 524 | GdkBitmap *mask = (GdkBitmap *) NULL; |
| 525 | if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); |
| 526 | |
| 527 | if (useMask && mask) |
| 528 | { |
| 529 | gdk_gc_set_clip_mask( m_penGC, mask ); |
| 530 | gdk_gc_set_clip_origin( m_penGC, xx, yy ); |
| 531 | } |
| 532 | |
| 533 | /* draw XPixmap or XBitmap, depending on what the wxBitmap contains */ |
| 534 | |
| 535 | GdkPixmap *pm = use_bitmap.GetPixmap(); |
| 536 | if (pm) |
| 537 | { |
| 538 | gdk_draw_pixmap( m_window, m_penGC, pm, 0, 0, xx, yy, -1, -1 ); |
| 539 | } |
| 540 | else |
| 541 | { |
| 542 | GdkBitmap *bm = use_bitmap.GetBitmap(); |
| 543 | if (bm) |
| 544 | { |
| 545 | gdk_draw_bitmap( m_window, m_penGC, bm, 0, 0, xx, yy, -1, -1 ); |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | /* remove mask again if any */ |
| 550 | |
| 551 | if (useMask && mask) |
| 552 | { |
| 553 | gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL ); |
| 554 | gdk_gc_set_clip_origin( m_penGC, 0, 0 ); |
| 555 | } |
| 556 | } |
| 557 | |
| 558 | bool wxWindowDC::DoBlit( long xdest, long ydest, long width, long height, |
| 559 | wxDC *source, long xsrc, long ysrc, |
| 560 | int logical_func, bool useMask ) |
| 561 | { |
| 562 | /* this is the nth try to get this utterly useless function to |
| 563 | work. it now completely ignores the scaling or translation |
| 564 | of the source dc, but scales correctly on the target dc and |
| 565 | knows about possible mask information in a memory dc. */ |
| 566 | |
| 567 | wxCHECK_MSG( Ok(), FALSE, _T("invalid window dc") ); |
| 568 | |
| 569 | wxCHECK_MSG( source, FALSE, _T("invalid source dc") ); |
| 570 | |
| 571 | if (!m_window) return FALSE; |
| 572 | |
| 573 | wxClientDC *srcDC = (wxClientDC*)source; |
| 574 | wxMemoryDC *memDC = (wxMemoryDC*)source; |
| 575 | |
| 576 | bool use_bitmap_method = FALSE; |
| 577 | |
| 578 | if (srcDC->m_isMemDC) |
| 579 | { |
| 580 | if (!memDC->m_selected.Ok()) return FALSE; |
| 581 | |
| 582 | /* we use the "XCopyArea" way to copy a memory dc into |
| 583 | y different window if the memory dc BOTH |
| 584 | a) doesn't have any mask or its mask isn't used |
| 585 | b) it is clipped |
| 586 | c) is not 1-bit */ |
| 587 | |
| 588 | if (useMask && (memDC->m_selected.GetMask())) |
| 589 | { |
| 590 | /* we HAVE TO use the direct way for memory dcs |
| 591 | that have mask since the XCopyArea doesn't know |
| 592 | about masks */ |
| 593 | use_bitmap_method = TRUE; |
| 594 | } |
| 595 | else if (memDC->m_selected.GetDepth() == 1) |
| 596 | { |
| 597 | /* we HAVE TO use the direct way for memory dcs |
| 598 | that are bitmaps because XCopyArea doesn't cope |
| 599 | with different bit depths */ |
| 600 | use_bitmap_method = TRUE; |
| 601 | } |
| 602 | else if ((xsrc == 0) && (ysrc == 0) && |
| 603 | (width == memDC->m_selected.GetWidth()) && |
| 604 | (height == memDC->m_selected.GetHeight())) |
| 605 | { |
| 606 | /* we SHOULD use the direct way if all of the bitmap |
| 607 | in the memory dc is copied in which case XCopyArea |
| 608 | wouldn't be able able to boost performace by reducing |
| 609 | the area to be scaled */ |
| 610 | use_bitmap_method = TRUE; |
| 611 | } |
| 612 | else |
| 613 | { |
| 614 | use_bitmap_method = FALSE; |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | CalcBoundingBox( xdest, ydest ); |
| 619 | CalcBoundingBox( xdest + width, ydest + height ); |
| 620 | |
| 621 | int old_logical_func = m_logicalFunction; |
| 622 | SetLogicalFunction( logical_func ); |
| 623 | |
| 624 | if (use_bitmap_method) |
| 625 | { |
| 626 | /* scale/translate bitmap size */ |
| 627 | |
| 628 | long bm_width = memDC->m_selected.GetWidth(); |
| 629 | long bm_height = memDC->m_selected.GetHeight(); |
| 630 | |
| 631 | long bm_ww = XLOG2DEVREL( bm_width ); |
| 632 | long bm_hh = YLOG2DEVREL( bm_height ); |
| 633 | |
| 634 | /* scale bitmap if required */ |
| 635 | |
| 636 | wxBitmap use_bitmap; |
| 637 | |
| 638 | if ((bm_width != bm_ww) || (bm_height != bm_hh)) |
| 639 | { |
| 640 | wxImage image( memDC->m_selected ); |
| 641 | image = image.Scale( bm_ww, bm_hh ); |
| 642 | |
| 643 | use_bitmap = image.ConvertToBitmap(); |
| 644 | } |
| 645 | else |
| 646 | { |
| 647 | use_bitmap = memDC->m_selected; |
| 648 | } |
| 649 | |
| 650 | /* scale/translate size and position */ |
| 651 | |
| 652 | long xx = XLOG2DEV(xdest); |
| 653 | long yy = YLOG2DEV(ydest); |
| 654 | |
| 655 | long ww = XLOG2DEVREL(width); |
| 656 | long hh = YLOG2DEVREL(height); |
| 657 | |
| 658 | /* apply mask if any */ |
| 659 | |
| 660 | GdkBitmap *mask = (GdkBitmap *) NULL; |
| 661 | if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); |
| 662 | |
| 663 | if (useMask && mask) |
| 664 | { |
| 665 | gdk_gc_set_clip_mask( m_penGC, mask ); |
| 666 | gdk_gc_set_clip_origin( m_penGC, xx, yy ); |
| 667 | } |
| 668 | |
| 669 | /* draw XPixmap or XBitmap, depending on what the wxBitmap contains */ |
| 670 | |
| 671 | GdkPixmap *pm = use_bitmap.GetPixmap(); |
| 672 | if (pm) |
| 673 | { |
| 674 | gdk_draw_pixmap( m_window, m_penGC, pm, xsrc, ysrc, xx, yy, ww, hh ); |
| 675 | } |
| 676 | else |
| 677 | { |
| 678 | GdkBitmap *bm = use_bitmap.GetBitmap(); |
| 679 | if (bm) |
| 680 | { |
| 681 | /* we use the textGC here because blitting a bitmap is done |
| 682 | using the current text colour */ |
| 683 | gdk_draw_bitmap( m_window, m_textGC, bm, xsrc, ysrc, xx, yy, ww, hh ); |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | /* remove mask again if any */ |
| 688 | |
| 689 | if (useMask && mask) |
| 690 | { |
| 691 | gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL ); |
| 692 | gdk_gc_set_clip_origin( m_penGC, 0, 0 ); |
| 693 | } |
| 694 | } |
| 695 | else /* use_bitmap_method */ |
| 696 | { |
| 697 | /* scale/translate size and position */ |
| 698 | |
| 699 | long xx = XLOG2DEV(xdest); |
| 700 | long yy = YLOG2DEV(ydest); |
| 701 | |
| 702 | long ww = XLOG2DEVREL(width); |
| 703 | long hh = YLOG2DEVREL(height); |
| 704 | |
| 705 | if ((width != ww) || (height != hh)) |
| 706 | { |
| 707 | /* draw source window into a bitmap as we cannot scale |
| 708 | a window in contrast to a bitmap. this would actually |
| 709 | work with memory dcs as well, but we'd lose the mask |
| 710 | information and waste one step in this process since |
| 711 | a memory already has a bitmap. all this is slightly |
| 712 | inefficient as we could take an XImage directly from |
| 713 | an X window, but we'd then also have to care that |
| 714 | the window is not outside the screen (in which case |
| 715 | we'd get a BadMatch or what not). |
| 716 | Is a double XGetImage and combined XGetPixel and |
| 717 | XPutPixel really faster? I'm not sure. look at wxXt |
| 718 | for a different implementation of the same problem. */ |
| 719 | |
| 720 | wxBitmap bitmap( width, height ); |
| 721 | gdk_window_copy_area( bitmap.GetPixmap(), m_penGC, 0, 0, |
| 722 | srcDC->GetWindow(), |
| 723 | xsrc, ysrc, width, height ); |
| 724 | |
| 725 | /* scale image */ |
| 726 | |
| 727 | wxImage image( bitmap ); |
| 728 | image = image.Scale( ww, hh ); |
| 729 | |
| 730 | /* convert to bitmap */ |
| 731 | |
| 732 | bitmap = image.ConvertToBitmap(); |
| 733 | |
| 734 | /* draw scaled bitmap */ |
| 735 | |
| 736 | gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 ); |
| 737 | |
| 738 | } |
| 739 | else |
| 740 | { |
| 741 | /* no scaling and not a memory dc with a mask either */ |
| 742 | |
| 743 | gdk_window_copy_area( m_window, m_penGC, xx, yy, |
| 744 | srcDC->GetWindow(), |
| 745 | xsrc, ysrc, width, height ); |
| 746 | } |
| 747 | } |
| 748 | |
| 749 | SetLogicalFunction( old_logical_func ); |
| 750 | return TRUE; |
| 751 | } |
| 752 | |
| 753 | void wxWindowDC::DoDrawText( const wxString &text, long x, long y ) |
| 754 | { |
| 755 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 756 | |
| 757 | if (!m_window) return; |
| 758 | |
| 759 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 760 | |
| 761 | x = XLOG2DEV(x); |
| 762 | y = YLOG2DEV(y); |
| 763 | |
| 764 | /* CMB 21/5/98: draw text background if mode is wxSOLID */ |
| 765 | if (m_backgroundMode == wxSOLID) |
| 766 | { |
| 767 | long width = gdk_string_width( font, text.mbc_str() ); |
| 768 | long height = font->ascent + font->descent; |
| 769 | gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() ); |
| 770 | gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height ); |
| 771 | gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); |
| 772 | } |
| 773 | gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() ); |
| 774 | |
| 775 | /* CMB 17/7/98: simple underline: ignores scaling and underlying |
| 776 | X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS |
| 777 | properties (see wxXt implementation) */ |
| 778 | if (m_font.GetUnderlined()) |
| 779 | { |
| 780 | long width = gdk_string_width( font, text.mbc_str() ); |
| 781 | long ul_y = y + font->ascent; |
| 782 | if (font->descent > 0) ul_y++; |
| 783 | gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y); |
| 784 | } |
| 785 | |
| 786 | long w, h; |
| 787 | GetTextExtent (text, &w, &h); |
| 788 | CalcBoundingBox (x + w, y + h); |
| 789 | CalcBoundingBox (x, y); |
| 790 | } |
| 791 | |
| 792 | void wxWindowDC::GetTextExtent( const wxString &string, long *width, long *height, |
| 793 | long *descent, long *externalLeading, |
| 794 | wxFont *theFont ) const |
| 795 | { |
| 796 | wxFont fontToUse = m_font; |
| 797 | if (theFont) fontToUse = *theFont; |
| 798 | |
| 799 | GdkFont *font = fontToUse.GetInternalFont( m_scaleY ); |
| 800 | if (width) (*width) = long(gdk_string_width( font, string.mbc_str() ) / m_scaleX); |
| 801 | if (height) (*height) = long((font->ascent + font->descent) / m_scaleY); |
| 802 | if (descent) (*descent) = long(font->descent / m_scaleY); |
| 803 | if (externalLeading) (*externalLeading) = 0; // ?? |
| 804 | } |
| 805 | |
| 806 | long wxWindowDC::GetCharWidth() const |
| 807 | { |
| 808 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 809 | return long(gdk_string_width( font, "H" ) / m_scaleX); |
| 810 | } |
| 811 | |
| 812 | long wxWindowDC::GetCharHeight() const |
| 813 | { |
| 814 | GdkFont *font = m_font.GetInternalFont( m_scaleY ); |
| 815 | return long((font->ascent + font->descent) / m_scaleY); |
| 816 | } |
| 817 | |
| 818 | void wxWindowDC::Clear() |
| 819 | { |
| 820 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 821 | |
| 822 | if (!m_window) return; |
| 823 | |
| 824 | /* - we either are a memory dc or have a window as the |
| 825 | owner. anything else shouldn't happen. |
| 826 | - we don't use gdk_window_clear() as we don't set |
| 827 | the window's background colour anymore. it is too |
| 828 | much pain to keep the DC's and the window's back- |
| 829 | ground colour in synch. */ |
| 830 | |
| 831 | if (m_owner) |
| 832 | { |
| 833 | int width,height; |
| 834 | m_owner->GetSize( &width, &height ); |
| 835 | gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height ); |
| 836 | return; |
| 837 | } |
| 838 | |
| 839 | if (m_isMemDC) |
| 840 | { |
| 841 | int width,height; |
| 842 | GetSize( &width, &height ); |
| 843 | gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height ); |
| 844 | return; |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | void wxWindowDC::SetFont( const wxFont &font ) |
| 849 | { |
| 850 | m_font = font; |
| 851 | } |
| 852 | |
| 853 | void wxWindowDC::SetPen( const wxPen &pen ) |
| 854 | { |
| 855 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 856 | |
| 857 | if (m_pen == pen) return; |
| 858 | |
| 859 | m_pen = pen; |
| 860 | |
| 861 | if (!m_pen.Ok()) return; |
| 862 | |
| 863 | if (!m_window) return; |
| 864 | |
| 865 | gint width = m_pen.GetWidth(); |
| 866 | // CMB: if width is non-zero scale it with the dc |
| 867 | if (width <= 0) |
| 868 | { |
| 869 | width = 1; |
| 870 | } |
| 871 | else |
| 872 | { |
| 873 | // X doesn't allow different width in x and y and so we take |
| 874 | // the average |
| 875 | double w = 0.5 + (abs(XLOG2DEVREL(width)) + abs(YLOG2DEVREL(width))) / 2.0; |
| 876 | width = (int)w; |
| 877 | } |
| 878 | |
| 879 | GdkLineStyle lineStyle = GDK_LINE_SOLID; |
| 880 | switch (m_pen.GetStyle()) |
| 881 | { |
| 882 | case wxSOLID: { lineStyle = GDK_LINE_SOLID; break; } |
| 883 | case wxDOT: { lineStyle = GDK_LINE_ON_OFF_DASH; break; } |
| 884 | case wxLONG_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; break; } |
| 885 | case wxSHORT_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; break; } |
| 886 | case wxDOT_DASH: { lineStyle = GDK_LINE_DOUBLE_DASH; break; } |
| 887 | } |
| 888 | |
| 889 | GdkCapStyle capStyle = GDK_CAP_ROUND; |
| 890 | switch (m_pen.GetCap()) |
| 891 | { |
| 892 | case wxCAP_ROUND: { capStyle = (width <= 1) ? GDK_CAP_NOT_LAST : GDK_CAP_ROUND; break; } |
| 893 | case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; } |
| 894 | case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; } |
| 895 | } |
| 896 | |
| 897 | GdkJoinStyle joinStyle = GDK_JOIN_ROUND; |
| 898 | switch (m_pen.GetJoin()) |
| 899 | { |
| 900 | case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; } |
| 901 | case wxJOIN_ROUND: { joinStyle = GDK_JOIN_ROUND; break; } |
| 902 | case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; } |
| 903 | } |
| 904 | |
| 905 | gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle ); |
| 906 | |
| 907 | m_pen.GetColour().CalcPixel( m_cmap ); |
| 908 | gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() ); |
| 909 | } |
| 910 | |
| 911 | void wxWindowDC::SetBrush( const wxBrush &brush ) |
| 912 | { |
| 913 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 914 | |
| 915 | if (m_brush == brush) return; |
| 916 | |
| 917 | m_brush = brush; |
| 918 | |
| 919 | if (!m_brush.Ok()) return; |
| 920 | |
| 921 | if (!m_window) return; |
| 922 | |
| 923 | m_brush.GetColour().CalcPixel( m_cmap ); |
| 924 | gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() ); |
| 925 | |
| 926 | GdkFill fillStyle = GDK_SOLID; |
| 927 | switch (m_brush.GetStyle()) |
| 928 | { |
| 929 | case wxSOLID: |
| 930 | case wxTRANSPARENT: |
| 931 | break; |
| 932 | default: |
| 933 | fillStyle = GDK_STIPPLED; |
| 934 | } |
| 935 | |
| 936 | gdk_gc_set_fill( m_brushGC, fillStyle ); |
| 937 | |
| 938 | if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->Ok())) |
| 939 | { |
| 940 | if (m_brush.GetStipple()->GetPixmap()) |
| 941 | gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() ); |
| 942 | else |
| 943 | gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetBitmap() ); |
| 944 | } |
| 945 | |
| 946 | if (IS_HATCH(m_brush.GetStyle())) |
| 947 | { |
| 948 | int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH; |
| 949 | gdk_gc_set_stipple( m_brushGC, hatches[num] ); |
| 950 | } |
| 951 | } |
| 952 | |
| 953 | void wxWindowDC::SetBackground( const wxBrush &brush ) |
| 954 | { |
| 955 | /* CMB 21/7/98: Added SetBackground. Sets background brush |
| 956 | * for Clear() and bg colour for shapes filled with cross-hatch brush */ |
| 957 | |
| 958 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 959 | |
| 960 | if (m_backgroundBrush == brush) return; |
| 961 | |
| 962 | m_backgroundBrush = brush; |
| 963 | |
| 964 | if (!m_backgroundBrush.Ok()) return; |
| 965 | |
| 966 | if (!m_window) return; |
| 967 | |
| 968 | m_backgroundBrush.GetColour().CalcPixel( m_cmap ); |
| 969 | gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() ); |
| 970 | gdk_gc_set_background( m_penGC, m_backgroundBrush.GetColour().GetColor() ); |
| 971 | gdk_gc_set_background( m_bgGC, m_backgroundBrush.GetColour().GetColor() ); |
| 972 | gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() ); |
| 973 | |
| 974 | GdkFill fillStyle = GDK_SOLID; |
| 975 | switch (m_backgroundBrush.GetStyle()) |
| 976 | { |
| 977 | case wxSOLID: |
| 978 | case wxTRANSPARENT: |
| 979 | break; |
| 980 | default: |
| 981 | fillStyle = GDK_STIPPLED; |
| 982 | } |
| 983 | |
| 984 | gdk_gc_set_fill( m_bgGC, fillStyle ); |
| 985 | |
| 986 | if (m_backgroundBrush.GetStyle() == wxSTIPPLE) |
| 987 | { |
| 988 | gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() ); |
| 989 | } |
| 990 | |
| 991 | if (IS_HATCH(m_backgroundBrush.GetStyle())) |
| 992 | { |
| 993 | int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH; |
| 994 | gdk_gc_set_stipple( m_bgGC, hatches[num] ); |
| 995 | } |
| 996 | } |
| 997 | |
| 998 | void wxWindowDC::SetLogicalFunction( int function ) |
| 999 | { |
| 1000 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1001 | |
| 1002 | if (m_logicalFunction == function) return; |
| 1003 | |
| 1004 | GdkFunction mode = GDK_COPY; |
| 1005 | switch (function) |
| 1006 | { |
| 1007 | case wxXOR: mode = GDK_XOR; break; |
| 1008 | case wxINVERT: mode = GDK_INVERT; break; |
| 1009 | #if (GTK_MINOR_VERSION > 0) |
| 1010 | case wxOR_REVERSE: mode = GDK_OR_REVERSE; break; |
| 1011 | case wxAND_REVERSE: mode = GDK_AND_REVERSE; break; |
| 1012 | case wxCLEAR: mode = GDK_CLEAR; break; |
| 1013 | case wxSET: mode = GDK_SET; break; |
| 1014 | case wxOR_INVERT: mode = GDK_OR_INVERT; break; |
| 1015 | case wxSRC_AND: |
| 1016 | case wxAND: mode = GDK_AND; break; |
| 1017 | case wxSRC_OR: |
| 1018 | case wxOR: mode = GDK_OR; break; |
| 1019 | case wxEQUIV: mode = GDK_EQUIV; break; |
| 1020 | case wxNAND: mode = GDK_NAND; break; |
| 1021 | case wxAND_INVERT: mode = GDK_AND_INVERT; break; |
| 1022 | case wxCOPY: mode = GDK_COPY; break; |
| 1023 | case wxNO_OP: mode = GDK_NOOP; break; |
| 1024 | case wxSRC_INVERT: mode = GDK_COPY_INVERT; break; |
| 1025 | #endif |
| 1026 | default: |
| 1027 | { |
| 1028 | wxFAIL_MSG( _T("unsupported logical function") ); |
| 1029 | break; |
| 1030 | } |
| 1031 | } |
| 1032 | |
| 1033 | m_logicalFunction = function; |
| 1034 | |
| 1035 | if (!m_window) return; |
| 1036 | |
| 1037 | gdk_gc_set_function( m_penGC, mode ); |
| 1038 | gdk_gc_set_function( m_brushGC, mode ); |
| 1039 | gdk_gc_set_function( m_textGC, mode ); |
| 1040 | } |
| 1041 | |
| 1042 | void wxWindowDC::SetTextForeground( const wxColour &col ) |
| 1043 | { |
| 1044 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1045 | |
| 1046 | if (m_textForegroundColour == col) return; |
| 1047 | |
| 1048 | m_textForegroundColour = col; |
| 1049 | if (!m_textForegroundColour.Ok()) return; |
| 1050 | |
| 1051 | if (!m_window) return; |
| 1052 | |
| 1053 | m_textForegroundColour.CalcPixel( m_cmap ); |
| 1054 | gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); |
| 1055 | } |
| 1056 | |
| 1057 | void wxWindowDC::SetTextBackground( const wxColour &col ) |
| 1058 | { |
| 1059 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1060 | |
| 1061 | if (m_textBackgroundColour == col) return; |
| 1062 | |
| 1063 | m_textBackgroundColour = col; |
| 1064 | if (!m_textBackgroundColour.Ok()) return; |
| 1065 | |
| 1066 | if (!m_window) return; |
| 1067 | |
| 1068 | m_textBackgroundColour.CalcPixel( m_cmap ); |
| 1069 | gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() ); |
| 1070 | } |
| 1071 | |
| 1072 | void wxWindowDC::SetBackgroundMode( int mode ) |
| 1073 | { |
| 1074 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1075 | |
| 1076 | m_backgroundMode = mode; |
| 1077 | |
| 1078 | if (!m_window) return; |
| 1079 | |
| 1080 | // CMB 21/7/98: fill style of cross-hatch brushes is affected by |
| 1081 | // transparent/solid background mode |
| 1082 | |
| 1083 | if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT) |
| 1084 | { |
| 1085 | gdk_gc_set_fill( m_brushGC, |
| 1086 | (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED); |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | void wxWindowDC::SetPalette( const wxPalette& WXUNUSED(palette) ) |
| 1091 | { |
| 1092 | wxFAIL_MSG( _T("wxWindowDC::SetPalette not implemented") ); |
| 1093 | } |
| 1094 | |
| 1095 | void wxWindowDC::DoSetClippingRegion( long x, long y, long width, long height ) |
| 1096 | { |
| 1097 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1098 | |
| 1099 | wxDC::DoSetClippingRegion( x, y, width, height ); |
| 1100 | |
| 1101 | if (!m_window) return; |
| 1102 | |
| 1103 | GdkRectangle rect; |
| 1104 | rect.x = XLOG2DEV(x); |
| 1105 | rect.y = YLOG2DEV(y); |
| 1106 | rect.width = XLOG2DEVREL(width); |
| 1107 | rect.height = YLOG2DEVREL(height); |
| 1108 | gdk_gc_set_clip_rectangle( m_penGC, &rect ); |
| 1109 | gdk_gc_set_clip_rectangle( m_brushGC, &rect ); |
| 1110 | gdk_gc_set_clip_rectangle( m_textGC, &rect ); |
| 1111 | gdk_gc_set_clip_rectangle( m_bgGC, &rect ); |
| 1112 | } |
| 1113 | |
| 1114 | void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion ®ion ) |
| 1115 | { |
| 1116 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1117 | |
| 1118 | if (region.Empty()) |
| 1119 | { |
| 1120 | DestroyClippingRegion(); |
| 1121 | return; |
| 1122 | } |
| 1123 | |
| 1124 | if (!m_window) return; |
| 1125 | |
| 1126 | gdk_gc_set_clip_region( m_penGC, region.GetRegion() ); |
| 1127 | gdk_gc_set_clip_region( m_brushGC, region.GetRegion() ); |
| 1128 | gdk_gc_set_clip_region( m_textGC, region.GetRegion() ); |
| 1129 | gdk_gc_set_clip_region( m_bgGC, region.GetRegion() ); |
| 1130 | } |
| 1131 | |
| 1132 | void wxWindowDC::DestroyClippingRegion() |
| 1133 | { |
| 1134 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1135 | |
| 1136 | wxDC::DestroyClippingRegion(); |
| 1137 | |
| 1138 | if (!m_window) return; |
| 1139 | |
| 1140 | gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL ); |
| 1141 | gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL ); |
| 1142 | gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL ); |
| 1143 | gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL ); |
| 1144 | } |
| 1145 | |
| 1146 | void wxWindowDC::SetUpDC() |
| 1147 | { |
| 1148 | Destroy(); |
| 1149 | m_ok = TRUE; |
| 1150 | m_logicalFunction = wxCOPY; |
| 1151 | m_penGC = gdk_gc_new( m_window ); |
| 1152 | m_brushGC = gdk_gc_new( m_window ); |
| 1153 | m_textGC = gdk_gc_new( m_window ); |
| 1154 | m_bgGC = gdk_gc_new( m_window ); |
| 1155 | |
| 1156 | wxColour tmp_col( m_textForegroundColour ); |
| 1157 | m_textForegroundColour = wxNullColour; |
| 1158 | SetTextForeground( tmp_col ); |
| 1159 | tmp_col = m_textBackgroundColour; |
| 1160 | m_textBackgroundColour = wxNullColour; |
| 1161 | SetTextBackground( tmp_col ); |
| 1162 | |
| 1163 | wxPen tmp_pen( m_pen ); |
| 1164 | m_pen = wxNullPen; |
| 1165 | SetPen( tmp_pen ); |
| 1166 | |
| 1167 | wxFont tmp_font( m_font ); |
| 1168 | m_font = wxNullFont; |
| 1169 | SetFont( tmp_font ); |
| 1170 | |
| 1171 | wxBrush tmp_brush( m_brush ); |
| 1172 | m_brush = wxNullBrush; |
| 1173 | SetBrush( tmp_brush ); |
| 1174 | |
| 1175 | /* |
| 1176 | tmp_brush = m_backgroundBrush; |
| 1177 | m_backgroundBrush = wxNullBrush; |
| 1178 | SetBackground( tmp_brush ); |
| 1179 | */ |
| 1180 | tmp_brush = m_backgroundBrush; |
| 1181 | m_backgroundBrush = wxNullBrush; |
| 1182 | SetBackground( *wxWHITE_BRUSH ); |
| 1183 | m_backgroundBrush = tmp_brush; |
| 1184 | |
| 1185 | if (!hatch_bitmap) |
| 1186 | { |
| 1187 | hatch_bitmap = hatches; |
| 1188 | hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height ); |
| 1189 | hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height ); |
| 1190 | hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height ); |
| 1191 | hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height ); |
| 1192 | hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height ); |
| 1193 | hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height ); |
| 1194 | } |
| 1195 | } |
| 1196 | |
| 1197 | void wxWindowDC::Destroy() |
| 1198 | { |
| 1199 | if (m_penGC) gdk_gc_unref( m_penGC ); |
| 1200 | m_penGC = (GdkGC*) NULL; |
| 1201 | if (m_brushGC) gdk_gc_unref( m_brushGC ); |
| 1202 | m_brushGC = (GdkGC*) NULL; |
| 1203 | if (m_textGC) gdk_gc_unref( m_textGC ); |
| 1204 | m_textGC = (GdkGC*) NULL; |
| 1205 | if (m_bgGC) gdk_gc_unref( m_bgGC ); |
| 1206 | m_bgGC = (GdkGC*) NULL; |
| 1207 | } |
| 1208 | |
| 1209 | void wxWindowDC::ComputeScaleAndOrigin() |
| 1210 | { |
| 1211 | /* CMB: copy scale to see if it changes */ |
| 1212 | double origScaleX = m_scaleX; |
| 1213 | double origScaleY = m_scaleY; |
| 1214 | |
| 1215 | wxDC::ComputeScaleAndOrigin(); |
| 1216 | |
| 1217 | /* CMB: if scale has changed call SetPen to recalulate the line width */ |
| 1218 | if ((m_scaleX != origScaleX || m_scaleY != origScaleY) && |
| 1219 | (m_pen.Ok())) |
| 1220 | { |
| 1221 | /* this is a bit artificial, but we need to force wxDC to think |
| 1222 | the pen has changed */ |
| 1223 | wxPen pen = m_pen; |
| 1224 | m_pen = wxNullPen; |
| 1225 | SetPen( pen ); |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | // Resolution in pixels per logical inch |
| 1230 | wxSize wxWindowDC::GetPPI() const |
| 1231 | { |
| 1232 | return wxSize(100, 100); |
| 1233 | } |
| 1234 | |
| 1235 | int wxWindowDC::GetDepth() const |
| 1236 | { |
| 1237 | wxFAIL_MSG(_T("not implemented")); |
| 1238 | |
| 1239 | return -1; |
| 1240 | } |
| 1241 | |
| 1242 | #if wxUSE_SPLINES |
| 1243 | // ----------------------------------- spline code ---------------------------------------- |
| 1244 | |
| 1245 | void wx_quadratic_spline(double a1, double b1, double a2, double b2, |
| 1246 | double a3, double b3, double a4, double b4); |
| 1247 | void wx_clear_stack(); |
| 1248 | int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3, |
| 1249 | double *y3, double *x4, double *y4); |
| 1250 | void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, |
| 1251 | double x4, double y4); |
| 1252 | static bool wx_spline_add_point(double x, double y); |
| 1253 | static void wx_spline_draw_point_array(wxDC *dc); |
| 1254 | |
| 1255 | wxList wx_spline_point_list; |
| 1256 | |
| 1257 | #define half(z1, z2) ((z1+z2)/2.0) |
| 1258 | #define THRESHOLD 5 |
| 1259 | |
| 1260 | /* iterative version */ |
| 1261 | |
| 1262 | void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4, |
| 1263 | double b4) |
| 1264 | { |
| 1265 | register double xmid, ymid; |
| 1266 | double x1, y1, x2, y2, x3, y3, x4, y4; |
| 1267 | |
| 1268 | wx_clear_stack(); |
| 1269 | wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4); |
| 1270 | |
| 1271 | while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) { |
| 1272 | xmid = (double)half(x2, x3); |
| 1273 | ymid = (double)half(y2, y3); |
| 1274 | if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD && |
| 1275 | fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) { |
| 1276 | wx_spline_add_point( x1, y1 ); |
| 1277 | wx_spline_add_point( xmid, ymid ); |
| 1278 | } else { |
| 1279 | wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3), |
| 1280 | (double)half(x3, x4), (double)half(y3, y4), x4, y4); |
| 1281 | wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2), |
| 1282 | (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid); |
| 1283 | } |
| 1284 | } |
| 1285 | } |
| 1286 | |
| 1287 | /* utilities used by spline drawing routines */ |
| 1288 | |
| 1289 | typedef struct wx_spline_stack_struct { |
| 1290 | double x1, y1, x2, y2, x3, y3, x4, y4; |
| 1291 | } Stack; |
| 1292 | |
| 1293 | #define SPLINE_STACK_DEPTH 20 |
| 1294 | static Stack wx_spline_stack[SPLINE_STACK_DEPTH]; |
| 1295 | static Stack *wx_stack_top; |
| 1296 | static int wx_stack_count; |
| 1297 | |
| 1298 | void wx_clear_stack() |
| 1299 | { |
| 1300 | wx_stack_top = wx_spline_stack; |
| 1301 | wx_stack_count = 0; |
| 1302 | } |
| 1303 | |
| 1304 | void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) |
| 1305 | { |
| 1306 | wx_stack_top->x1 = x1; |
| 1307 | wx_stack_top->y1 = y1; |
| 1308 | wx_stack_top->x2 = x2; |
| 1309 | wx_stack_top->y2 = y2; |
| 1310 | wx_stack_top->x3 = x3; |
| 1311 | wx_stack_top->y3 = y3; |
| 1312 | wx_stack_top->x4 = x4; |
| 1313 | wx_stack_top->y4 = y4; |
| 1314 | wx_stack_top++; |
| 1315 | wx_stack_count++; |
| 1316 | } |
| 1317 | |
| 1318 | int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, |
| 1319 | double *x3, double *y3, double *x4, double *y4) |
| 1320 | { |
| 1321 | if (wx_stack_count == 0) |
| 1322 | return (0); |
| 1323 | wx_stack_top--; |
| 1324 | wx_stack_count--; |
| 1325 | *x1 = wx_stack_top->x1; |
| 1326 | *y1 = wx_stack_top->y1; |
| 1327 | *x2 = wx_stack_top->x2; |
| 1328 | *y2 = wx_stack_top->y2; |
| 1329 | *x3 = wx_stack_top->x3; |
| 1330 | *y3 = wx_stack_top->y3; |
| 1331 | *x4 = wx_stack_top->x4; |
| 1332 | *y4 = wx_stack_top->y4; |
| 1333 | return (1); |
| 1334 | } |
| 1335 | |
| 1336 | static bool wx_spline_add_point(double x, double y) |
| 1337 | { |
| 1338 | wxPoint *point = new wxPoint ; |
| 1339 | point->x = (int) x; |
| 1340 | point->y = (int) y; |
| 1341 | wx_spline_point_list.Append((wxObject*)point); |
| 1342 | return TRUE; |
| 1343 | } |
| 1344 | |
| 1345 | static void wx_spline_draw_point_array(wxDC *dc) |
| 1346 | { |
| 1347 | dc->DrawLines(&wx_spline_point_list, 0, 0 ); |
| 1348 | wxNode *node = wx_spline_point_list.First(); |
| 1349 | while (node) |
| 1350 | { |
| 1351 | wxPoint *point = (wxPoint *)node->Data(); |
| 1352 | delete point; |
| 1353 | delete node; |
| 1354 | node = wx_spline_point_list.First(); |
| 1355 | } |
| 1356 | } |
| 1357 | |
| 1358 | void wxWindowDC::DoDrawSpline( wxList *points ) |
| 1359 | { |
| 1360 | wxCHECK_RET( Ok(), _T("invalid window dc") ); |
| 1361 | |
| 1362 | wxPoint *p; |
| 1363 | double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4; |
| 1364 | double x1, y1, x2, y2; |
| 1365 | |
| 1366 | wxNode *node = points->First(); |
| 1367 | p = (wxPoint *)node->Data(); |
| 1368 | |
| 1369 | x1 = p->x; |
| 1370 | y1 = p->y; |
| 1371 | |
| 1372 | node = node->Next(); |
| 1373 | p = (wxPoint *)node->Data(); |
| 1374 | |
| 1375 | x2 = p->x; |
| 1376 | y2 = p->y; |
| 1377 | cx1 = (double)((x1 + x2) / 2); |
| 1378 | cy1 = (double)((y1 + y2) / 2); |
| 1379 | cx2 = (double)((cx1 + x2) / 2); |
| 1380 | cy2 = (double)((cy1 + y2) / 2); |
| 1381 | |
| 1382 | wx_spline_add_point(x1, y1); |
| 1383 | |
| 1384 | while ((node = node->Next()) != NULL) |
| 1385 | { |
| 1386 | p = (wxPoint *)node->Data(); |
| 1387 | x1 = x2; |
| 1388 | y1 = y2; |
| 1389 | x2 = p->x; |
| 1390 | y2 = p->y; |
| 1391 | cx4 = (double)(x1 + x2) / 2; |
| 1392 | cy4 = (double)(y1 + y2) / 2; |
| 1393 | cx3 = (double)(x1 + cx4) / 2; |
| 1394 | cy3 = (double)(y1 + cy4) / 2; |
| 1395 | |
| 1396 | wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4); |
| 1397 | |
| 1398 | cx1 = cx4; |
| 1399 | cy1 = cy4; |
| 1400 | cx2 = (double)(cx1 + x2) / 2; |
| 1401 | cy2 = (double)(cy1 + y2) / 2; |
| 1402 | } |
| 1403 | |
| 1404 | wx_spline_add_point( cx1, cy1 ); |
| 1405 | wx_spline_add_point( x2, y2 ); |
| 1406 | |
| 1407 | wx_spline_draw_point_array( this ); |
| 1408 | } |
| 1409 | |
| 1410 | #endif // wxUSE_SPLINE |
| 1411 | |
| 1412 | //----------------------------------------------------------------------------- |
| 1413 | // wxPaintDC |
| 1414 | //----------------------------------------------------------------------------- |
| 1415 | |
| 1416 | IMPLEMENT_DYNAMIC_CLASS(wxPaintDC,wxWindowDC) |
| 1417 | |
| 1418 | wxPaintDC::wxPaintDC() |
| 1419 | : wxWindowDC() |
| 1420 | { |
| 1421 | } |
| 1422 | |
| 1423 | wxPaintDC::wxPaintDC( wxWindow *win ) |
| 1424 | : wxWindowDC( win ) |
| 1425 | { |
| 1426 | } |
| 1427 | |
| 1428 | //----------------------------------------------------------------------------- |
| 1429 | // wxClientDC |
| 1430 | //----------------------------------------------------------------------------- |
| 1431 | |
| 1432 | IMPLEMENT_DYNAMIC_CLASS(wxClientDC,wxWindowDC) |
| 1433 | |
| 1434 | wxClientDC::wxClientDC() |
| 1435 | : wxWindowDC() |
| 1436 | { |
| 1437 | } |
| 1438 | |
| 1439 | wxClientDC::wxClientDC( wxWindow *win ) |
| 1440 | : wxWindowDC( win ) |
| 1441 | { |
| 1442 | } |
| 1443 | |