| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: svg.cpp |
| 3 | // Purpose: SVG sample |
| 4 | // Author: Chris Elliott |
| 5 | // Modified by: |
| 6 | // RCS-ID: $Id$ |
| 7 | // Licence: wxWindows license |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | |
| 11 | // For compilers that support precompilation, includes "wx/wx.h". |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #ifdef __BORLANDC__ |
| 15 | #pragma hdrstop |
| 16 | #endif |
| 17 | |
| 18 | #ifndef WX_PRECOMP |
| 19 | #include "wx/wx.h" |
| 20 | #endif |
| 21 | |
| 22 | #include "wx/svg/dcsvg.h" |
| 23 | |
| 24 | #include "wx/image.h" |
| 25 | |
| 26 | #define wxSVG_DEBUG FALSE |
| 27 | // or TRUE to see the calls being executed |
| 28 | #define newline wxString(wxT("\n")) |
| 29 | #define space wxString(wxT(" ")) |
| 30 | #define semicolon wxString(wxT(";")) |
| 31 | #define wx_round(a) (int)((a)+.5) |
| 32 | |
| 33 | #ifdef __BORLANDC__ |
| 34 | #pragma warn -rch |
| 35 | #pragma warn -ccc |
| 36 | #endif |
| 37 | |
| 38 | static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } ; |
| 39 | |
| 40 | wxString wxColStr ( wxColour c ) |
| 41 | { |
| 42 | unsigned char r, g, b ; |
| 43 | r = c.Red (); |
| 44 | g = c.Green (); |
| 45 | b = c. Blue (); |
| 46 | |
| 47 | // possible Unicode bug here |
| 48 | wxString s = wxDecToHex(r) + wxDecToHex(g) + wxDecToHex(b) ; |
| 49 | return s ; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | wxString wxBrushString ( wxColour c, int style ) |
| 54 | { |
| 55 | wxString s = wxT("fill:#") + wxColStr (c) + semicolon + space ; |
| 56 | switch ( style ) |
| 57 | { |
| 58 | case wxSOLID : |
| 59 | s = s + wxT("fill-opacity:1.0; "); |
| 60 | break ; |
| 61 | case wxTRANSPARENT: |
| 62 | s = s + wxT("fill-opacity:0.0; "); |
| 63 | break ; |
| 64 | |
| 65 | default : |
| 66 | wxASSERT_MSG(FALSE, wxT("wxSVGFileDC::Requested Brush Style not available")) ; |
| 67 | |
| 68 | } |
| 69 | s = s + newline ; |
| 70 | return s ; |
| 71 | } |
| 72 | |
| 73 | |
| 74 | void wxSVGFileDC::Init (wxString f, int Width, int Height, float dpi) |
| 75 | |
| 76 | { |
| 77 | //set up things first wxDCBase does all this? |
| 78 | m_width = Width ; |
| 79 | m_height = Height ; |
| 80 | |
| 81 | m_clipping = FALSE; |
| 82 | m_OK = TRUE; |
| 83 | |
| 84 | m_mm_to_pix_x = dpi/25.4; |
| 85 | m_mm_to_pix_y = dpi/25.4; |
| 86 | |
| 87 | m_signX = m_signY = 1; |
| 88 | |
| 89 | m_userScaleX = m_userScaleY = |
| 90 | m_deviceOriginX = m_deviceOriginY = 0; |
| 91 | |
| 92 | m_OriginX = m_OriginY = 0; |
| 93 | m_logicalOriginX = m_logicalOriginY = 0; |
| 94 | m_logicalScaleX = m_logicalScaleY = 0 ; |
| 95 | m_scaleX = m_scaleY = 1.0 ; |
| 96 | |
| 97 | m_logicalFunction = wxCOPY; |
| 98 | m_backgroundMode = wxTRANSPARENT; |
| 99 | m_mappingMode = wxMM_TEXT; |
| 100 | |
| 101 | m_backgroundBrush = *wxTRANSPARENT_BRUSH; |
| 102 | m_textForegroundColour = *wxBLACK; |
| 103 | m_textBackgroundColour = *wxWHITE; |
| 104 | m_colour = wxColourDisplay(); |
| 105 | |
| 106 | m_pen = *wxBLACK_PEN; |
| 107 | m_font = *wxNORMAL_FONT; |
| 108 | m_brush = *wxWHITE_BRUSH; |
| 109 | |
| 110 | m_graphics_changed = TRUE ; |
| 111 | |
| 112 | ////////////////////code here |
| 113 | |
| 114 | m_outfile = new wxFileOutputStream(f) ; |
| 115 | m_OK = m_outfile->Ok (); |
| 116 | if (m_OK) |
| 117 | { |
| 118 | m_filename = f ; |
| 119 | m_sub_images = 0 ; |
| 120 | wxString s ; |
| 121 | s = wxT("<?xml version=\"1.0\" standalone=\"no\"?>") ; s = s + newline ; |
| 122 | write(s); |
| 123 | s = wxT("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 20010904//EN\" ") + newline ; |
| 124 | write(s); |
| 125 | s = wxT("\"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\"> ")+ newline ; |
| 126 | write(s); |
| 127 | s.Printf ( wxT("<svg width=\"%.2gcm\" height=\"%.2gcm\" viewBox=\"0 0 %d %d \"> \n"), float(Width)/dpi*2.54, float(Height)/dpi*2.54, Width, Height ); |
| 128 | write(s); |
| 129 | s = wxT("<title>SVG Picture created as ") + wxFileNameFromPath(f) + wxT(" </title>") + newline ; |
| 130 | write(s); |
| 131 | s = wxString (wxT("<desc>Picture generated by wxSVG ")) + wxSVGVersion + wxT(" </desc>")+ newline ; |
| 132 | write(s); |
| 133 | s = wxT("<g style=\"fill:black; stroke:black; stroke-width:1\">") + newline ; |
| 134 | write(s); |
| 135 | |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | |
| 140 | // constructors |
| 141 | wxSVGFileDC::wxSVGFileDC (wxString f) |
| 142 | { |
| 143 | // quarter 640x480 screen display at 72 dpi |
| 144 | Init (f,320,240,72.0); |
| 145 | }; |
| 146 | |
| 147 | wxSVGFileDC::wxSVGFileDC (wxString f, int Width, int Height) |
| 148 | { |
| 149 | Init (f,Width,Height,72.0); |
| 150 | }; |
| 151 | |
| 152 | wxSVGFileDC::wxSVGFileDC (wxString f, int Width, int Height, float dpi) |
| 153 | { |
| 154 | Init (f,Width,Height,dpi); |
| 155 | }; |
| 156 | |
| 157 | wxSVGFileDC::~wxSVGFileDC() |
| 158 | { |
| 159 | wxString s = wxT("</g> \n</svg> \n") ; |
| 160 | write(s); |
| 161 | delete m_outfile ; |
| 162 | } |
| 163 | |
| 164 | |
| 165 | ////////////////////////////////////////////////////////////////////////////////////////// |
| 166 | |
| 167 | void wxSVGFileDC::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) |
| 168 | { |
| 169 | if (m_graphics_changed) NewGraphics (); |
| 170 | wxString s ; |
| 171 | s.Printf ( wxT("<path d=\"M%d %d L%d %d\" /> \n"), x1,y1,x2,y2 ); |
| 172 | if (m_OK) |
| 173 | { |
| 174 | write(s); |
| 175 | } |
| 176 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DrawLine Call executed")) ; |
| 177 | CalcBoundingBox(x1, y1) ; |
| 178 | CalcBoundingBox(x2, y2) ; |
| 179 | return; |
| 180 | }; |
| 181 | |
| 182 | void wxSVGFileDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset , wxCoord yoffset ) |
| 183 | { |
| 184 | for ( int i = 1; i < n ; i++ ) |
| 185 | { |
| 186 | DoDrawLine ( points [i-1].x + xoffset, points [i-1].y + yoffset, |
| 187 | points [ i ].x + xoffset, points [ i ].y + yoffset ) ; |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | |
| 192 | void wxSVGFileDC::DoDrawPoint (wxCoord x1, wxCoord y1) |
| 193 | { |
| 194 | wxString s; |
| 195 | if (m_graphics_changed) NewGraphics (); |
| 196 | s = wxT("<g style = \"stroke-linecap:round;\" > ") + newline ; |
| 197 | write(s); |
| 198 | DrawLine ( x1,y1,x1,y1 ); |
| 199 | s = wxT("</g>"); |
| 200 | write(s); |
| 201 | } |
| 202 | |
| 203 | |
| 204 | void wxSVGFileDC::DoDrawCheckMark(wxCoord x1, wxCoord y1, wxCoord width, wxCoord height) |
| 205 | { |
| 206 | wxDCBase::DoDrawCheckMark (x1,y1,width,height) ; |
| 207 | } |
| 208 | |
| 209 | |
| 210 | void wxSVGFileDC::DoDrawText(const wxString& text, wxCoord x1, wxCoord y1) |
| 211 | { |
| 212 | DoDrawRotatedText(text, x1,y1,0.0); |
| 213 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DrawText Call executed")) ; |
| 214 | } |
| 215 | |
| 216 | |
| 217 | void wxSVGFileDC::DoDrawRotatedText(const wxString& sText, wxCoord x, wxCoord y, double angle) |
| 218 | { |
| 219 | //known bug; if the font is drawn in a scaled DC, it will not behave exactly as wxMSW |
| 220 | if (m_graphics_changed) NewGraphics (); |
| 221 | wxString s, sTmp; |
| 222 | |
| 223 | // calculate bounding box |
| 224 | wxCoord w, h, desc ; |
| 225 | DoGetTextExtent(sText, &w, &h, &desc); |
| 226 | |
| 227 | double rad = DegToRad(angle); |
| 228 | |
| 229 | // wxT("upper left") and wxT("upper right") |
| 230 | CalcBoundingBox(x, y); |
| 231 | CalcBoundingBox((wxCoord)(x + w*cos(rad)), (wxCoord)(y - h*sin(rad))); |
| 232 | |
| 233 | // wxT("bottom left") and wxT("bottom right") |
| 234 | x += (wxCoord)(h*sin(rad)); |
| 235 | y += (wxCoord)(h*cos(rad)); |
| 236 | CalcBoundingBox(x, y); |
| 237 | CalcBoundingBox((wxCoord)(x + h*sin(rad)), (wxCoord)(y + h*cos(rad))); |
| 238 | |
| 239 | if (m_backgroundMode == wxSOLID) |
| 240 | { |
| 241 | // draw background first |
| 242 | // just like DoDrawRectangle except we pass the text color to it and set the border to a 1 pixel wide text background |
| 243 | |
| 244 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::Draw Rotated Text Call plotting text background")) ; |
| 245 | sTmp.Printf ( wxT(" <rect x=\"%d\" y=\"%d\" width=\"%d\" height=\"%d\" "), x,y+desc-h, w, h ); |
| 246 | s = sTmp + wxT("style=\"fill:#") + wxColStr (m_textBackgroundColour) + wxT("; ") ; |
| 247 | s = s + wxT("stroke-width:1; stroke:#") + wxColStr (m_textBackgroundColour) + wxT("; ") ; |
| 248 | sTmp.Printf ( wxT("\" transform=\"rotate( %.2g %d %d ) \">"), -angle, x,y ) ; |
| 249 | s = s + sTmp + newline ; |
| 250 | write(s); |
| 251 | } |
| 252 | //now do the text itself |
| 253 | s.Printf (wxT(" <text x=\"%d\" y=\"%d\" "),x,y ); |
| 254 | |
| 255 | sTmp = m_font.GetFaceName () ; |
| 256 | if (sTmp.Len () > 0) s = s + wxT("style=\"font-family:") + sTmp + wxT("; "); |
| 257 | else s = s + wxT("style=\" ") ; |
| 258 | |
| 259 | wxString fontweights [3] = { wxT("normal"), wxT("lighter"), wxT("bold") }; |
| 260 | s = s + wxT("font-weight:") + fontweights[m_font.GetWeight() - wxNORMAL] + semicolon + space; |
| 261 | |
| 262 | wxString fontstyles [5] = { wxT("normal"), wxT("style error"), wxT("style error"), wxT("italic"), wxT("oblique") }; |
| 263 | s = s + wxT("font-style:") + fontstyles[m_font.GetStyle() - wxNORMAL] + semicolon + space; |
| 264 | |
| 265 | sTmp.Printf (wxT("font-size:%dpt; fill:#"), m_font.GetPointSize () ); |
| 266 | s = s + sTmp ; |
| 267 | s = s + wxColStr (m_textForegroundColour) + wxT("; stroke:#") + wxColStr (m_textForegroundColour) + wxT("; ") ; |
| 268 | sTmp.Printf ( wxT("stroke-width:0;\" transform=\"rotate( %.2g %d %d ) \" >"), -angle, x,y ) ; |
| 269 | s = s + sTmp + sText + wxT("</text> ") + newline ; |
| 270 | if (m_OK) |
| 271 | { |
| 272 | write(s); |
| 273 | } |
| 274 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DrawRotatedText Call executed")) ; |
| 275 | |
| 276 | } |
| 277 | |
| 278 | |
| 279 | void wxSVGFileDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) |
| 280 | { |
| 281 | DoDrawRoundedRectangle(x, y, width, height, 0) ; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | void wxSVGFileDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius ) |
| 286 | |
| 287 | { |
| 288 | if (m_graphics_changed) NewGraphics (); |
| 289 | wxString s ; |
| 290 | |
| 291 | s.Printf ( wxT(" <rect x=\"%d\" y=\"%d\" width=\"%d\" height=\"%d\" rx=\"%.2g\" "), |
| 292 | x, y, width, height, radius ); |
| 293 | |
| 294 | s = s + wxT(" /> ") + newline ; |
| 295 | write(s); |
| 296 | |
| 297 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawRoundedRectangle Call executed")) ; |
| 298 | CalcBoundingBox(x, y) ; |
| 299 | CalcBoundingBox(x + width, y + height) ; |
| 300 | |
| 301 | } |
| 302 | |
| 303 | |
| 304 | void wxSVGFileDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle) |
| 305 | { |
| 306 | if (m_graphics_changed) NewGraphics (); |
| 307 | wxString s, sTmp ; |
| 308 | s = wxT("<polygon style=\"") ; |
| 309 | if ( fillStyle == wxODDEVEN_RULE ) |
| 310 | s = s + wxT("fill-rule:evenodd; "); |
| 311 | else |
| 312 | s = s + wxT("fill-rule:nonzero; "); |
| 313 | |
| 314 | s = s + wxT("\" \npoints=\"") ; |
| 315 | |
| 316 | for (int i = 0; i < n; i++) |
| 317 | { |
| 318 | sTmp.Printf ( wxT("%d,%d"), points [i].x+xoffset, points[i].y+yoffset ); |
| 319 | s = s + sTmp + newline ; |
| 320 | CalcBoundingBox ( points [i].x+xoffset, points[i].y+yoffset); |
| 321 | } |
| 322 | s = s + wxT("\" /> ") ; |
| 323 | s = s + newline ; |
| 324 | write(s); |
| 325 | |
| 326 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawPolygon Call executed")) ; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | void wxSVGFileDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height) |
| 331 | |
| 332 | { |
| 333 | if (m_graphics_changed) NewGraphics (); |
| 334 | |
| 335 | int rh = height /2 ; |
| 336 | int rw = width /2 ; |
| 337 | |
| 338 | wxString s; |
| 339 | s.Printf ( wxT("<ellipse cx=\"%d\" cy=\"%d\" rx=\"%d\" ry=\"%d\" "), x+rw,y+rh, rw, rh ); |
| 340 | s = s + wxT(" /> ") + newline ; |
| 341 | |
| 342 | write(s); |
| 343 | |
| 344 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawEllipse Call executed")) ; |
| 345 | CalcBoundingBox(x, y) ; |
| 346 | CalcBoundingBox(x + width, y + height) ; |
| 347 | } |
| 348 | |
| 349 | |
| 350 | void wxSVGFileDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc) |
| 351 | { |
| 352 | /* Draws an arc of a circle, centred on (xc, yc), with starting point |
| 353 | (x1, y1) and ending at (x2, y2). The current pen is used for the outline |
| 354 | and the current brush for filling the shape. |
| 355 | |
| 356 | The arc is drawn in an anticlockwise direction from the start point to |
| 357 | the end point. |
| 358 | |
| 359 | Might be better described as Pie drawing */ |
| 360 | |
| 361 | if (m_graphics_changed) NewGraphics (); |
| 362 | wxString s ; |
| 363 | |
| 364 | // we need the radius of the circle which has two estimates |
| 365 | double r1 = sqrt ( double( (x1-xc)*(x1-xc) ) + double( (y1-yc)*(y1-yc) ) ); |
| 366 | double r2 = sqrt ( double( (x2-xc)*(x2-xc) ) + double( (y2-yc)*(y2-yc) ) ); |
| 367 | |
| 368 | wxASSERT_MSG( (fabs ( r2-r1 ) <= 3), wxT("wxSVGFileDC::DoDrawArc Error in getting radii of circle")) ; |
| 369 | if ( fabs ( r2-r1 ) > 3 ) //pixels |
| 370 | { |
| 371 | s = wxT("<!--- wxSVGFileDC::DoDrawArc Error in getting radii of circle --> \n") ; |
| 372 | write(s); |
| 373 | } |
| 374 | |
| 375 | double theta1 = atan2((double)(yc-y1),(double)(x1-xc)); |
| 376 | if ( theta1 < 0 ) theta1 = theta1 + M_PI * 2; |
| 377 | double theta2 = atan2((double)(yc-y2), (double)(x2-xc)); |
| 378 | if ( theta2 < 0 ) theta2 = theta2 + M_PI * 2; |
| 379 | if ( theta2 < theta1 ) theta2 = theta2 + M_PI *2 ; |
| 380 | |
| 381 | int fArc ; // flag for large or small arc 0 means less than 180 degrees |
| 382 | if ( fabs(theta2 - theta1) > M_PI ) fArc = 1; else fArc = 0 ; |
| 383 | |
| 384 | int fSweep = 0 ; // flag for sweep always 0 |
| 385 | |
| 386 | s.Printf ( wxT("<path d=\"M%d %d A%.2g %.2g 0.0 %d %d %d %d L%d %d z "), |
| 387 | x1,y1, r1, r2, fArc, fSweep, x2, y2, xc, yc ); |
| 388 | |
| 389 | // the z means close the path and fill |
| 390 | s = s + wxT(" \" /> ") + newline ; |
| 391 | |
| 392 | |
| 393 | if (m_OK) |
| 394 | { |
| 395 | write(s); |
| 396 | } |
| 397 | |
| 398 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawArc Call executed")) ; |
| 399 | } |
| 400 | |
| 401 | |
| 402 | void wxSVGFileDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea) |
| 403 | { |
| 404 | /* |
| 405 | Draws an arc of an ellipse. The current pen is used for drawing the arc |
| 406 | and the current brush is used for drawing the pie. This function is |
| 407 | currently only available for X window and PostScript device contexts. |
| 408 | |
| 409 | x and y specify the x and y coordinates of the upper-left corner of the |
| 410 | rectangle that contains the ellipse. |
| 411 | |
| 412 | width and height specify the width and height of the rectangle that |
| 413 | contains the ellipse. |
| 414 | |
| 415 | start and end specify the start and end of the arc relative to the |
| 416 | three-o'clock position from the center of the rectangle. Angles are |
| 417 | specified in degrees (360 is a complete circle). Positive values mean |
| 418 | counter-clockwise motion. If start is equal to end, a complete ellipse |
| 419 | will be drawn. */ |
| 420 | |
| 421 | //known bug: SVG draws with the current pen along the radii, but this does not happen in wxMSW |
| 422 | |
| 423 | if (m_graphics_changed) NewGraphics (); |
| 424 | |
| 425 | wxString s ; |
| 426 | //radius |
| 427 | double rx = w / 2 ; |
| 428 | double ry = h / 2 ; |
| 429 | // center |
| 430 | double xc = x + rx ; |
| 431 | double yc = y + ry ; |
| 432 | |
| 433 | double xs, ys, xe, ye ; |
| 434 | xs = xc + rx * cos (DegToRad(sa)) ; |
| 435 | xe = xc + rx * cos (DegToRad(ea)) ; |
| 436 | ys = yc - ry * sin (DegToRad(sa)) ; |
| 437 | ye = yc - ry * sin (DegToRad(ea)) ; |
| 438 | |
| 439 | ///now same as circle arc... |
| 440 | |
| 441 | double theta1 = atan2(ys-yc, xs-xc); |
| 442 | double theta2 = atan2(ye-yc, xe-xc); |
| 443 | |
| 444 | int fArc ; // flag for large or small arc 0 means less than 180 degrees |
| 445 | if ( (theta2 - theta1) > 0 ) fArc = 1; else fArc = 0 ; |
| 446 | |
| 447 | int fSweep ; |
| 448 | if ( fabs(theta2 - theta1) > M_PI) fSweep = 1; else fSweep = 0 ; |
| 449 | |
| 450 | s.Printf ( wxT("<path d=\"M%d %d A%d %d 0.0 %d %d %d %d L %d %d z "), |
| 451 | int(xs), int(ys), int(rx), int(ry), |
| 452 | fArc, fSweep, int(xe), int(ye), int(xc), int(yc) ); |
| 453 | |
| 454 | |
| 455 | s = s + wxT(" \" /> ") + newline ; |
| 456 | |
| 457 | if (m_OK) |
| 458 | { |
| 459 | write(s); |
| 460 | } |
| 461 | |
| 462 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawEllipticArc Call executed")) ; |
| 463 | } |
| 464 | |
| 465 | |
| 466 | void wxSVGFileDC::DoGetTextExtent(const wxString& string, wxCoord *w, wxCoord *h, wxCoord *descent , wxCoord *externalLeading , wxFont *font) const |
| 467 | |
| 468 | { |
| 469 | wxScreenDC sDC ; |
| 470 | |
| 471 | sDC.SetFont (m_font); |
| 472 | if ( font != NULL ) sDC.SetFont ( *font ); |
| 473 | sDC.GetTextExtent(string, w, h, descent, externalLeading ); |
| 474 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::GetTextExtent Call executed")) ; |
| 475 | } |
| 476 | |
| 477 | |
| 478 | wxCoord wxSVGFileDC::GetCharHeight() const |
| 479 | |
| 480 | { |
| 481 | wxScreenDC sDC ; |
| 482 | sDC.SetFont (m_font); |
| 483 | |
| 484 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::GetCharHeight Call executing")) ; |
| 485 | return ( sDC.GetCharHeight() ); |
| 486 | |
| 487 | } |
| 488 | |
| 489 | |
| 490 | wxCoord wxSVGFileDC::GetCharWidth() const |
| 491 | { |
| 492 | wxScreenDC sDC ; |
| 493 | sDC.SetFont (m_font); |
| 494 | |
| 495 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::GetCharWidth Call executing")) ; |
| 496 | return ( sDC.GetCharWidth() ) ; |
| 497 | |
| 498 | } |
| 499 | |
| 500 | |
| 501 | /// Set Functions ///////////////////////////////////////////////////////////////// |
| 502 | void wxSVGFileDC::SetBackground( const wxBrush &brush ) |
| 503 | { |
| 504 | |
| 505 | m_backgroundBrush = brush; |
| 506 | return; |
| 507 | } |
| 508 | |
| 509 | |
| 510 | void wxSVGFileDC::SetBackgroundMode( int mode ) |
| 511 | { |
| 512 | m_backgroundMode = mode; |
| 513 | return; |
| 514 | } |
| 515 | |
| 516 | |
| 517 | void wxSVGFileDC::SetBrush(const wxBrush& brush) |
| 518 | |
| 519 | { |
| 520 | m_brush = brush ; |
| 521 | |
| 522 | m_graphics_changed = TRUE ; |
| 523 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::SetBrush Call executed")) ; |
| 524 | } |
| 525 | |
| 526 | |
| 527 | void wxSVGFileDC::SetPen(const wxPen& pen) |
| 528 | { |
| 529 | // width, color, ends, joins : currently implemented |
| 530 | // dashes, stipple : not implemented |
| 531 | m_pen = pen ; |
| 532 | |
| 533 | m_graphics_changed = TRUE ; |
| 534 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::SetPen Call executed")) ; |
| 535 | } |
| 536 | |
| 537 | void wxSVGFileDC::NewGraphics () |
| 538 | { |
| 539 | |
| 540 | int w = m_pen.GetWidth (); |
| 541 | wxColour c = m_pen.GetColour () ; |
| 542 | |
| 543 | wxString s, sBrush, sPenCap, sPenJoin, sPenStyle, sLast, sWarn; |
| 544 | |
| 545 | sBrush = wxT("</g>\n<g style=\"") + wxBrushString ( m_brush.GetColour (), m_brush.GetStyle () ) |
| 546 | + wxT(" stroke:#") + wxColStr (c) + wxT("; ") ; |
| 547 | |
| 548 | switch ( m_pen.GetCap () ) |
| 549 | { |
| 550 | case wxCAP_PROJECTING : |
| 551 | sPenCap = wxT("stroke-linecap:square; ") ; |
| 552 | break ; |
| 553 | case wxCAP_BUTT : |
| 554 | sPenCap = wxT("stroke-linecap:butt; ") ; |
| 555 | break ; |
| 556 | case wxCAP_ROUND : |
| 557 | default : |
| 558 | sPenCap = wxT("stroke-linecap:round; ") ; |
| 559 | }; |
| 560 | switch ( m_pen.GetJoin () ) |
| 561 | { |
| 562 | case wxJOIN_BEVEL : |
| 563 | sPenJoin = wxT("stroke-linejoin:bevel; ") ; |
| 564 | break ; |
| 565 | case wxJOIN_MITER : |
| 566 | sPenJoin = wxT("stroke-linejoin:miter; ") ; |
| 567 | break ; |
| 568 | case wxJOIN_ROUND : |
| 569 | default : |
| 570 | sPenJoin = wxT("stroke-linejoin:round; ") ; |
| 571 | }; |
| 572 | |
| 573 | switch ( m_pen.GetStyle () ) |
| 574 | { |
| 575 | case wxSOLID : |
| 576 | sPenStyle = wxT("stroke-opacity:1.0; stroke-opacity:1.0; ") ; |
| 577 | break ; |
| 578 | case wxTRANSPARENT : |
| 579 | sPenStyle = wxT("stroke-opacity:0.0; stroke-opacity:0.0; ") ; |
| 580 | break ; |
| 581 | default : |
| 582 | wxASSERT_MSG(FALSE, wxT("wxSVGFileDC::SetPen Call called to set a Style which is not available")) ; |
| 583 | sWarn = sWarn + wxT("<!--- wxSVGFileDC::SetPen Call called to set a Style which is not available --> \n") ; |
| 584 | } |
| 585 | |
| 586 | sLast.Printf ( wxT("stroke-width:%d\" \n transform=\"translate(%.2g %.2g) scale(%.2g %.2g)\">"), |
| 587 | w, m_OriginX, m_OriginY, m_scaleX, m_scaleY ); |
| 588 | |
| 589 | s = sBrush + sPenCap + sPenJoin + sPenStyle + sLast + newline + sWarn; |
| 590 | write(s); |
| 591 | m_graphics_changed = FALSE ; |
| 592 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::NewGraphics Call executed")) ; |
| 593 | } |
| 594 | |
| 595 | |
| 596 | void wxSVGFileDC::SetFont(const wxFont& font) |
| 597 | |
| 598 | { |
| 599 | m_font = font ; |
| 600 | |
| 601 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::SetFont Call executed")) ; |
| 602 | } |
| 603 | |
| 604 | |
| 605 | void wxSVGFileDC::ComputeScaleAndOrigin() |
| 606 | { |
| 607 | m_scaleX = m_logicalScaleX * m_userScaleX; |
| 608 | m_scaleY = m_logicalScaleY * m_userScaleY; |
| 609 | m_OriginX = m_logicalOriginX * m_logicalScaleX + m_deviceOriginX ; |
| 610 | m_OriginY = m_logicalOriginY * m_logicalScaleY + m_deviceOriginY ; |
| 611 | m_graphics_changed = TRUE; |
| 612 | } |
| 613 | |
| 614 | |
| 615 | int wxSVGFileDC::GetMapMode() |
| 616 | { |
| 617 | return m_mappingMode ; |
| 618 | } |
| 619 | |
| 620 | |
| 621 | void wxSVGFileDC::SetMapMode( int mode ) |
| 622 | { |
| 623 | switch (mode) |
| 624 | { |
| 625 | case wxMM_TWIPS: |
| 626 | SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y ); |
| 627 | break; |
| 628 | case wxMM_POINTS: |
| 629 | SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y ); |
| 630 | break; |
| 631 | case wxMM_METRIC: |
| 632 | SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y ); |
| 633 | break; |
| 634 | case wxMM_LOMETRIC: |
| 635 | SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 ); |
| 636 | break; |
| 637 | default: |
| 638 | case wxMM_TEXT: |
| 639 | SetLogicalScale( 1.0, 1.0 ); |
| 640 | break; |
| 641 | } |
| 642 | m_mappingMode = mode; |
| 643 | |
| 644 | /* we don't do this mega optimisation |
| 645 | if (mode != wxMM_TEXT) |
| 646 | { |
| 647 | m_needComputeScaleX = TRUE; |
| 648 | m_needComputeScaleY = TRUE; |
| 649 | } |
| 650 | */ |
| 651 | } |
| 652 | |
| 653 | |
| 654 | void wxSVGFileDC::GetUserScale(double *x, double *y) const |
| 655 | { |
| 656 | *x = m_userScaleX ; |
| 657 | *y = m_userScaleY ; |
| 658 | } |
| 659 | |
| 660 | |
| 661 | void wxSVGFileDC::SetUserScale( double x, double y ) |
| 662 | { |
| 663 | // allow negative ? -> no |
| 664 | m_userScaleX = x; |
| 665 | m_userScaleY = y; |
| 666 | ComputeScaleAndOrigin(); |
| 667 | } |
| 668 | |
| 669 | |
| 670 | void wxSVGFileDC::SetLogicalScale( double x, double y ) |
| 671 | { |
| 672 | // allow negative ? |
| 673 | m_logicalScaleX = x; |
| 674 | m_logicalScaleY = y; |
| 675 | ComputeScaleAndOrigin(); |
| 676 | } |
| 677 | |
| 678 | |
| 679 | void wxSVGFileDC::SetLogicalOrigin( wxCoord x, wxCoord y ) |
| 680 | { |
| 681 | // is this still correct ? |
| 682 | m_logicalOriginX = x * m_signX; |
| 683 | m_logicalOriginY = y * m_signY; |
| 684 | ComputeScaleAndOrigin(); |
| 685 | } |
| 686 | |
| 687 | |
| 688 | void wxSVGFileDC::SetDeviceOrigin( wxCoord x, wxCoord y ) |
| 689 | { |
| 690 | // only wxPostScripDC has m_signX = -1, |
| 691 | m_deviceOriginX = x; |
| 692 | m_deviceOriginY = y; |
| 693 | ComputeScaleAndOrigin(); |
| 694 | } |
| 695 | |
| 696 | |
| 697 | void wxSVGFileDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) |
| 698 | { |
| 699 | // only wxPostScripDC has m_signX = -1, |
| 700 | m_signX = (xLeftRight ? 1 : -1); |
| 701 | m_signY = (yBottomUp ? -1 : 1); |
| 702 | ComputeScaleAndOrigin(); |
| 703 | } |
| 704 | |
| 705 | |
| 706 | // export a bitmap as a raster image in png |
| 707 | bool wxSVGFileDC::DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, |
| 708 | wxDC* source, wxCoord xsrc, wxCoord ysrc, |
| 709 | int logicalFunc /*= wxCOPY*/, bool useMask /*= FALSE*/, |
| 710 | wxCoord /*xsrcMask = -1*/, wxCoord /*ysrcMask = -1*/) |
| 711 | { |
| 712 | if (logicalFunc != wxCOPY) |
| 713 | { |
| 714 | wxASSERT_MSG(FALSE, wxT("wxSVGFileDC::DoBlit Call requested nonCopy mode; this is not possible")) ; |
| 715 | return FALSE ; |
| 716 | } |
| 717 | if (useMask != FALSE) |
| 718 | { |
| 719 | wxASSERT_MSG(FALSE, wxT("wxSVGFileDC::DoBlit Call requested False mask ; this is not possible")) ; |
| 720 | return FALSE ; |
| 721 | } |
| 722 | wxBitmap myBitmap (width, height) ; |
| 723 | wxMemoryDC memDC; |
| 724 | memDC.SelectObject( myBitmap ); |
| 725 | memDC.Blit(0, 0, width, height, source, xsrc, ysrc); |
| 726 | memDC.SelectObject( wxNullBitmap ); |
| 727 | DoDrawBitmap(myBitmap, xdest, ydest); |
| 728 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoBlit Call executed")) ; |
| 729 | return FALSE ; |
| 730 | } |
| 731 | |
| 732 | |
| 733 | void wxSVGFileDC::DoDrawIcon(const class wxIcon & myIcon, wxCoord x, wxCoord y) |
| 734 | { |
| 735 | wxBitmap myBitmap (myIcon.GetWidth(), myIcon.GetHeight() ) ; |
| 736 | wxMemoryDC memDC; |
| 737 | memDC.SelectObject( myBitmap ); |
| 738 | memDC.DrawIcon(myIcon,0,0); |
| 739 | memDC.SelectObject( wxNullBitmap ); |
| 740 | DoDrawBitmap(myBitmap, x, y); |
| 741 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawIcon Call executed")) ; |
| 742 | return ; |
| 743 | } |
| 744 | |
| 745 | |
| 746 | |
| 747 | void wxSVGFileDC::DoDrawBitmap(const class wxBitmap & bmp, wxCoord x, wxCoord y , bool WXUNUSED(bTransparent) /*=0*/ ) |
| 748 | { |
| 749 | if (m_graphics_changed) NewGraphics (); |
| 750 | |
| 751 | wxString sTmp, s, sPNG ; |
| 752 | wxImage::AddHandler(new wxPNGHandler); |
| 753 | |
| 754 | // create suitable file name |
| 755 | sTmp.Printf ( wxT("_image%d.png"), m_sub_images); |
| 756 | sPNG = m_filename.BeforeLast(wxT('.')) + sTmp; |
| 757 | while (wxFile::Exists(sPNG) ) |
| 758 | { |
| 759 | m_sub_images ++ ; |
| 760 | sTmp.Printf ( wxT("_image%d.png"), m_sub_images); |
| 761 | sPNG = m_filename.BeforeLast(wxT('.')) + sTmp; |
| 762 | } |
| 763 | |
| 764 | //create copy of bitmap (wxGTK doesn't like saving a constant bitmap) |
| 765 | wxBitmap myBitmap = bmp ; |
| 766 | //save it |
| 767 | bool bPNG_OK = myBitmap.SaveFile(sPNG,wxBITMAP_TYPE_PNG); |
| 768 | |
| 769 | // refrence the bitmap from the SVG doc |
| 770 | int w = myBitmap.GetWidth(); |
| 771 | int h = myBitmap.GetHeight(); |
| 772 | sTmp.Printf ( wxT(" <image x=\"%d\" y=\"%d\" width=\"%dpx\" height=\"%dpx\" "), x,y,w,h ); |
| 773 | s = s + sTmp ; |
| 774 | sTmp.Printf ( wxT(" xlink:href=\"%s\"> \n"), sPNG.c_str() ); |
| 775 | s = s + sTmp + wxT("<title>Image from wxSVG</title> </image>") + newline; |
| 776 | |
| 777 | if (m_OK && bPNG_OK) |
| 778 | { |
| 779 | write(s); |
| 780 | } |
| 781 | m_OK = m_outfile->Ok () && bPNG_OK; |
| 782 | wxASSERT_MSG(!wxSVG_DEBUG, wxT("wxSVGFileDC::DoDrawBitmap Call executed")) ; |
| 783 | |
| 784 | return ; |
| 785 | } |
| 786 | |
| 787 | |
| 788 | // --------------------------------------------------------------------------- |
| 789 | // coordinates transformations |
| 790 | // --------------------------------------------------------------------------- |
| 791 | |
| 792 | wxCoord wxSVGFileDC::DeviceToLogicalX(wxCoord x) const |
| 793 | { |
| 794 | return XDEV2LOG(x); |
| 795 | } |
| 796 | |
| 797 | |
| 798 | wxCoord wxSVGFileDC::DeviceToLogicalY(wxCoord y) const |
| 799 | { |
| 800 | return YDEV2LOG(y); |
| 801 | } |
| 802 | |
| 803 | |
| 804 | wxCoord wxSVGFileDC::DeviceToLogicalXRel(wxCoord x) const |
| 805 | { |
| 806 | return XDEV2LOGREL(x); |
| 807 | } |
| 808 | |
| 809 | |
| 810 | wxCoord wxSVGFileDC::DeviceToLogicalYRel(wxCoord y) const |
| 811 | { |
| 812 | return YDEV2LOGREL(y); |
| 813 | } |
| 814 | |
| 815 | |
| 816 | wxCoord wxSVGFileDC::LogicalToDeviceX(wxCoord x) const |
| 817 | { |
| 818 | return XLOG2DEV(x); |
| 819 | } |
| 820 | |
| 821 | |
| 822 | wxCoord wxSVGFileDC::LogicalToDeviceY(wxCoord y) const |
| 823 | { |
| 824 | return YLOG2DEV(y); |
| 825 | } |
| 826 | |
| 827 | |
| 828 | wxCoord wxSVGFileDC::LogicalToDeviceXRel(wxCoord x) const |
| 829 | { |
| 830 | return XLOG2DEVREL(x); |
| 831 | } |
| 832 | |
| 833 | |
| 834 | wxCoord wxSVGFileDC::LogicalToDeviceYRel(wxCoord y) const |
| 835 | { |
| 836 | return YLOG2DEVREL(y); |
| 837 | } |
| 838 | |
| 839 | void wxSVGFileDC::write(const wxString &s) |
| 840 | { |
| 841 | const wxWX2MBbuf buf = s.mb_str(wxConvUTF8); |
| 842 | m_outfile->Write(buf, strlen((const char *)buf)); |
| 843 | m_OK = m_outfile->Ok(); |
| 844 | } |
| 845 | |
| 846 | #ifdef __BORLANDC__ |
| 847 | #pragma warn .rch |
| 848 | #pragma warn .ccc |
| 849 | #endif |