Exemple #1
0
void wdCanvasGetTextBounds(cdCanvas* canvas, double x, double y, const char *s, double *rect)
{
  int rx, ry, rrect[8];

  _wWorld2Canvas(canvas, x, y, rx, ry);
  cdCanvasGetTextBounds(canvas, rx, ry, s, rrect);

  _wCanvas2World(canvas, rrect[0], rrect[1], rect[0], rect[1]);
  _wCanvas2World(canvas, rrect[2], rrect[3], rect[2], rect[3]);
  _wCanvas2World(canvas, rrect[4], rrect[5], rect[4], rect[5]);
  _wCanvas2World(canvas, rrect[6], rrect[7], rect[6], rect[7]);
}
Exemple #2
0
void DrawTextBox(cdCanvas* canvas, int x, int y, char* text)
{
  int rect[8], draw_box;

  cdCanvasLineWidth(canvas, 1);
  cdCanvasLineStyle(canvas, CD_CONTINUOUS);

  draw_box = 0;
  if (draw_box)
  {
    int xmin, xmax, ymin, ymax;
    cdCanvasGetTextBox(canvas, x, y, text, &xmin, &xmax, &ymin, &ymax);
    cdCanvasRect(canvas, xmin, xmax, ymin, ymax);

    if (cdCanvasTextOrientation(canvas, CD_QUERY) == 0)
    {
      cdCanvasForeground(canvas, CD_RED);
      cdCanvasLine(canvas, xmin, y, xmax, y);
    }
  }
  else
  {
    /* bounding box */
    cdCanvasGetTextBounds(canvas, x, y, text, rect);
    cdCanvasForeground(canvas, CD_GREEN);
    cdCanvasBegin(canvas, CD_CLOSED_LINES);
    cdCanvasVertex(canvas, rect[0], rect[1]);
    cdCanvasVertex(canvas, rect[2], rect[3]);
    cdCanvasVertex(canvas, rect[4], rect[5]);
    cdCanvasVertex(canvas, rect[6], rect[7]);
    cdCanvasEnd(canvas);
  }

  /* reference point */
  cdCanvasForeground(canvas, CD_BLUE);
  cdCanvasMarkType(canvas, CD_PLUS);
  cdCanvasMarkSize(canvas, 30);
  cdCanvasMark(canvas, x, y);

  cdCanvasForeground(canvas, CD_BLACK);
  cdCanvasText(canvas, x, y, text);
}
Exemple #3
0
void SimpleDrawAll(cdCanvas* canvas)
{
  int w, h;
  cdCanvasGetSize(canvas, &w, &h, NULL, NULL);
  
  /* Clear the background to be white */
  cdCanvasBackground(canvas, CD_WHITE);
//  cdBackground(CD_GREEN);
  cdCanvasClear(canvas);

  /* Draw a reactangle and a polyline at the bottom-left area,
     using a thick line with transparency.
     Observe that transparency is only supported in a few drivers,
     and line join is not supported in the IMAGERGB driver. */
  cdCanvasLineWidth(canvas, 3);
  cdCanvasLineStyle(canvas, CD_CONTINUOUS);
  cdCanvasForeground(canvas, cdEncodeAlpha(CD_DARK_MAGENTA, 128));
  cdCanvasRect(canvas, 100, 200, 100, 200);

  cdCanvasBegin(canvas, CD_OPEN_LINES);
  cdCanvasVertex(canvas, 300, 250);
  cdCanvasVertex(canvas, 320, 270);
  cdCanvasVertex(canvas, 350, 260);
  cdCanvasVertex(canvas, 340, 200);
  cdCanvasVertex(canvas, 310, 210);
  cdCanvasEnd(canvas);
  
  /* Draw the red diagonal line with a custom line style. 
     Observe that line styles are not supported in the IMAGERGB driver. */
  cdCanvasForeground(canvas, CD_RED);
  cdCanvasLineWidth(canvas, 3);
  {
    int dashes[] = {20, 15, 5, 5};
    cdCanvasLineStyleDashes(canvas, dashes, 4);
  }
  cdCanvasLineStyle(canvas, CD_CUSTOM);
  cdCanvasLine(canvas, 0, 0, w-1, h-1);

  /* Draw the blue diagonal line with a pre-defined line style.
     Observe that the pre-defined line style is dependent on the driver. */
  cdCanvasForeground(canvas, CD_BLUE);
  cdCanvasLineWidth(canvas, 10);
  cdCanvasLineStyle(canvas, CD_DOTTED);
  cdCanvasLine(canvas, 0, h-1, w-1, 0);

  switch(clipping)
  {
  case CD_CLIPOFF:
    cdCanvasClip(canvas, CD_CLIPOFF);
    break;
  case CD_CLIPAREA:
    /* Defines the clipping area equals the canvas area minus a 100 pixels margin. */
    cdCanvasClipArea(canvas, 100, w - 100, 100, h - 100);
    cdCanvasClip(canvas, CD_CLIPAREA);
    break;
  case CD_CLIPPOLYGON:
    cdCanvasBegin(canvas, CD_CLIP);
    cdCanvasVertex(canvas, 100, 100);
    cdCanvasVertex(canvas, w - 100, 100);
    cdCanvasVertex(canvas, w / 2, h - 100);
    cdCanvasEnd(canvas);
    cdCanvasClip(canvas, CD_CLIPPOLYGON);
    break;
  case CD_CLIPREGION:
    cdCanvasTextAlignment(canvas, CD_CENTER);
    cdCanvasFont(canvas, "Times", CD_BOLD, 50);

    cdCanvasBegin(canvas, CD_REGION);
    cdCanvasRegionCombineMode(canvas, CD_UNION);
    cdCanvasBox(canvas, 100, 200, 100, 200);
    cdCanvasSector(canvas, w/2-50, h/2+50, 150, 150, 0, 360);
    cdCanvasSector(canvas, w/2-50, h/2-50, 150, 150, 0, 360);
    cdCanvasSector(canvas, w/2+50, h/2+50, 150, 150, 0, 360);
    cdCanvasSector(canvas, w/2+50, h/2-50, 150, 150, 0, 360);
    cdCanvasRegionCombineMode(canvas, CD_DIFFERENCE); 
    cdCanvasText(canvas, w/2, h/2, "TEXT");
    cdCanvasEnd(canvas);
//    cdCanvasOffsetRegion(canvas, -50, 50);
    cdCanvasClip(canvas, CD_CLIPREGION);

    cdCanvasForeground(canvas, CD_DARK_RED);
    cdCanvasBox(canvas, 0,w,0,h);
    break;
  }

  switch(write_mode)
  {
  case CD_REPLACE:
    cdCanvasWriteMode(canvas, CD_REPLACE);
    break;
  case CD_XOR:
    cdCanvasWriteMode(canvas, CD_XOR);
    break;
  case CD_NOT_XOR:
    cdCanvasWriteMode(canvas, CD_NOT_XOR);
    break;
  }

  if (use_transform)
  {
    cdCanvasTransform(canvas, NULL);
    cdCanvasTransformTranslate(canvas, w/2, h/2);
    cdCanvasTransformRotate(canvas, 30);
    cdCanvasTransformScale(canvas, 0.5, 0.5);
    cdCanvasTransformTranslate(canvas, -w/2, -h/2);
  }

//  cdSetfAttribute("ROTATE", "15 %d %d", w/2, h/2);

  /* Reset line style and width */
  cdCanvasLineStyle(canvas, CD_CONTINUOUS);
  cdCanvasLineWidth(canvas, 1);
//  cdBackOpacity(CD_TRANSPARENT); 
                   
  /* Draw an arc at bottom-left, and a sector at bottom-right.
     Notice that counter-clockwise orientation of both. */
  cdCanvasInteriorStyle(canvas, CD_SOLID);
  cdCanvasForeground(canvas, CD_MAGENTA);
  cdCanvasSector(canvas, w-100, 100, 100, 100, 50, 180);
  cdCanvasForeground(canvas, CD_RED);
  cdCanvasArc(canvas, 100, 100, 100, 100, 50, 180);

  /* Draw a solid filled rectangle at center. */
  cdCanvasForeground(canvas, CD_YELLOW);
  cdCanvasBox(canvas, w/2 - 100, w/2 + 100, h/2 - 100, h/2 + 100); 

  /* Prepare font for text. */
  cdCanvasTextAlignment(canvas, CD_CENTER);
  cdCanvasTextOrientation(canvas, 70);
  cdCanvasFont(canvas, "Times", CD_BOLD, 24);

  /* Draw text at center, with orientation, 
     and draw its bounding box. 
     Notice that in some drivers the bounding box is not precise. */
  {
    int rect[8];
    cdCanvasGetTextBounds(canvas, w/2, h/2, "Simple Draw (pçãí)", rect);
    cdCanvasForeground(canvas, CD_RED);
    cdCanvasBegin(canvas, CD_CLOSED_LINES);
    cdCanvasVertex(canvas, rect[0], rect[1]);
    cdCanvasVertex(canvas, rect[2], rect[3]);
    cdCanvasVertex(canvas, rect[4], rect[5]);
    cdCanvasVertex(canvas, rect[6], rect[7]);
    cdCanvasEnd(canvas);
  }
  cdCanvasForeground(canvas, CD_BLUE);
  cdCanvasText(canvas, w/2, h/2, "Simple Draw (pçãí)");
  cdCanvasTextOrientation(canvas, 0);

  /* Prepare World Coordinates */
  wdCanvasViewport(canvas, 0,w-1,0,h-1);
  if (w>h)
    wdCanvasWindow(canvas, 0,(double)w/(double)h,0,1);
  else
    wdCanvasWindow(canvas, 0,1,0,(double)h/(double)w);

  /* Draw a filled blue rectangle in WC */
  wdCanvasBox(canvas, 0.20, 0.30, 0.40, 0.50);
  cdCanvasForeground(canvas, CD_RED);
  /* Draw the diagonal of that rectangle in WC */
  wdCanvasLine(canvas, 0.20, 0.40, 0.30, 0.50);

//  wdVectorTextDirection(0, 0, 1, 1);
  /* Prepare Vector Text in WC. */
  wdCanvasVectorCharSize(canvas, 0.07);

//  wdVectorText(0.1, 0.4, "ñç áéíóú àèìòù âêîôû äëïöü");
//  wdVectorText(0.1, 0.2, "ÑÇ ÁÉÍÓÚ ÀÈÌÒÙ ÂÊÎÔÛ ÄËÏÖÜ");
  //{
  //  int i;
  //  char t[2];
  //  char s[10];
  //  int x = 20;
  //  int y = 0;
  //  t[1] = 0;
  //  for (i = 0; i < 256; i++)
  //  {
  //    int dx = 90;
  //    t[0] = (char)i;
  //    sprintf(s, "%d", i);
  //    cdText(x, y, s);
  //    cdText(x+dx, y, t);
  //    cdVectorText(x+2*dx, y, t);
  //    
  //    x += 3*dx + 2*dx/3;
  //    if ((i+1) % 7 == 0)
  //    {
  //      x = 20;
  //      y += 90;
  //    }

  //  }
  //}

  /* Draw vector text, and draw its bounding box. 
     We also use this text to show when we are using a contextplus driver. */
  {
    double rect[8];
    cdCanvasForeground(canvas, CD_RED);
    if (contextplus)
      wdCanvasGetVectorTextBounds(canvas, "WDj-Plus", 0.25, 0.35, rect);
    else
      wdCanvasGetVectorTextBounds(canvas, "WDj", 0.25, 0.35, rect);
    cdCanvasBegin(canvas, CD_CLOSED_LINES);
    wdCanvasVertex(canvas, rect[0], rect[1]);
    wdCanvasVertex(canvas, rect[2], rect[3]);
    wdCanvasVertex(canvas, rect[4], rect[5]);
    wdCanvasVertex(canvas, rect[6], rect[7]);
    cdCanvasEnd(canvas);

    cdCanvasLineWidth(canvas, 2);
    cdCanvasLineStyle(canvas, CD_CONTINUOUS);
    if (contextplus)
      wdCanvasVectorText(canvas, 0.25, 0.35, "WDj-Plus");
    else
      wdCanvasVectorText(canvas, 0.25, 0.35, "WDj");
    cdCanvasLineWidth(canvas, 1);
  }

  /* Draw a filled path at center-right (looks like a weird fish). 
     Notice that in PDF the arc is necessarily a circle arc, and not an ellipse. */
  cdCanvasForeground(canvas, CD_GREEN);
  cdCanvasBegin(canvas, CD_PATH);
  cdCanvasPathSet(canvas, CD_PATH_MOVETO);
  cdCanvasVertex(canvas, w/2 + 200, h/2);
  cdCanvasPathSet(canvas, CD_PATH_LINETO);
  cdCanvasVertex(canvas, w/2 + 230, h/2 + 50);
  cdCanvasPathSet(canvas, CD_PATH_LINETO);
  cdCanvasVertex(canvas, w/2 + 250, h/2 + 50);
  cdCanvasPathSet(canvas, CD_PATH_CURVETO);
  cdCanvasVertex(canvas, w/2+150+150, h/2+200-50); /* control point for start */
  cdCanvasVertex(canvas, w/2+150+180, h/2+250-50); /* control point for end */
  cdCanvasVertex(canvas, w/2+150+180, h/2+200-50); /* end point */
  cdCanvasPathSet(canvas, CD_PATH_CURVETO);
  cdCanvasVertex(canvas, w/2+150+180, h/2+150-50); 
  cdCanvasVertex(canvas, w/2+150+150, h/2+100-50); 
  cdCanvasVertex(canvas, w/2+150+300, h/2+100-50); 
  cdCanvasPathSet(canvas, CD_PATH_LINETO);
  cdCanvasVertex(canvas, w/2+150+300, h/2-50);
  cdCanvasPathSet(canvas, CD_PATH_ARC);
  cdCanvasVertex(canvas, w/2+300, h/2);  /* center */
  cdCanvasVertex(canvas, 200, 100);  /* width, height */
  cdCanvasVertex(canvas, -30*1000, -170*1000);  /* start angle, end angle (degrees / 1000) */
//  cdCanvasPathSet(canvas, CD_PATH_CLOSE);
//  cdCanvasPathSet(canvas, CD_PATH_STROKE);
  cdCanvasPathSet(canvas, CD_PATH_FILL);
//  cdCanvasPathSet(canvas, CD_PATH_FILLSTROKE);
  cdCanvasEnd(canvas);

  /* Draw 3 pixels at center left. */
  cdCanvasPixel(canvas, 10, h/2+0, CD_RED);
  cdCanvasPixel(canvas, 11, h/2+1, CD_GREEN);
  cdCanvasPixel(canvas, 12, h/2+2, CD_BLUE);

  /* Draw 4 mark types, distributed near each corner.  */
  cdCanvasForeground(canvas, CD_RED);
  cdCanvasMarkSize(canvas, 30);
  cdCanvasMarkType(canvas, CD_PLUS);
  cdCanvasMark(canvas, 200, 200);
  cdCanvasMarkType(canvas, CD_CIRCLE);
  cdCanvasMark(canvas, w - 200, 200);
  cdCanvasMarkType(canvas, CD_HOLLOW_CIRCLE);
  cdCanvasMark(canvas, 200, h - 200);
  cdCanvasMarkType(canvas, CD_DIAMOND);
  cdCanvasMark(canvas, w - 200, h - 200);

  /* Draw all the line style possibilities at bottom. 
     Notice that they have some small differences between drivers. */
  cdCanvasLineWidth(canvas, 1);
  cdCanvasLineStyle(canvas, CD_CONTINUOUS);
  cdCanvasLine(canvas, 0, 10, w, 10);
  cdCanvasLineStyle(canvas, CD_DASHED);
  cdCanvasLine(canvas, 0, 20, w, 20);
  cdCanvasLineStyle(canvas, CD_DOTTED);
  cdCanvasLine(canvas, 0, 30, w, 30);
  cdCanvasLineStyle(canvas, CD_DASH_DOT);
  cdCanvasLine(canvas, 0, 40, w, 40);
  cdCanvasLineStyle(canvas, CD_DASH_DOT_DOT);
  cdCanvasLine(canvas, 0, 50, w, 50);

  /* Draw all the hatch style possibilities in the top-left corner.
     Notice that they have some small differences between drivers. */
  cdCanvasHatch(canvas, CD_VERTICAL); 
  cdCanvasBox(canvas, 0, 50, h - 60, h);
  cdCanvasHatch(canvas, CD_FDIAGONAL); 
  cdCanvasBox(canvas, 50, 100, h - 60, h);
  cdCanvasHatch(canvas, CD_BDIAGONAL); 
  cdCanvasBox(canvas, 100, 150, h - 60, h);
  cdCanvasHatch(canvas, CD_CROSS); 
  cdCanvasBox(canvas, 150, 200, h - 60, h);
  cdCanvasHatch(canvas, CD_HORIZONTAL); 
  cdCanvasBox(canvas, 200, 250, h - 60, h);
  cdCanvasHatch(canvas, CD_DIAGCROSS); 
  cdCanvasBox(canvas, 250, 300, h - 60, h);

  /* Draw 4 regions, in diamond shape,
     at top, bottom, left, right, 
     using different interior styles. */

  /* At top, not filled polygon, notice that the last line style is used. */
  cdCanvasBegin(canvas, CD_CLOSED_LINES);
  cdCanvasVertex(canvas, w/2, h - 100); 
  cdCanvasVertex(canvas, w/2 + 50, h - 150); 
  cdCanvasVertex(canvas, w/2, h - 200); 
  cdCanvasVertex(canvas, w/2 - 50, h - 150); 
  cdCanvasEnd(canvas);

  /* At left, hatch filled polygon */
  cdCanvasHatch(canvas, CD_DIAGCROSS); 
  cdCanvasBegin(canvas, CD_FILL);
  cdCanvasVertex(canvas, 100, h/2); 
  cdCanvasVertex(canvas, 150, h/2 + 50); 
  cdCanvasVertex(canvas, 200, h/2); 
  cdCanvasVertex(canvas, 150, h/2 - 50); 
  cdCanvasEnd(canvas);

  /* At right, pattern filled polygon */
  cdCanvasPattern(canvas, STYLE_SIZE, STYLE_SIZE, pattern);
  cdCanvasBegin(canvas, CD_FILL);
  cdCanvasVertex(canvas, w - 100, h/2); 
  cdCanvasVertex(canvas, w - 150, h/2 + 50); 
  cdCanvasVertex(canvas, w - 200, h/2); 
  cdCanvasVertex(canvas, w - 150, h/2 - 50); 
  cdCanvasEnd(canvas);
  
  /* At bottom, stipple filled polygon */
  cdCanvasStipple(canvas, STYLE_SIZE, STYLE_SIZE, stipple);
  cdCanvasBegin(canvas, CD_FILL);
  cdCanvasVertex(canvas, w/2, 100); 
  cdCanvasVertex(canvas, w/2 + 50, 150); 
  cdCanvasVertex(canvas, w/2, 200); 
  cdCanvasVertex(canvas, w/2 - 50, 150); 
  cdCanvasEnd(canvas);

  /* Draw two beziers at bottom-left */
  cdCanvasBegin(canvas, CD_BEZIER);
  cdCanvasVertex(canvas, 100, 100); 
  cdCanvasVertex(canvas, 150, 200); 
  cdCanvasVertex(canvas, 180, 250); 
  cdCanvasVertex(canvas, 180, 200); 
  cdCanvasVertex(canvas, 180, 150); 
  cdCanvasVertex(canvas, 150, 100); 
  cdCanvasVertex(canvas, 300, 100); 
  cdCanvasEnd(canvas);

  /* Initialize the image buffer contents */
//#define IMAGE_SIZE 16
  memset(red, 0xFF, IMAGE_SIZE*IMAGE_SIZE/2);
  memset(green, 0x5F, IMAGE_SIZE*IMAGE_SIZE/2);
  memset(blue, 0x5F, IMAGE_SIZE*IMAGE_SIZE/2);
  memset(red+IMAGE_SIZE*IMAGE_SIZE/2, 0x5F, IMAGE_SIZE*IMAGE_SIZE/2);
  memset(green+IMAGE_SIZE*IMAGE_SIZE/2, 0x8F, IMAGE_SIZE*IMAGE_SIZE/2);
  memset(blue+IMAGE_SIZE*IMAGE_SIZE/2, 0x5F, IMAGE_SIZE*IMAGE_SIZE/2);
  memset(red+IMAGE_SIZE*(IMAGE_SIZE-1), 0, IMAGE_SIZE);
  memset(green+IMAGE_SIZE*(IMAGE_SIZE-1), 0, IMAGE_SIZE);
  memset(blue+IMAGE_SIZE*(IMAGE_SIZE-1), 0, IMAGE_SIZE);
  memset(red, 0, IMAGE_SIZE);
  memset(green, 0, IMAGE_SIZE);
  memset(blue, 0, IMAGE_SIZE);
  {
    int i, offset;
    for (i = 0; i < IMAGE_SIZE; i++)
    {
      offset = i*IMAGE_SIZE;
      red[offset] = 0;
      green[offset] = 0;
      blue[offset] = 0;
      red[offset+IMAGE_SIZE-1] = 0;
      green[offset+IMAGE_SIZE-1] = 0;
      blue[offset+IMAGE_SIZE-1] = 0;
    }
  }

  //cdSetAttribute("ANTIALIAS", "0");
//  cdGetImageRGB(red, green, blue, w/2 - 50, h/2-50, 100, 100);
//  cdPutImageRectRGB(14, 13, red, green, blue, -20, -15, 649, 603, 0, 13, 0, 12);
//  cdPutImageRectRGB(16, 16, red, green, blue, 10, 10, 608, 608, 5, 10, 5, 10);
//  cdPutImageRectRGB(16, 16, red, green, blue, 10, 10, 64, 64, 5, 10, 5, 10);

//  cdPutImageRGB(IMAGE_SIZE, IMAGE_SIZE, red, green, blue, 100, h - 200, IMAGE_SIZE, IMAGE_SIZE);
//  cdPutImageRGBA(IMAGE_SIZE, IMAGE_SIZE, red, green, blue, alpha, 100, h - 200, IMAGE_SIZE, IMAGE_SIZE);
//  cdPutImageRGB(IMAGE_SIZE, IMAGE_SIZE, red, green, blue, w - 400, h - 310, 3*IMAGE_SIZE, 3*IMAGE_SIZE);
  /* Draw the image on the top-right corner but increasing its actual size, and uses its full area */
  cdCanvasPutImageRectRGBA(canvas, IMAGE_SIZE, IMAGE_SIZE, red, green, blue, alpha, w - 400, h - 310, 3*IMAGE_SIZE, 3*IMAGE_SIZE, 0, 0, 0, 0);

  cdCanvasSetAttribute(canvas, "ROTATE", NULL);
  if (use_transform)
    cdCanvasTransform(canvas, NULL);
  cdCanvasClip(canvas, CD_CLIPOFF);
}