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C++ CAIRO_RENDERER函数代码示例

本文整理汇总了C++中CAIRO_RENDERER函数的典型用法代码示例。如果您正苦于以下问题：C++ CAIRO_RENDERER函数的具体用法？C++ CAIRO_RENDERER怎么用？C++ CAIRO_RENDERER使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了CAIRO_RENDERER函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: renderTileCairo

int renderTileCairo(imageObj *img, imageObj *tile, double x, double y) {
    cairo_renderer *r = CAIRO_RENDERER(img);
    cairo_surface_t *im = CAIRO_RENDERER(tile)->surface;
    int w = cairo_image_surface_get_width (im);
    int h = cairo_image_surface_get_height (im);
    cairo_save(r->cr);
    cairo_translate(r->cr, MS_NINT(x-0.5 * w), MS_NINT(y -0.5 * h));
    cairo_set_source_surface(r->cr, im, 0, 0);
    cairo_pattern_set_filter (cairo_get_source (r->cr), CAIRO_FILTER_NEAREST);
    cairo_paint(r->cr);
    cairo_restore(r->cr);
    return MS_SUCCESS;
}
开发者ID:msilex，项目名称:mapserver，代码行数:13，代码来源:mapcairo.c

示例2: mergeRasterBufferCairo

int mergeRasterBufferCairo(imageObj *img, rasterBufferObj *rb, double opacity,
                           int srcX, int srcY, int dstX, int dstY,
                           int width, int height)
{
  cairo_surface_t *src;
  cairo_renderer *r;
  /* not implemented for src,dst,width and height */
  if(rb->type != MS_BUFFER_BYTE_RGBA) {
    return MS_FAILURE;
  }
  r = CAIRO_RENDERER(img);

  src = cairo_image_surface_create_for_data(rb->data.rgba.pixels,CAIRO_FORMAT_ARGB32,
        rb->width,rb->height,
        rb->data.rgba.row_step);

  if(dstX||dstY||srcX||srcY||width!=img->width||height!=img->height) {
    cairo_set_source_surface (r->cr, src, dstX - srcX, dstY - srcY);
    cairo_rectangle (r->cr, dstX, dstY, width, height);
    cairo_fill (r->cr);
  } else {
    cairo_set_source_surface (r->cr,src,0,0);
    cairo_paint_with_alpha(r->cr,opacity);
  }
  cairo_surface_finish(src);
  cairo_surface_destroy(src);
  return MS_SUCCESS;
}
开发者ID:geographika，项目名称:mapserver，代码行数:28，代码来源:mapcairo.c

示例3: renderPixmapSymbolCairo

int renderPixmapSymbolCairo(imageObj *img, double x, double y,symbolObj *symbol,
                            symbolStyleObj *style)
{
  cairo_renderer *r = CAIRO_RENDERER(img);
  cairo_surface_t *im;
  rasterBufferObj *b = symbol->pixmap_buffer;
  assert(b);
  if(!symbol->renderer_cache) {
    symbol->renderer_cache = (void*)createSurfaceFromBuffer(b);
  }
  assert(symbol->renderer_cache);
  im=(cairo_surface_t*)symbol->renderer_cache;
  cairo_save(r->cr);
  if(style->rotation != 0 || style->scale != 1) {
    cairo_translate (r->cr, x,y);
    cairo_rotate (r->cr, -style->rotation);
    cairo_scale  (r->cr, style->scale,style->scale);
    cairo_translate (r->cr, -0.5*b->width, -0.5*b->height);
  } else {
    cairo_translate (r->cr, MS_NINT(x-0.5*b->width),MS_NINT(y-0.5*b->height));
  }
  cairo_set_source_surface (r->cr, im, 0, 0);
  cairo_paint (r->cr);
  cairo_restore(r->cr);
  return MS_SUCCESS;
}
开发者ID:geographika，项目名称:mapserver，代码行数:26，代码来源:mapcairo.c

示例4: renderEllipseSymbolCairo

int renderEllipseSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
                             symbolStyleObj *style)
{
  cairo_renderer *r = CAIRO_RENDERER(img);

  cairo_save(r->cr);
  cairo_set_line_cap(r->cr, CAIRO_LINE_CAP_BUTT);
  cairo_set_line_join(r->cr, CAIRO_LINE_JOIN_MITER);
  cairo_translate(r->cr,x,y);
  cairo_rotate(r->cr,-style->rotation);
  cairo_scale(r->cr,symbol->sizex*style->scale/2,symbol->sizey*style->scale/2);
  cairo_arc (r->cr, 0,0,1, 0, 2 * MS_PI);
  cairo_restore(r->cr);
  if(style->color) {
    msCairoSetSourceColor(r->cr, style->color);
    cairo_fill_preserve(r->cr);
  }
  if(style->outlinewidth > 0) {
    cairo_set_line_width (r->cr, style->outlinewidth);
    msCairoSetSourceColor(r->cr, style->outlinecolor);
    cairo_stroke_preserve(r->cr);
  }
  cairo_new_path(r->cr);
  return MS_SUCCESS;
}
开发者ID:geographika，项目名称:mapserver，代码行数:25，代码来源:mapcairo.c

示例5: renderLineCairo

int renderLineCairo(imageObj *img, shapeObj *p, strokeStyleObj *stroke) {
    int i,j;
    cairo_renderer *r = CAIRO_RENDERER(img);
    assert(stroke->color);
    cairo_new_path(r->cr);
    msCairoSetSourceColor(r->cr,stroke->color);
    for(i=0;i<p->numlines;i++) {
        lineObj *l = &(p->line[i]);
        cairo_move_to(r->cr,l->point[0].x,l->point[0].y);
        for(j=1;j<l->numpoints;j++) {
            cairo_line_to(r->cr,l->point[j].x,l->point[j].y);
        }
    }
    if(stroke->patternlength>0) {
        cairo_set_dash(r->cr,stroke->pattern,stroke->patternlength,0);
    }
    switch(stroke->linecap) {
        case MS_CJC_BUTT:
            cairo_set_line_cap(r->cr,CAIRO_LINE_CAP_BUTT);
            break;
        case MS_CJC_SQUARE:
            cairo_set_line_cap(r->cr,CAIRO_LINE_CAP_SQUARE);
            break;
        case MS_CJC_ROUND:
        case MS_CJC_NONE:
        default:
            cairo_set_line_cap(r->cr,CAIRO_LINE_CAP_ROUND);
    }
    cairo_set_line_width (r->cr, stroke->width);
    cairo_stroke (r->cr);
    if(stroke->patternlength>0) {
        cairo_set_dash(r->cr,stroke->pattern,0,0);
    }
    return MS_SUCCESS;
}
开发者ID:msilex，项目名称:mapserver，代码行数:35，代码来源:mapcairo.c

示例6: renderSVGSymbolCairo

int renderSVGSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
                         symbolStyleObj *style)
{
#ifdef USE_SVG_CAIRO
    cairo_renderer *r = CAIRO_RENDERER(img);
    //double ox=symbol->sizex*0.5,oy=symbol->sizey*0.5;

    svg_cairo_status_t status;
    struct svg_symbol_cache *cache;

    msPreloadSVGSymbol(symbol);
    assert(symbol->renderer_cache);
    cache = symbol->renderer_cache;

    cairo_save(r->cr);
    cairo_translate(r->cr,x,y);
    cairo_scale(r->cr,style->scale,style->scale);

    if (style->rotation != 0) {
        cairo_rotate(r->cr, -style->rotation);
        cairo_translate (r->cr, -(int)(symbol->sizex/2), -(int)(symbol->sizey/2));
    } else
        cairo_translate (r->cr, -(int)(symbol->sizex/2), -(int)(symbol->sizey/2));

    status = svg_cairo_render(cache->svgc, r->cr);
    cairo_restore(r->cr);
    return MS_SUCCESS;

#else
    msSetError(MS_MISCERR, "SVG Symbols requested but is not built with libsvgcairo",
               "renderSVGSymbolCairo()");
    return MS_FAILURE;
#endif
}
开发者ID:embeepea，项目名称:mapserver，代码行数:34，代码来源:mapcairo.c

示例7: startLayerVectorCairo

int startLayerVectorCairo(imageObj *img, mapObj *map, layerObj *layer)
{
  if(layer->compositer && layer->compositer->opacity<100) {
    cairo_renderer *r = CAIRO_RENDERER(img);
    cairo_push_group (r->cr);
  }
  return MS_SUCCESS;
}
开发者ID:geographika，项目名称:mapserver，代码行数:8，代码来源:mapcairo.c

示例8: renderTruetypeSymbolCairo

int renderTruetypeSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
                              symbolStyleObj *s)
{
  int unicode;
  cairo_glyph_t glyph;
  cairo_text_extents_t extents;

  cairo_matrix_t trans;
  double ox,oy;
  cairoCacheData *cache = MS_IMAGE_RENDERER_CACHE(img);
  cairo_renderer *r = CAIRO_RENDERER(img);
  faceCacheObj *face = getFontFace(cache,symbol->full_font_path);

  if(!face) return MS_FAILURE;

  cairo_save(r->cr);
  cairo_set_font_face(r->cr,face->face);
  cairo_set_font_size(r->cr,s->scale*96/72.0);


  msUTF8ToUniChar(symbol->character, &unicode);

  if (face->ftface->charmap &&
    face->ftface->charmap->encoding == FT_ENCODING_MS_SYMBOL)
    unicode |= 0xf000;

  glyph.index = FT_Get_Char_Index(face->ftface, unicode);
  glyph.x=0;
  glyph.y=0;
  cairo_glyph_extents(r->cr,&glyph,1,&extents);
  ox=extents.x_bearing+extents.width/2.;
  oy=extents.y_bearing+extents.height/2.;



  cairo_matrix_init_rotate(&trans,-s->rotation);

  cairo_matrix_transform_point(&trans,&ox,&oy);
  /* cairo_translate(cr,-extents.width/2,-extents.height/2); */

  cairo_translate(r->cr,x-ox,y-oy);
  cairo_rotate(r->cr, -s->rotation);

  cairo_glyph_path(r->cr,&glyph,1);

  if (s->outlinewidth) {
    msCairoSetSourceColor(r->cr, s->outlinecolor);
    cairo_set_line_width(r->cr, s->outlinewidth + 1);
    cairo_stroke_preserve(r->cr);
  }
  if(s->color) {
    msCairoSetSourceColor(r->cr, s->color);
    cairo_fill_preserve(r->cr);
  }
  cairo_new_path(r->cr);
  cairo_restore(r->cr);
  return MS_SUCCESS;
}
开发者ID:lydonchandra，项目名称:MapServer-SpeedUp，代码行数:58，代码来源:mapcairo.c

示例9: renderSVGSymbolCairo

int renderSVGSymbolCairo(imageObj *img, double x, double y, symbolObj *symbol,
                         symbolStyleObj *style) {
#ifdef USE_SVG_CAIRO
    cairo_renderer *r = CAIRO_RENDERER(img);
    //double ox=symbol->sizex*0.5,oy=symbol->sizey*0.5;

    unsigned int svg_width, svg_height;
    svg_cairo_status_t status;
    svg_cairo_t *svgc;
    double scale;

    //use cache for svg surface
    if(!symbol->renderer_cache) {
        status = svg_cairo_create(&svgc);
        status = svg_cairo_parse_buffer(svgc, symbol->svg_text, strlen(symbol->svg_text));
        if (status) {
            msSetError(MS_RENDERERERR, "problem creating cairo svg", "renderSVGSymbolCairo()");
            return MS_FAILURE;
        }
        symbol->renderer_cache = svgc;
    }
    assert(symbol->renderer_cache);
    svgc=(svg_cairo_t *)symbol->renderer_cache;

    svg_cairo_get_size (svgc, &svg_width, &svg_height);

    //scale such that the SVG is rendered at the desired size in pixels
    scale = style->scale;
    /*
    if (style->scale != 1) {
        scale = MS_MIN(style->scale / (double) svg_width,
                   style->scale / (double) svg_height);
    } else {
        scale = style->scale;
    }
    */

    cairo_save(r->cr);
    cairo_translate(r->cr,x,y);
    cairo_scale(r->cr,scale,scale);

    if (style->rotation != 0) {
        cairo_rotate(r->cr, -style->rotation);
        cairo_translate (r->cr, -(int)svg_width/2, -(int)svg_height/2);
    }
    else
        cairo_translate (r->cr, -(int)svg_width/2, -(int)svg_height/2);

    status = svg_cairo_render(svgc, r->cr);
    cairo_restore(r->cr);
    return MS_SUCCESS;

#else
    msSetError(MS_MISCERR, "SVG Symbols requested but is not built with libsvgcairo",
               "renderSVGSymbolCairo()");
    return MS_FAILURE;
#endif
}
开发者ID:netconstructor，项目名称:mapserver，代码行数:58，代码来源:mapcairo.c

示例10: closeLayerVectorCairo

int closeLayerVectorCairo(imageObj *img, mapObj *map, layerObj *layer)
{
  if(layer->compositer && layer->compositer->opacity<100) {
    cairo_renderer *r = CAIRO_RENDERER(img);
    cairo_pop_group_to_source (r->cr);
    cairo_paint_with_alpha (r->cr, layer->compositer->opacity*0.01);
  }
  return MS_SUCCESS;
}
开发者ID:geographika，项目名称:mapserver，代码行数:9，代码来源:mapcairo.c

示例11: saveImageCairo

int saveImageCairo(imageObj *img, FILE *fp, outputFormatObj *format) {
    cairo_renderer *r = CAIRO_RENDERER(img);
    if(!strcasecmp(img->format->driver,"cairo/pdf") || !strcasecmp(img->format->driver,"cairo/svg")) {
        cairo_surface_finish (r->surface);
        fwrite(r->outputStream->data,r->outputStream->size,1,fp);
    } else {
        // not supported
    }
    return MS_SUCCESS;
}
开发者ID:msilex，项目名称:mapserver，代码行数:10，代码来源:mapcairo.c

示例12: renderPolygonTiledCairo

int renderPolygonTiledCairo(imageObj *img, shapeObj *p,  imageObj *tile) {
    int i,j;
    cairo_renderer *r = CAIRO_RENDERER(img);
    cairo_renderer *tileRenderer = CAIRO_RENDERER(tile);
    cairo_pattern_t *pattern = cairo_pattern_create_for_surface(tileRenderer->surface);
    cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
    
    cairo_set_source(r->cr, pattern);
    for (i = 0; i < p->numlines; i++) {
      lineObj *l = &(p->line[i]);
      cairo_move_to(r->cr, l->point[0].x, l->point[0].y);
      for (j = 1; j < l->numpoints; j++) {
        cairo_line_to(r->cr, l->point[j].x, l->point[j].y);
      }
      //cairo_close_path(r->cr);
    }
    cairo_fill(r->cr);
    cairo_pattern_destroy(pattern);
    return MS_SUCCESS;
}
开发者ID:msilex，项目名称:mapserver，代码行数:20，代码来源:mapcairo.c

示例13: saveImageBufferCairo

unsigned char* saveImageBufferCairo(imageObj *img, int *size_ptr, outputFormatObj *format)
{
  cairo_renderer *r = CAIRO_RENDERER(img);
  unsigned char *data;
  assert(!strcasecmp(img->format->driver,"cairo/pdf") || !strcasecmp(img->format->driver,"cairo/svg"));
  cairo_surface_finish (r->surface);
  data = msSmallMalloc(r->outputStream->size);
  memcpy(data,r->outputStream->data,r->outputStream->size);
  *size_ptr = (int)r->outputStream->size;
  return data;
}
开发者ID:geographika，项目名称:mapserver，代码行数:11，代码来源:mapcairo.c

示例14: cairo_renderer_finalize

static void
cairo_renderer_finalize (PinPointRenderer *pp_renderer)
{
  CairoRenderer *renderer = CAIRO_RENDERER (pp_renderer);

  g_free (renderer->path);
  if (renderer->surface)
    cairo_surface_destroy (renderer->surface);
  g_hash_table_unref (renderer->surfaces);
  g_hash_table_unref (renderer->svgs);
  if (renderer->ctx)
    cairo_destroy (renderer->ctx);
}
开发者ID:GNOME，项目名称:pinpoint，代码行数:13，代码来源:pp-cairo.c

示例15: freeImageCairo

int freeImageCairo(imageObj *img) {
    cairo_renderer *r = CAIRO_RENDERER(img);
    if(r) {
        cairo_destroy(r->cr);
        cairo_surface_finish(r->surface);
        cairo_surface_destroy(r->surface);
        if(r->outputStream) {
            msBufferFree(r->outputStream);
            free(r->outputStream);
        }
        free(r);
    }
    return MS_SUCCESS;
}
开发者ID:msilex，项目名称:mapserver，代码行数:14，代码来源:mapcairo.c


注：本文中的CAIRO_RENDERER函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。