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comparison dynamin/painting/graphics.d @ 106:acdbb30fee7e

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Port to D2. Most of the effort was dealing with immutable and const.
author Jordan Miner <jminer7@gmail.com>
date Mon, 17 Dec 2012 23:41:50 -0600
parents 5c8c1c2e12c0
children
comparison
equal deleted inserted replaced
105:97997a544ac0 106:acdbb30fee7e
23 private: 23 private:
24 string _family; 24 string _family;
25 int _style = 0; 25 int _style = 0;
26 int _size; 26 int _size;
27 public: 27 public:
28 this(string family_ = "", int size = 10, bool b = false, bool i = false, bool u = false) { 28 this(string family_ = null, int size = 10, bool b = false, bool i = false, bool u = false) {
29 this.family = family_; 29 this.family = family_;
30 this.size = size; 30 this.size = size;
31 bold = b; 31 bold = b;
32 italic = i; 32 italic = i;
33 underline = u; 33 underline = u;
93 protected this() { 93 protected this() {
94 } 94 }
95 Color* opIndex(int x, int y) { 95 Color* opIndex(int x, int y) {
96 return _data + x+y*_width; 96 return _data + x+y*_width;
97 } 97 }
98 static Image load(string file) { 98 static Image load(cstring file) {
99 static if(false) { 99 static if(false) {
100 auto img = new Image; 100 auto img = new Image;
101 lodepng.PngInfo info; 101 lodepng.PngInfo info;
102 img._data = cast(Color*)lodepng.decode32(readFileBytes(file), info); 102 img._data = cast(Color*)lodepng.decode32(readFileBytes(file), info);
103 img._width = info.image.width; 103 img._width = info.image.width;
190 * Therefore, the cap extends past the end point for half the line width. 190 * Therefore, the cap extends past the end point for half the line width.
191 */ 191 */
192 Square 192 Square
193 } 193 }
194 194
195 // cairo_copy_clip_rectangles --> Rectangle[] ClipRectangles() 195 // cairo_copy_clip_rectangles --> Rectangle[] clipRectangles()
196 // cairo_get_dash --> Dashes() 196 // cairo_get_dash --> dashes()
197 // cairo_get_color_stop_rgba --> ColorStops() 197 // cairo_get_color_stop_rgba --> colorStops()
198 /** 198 /**
199 * A Graphics object uses its source to draw on its target. Its target is set 199 * A Graphics object uses its source to draw on its target. Its target is set
200 * when it is created, but its source can be changed whenever desired. For 200 * when it is created, but its source can be changed whenever desired. For
201 * example, for a painting event, the target of a Graphics is the control 201 * example, for a painting event, the target of a Graphics is the control
202 * being painted. In other cases it could be an image. Its source is usually a 202 * being painted. In other cases it could be an image. Its source is usually a
380 } 380 }
381 /** 381 /**
382 * Draws the inside of the current path. 382 * Draws the inside of the current path.
383 * Example: 383 * Example:
384 * ----- 384 * -----
385 * graphics.MoveTo(12.5, 14.5); 385 * graphics.moveTo(12.5, 14.5);
386 * graphics.LineTo(123.5, 22.5); 386 * graphics.lineTo(123.5, 22.5);
387 * graphics.LineTo(139.5, 108.5); 387 * graphics.lineTo(139.5, 108.5);
388 * graphics.LineTo(49.5, 86.5); 388 * graphics.lineTo(49.5, 86.5);
389 * graphics.ClosePath(); 389 * graphics.closePath();
390 * graphics.Fill(); 390 * graphics.fill();
391 * ----- 391 * -----
392 * $(IMAGE ../web/example_fill.png) 392 * $(IMAGE ../web/example_fill.png)
393 */ 393 */
394 void fill() { 394 void fill() {
395 cairo_fill(cr); 395 cairo_fill(cr);
455 assert(f.size != 0); 455 assert(f.size != 0);
456 cairo_set_font_size(cr, f.size); 456 cairo_set_font_size(cr, f.size);
457 cairo_select_font_face(cr, toCharPtr(f.family), f.italic, f.bold); 457 cairo_select_font_face(cr, toCharPtr(f.family), f.italic, f.bold);
458 } 458 }
459 // TODO: if text is all ascii, do fast path with no uniscribe 459 // TODO: if text is all ascii, do fast path with no uniscribe
460 void drawText(string text, double x, double y) { 460 void drawText(cstring text, double x, double y) {
461 auto extents = getFontExtents; 461 auto extents = getFontExtents;
462 cairo_font_extents_t fextents; 462 cairo_font_extents_t fextents;
463 cairo_font_extents(cr, &fextents); 463 cairo_font_extents(cr, &fextents);
464 cairo_move_to(cr, x, y + fextents.ascent); 464 cairo_move_to(cr, x, y + fextents.ascent);
465 cairo_show_text(cr, toCharPtr(text)); // 99% of time spent in show_text 465 cairo_show_text(cr, toCharPtr(text)); // 99% of time spent in show_text
466 checkStatus(); 466 checkStatus();
467 } 467 }
468 /// 468 ///
469 Size getTextExtents(string text) { 469 Size getTextExtents(cstring text) {
470 cairo_text_extents_t textents; 470 cairo_text_extents_t textents;
471 cairo_text_extents(cr, toCharPtr(text), &textents); 471 cairo_text_extents(cr, toCharPtr(text), &textents);
472 cairo_font_extents_t fextents; 472 cairo_font_extents_t fextents;
473 cairo_font_extents(cr, &fextents); 473 cairo_font_extents(cr, &fextents);
474 return Size(textents.x_advance, fextents.height); 474 return Size(textents.x_advance, fextents.height);
543 /// ditto 543 /// ditto
544 void fillRule(GraphicsFillRule rule) { 544 void fillRule(GraphicsFillRule rule) {
545 cairo_set_fill_rule(cr, cast(cairo_fill_rule_t)rule); 545 cairo_set_fill_rule(cr, cast(cairo_fill_rule_t)rule);
546 } 546 }
547 /** 547 /**
548 * The temporary surface created will be the same size as the current clip. To speed up using this function, call Clip() to the area you will be drawing in. 548 * The temporary surface created will be the same size as the current clip. To speed up using this function, call clip() to the area you will be drawing in.
549 */ 549 */
550 void pushGroup() { 550 void pushGroup() {
551 cairo_push_group(cr); 551 cairo_push_group(cr);
552 } 552 }
553 //popGroup() { // TODO: returning a pattern 553 //popGroup() { // TODO: returning a pattern
554 // cairo_pop_group(cr); 554 // cairo_pop_group(cr);
555 //} 555 //}
556 /** 556 /**
557 * Terminates the redirection begun by a call to PushGroup() or 557 * Terminates the redirection begun by a call to pushGroup() or
558 * PushGroupWithContent() and installs the resulting pattern as the 558 * pushGroupWithContent() and installs the resulting pattern as the
559 * source pattern. 559 * source pattern.
560 */ 560 */
561 void popGroupToSource() { 561 void popGroupToSource() {
562 cairo_pop_group_to_source(cr); 562 cairo_pop_group_to_source(cr);
563 checkStatus(); 563 checkStatus();