src/c/sk_canvas.cpp

   1 /*
   2  * Copyright 2016 Xamarin Inc.
   3  *
   4  * Use of this source code is governed by a BSD-style license that can be
   5  * found in the LICENSE file.
   6  */
   7
   8 #include "SkCanvas.h"
   9
  10 #include "sk_canvas.h"
  11
  12 #include "sk_types_priv.h"
  13
  14 void sk_canvas_clear(sk_canvas_t* ccanvas, sk_color_t color) {
  15     AsCanvas(ccanvas)->clear(color);
  16 }
  17
  18 void sk_canvas_discard(sk_canvas_t* ccanvas) {
  19     AsCanvas(ccanvas)->discard();
  20 }
  21
  22 int sk_canvas_get_save_count(sk_canvas_t* ccanvas) {
  23     return AsCanvas(ccanvas)->getSaveCount();
  24 }
  25
  26 void sk_canvas_restore_to_count(sk_canvas_t* ccanvas, int saveCount) {
  27     AsCanvas(ccanvas)->restoreToCount(saveCount);
  28 }
  29
  30 void sk_canvas_draw_color(sk_canvas_t* ccanvas, sk_color_t color, sk_xfermode_mode_t cmode) {
  31     AsCanvas(ccanvas)->drawColor(color, (SkXfermode::Mode)cmode);
  32 }
  33
  34 void sk_canvas_draw_points(sk_canvas_t* ccanvas, sk_point_mode_t pointMode, size_t count, const sk_point_t points [], const sk_paint_t* cpaint)
  35 {
  36     AsCanvas(ccanvas)->drawPoints ((SkCanvas::PointMode)pointMode, count, AsPoint(points), *AsPaint(cpaint));
  37 }
  38
  39 void sk_canvas_draw_point(sk_canvas_t* ccanvas, float x, float y, const sk_paint_t* cpaint)
  40 {
  41     AsCanvas(ccanvas)->drawPoint (x, y, *AsPaint(cpaint));
  42 }
  43
  44 void sk_canvas_draw_point_color(sk_canvas_t* ccanvas, float x, float y, sk_color_t color)
  45 {
  46     AsCanvas(ccanvas)->drawPoint (x, y, color);
  47 }
  48
  49 void sk_canvas_draw_line(sk_canvas_t* ccanvas, float x0, float y0, float x1, float y1, sk_paint_t* cpaint)
  50 {
  51     AsCanvas(ccanvas)->drawLine(x0, y0, x1, y1, *AsPaint(cpaint));
  52 }
  53
  54 void sk_canvas_draw_text (sk_canvas_t* ccanvas, const char *text, size_t byteLength, float x, float y, const sk_paint_t* cpaint)
  55 {
  56     AsCanvas(ccanvas)->drawText(text, byteLength, x, y, *AsPaint(cpaint));
  57 }
  58
  59 void sk_canvas_draw_pos_text (sk_canvas_t* ccanvas, const char *text, size_t byteLength, const sk_point_t pos[], const sk_paint_t* cpaint)
  60 {
  61     AsCanvas(ccanvas)->drawPosText(text, byteLength, AsPoint(pos), *AsPaint(cpaint));
  62 }
  63
  64 void sk_canvas_draw_text_on_path (sk_canvas_t* ccanvas, const char *text, size_t byteLength, const sk_path_t* path,
  65                   float hOffset, float vOffset, const sk_paint_t* cpaint)
  66 {
  67     AsCanvas(ccanvas)->drawTextOnPathHV(text, byteLength, AsPath(*path), hOffset, vOffset, *AsPaint(cpaint));
  68 }
  69
  70 void sk_canvas_draw_bitmap(sk_canvas_t* ccanvas, const sk_bitmap_t* cbitmap, float x, float y, const sk_paint_t* cpaint)
  71 {
  72     AsCanvas(ccanvas)->drawBitmap(*AsBitmap(cbitmap), x, y, AsPaint(cpaint));
  73 }
  74
  75 void sk_canvas_draw_bitmap_rect(sk_canvas_t* ccanvas, const sk_bitmap_t* cbitmap, const sk_rect_t* csrcR, const sk_rect_t* cdstR, const sk_paint_t* cpaint)
  76 {
  77     SkCanvas* canvas = AsCanvas(ccanvas);
  78     const SkBitmap& bitmap = *AsBitmap(cbitmap);
  79     const SkRect& dst = AsRect(*cdstR);
  80     const SkPaint* paint = AsPaint(cpaint);
  81
  82     if (csrcR) {
  83         canvas->drawBitmapRect(bitmap, AsRect(*csrcR), dst, paint);
  84     }
  85     else {
  86         canvas->drawBitmapRect(bitmap, dst, paint);
  87     }
  88 }
  89
  90 void sk_canvas_reset_matrix(sk_canvas_t* ccanvas)
  91 {
  92     AsCanvas(ccanvas)->resetMatrix();
  93 }
  94
  95 void sk_canvas_set_matrix(sk_canvas_t* ccanvas, const sk_matrix_t* cmatrix)
  96 {
  97     SkMatrix matrix;
  98     if (cmatrix) {
  99         from_c(cmatrix, &matrix);
 100     }
 101     AsCanvas(ccanvas)->setMatrix(matrix);
 102 }
 103
 104 void sk_canvas_get_total_matrix(sk_canvas_t* ccanvas, sk_matrix_t* cmatrix)
 105 {
 106     SkMatrix matrix = AsCanvas(ccanvas)->getTotalMatrix();
 107     from_sk(&matrix, cmatrix);
 108 }
 109
 110 void sk_canvas_draw_round_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect, float rx, float ry, const sk_paint_t* cpaint) {
 111     AsCanvas(ccanvas)->drawRoundRect(AsRect(*crect), rx, ry, AsPaint(*cpaint));
 112 }
 113
 114 void sk_canvas_clip_rect_with_operation(sk_canvas_t* ccanvas, const sk_rect_t* crect, sk_region_op_t op, bool doAA) {
 115     AsCanvas(ccanvas)->clipRect(AsRect(*crect), (SkRegion::Op)op, doAA);
 116 }
 117
 118 void sk_canvas_clip_path_with_operation(sk_canvas_t* ccanvas, const sk_path_t* cpath, sk_region_op_t op, bool doAA) {
 119     AsCanvas(ccanvas)->clipPath(AsPath(*cpath), (SkRegion::Op)op, doAA);
 120 }
 121
 122 bool sk_canvas_get_clip_bounds(sk_canvas_t* ccanvas, sk_rect_t* cbounds) {
 123     return AsCanvas(ccanvas)->getClipBounds(AsRect(cbounds));
 124 }
 125
 126 bool sk_canvas_get_clip_device_bounds(sk_canvas_t* ccanvas, sk_irect_t* cbounds) {
 127     return AsCanvas(ccanvas)->getClipDeviceBounds(AsIRect(cbounds));
 128 }
 129
 130 int sk_canvas_save(sk_canvas_t* ccanvas) {
 131     return AsCanvas(ccanvas)->save();
 132 }
 133
 134 int sk_canvas_save_layer(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
 135     return AsCanvas(ccanvas)->saveLayer(AsRect(crect), AsPaint(cpaint));
 136 }
 137
 138 void sk_canvas_restore(sk_canvas_t* ccanvas) {
 139     AsCanvas(ccanvas)->restore();
 140 }
 141
 142 void sk_canvas_translate(sk_canvas_t* ccanvas, float dx, float dy) {
 143     AsCanvas(ccanvas)->translate(dx, dy);
 144 }
 145
 146 void sk_canvas_scale(sk_canvas_t* ccanvas, float sx, float sy) {
 147     AsCanvas(ccanvas)->scale(sx, sy);
 148 }
 149
 150 void sk_canvas_rotate_degrees(sk_canvas_t* ccanvas, float degrees) {
 151     AsCanvas(ccanvas)->rotate(degrees);
 152 }
 153
 154 void sk_canvas_rotate_radians(sk_canvas_t* ccanvas, float radians) {
 155     AsCanvas(ccanvas)->rotate(SkRadiansToDegrees(radians));
 156 }
 157
 158 void sk_canvas_skew(sk_canvas_t* ccanvas, float sx, float sy) {
 159     AsCanvas(ccanvas)->skew(sx, sy);
 160 }
 161
 162 void sk_canvas_concat(sk_canvas_t* ccanvas, const sk_matrix_t* cmatrix) {
 163     SkASSERT(cmatrix);
 164     SkMatrix matrix;
 165     from_c(cmatrix, &matrix);
 166     AsCanvas(ccanvas)->concat(matrix);
 167 }
 168
 169 void sk_canvas_clip_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect) {
 170     AsCanvas(ccanvas)->clipRect(AsRect(*crect));
 171 }
 172
 173 void sk_canvas_clip_path(sk_canvas_t* ccanvas, const sk_path_t* cpath) {
 174     AsCanvas(ccanvas)->clipPath(AsPath(*cpath));
 175 }
 176
 177 void sk_canvas_draw_paint(sk_canvas_t* ccanvas, const sk_paint_t* cpaint) {
 178     AsCanvas(ccanvas)->drawPaint(AsPaint(*cpaint));
 179 }
 180
 181 void sk_canvas_draw_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
 182     AsCanvas(ccanvas)->drawRect(AsRect(*crect), AsPaint(*cpaint));
 183 }
 184
 185 void sk_canvas_draw_circle(sk_canvas_t* ccanvas, float cx, float cy, float rad,
 186                            const sk_paint_t* cpaint) {
 187     AsCanvas(ccanvas)->drawCircle(cx, cy, rad, AsPaint(*cpaint));
 188 }
 189
 190 void sk_canvas_draw_oval(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
 191     AsCanvas(ccanvas)->drawOval(AsRect(*crect), AsPaint(*cpaint));
 192 }
 193
 194 void sk_canvas_draw_path(sk_canvas_t* ccanvas, const sk_path_t* cpath, const sk_paint_t* cpaint) {
 195     AsCanvas(ccanvas)->drawPath(AsPath(*cpath), AsPaint(*cpaint));
 196 }
 197
 198 void sk_canvas_draw_image(sk_canvas_t* ccanvas, const sk_image_t* cimage, float x, float y,
 199                           const sk_paint_t* cpaint) {
 200     AsCanvas(ccanvas)->drawImage(AsImage(cimage), x, y, AsPaint(cpaint));
 201 }
 202
 203 void sk_canvas_draw_image_rect(sk_canvas_t* ccanvas, const sk_image_t* cimage,
 204                                const sk_rect_t* csrcR, const sk_rect_t* cdstR,
 205                                const sk_paint_t* cpaint) {
 206     SkCanvas* canvas = AsCanvas(ccanvas);
 207     const SkImage* image = AsImage(cimage);
 208     const SkRect& dst = AsRect(*cdstR);
 209     const SkPaint* paint = AsPaint(cpaint);
 210
 211     if (csrcR) {
 212         canvas->drawImageRect(image, AsRect(*csrcR), dst, paint);
 213     } else {
 214         canvas->drawImageRect(image, dst, paint);
 215     }
 216 }
 217
 218 void sk_canvas_draw_picture(sk_canvas_t* ccanvas, const sk_picture_t* cpicture,
 219                             const sk_matrix_t* cmatrix, const sk_paint_t* cpaint) {
 220     const SkMatrix* matrixPtr = NULL;
 221     SkMatrix matrix;
 222     if (cmatrix) {
 223         from_c(cmatrix, &matrix);
 224         matrixPtr = &matrix;
 225     }
 226     AsCanvas(ccanvas)->drawPicture(AsPicture(cpicture), matrixPtr, AsPaint(cpaint));
 227 }