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Matrix_preSkew.cpp File Reference
#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions

 REG_FIDDLE (Matrix_preSkew, 256, 256, false, 3)
 

Function Documentation

◆ REG_FIDDLE()

REG_FIDDLE ( Matrix_preSkew  ,
256  ,
256  ,
false  ,
 
)

Definition at line 4 of file Matrix_preSkew.cpp.

4 {
5void draw(SkCanvas* canvas) {
7 SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}};
8 SkRect::Make(image->bounds()).toQuad(bitmapBounds);
9 matrix.setPolyToPoly(bitmapBounds, perspect, 4);
10 matrix.preSkew(.5f, 0, image->width() / 2, image->height() / 2);
11 canvas->concat(matrix);
12 canvas->drawImage(image, 0, 0);
13}
14} // END FIDDLE
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition: aaclip.cpp:27
void concat(const SkMatrix &matrix)
Definition: SkCanvas.cpp:1318
void drawImage(const SkImage *image, SkScalar left, SkScalar top)
Definition: SkCanvas.h:1528
int width() const
Definition: SkImage.h:285
int height() const
Definition: SkImage.h:291
SkIRect bounds() const
Definition: SkImage.h:303
unsigned useCenter Optional< SkMatrix > matrix
Definition: SkRecords.h:258
sk_sp< const SkImage > image
Definition: SkRecords.h:269
static SkRect Make(const SkISize &size)
Definition: SkRect.h:669
void toQuad(SkPoint quad[4]) const
Definition: SkRect.cpp:50