xref: /aosp_15_r20/external/skia/docs/examples/Matrix_isIdentity.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Matrix_isIdentity, 256, 256, true, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     SkMatrix matrix;
7*c8dee2aaSAndroid Build Coastguard Worker     matrix.setAll(1, 0, 0,   0, 1, 0,    0, 0, 1);
8*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("is identity: %s\n", matrix.isIdentity() ? "true" : "false");
9*c8dee2aaSAndroid Build Coastguard Worker     matrix.setAll(1, 0, 0,   0, 1, 0,    0, 0, 2);
10*c8dee2aaSAndroid Build Coastguard Worker     SkDebugf("is identity: %s\n", matrix.isIdentity() ? "true" : "false");
11*c8dee2aaSAndroid Build Coastguard Worker }
12*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
13