Support #6960 ยป paintedSignal.patch
| examples/webgl/PaintWidget.C | ||
|---|---|---|
| 36 | 36 |
} |
| 37 | 37 | |
| 38 | 38 |
PaintWidget::PaintWidget(const bool & useBinaryBuffers): |
| 39 |
WGLWidget(), initialized_(false), useBinaryBuffers_(useBinaryBuffers) |
|
| 39 |
WGLWidget(), |
|
| 40 |
initialized_(false), |
|
| 41 |
painted_(this, "painted"), |
|
| 42 |
useBinaryBuffers_(useBinaryBuffers) |
|
| 40 | 43 |
{
|
| 41 | 44 |
jsMatrix_ = JavaScriptMatrix4x4(); |
| 42 | 45 |
addJavaScriptMatrix4(jsMatrix_); |
| 46 | ||
| 47 |
painted_.connect([]{
|
|
| 48 |
std::cout << "painted!\n"; |
|
| 49 |
}); |
|
| 50 | ||
| 51 |
doJavaScript(jsRef() + ".firstRender=true;"); |
|
| 43 | 52 |
} |
| 44 | 53 | |
| 45 | 54 |
// The initializeGL() captures all JS commands that are to be executed |
| ... | ... | |
| 200 | 209 | |
| 201 | 210 |
// Now draw all the triangles. |
| 202 | 211 |
drawArrays(TRIANGLES, 0, data.size()/6); |
| 212 | ||
| 213 |
injectJS("if(" + jsRef() + ".firstRender){"
|
|
| 214 |
"" + jsRef() + ".firstRender=false;" |
|
| 215 |
"" + painted_.createCall({}) +
|
|
| 216 |
"}"); |
|
| 203 | 217 |
} |
| 204 | 218 | |
| 205 | 219 |
void PaintWidget::setShaders(const std::string &vertexShader, |
| examples/webgl/PaintWidget.h | ||
|---|---|---|
| 8 | 8 |
#define PAINTWIDGET_H_ |
| 9 | 9 | |
| 10 | 10 |
#include <Wt/WGLWidget.h> |
| 11 |
#include <Wt/WJavaScript.h> |
|
| 11 | 12 | |
| 12 | 13 |
using namespace Wt; |
| 13 | 14 | |
| ... | ... | |
| 37 | 38 |
std::string vertexShader_; |
| 38 | 39 |
std::string fragmentShader_; |
| 39 | 40 | |
| 41 |
JSignal<> painted_; |
|
| 42 | ||
| 40 | 43 |
// Program and related variables |
| 41 | 44 |
Program shaderProgram_; |
| 42 | 45 |
AttribLocation vertexPositionAttribute_; |