[英]Swing and AWT GLCanvas Flickering/Blinkering
我正在使用Swing創建組件的UI和GLCanvas(com.jogamp.opengl.awt.GLCanvas)來創建我的窗口。
問題是下一個問題。
在init狀態下,一切正常,但是當我拖動窗口調整大小時,包含我的GLCanvas的JPanel開始閃爍/閃爍。
閱讀其他主題,我嘗試標志System.setProperty(“sun.awt.noerasebackground”,“true”); 但它不起作用。
覆蓋方法Init從GLCanvas擴展到我的類。
public void init(GLAutoDrawable drawable) {
this.drawable=drawable;
gl = drawable.getGL().getGL2();
//glu = new GLU();
//glut = new GLUT();
gl.setSwapInterval(1);
gl.glClearColor(getClearColor().getRed(),getClearColor().getGreen(),getClearColor().getBlue(), 1.0f);
//*******************************
SetDefaultGLproperty();
System.setProperty("sun.awt.noerasebackground", "true");
System.out.println("PROPERTY ACTIVATE");
//SetDefaultLigthModel();
}
顯示方法:
public void display(GLAutoDrawable drawable) {
try{
//System.out.println("display de jcadcanvas");
//gestion de la vista
if (Scene.view.isSelectionMode || Scene.view.isMouseOver){
//System.out.println("entra");
startPicking( Scene.view.curX,Scene.view.curY);
gl.glMultMatrixf(Scene.view.trackball.getRotMatrix(), 0);
if (Scene!=null) Scene.DrawSceneInSelectionMode(gl);
int r=endPicking(gl);
if (r!=0) {
if (Scene.view.isSelectionMode) {
//System.out.println("select");
Scene.selectionModel.addSelectedEntity(r);
//isSelectionMode=false;
} else
if (Scene.view.isMouseOver) {
Scene.selectionModel.setMouseOverEntity(r);
//isMouseOver=false;
}
}
//isMouseOver=false;
}
Scene.view.isSelectionMode=false;
Scene.view.isMouseOver=false;
//else { //*/*************************************
if (Scene.view.fitView) {
ZoomAll();
Scene.view.fitView=false;
} else
SetOrthoProjection(Scene.view.leftViewVolume, Scene.view.rightViewVolume, Scene.view.bottomViewVolume, Scene.view.topViewVolume, Scene.view.nearViewVolume, Scene.view.farViewVolume);
//System.out.println(Scene.leftViewVolume+" "+Scene.rightViewVolume+" "+Scene.bottomViewVolume+" "+ Scene.topViewVolume+" "+ Scene.nearViewVolume+" "+ Scene.farViewVolume);
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
if (Scene.view.isZoomBox) DrawZoomBox() ; ///caja de zoom
gl.glMultMatrixf(Scene.view.trackball.getRotMatrix(), 0);
/*
if (!Scene.getSelectedNode().isEmpty()){
JAbstractEntity centro=(JAbstractEntity)Scene.getSelectedNode().get(0);
JPoint p=centro.getCentroid();
gl.glTranslated(-p.x, -p.y,-p.z);
}
* */
if (isDrawaxes()) {
DrawAxes(gl);
}
if (Scene!=null) Scene.DrawScene(gl);
//}
} catch(com.jogamp.opengl.GLException e){
}catch(java.util.ConcurrentModificationException e){
}
if (save) save();
}
和重塑方法:
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
//AQUI ESTA EL PROBLEMA DEL RESHAPE
System.out.println(width+"entro"+height);
double left = Scene.view.leftViewVolume;
double right = Scene.view.rightViewVolume;
double bottom = Scene.view.bottomViewVolume;
double top = Scene.view.topViewVolume;
if (width != aWidth) {
System.out.println("ancho");
double magnitud = ((Scene.view.rightViewVolume - Scene.view.leftViewVolume) * (double) height) / (double) width;
magnitud = ((Scene.view.topViewVolume - Scene.view.bottomViewVolume) - magnitud) / 2.0;
left = Scene.view.leftViewVolume;
right = Scene.view.rightViewVolume;
//bottom=topViewVolume-magnitud;
bottom = Scene.view.bottomViewVolume + magnitud;
top = Scene.view.topViewVolume - magnitud;
} else if (height != aHeight) {
System.out.println("alto");
double magnitud = ((Scene.view.topViewVolume - Scene.view.bottomViewVolume) * (double) width) / (double) height;
magnitud = ((Scene.view.rightViewVolume - Scene.view.leftViewVolume) - magnitud) / 2.0;
left = Scene.view.leftViewVolume + magnitud;
right = Scene.view.rightViewVolume - magnitud;
bottom = Scene.view.bottomViewVolume;
top = Scene.view.topViewVolume;
}
aHeight = height;
aWidth = width;
//System.out.println (aHeight+" "+aWidth);
//System.out.println (width +" "+height);
gl.glViewport(0, 0, width, height);
SetOrthoProjectionIsotropic(left, right, bottom, top, Scene.view.nearViewVolume, Scene.view.farViewVolume);
//fitView=true;
}
誰知道任何解決方案?
謝謝你的時間
我正在使用GL2和JOGAMP庫
如果可能,您應該在命令行中設置屬性sun.awt.noerasebackground,這是肯定的。 但是,由於AWT的回歸,這種解決方法不再有效,有一個針對JOGL的錯誤報告,但它無法在JOGL中修復: https ://jogamp.org/bugzilla/show_bug.cgi ? id = 1182
您可以嘗試用GLJPanel替換GLCanvas,但我不確定您是否會獲得更好的結果。
請更准確地了解您的硬件,操作系統,Java版本,JOGL版本(2.3.2?),...
順便說一句,如果你想避免捕獲一些UnsupportedOperationException實例,請用GLU.createGLU(gl)替換glu = new GLU()。
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