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Diffstat (limited to 'python/pyqt/examples3/canvas/canvas.py')
| -rwxr-xr-x | python/pyqt/examples3/canvas/canvas.py | 619 |
1 files changed, 0 insertions, 619 deletions
diff --git a/python/pyqt/examples3/canvas/canvas.py b/python/pyqt/examples3/canvas/canvas.py deleted file mode 100755 index 178a6e66..00000000 --- a/python/pyqt/examples3/canvas/canvas.py +++ /dev/null @@ -1,619 +0,0 @@ -#!/usr/bin/env python - -import sys -from qt import * -from qtcanvas import * -import random - - -True = 1 -False = 0 -butterfly_fn = QString.null -butterflyimg = [] -logo_fn = QString.null -logoimg = [] -bouncy_logo = None -views = [] - - -class ImageItem(QCanvasRectangle): - def __init__(self,img,canvas): - QCanvasRectangle.__init__(self,canvas) - self.imageRTTI=984376 - self.image=img - self.pixmap=QPixmap() - self.setSize(self.image.width(), self.image.height()) - self.pixmap.convertFromImage(self.image, Qt.OrderedAlphaDither); - - def rtti(self): - return self.imageRTTI - - def hit(self,p): - ix = p.x()-self.x() - iy = p.y()-self.y() - if not self.image.valid( ix , iy ): - return False - self.pixel = self.image.pixel( ix, iy ) - return (qAlpha( self.pixel ) != 0) - - def drawShape(self,p): - p.drawPixmap( self.x(), self.y(), self.pixmap ) - - -class NodeItem(QCanvasEllipse): - def __init__(self,canvas): - QCanvasEllipse.__init__(self,6,6,canvas) - self.__inList=[] - self.__outList=[] - self.setPen(QPen(Qt.black)) - self.setBrush(QBrush(Qt.red)) - self.setZ(128) - - def addInEdge(self,edge): - self.__inList.append(edge) - - def addOutEdge(self,edge): - self.__outList.append(edge) - - def moveBy(self,dx,dy): - QCanvasEllipse.moveBy(self,dx,dy) - for each_edge in self.__inList: - each_edge.setToPoint( int(self.x()), int(self.y()) ) - for each_edge in self.__outList: - each_edge.setFromPoint( int(self.x()), int(self.y()) ) - -class EdgeItem(QCanvasLine): - __c=0 - def __init__(self,fromNode, toNode,canvas): - QCanvasLine.__init__(self,canvas) - self.__c=self.__c+1 - self.setPen(QPen(Qt.black)) - self.setBrush(QBrush(Qt.red)) - fromNode.addOutEdge(self) - toNode.addInEdge(self) - self.setPoints(int(fromNode.x()),int(fromNode.y()), int(toNode.x()), int(toNode.y())) - self.setZ(127) - - def setFromPoint(self,x,y): - self.setPoints(x,y,self.endPoint().x(),self.endPoint().y()) - - def setToPoint(self,x,y): - self.setPoints(self.startPoint().x(), self.startPoint().y(),x,y) - - def count(self): - return self.__c - - def moveBy(self,dx,dy): - pass - - -class FigureEditor(QCanvasView): - def __init__(self,c,parent,name,f): - QCanvasView.__init__(self,c,parent,name,f) - self.__moving=0 - self.__moving_start= 0 - - def contentsMousePressEvent(self,e): # QMouseEvent e - point = self.inverseWorldMatrix().map(e.pos()) - ilist = self.canvas().collisions(point) #QCanvasItemList ilist - for each_item in ilist: - if each_item.rtti()==984376: - if not each_item.hit(point): - continue - self.__moving=each_item - self.__moving_start=point - return - self.__moving=0 - - def clear(self): - ilist = self.canvas().allItems() - for each_item in ilist: - if each_item: - each_item.setCanvas(None) - del each_item - self.canvas().update() - - def contentsMouseMoveEvent(self,e): - if self.__moving : - point = self.inverseWorldMatrix().map(e.pos()); - self.__moving.moveBy(point.x() - self.__moving_start.x(),point.y() - self.__moving_start.y()) - self.__moving_start = point - self.canvas().update() - - -class BouncyLogo(QCanvasSprite): - def __init__(self,canvas): - # Make sure the logo exists. - global bouncy_logo - if bouncy_logo is None: - bouncy_logo=QCanvasPixmapArray("qt-trans.xpm") - - QCanvasSprite.__init__(self,None,canvas) - self.setSequence(bouncy_logo) - self.setAnimated(True) - self.initPos() - self.logo_rtti=1234 - - def rtti(self): - return self.logo_rtti - - def initPos(self): - self.initSpeed() - trial=1000 - self.move(random.random()%self.canvas().width(), random.random()%self.canvas().height()) - self.advance(0) - trial=trial-1 - while (trial & (self.xVelocity()==0 )& (self.yVelocity()==0)): - elf.move(random.random()%self.canvas().width(), random.random()%self.canvas().height()) - self.advance(0) - trial=trial-1 - - def initSpeed(self): - speed=4.0 - d=random.random()%1024/1024.0 - self.setVelocity(d*speed*2-speed, (1-d)*speed*2-speed) - - def advance(self,stage): - if stage==0: - vx=self.xVelocity() - vy=self.yVelocity() - if (vx==0.0) & (vy==0.0): - self.initSpeed() - vx=self.xVelocity() - vy=self.yVelocity() - - nx=self.x()+vx - ny=self.y()+vy - - if (nx<0) | (nx >= self.canvas().width()): - vx=-vx - if (ny<0) | (ny >= self.canvas().height()): - vy=-vy - - for bounce in [0,1,2,3]: - l=self.collisions(False) - for hit in l: - if (hit.rtti()==1234) & (hit.collidesWith(self)): - if bounce==0: - vx=-vx - elif bounce==1: - vy=-vy - vx=-vx - elif bounce==2: - vx=-vx - elif bounce==3: - vx=0 - vy=0 - self.setVelocity(vx,vy) - break - - if (self.x()+vx < 0) | (self.x()+vx >= self.canvas().width()): - vx=0 - if (self.y()+vy < 0) | (self.y()+vy >= self.canvas().height()): - vy=0 - - self.setVelocity(vx,vy) - elif stage==1: - QCanvasItem.advance(self,stage) - - -class Main (QMainWindow): - def __init__(self,c,parent,name,f=0): - QMainWindow.__init__(self,parent,name,f) - self.editor=FigureEditor(c,self,name,f) - self.printer=QPrinter() - self.dbf_id=0 - self.canvas=c - self.mainCount=0 - file=QPopupMenu(self.menuBar()) - file.insertItem("&Fill canvas", self.init, Qt.CTRL+Qt.Key_F) - file.insertItem("&Erase canvas", self.clear, Qt.CTRL+Qt.Key_E) - file.insertItem("&New view", self.newView, Qt.CTRL+Qt.Key_N) - file.insertSeparator(); - file.insertItem("&Print", self._print, Qt.CTRL+Qt.Key_P) - file.insertSeparator() - file.insertItem("E&xit", qApp, SLOT("quit()"), Qt.CTRL+Qt.Key_Q) - self.menuBar().insertItem("&File", file) - - edit = QPopupMenu(self.menuBar() ) - edit.insertItem("Add &Circle", self.addCircle, Qt.ALT+Qt.Key_C) - edit.insertItem("Add &Hexagon", self.addHexagon, Qt.ALT+Qt.Key_H) - edit.insertItem("Add &Polygon", self.addPolygon, Qt.ALT+Qt.Key_P) - edit.insertItem("Add Spl&ine", self.addSpline, Qt.ALT+Qt.Key_I) - edit.insertItem("Add &Text", self.addText, Qt.ALT+Qt.Key_T) - edit.insertItem("Add &Line", self.addLine, Qt.ALT+Qt.Key_L) - edit.insertItem("Add &Rectangle", self.addRectangle, Qt.ALT+Qt.Key_R) - edit.insertItem("Add &Sprite", self.addSprite, Qt.ALT+Qt.Key_S) - edit.insertItem("Create &Mesh", self.addMesh, Qt.ALT+Qt.Key_M ) - edit.insertItem("Add &Alpha-blended image", self.addButterfly, Qt.ALT+Qt.Key_A) - self.menuBar().insertItem("&Edit", edit) - - view = QPopupMenu(self.menuBar() ); - view.insertItem("&Enlarge", self.enlarge, Qt.SHIFT+Qt.CTRL+Qt.Key_Plus); - view.insertItem("Shr&ink", self.shrink, Qt.SHIFT+Qt.CTRL+Qt.Key_Minus); - view.insertSeparator(); - view.insertItem("&Rotate clockwise", self.rotateClockwise, Qt.CTRL+Qt.Key_PageDown); - view.insertItem("Rotate &counterclockwise", self.rotateCounterClockwise, Qt.CTRL+Qt.Key_PageUp); - view.insertItem("&Zoom in", self.zoomIn, Qt.CTRL+Qt.Key_Plus); - view.insertItem("Zoom &out", self.zoomOut, Qt.CTRL+Qt.Key_Minus); - view.insertItem("Translate left", self.moveL, Qt.CTRL+Qt.Key_Left); - view.insertItem("Translate right", self.moveR, Qt.CTRL+Qt.Key_Right); - view.insertItem("Translate up", self.moveU, Qt.CTRL+Qt.Key_Up); - view.insertItem("Translate down", self.moveD, Qt.CTRL+Qt.Key_Down); - view.insertItem("&Mirror", self.mirror, Qt.CTRL+Qt.Key_Home); - self.menuBar().insertItem("&View", view) - - self.options = QPopupMenu( self.menuBar() ); - self.dbf_id = self.options.insertItem("Double buffer", self.toggleDoubleBuffer) - self.options.setItemChecked(self.dbf_id, True) - self.menuBar().insertItem("&Options",self.options) - - self.menuBar().insertSeparator(); - - help = QPopupMenu( self.menuBar() ) - help.insertItem("&About", self.help, Qt.Key_F1) - help.insertItem("&About Qt", self.aboutQt, Qt.Key_F2) - help.setItemChecked(self.dbf_id, True) - self.menuBar().insertItem("&Help",help) - - self.statusBar() - - self.setCentralWidget(self.editor) - - self.printer = 0 - self.tb=0 - self.tp=0 - - self.init() - - def init(self): - self.clear() - r=24 - r=r+1 - random.seed(r) - for i in range(self.canvas.width()/56): - self.addButterfly() - for j in range(self.canvas.width()/85): - self.addHexagon() - for k in range(self.canvas.width()/128): - self.addLogo() - - def newView(self): - m=Main(self.canvas,None,"new windiw",Qt.WDestructiveClose) - qApp.setMainWidget(m) - m.show() - qApp.setMainWidget(None) - views.append(m) - - def clear(self): - self.editor.clear() - - def help(self): - QMessageBox.information(None, "PyQt Canvas Example", - "<h3>The PyQt QCanvas classes example</h3><hr>" - "<p>This is the PyQt implementation of " - "Qt canvas example.</p> by Sadi Kose " - "<i>(kose@nuvox.net)</i><hr>" - "<ul>" - "<li> Press ALT-S for some sprites." - "<li> Press ALT-C for some circles." - "<li> Press ALT-L for some lines." - "<li> Drag the objects around." - "<li> Read the code!" - "</ul>","Dismiss") - - def aboutQt(self): - QMessageBox.aboutQt(self,"PyQt Canvas Example") - - def toggleDoubleBuffer(self): - s = not self.options.isItemChecked(self.dbf_id) - self.options.setItemChecked(self.dbf_id,s) - self.canvas.setDoubleBuffering(s) - - def enlarge(self): - self.canvas.resize(self.canvas.width()*4/3, self.canvas.height()*4/3) - - def shrink(self): - self.canvas.resize(self.canvas.width()*3/4, self.canvas.height()*3/4) - - def rotateClockwise(self): - m = self.editor.worldMatrix() - m.rotate( 22.5 ) - self.editor.setWorldMatrix( m ) - - def rotateCounterClockwise(self): - m = self.editor.worldMatrix() - m.rotate( -22.5 ) - self.editor.setWorldMatrix( m ) - - def zoomIn(self): - m = self.editor.worldMatrix() - m.scale( 2.0, 2.0 ) - self.editor.setWorldMatrix( m ) - - def zoomOut(self): - m = self.editor.worldMatrix() - m.scale( 0.5, 0.5 ) - self.editor.setWorldMatrix( m ) - - def mirror(self): - m = self.editor.worldMatrix() - m.scale( -1, 1 ) - self.editor.setWorldMatrix( m ) - - def moveL(self): - m = self.editor.worldMatrix() - m.translate( -16, 0 ) - self.editor.setWorldMatrix( m ) - - def moveR(self): - m = self.editor.worldMatrix() - m.translate( +16, 0 ) - self.editor.setWorldMatrix( m ) - - def moveU(self): - m = self.editor.worldMatrix() - m.translate( 0, -16 ) - self.editor.setWorldMatrix( m ) - - def moveD(self): - m = self.editor.worldMatrix(); - m.translate( 0, +16 ); - self.editor.setWorldMatrix( m ) - - def _print(self): - if not self.printer: - self.printer = QPrinter() - if self.printer.setup(self) : - pp=QPainter(self.printer) - self.canvas.drawArea(QRect(0,0,self.canvas.width(),self.canvas.height()),pp,False) - - def addSprite(self): - i = BouncyLogo(self.canvas) - i.setZ(256*random.random()%256); - i.show(); - - def addButterfly(self): - if butterfly_fn.isEmpty(): - return - if not butterflyimg: - butterflyimg.append(QImage()) - butterflyimg[0].load(butterfly_fn) - butterflyimg.append(QImage()) - butterflyimg[1] = butterflyimg[0].smoothScale( int(butterflyimg[0].width()*0.75), - int(butterflyimg[0].height()*0.75) ) - butterflyimg.append(QImage()) - butterflyimg[2] = butterflyimg[0].smoothScale( int(butterflyimg[0].width()*0.5), - int(butterflyimg[0].height()*0.5) ) - butterflyimg.append(QImage()) - butterflyimg[3] = butterflyimg[0].smoothScale( int(butterflyimg[0].width()*0.25), - int(butterflyimg[0].height()*0.25) ) - - i = ImageItem(butterflyimg[int(4*random.random()%4)],self.canvas) - i.move((self.canvas.width()-butterflyimg[0].width())*random.random()%(self.canvas.width()-butterflyimg[0].width()), - (self.canvas.height()-butterflyimg[0].height())*random.random()%(self.canvas.height()-butterflyimg[0].height())) - i.setZ(256*random.random()%256+250); - i.show() - - def addLogo(self): - if logo_fn.isEmpty(): - return; - if not logoimg: - logoimg.append(QImage()) - logoimg[0].load( logo_fn ) - logoimg.append(QImage()) - logoimg[1] = logoimg[0].smoothScale( int(logoimg[0].width()*0.75), - int(logoimg[0].height()*0.75) ) - logoimg.append(QImage()) - logoimg[2] = logoimg[0].smoothScale( int(logoimg[0].width()*0.5), - int(logoimg[0].height()*0.5) ) - logoimg.append(QImage()) - logoimg[3] = logoimg[0].smoothScale( int(logoimg[0].width()*0.25), - int(logoimg[0].height()*0.25) ); - - i = ImageItem(logoimg[int(4*random.random()%4)],self.canvas) - i.move((self.canvas.width()-logoimg[0].width())*random.random()%(self.canvas.width()-logoimg[0].width()), - (self.canvas.height()-logoimg[0].width())*random.random()%(self.canvas.height()-logoimg[0].width())) - i.setZ(256*random.random()%256+256) - i.show() - - def addCircle(self): - i = QCanvasEllipse(50,50,self.canvas) - i.setBrush( QBrush(QColor(256*random.random()%32*8,256*random.random()%32*8,256*random.random()%32*8) )) - i.move(self.canvas.width()*random.random()%self.canvas.width(),self.canvas.width()*random.random()%self.canvas.height()) - i.setZ(256*random.random()%256) - i.show() - - def addHexagon(self): - i = QCanvasPolygon(self.canvas) - size = canvas.width() / 25 - pa=QPointArray(6) - pa.setPoint(0,QPoint(2*size,0)) - pa.setPoint(1,QPoint(size,-size*173/100)) - pa.setPoint(2,QPoint(-size,-size*173/100)) - pa.setPoint(3,QPoint(-2*size,0)) - pa.setPoint(4,QPoint(-size,size*173/100)) - pa.setPoint(5,QPoint(size,size*173/100)) - i.setPoints(pa) - i.setBrush( QBrush(QColor(256*random.random()%32*8,256*random.random()%32*8,256*random.random()%32*8) )) - i.move(self.canvas.width()*random.random()%self.canvas.width(),self.canvas.width()*random.random()%self.canvas.height()) - i.setZ(256*random.random()%256) - i.show() - - def addPolygon(self): - i = QCanvasPolygon(self.canvas) - size = self.canvas.width()/2 - pa=QPointArray(6) - pa.setPoint(0, QPoint(0,0)) - pa.setPoint(1, QPoint(size,size/5)) - pa.setPoint(2, QPoint(size*4/5,size)) - pa.setPoint(3, QPoint(size/6,size*5/4)) - pa.setPoint(4, QPoint(size*3/4,size*3/4)) - pa.setPoint(5, QPoint(size*3/4,size/4)) - - i.setPoints(pa) - i.setBrush(QBrush( QColor(256*random.random()%32*8,256*random.random()%32*8,256*random.random()%32*8)) ) - i.move(self.canvas.width()*random.random()%self.canvas.width(),self.canvas.width()*random.random()%self.canvas.height()) - i.setZ(256*random.random()%256) - i.show() - - def addSpline(self): - i = QCanvasSpline(self.canvas) - size = canvas.width()/6 - pa=QPointArray(12) - pa.setPoint(0,QPoint(0,0)) - pa.setPoint(1,QPoint(size/2,0)) - pa.setPoint(2,QPoint(size,size/2)) - pa.setPoint(3,QPoint(size,size)) - pa.setPoint(4,QPoint(size,size*3/2)) - pa.setPoint(5,QPoint(size/2,size*2)) - pa.setPoint(6,QPoint(0,size*2)) - pa.setPoint(7,QPoint(-size/2,size*2)) - pa.setPoint(8,QPoint(size/4,size*3/2)) - pa.setPoint(9,QPoint(0,size)) - pa.setPoint(10,QPoint(-size/4,size/2)) - pa.setPoint(11,QPoint(-size/2,0)) - i.setControlPoints(pa) - i.setBrush( QBrush(QColor(256*random.random()%32*8,256*random.random()%32*8,256*random.random()%32*8) )) - i.move(self.canvas.width()*random.random()%self.canvas.width(),self.canvas.width()*random.random()%self.canvas.height()) - i.setZ(256*random.random()%256) - i.show() - - def addText(self): - i = QCanvasText(self.canvas) - i.setText("QCanvasText") - i.move(self.canvas.width()*random.random()%self.canvas.width(),self.canvas.width()*random.random()%self.canvas.height()) - i.setZ(256*random.random()%256) - i.show() - - def addLine(self): - i = QCanvasLine(self.canvas); - i.setPoints( self.canvas.width()*random.random()%self.canvas.width(), self.canvas.width()*random.random()%self.canvas.height(), - self.canvas.width()*random.random()%self.canvas.width(), self.canvas.width()*random.random()%self.canvas.height() ) - i.setPen( QPen(QColor(256*random.random()%32*8,256*random.random()%32*8,256*random.random()%32*8), 6) ) - i.setZ(256*random.random()%256) - i.show() - - def ternary(self,exp,x,y): - if exp: - return x - else: - return y - - def addMesh(self): - x0 = 0; - y0 = 0; - - if not self.tb: - self.tb = QBrush( Qt.red ) - if not self.tp: - self.tp = QPen( Qt.black ) - - nodecount = 0; - - w = self.canvas.width() - h = self.canvas.height() - - dist = 30 - rows = h / dist - cols = w / dist - - #ifndef QT_NO_PROGRESSDIALOG - #progress=QProgressDialog( "Creating mesh...", "Abort", rows, - # self, "progress", True ); - #endif - - lastRow=[] - for c in range(cols): - lastRow.append(NodeItem(self.canvas)) - for j in range(rows): - n = self.ternary(j%2 , cols-1 , cols) - prev = 0; - for i in range(n): - el = NodeItem( self.canvas ) - nodecount=nodecount+1 - r = 20*20*random.random() - xrand = r %20 - yrand = (r/20) %20 - el.move( xrand + x0 + i*dist + self.ternary(j%2 , dist/2 , 0 ), - yrand + y0 + j*dist ); - - if j > 0 : - if i < cols-1 : - EdgeItem( lastRow[i], el, self.canvas ).show() - if j%2 : - EdgeItem( lastRow[i+1], el, self.canvas ).show() - elif i > 0 : - EdgeItem( lastRow[i-1], el, self.canvas ).show() - if prev: - EdgeItem( prev, el, self.canvas ).show() - - if i > 0 : - lastRow[i-1] = prev - prev = el - el.show() - - lastRow[n-1]=prev - #ifndef QT_NO_PROGRESSDIALOG - #progress.setProgress( j ) - #if progress.wasCancelled() : - # break - #endif - - #ifndef QT_NO_PROGRESSDIALOG - #progress.setProgress( rows ) - #endif - #// qDebug( "%d nodes, %d edges", nodecount, EdgeItem::count() ); - - def addRectangle(self): - i = QCanvasRectangle( self.canvas.width()*random.random()%self.canvas.width(), - self.canvas.width()*random.random()%self.canvas.height(), - self.canvas.width()/5,self.canvas.width()/5,self.canvas) - z = 256*random.random()%256 - i.setBrush( QBrush(QColor(z,z,z) )) - i.setPen( QPen(QColor(self.canvas.width()*random.random()%32*8, - self.canvas.width()*random.random()%32*8, - self.canvas.width()*random.random()%32*8), 6) ) - i.setZ(z) - i.show() - - -if __name__=='__main__': - app=QApplication(sys.argv) - - if len(sys.argv) > 1: - butterfly_fn=QString(sys.argv[1]) - else: - butterfly_fn=QString("butterfly.png") - - if len(sys.argv) > 2: - logo_fn = QString(sys.argv[2]) - else: - logo_fn=QString("qtlogo.png") - - canvas=QCanvas(800,600) - canvas.setAdvancePeriod(30) - m=Main(canvas,None,"pyqt canvas example") - m.resize(m.sizeHint()) - - qApp.setMainWidget(m) - m.setCaption("Qt Canvas Example ported to PyQt") - if QApplication.desktop().width() > m.width() + 10 and QApplication.desktop().height() > m.height() + 30: - m.show() - else: - m.showMaximized() - - m.show(); - #// m.help(); - qApp.setMainWidget(None); - - QObject.connect( qApp, SIGNAL("lastWindowClosed()"), qApp, SLOT("quit()") ) - - app.exec_loop() - - # We need to explicitly delete the canvas now (and, therefore, the main - # window beforehand) to make sure that the sprite logo doesn't get garbage - # collected first. - views = [] - del m - del canvas |