Python Canvas.delete方法代码示例

# 需要导入模块: import Canvas [as 别名]
# 或者: from Canvas import delete [as 别名]
class Mozayik(QWidget):
    def __init__(self, parent=None):
        super(Mozayik, self).__init__(parent)

        mainLayout = QHBoxLayout()
        
        #setup button icons
        assets = os.getcwd() + "/assets"
        if os.path.exists(assets):
            os.chdir(assets)
            trash = assets + "/trash.png"
            if os.path.isfile(trash):
                trashIcon = QIcon(QPixmap(trash))
            add = assets + "/plus.png"
            if os.path.isfile(add):
                addIcon = QIcon(QPixmap(add))
            folder = assets + "/folder.png"
            if os.path.isfile(folder):
                folderIcon = QIcon(QPixmap(folder))

        #setup buttons
        self.enterFolderButton = QPushButton(folderIcon, "")
        self.enterFolderButton.clicked.connect(self.enterFolderContact)
        self.addTilesButton = QPushButton(addIcon, "")
        self.addTilesButton.clicked.connect(self.addTilesContact)
        self.deleteButton = QPushButton(trashIcon, "")
        self.deleteButton.clicked.connect(self.deleteContact)

        #layout buttons
        buttonLayout1 = QHBoxLayout()
        buttonLayout1.addWidget(self.enterFolderButton)
        buttonLayout1.addWidget(self.addTilesButton)
        buttonLayout1.addWidget(self.deleteButton)

        #setup image viewer
        scrollView = QScrollArea()
        scrollView.setBackgroundRole(QPalette.Dark)
        self.viewer = Viewer()
        scrollView.setWidget(self.viewer)
        size = QSize(350,600)
        scrollView.setMaximumSize(size)
        #scrollView.setMinimumSize(size)

        #setup mozayik area
        #self.mozayik = QLabel("Area reserved")
        self.mozayik = Canvas()

        #layout main view
        viewLayout1 = QVBoxLayout()
        viewLayout1.addLayout(buttonLayout1)
        viewLayout1.setAlignment(buttonLayout1,Qt.AlignRight)
        viewLayout1.addWidget(scrollView)
        viewLayout1.setAlignment(scrollView,Qt.AlignLeft)
        
        mainLayout.addLayout(viewLayout1)
        mainLayout.addWidget(self.mozayik)

        self.setLayout(mainLayout)
        self.setWindowTitle("Mozayik")

        #print("mozayik size:")
        #print(self.size())

    def enterFolderContact(self):
        self.viewer.openFolder()
    
    def addTilesContact(self):
        self.viewer.addTiles()

    def deleteContact(self):
        self.mozayik.delete()

    def sizeHint(self):
        return self.minimumSize()
        
    def minimumSize(self):
        size = QSize(16,9)
        size.scale(700,700,Qt.KeepAspectRatioByExpanding)
        #print("size hint for mozayik")
        #print(size)
        return size

# 需要导入模块: import Canvas [as 别名]
# 或者: from Canvas import delete [as 别名]
screen.geometry("%dx%d+0+0"%(wd,ht))
canv = Canvas(screen,height=ht,width=wd,background="black")
canv.pack()

# some scale factor to enlarge the animation
scaley = 150
scalex = 140

# define the time
for t in linspace(0.1,0.5,2000):
#    calculate A and B
    expA = map(lambda x: A(x,t),x)
    expB = map(lambda k: B(k,t),k)

#    tranform back the k-room into the real room
    expB = ifft(expB)
#    calculate the time depended hamiltonien
    y = expA*expB*expA
# i took the norm of phi because thr numbers get realy large with t
    y = real(y)/max(abs(real(y)))
# draw the waves with lines
    for i in range(len(y)-1):
        y0=y[i]
        y1=y[i+1]
        x0=x[i]
        x1=x[i+1]
        canv.create_line(scalex*x0+650, 400+scaley*y0, scalex*x1+650, 400+scaley*y1,fill='red')
    canv.update()
    canv.delete(ALL)

screen.mainloop()

# 需要导入模块: import Canvas [as 别名]
# 或者: from Canvas import delete [as 别名]
class Plot(object):
    '''
    A canvas will be created where the selected values will be plotted as lines, with the best fitting scale.
    
    Initial version by:
        Michel Heiniger and Sandra Lang
    
    Latest source code can be found at:
        https://github.com/nebelriss/FluidX
    '''
    
    
    def __init__(self, master, frame, sw, sh):
        '''
        Constructor for the plot area.
        '''
        # initialization of 
        self.sw = sw
        self.sh = sh
        self.frame = frame
        
        # empty value list
        self.value_list = []
        
        # canvas area where the value lines and the coordinate system
        self.canvas = Canvas(self.frame, bg = "white")
        self.canvas.pack(expand = YES, fill = BOTH)
        
        #if the used os is a windows or a mac, they need a factor 1.5 for the y-axis
        if os.name == "nt":
            self.win_osx_factor = 1.5
        elif os.name == "mac":
            self.win_osx_factor = 1.5
            
        # if its a linux machine factor is 1           
        else:
            self.win_osx_factor = 1
        
        
        
    def createCoordSystem(self):
        '''
        This creates the coordinate system with a given max value for x,y axis.
        '''
        # Interval for the numbers 
        self.xInterval = 2
        self.yInterval = 0.2
        
        
        # delete all canvas with the tag "text"
        self.canvas.delete("text")                
        
        
        # draw axis lines
        self.canvas.create_line(self.sw-315, self.sh-150, 50, self.sh-150, fill = "black", width = 1)
        self.canvas.create_line(70, self.sh-130, 70, 70, fill = "black", width = 1)
        
        
        # text for Axis
        y = 'Y-Axis'
        x = 'X-Axis'
        # write the text at the right position
        self.canvas.create_text(70,40, text= y, tag = "text")
        self.canvas.create_text(self.sw-315,self.sh-120, text= x, tag = "text")
        
        
        # numbers for x and y axis
        maximumx = ((self.xMax) + 2) / self.xInterval
        maximumy = ((self.yMax) + 1) / self.yInterval
        
        
        # loop to write the numbers under the axis line and draw the separation lines for the x-axis
        for i in range(int(maximumx)):
            x = 70 + (i * self.dist_x * self.xInterval)
            self.canvas.create_line(x,self.sh-150,x,self.sh-155, width = 2)
            self.canvas.create_text(x,self.sh-140, text='%d'% (i * self.xInterval), anchor=N, tag = "text")   
        
        # loop to write the numbers under the axis line and draw the separation lines for the x-axis      
        for i in range (int(maximumy)):
            y = self.sh-150-(i * self.dist_y * self.yInterval) * self.win_osx_factor  
            self.canvas.create_line(70,y,75,y, width = 2)
            self.canvas.create_text(45,y, text=str((i * self.yInterval)), anchor=W, tag = "text")
        
        
            
    def createline (self, meta, values, idx, sel_idx, colors):
        '''
        Fist the given values are written in a list with the index number of the listbox and the selected items.
        '''
        # remove all lines with the tag "plot"
        self.canvas.delete("plot")
        
        
        # overwrite values with the given index with none
        try:
            self.value_list[idx][1] = None
        except IndexError:
            print "Index Error - List out of range"
  

#.........这里部分代码省略.........

# 需要导入模块: import Canvas [as 别名]
# 或者: from Canvas import delete [as 别名]
class SudokuUI(Frame):
    """
    The Tkinter UI, responsible for drawing the board and accepting user input.
    """
    def __init__(self, parent, game):
        self.game = game
        Frame.__init__(self, parent)
        self.parent = parent

        self.row, self.col = -1, -1

        self.__initUI()

    def __initUI(self):
        self.parent.title("Sudoku")
        self.pack(fill=BOTH)
        self.canvas = Canvas(self,
                             width=WIDTH,
                             height=HEIGHT)
        self.canvas.pack(fill=BOTH, side=TOP)
        clear_button = Button(self,
                              text="Clear answers",
                              command=self.__clear_answers)
        clear_button.pack(fill=BOTH, side=BOTTOM)

        self.__draw_grid()
        self.__draw_puzzle()

        self.canvas.bind("<Button-1>", self.__cell_clicked)
        self.canvas.bind("<Key>", self.__key_pressed)

    def __draw_grid(self):
        """
        Draws grid divided with blue lines into 3x3 squares
        """
        for i in xrange(10):
            color = "blue" if i % 3 == 0 else "gray"

            x0 = MARGIN + i * SIDE
            y0 = MARGIN
            x1 = MARGIN + i * SIDE
            y1 = HEIGHT - MARGIN
            self.canvas.create_line(x0, y0, x1, y1, fill=color)

            x0 = MARGIN
            y0 = MARGIN + i * SIDE
            x1 = WIDTH - MARGIN
            y1 = MARGIN + i * SIDE
            self.canvas.create_line(x0, y0, x1, y1, fill=color)

    def __draw_puzzle(self):
        self.canvas.delete("numbers")
        for i in xrange(9):
            for j in xrange(9):
                answer = self.game.puzzle[i][j]
                if answer != 0:
                    x = MARGIN + j * SIDE + SIDE / 2
                    y = MARGIN + i * SIDE + SIDE / 2
                    original = self.game.start_puzzle[i][j]
                    color = "black" if answer == original else "sea green"
                    self.canvas.create_text(
                        x, y, text=answer, tags="numbers", fill=color
                    )

    def __draw_cursor(self):
        self.canvas.delete("cursor")
        if self.row >= 0 and self.col >= 0:
            x0 = MARGIN + self.col * SIDE + 1
            y0 = MARGIN + self.row * SIDE + 1
            x1 = MARGIN + (self.col + 1) * SIDE - 1
            y1 = MARGIN + (self.row + 1) * SIDE - 1
            self.canvas.create_rectangle(
                x0, y0, x1, y1,
                outline="red", tags="cursor"
            )

    def __draw_victory(self):
        # create a oval (which will be a circle)
        x0 = y0 = MARGIN + SIDE * 2
        x1 = y1 = MARGIN + SIDE * 7
        self.canvas.create_oval(
            x0, y0, x1, y1,
            tags="victory", fill="dark orange", outline="orange"
        )
        # create text
        x = y = MARGIN + 4 * SIDE + SIDE / 2
        self.canvas.create_text(
            x, y,
            text="You win!", tags="victory",
            fill="white", font=("Arial", 32)
        )

    def __cell_clicked(self, event):
        if self.game.game_over:
            return
        x, y = event.x, event.y
        if (MARGIN < x < WIDTH - MARGIN and MARGIN < y < HEIGHT - MARGIN):
            self.canvas.focus_set()

            # get row and col numbers from x,y coordinates
#.........这里部分代码省略.........