EnhancedWindow

Example Python program EnhancedWindow.py

Modules

• import cvui

Classes

• class EnhancedWindow:

Methods

• def init(self, x, y, width, height, title, minimizable=True):
• def begin(self, frame):
• def end(self):
• def width(self):
• def height(self):
• def setWidth(self, w):
• def setHeight(self, h):
• def isMinimized(self):

Code

Python example

import cvui


class EnhancedWindow:
    def __init__(self, x, y, width, height, title, minimizable=True):
        self.__x = x
        self.__y = y
        self.__width = width
        self.__height = height
        self.__heightNotMinimized = height
        self.__title = title
        self.__deltaY = 0
        self.__deltaX = 0
        self.__isMoving = False
        self.__minimized = False
        self.__minimizable = minimizable

    def begin(self, frame):
        mouseInsideTitleArea = cvui.mouse().inside(
            cvui.Rect(self.__x, self.__y, self.__width, 20))
        self.__height = 20 if self.__minimized else self.__heightNotMinimized

        if self.__isMoving == False and cvui.mouse(cvui.DOWN) and mouseInsideTitleArea:
            self.__deltaX = cvui.mouse().x - self.__x
            self.__deltaY = cvui.mouse().y - self.__y
            self.__isMoving = True

        elif self.__isMoving and cvui.mouse(cvui.IS_DOWN):
            self.__x = cvui.mouse().x - self.__deltaX
            self.__y = cvui.mouse().y - self.__deltaY

        else:
            frameRows, frameCols, frameChannels = frame.shape
            self.__isMoving = False
            self.__x = max(0, self.__x)
            self.__y = max(0, self.__y)
            self.__x = min(frameCols - self.__width, self.__x)
            self.__y = min(frameRows - 20, self.__y)

        cvui.window(frame, self.__x, self.__y, self.__width,
                    self.__height, self.__title)

        if self.__minimizable and cvui.button(frame, self.__x + self.__width - 20, self.__y + 1, 18, 18, '+' if self.__minimized else '-'):
            self.__minimized = not self.__minimized

        cvui.beginRow(frame, self.__x + 10, self.__y + 30,
                      self.__width - 20, self.__height - 20)
        cvui.beginColumn(self.__width - 10, self.__height - 20)

    def end(self):
        cvui.endColumn()
        cvui.endRow()

    def width(self):
        return self.__width

    def height(self):
        return self.__height

    def setWidth(self, w):
        self.__width = w

    def setHeight(self, h):
        self.__height = h
        self.__heightNotMinimized = h

    def isMinimized(self):
        return self.__minimized

Useful Links

• Articles: https://python-commandments.org/
• Python shell: https://bsdnerds.org/learn-python/
• Tutorial: https://pythonprogramminglanguage.com/