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Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/ImageWin.py')
| -rw-r--r-- | env/lib/python3.10/site-packages/PIL/ImageWin.py | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/ImageWin.py b/env/lib/python3.10/site-packages/PIL/ImageWin.py deleted file mode 100644 index ca9b14c..0000000 --- a/env/lib/python3.10/site-packages/PIL/ImageWin.py +++ /dev/null @@ -1,230 +0,0 @@ -# -# The Python Imaging Library. -# $Id$ -# -# a Windows DIB display interface -# -# History: -# 1996-05-20 fl Created -# 1996-09-20 fl Fixed subregion exposure -# 1997-09-21 fl Added draw primitive (for tzPrint) -# 2003-05-21 fl Added experimental Window/ImageWindow classes -# 2003-09-05 fl Added fromstring/tostring methods -# -# Copyright (c) Secret Labs AB 1997-2003. -# Copyright (c) Fredrik Lundh 1996-2003. -# -# See the README file for information on usage and redistribution. -# - -from . import Image - - -class HDC: - """ - Wraps an HDC integer. The resulting object can be passed to the - :py:meth:`~PIL.ImageWin.Dib.draw` and :py:meth:`~PIL.ImageWin.Dib.expose` - methods. - """ - - def __init__(self, dc): - self.dc = dc - - def __int__(self): - return self.dc - - -class HWND: - """ - Wraps an HWND integer. The resulting object can be passed to the - :py:meth:`~PIL.ImageWin.Dib.draw` and :py:meth:`~PIL.ImageWin.Dib.expose` - methods, instead of a DC. - """ - - def __init__(self, wnd): - self.wnd = wnd - - def __int__(self): - return self.wnd - - -class Dib: - """ - A Windows bitmap with the given mode and size. The mode can be one of "1", - "L", "P", or "RGB". - - If the display requires a palette, this constructor creates a suitable - palette and associates it with the image. For an "L" image, 128 greylevels - are allocated. For an "RGB" image, a 6x6x6 colour cube is used, together - with 20 greylevels. - - To make sure that palettes work properly under Windows, you must call the - ``palette`` method upon certain events from Windows. - - :param image: Either a PIL image, or a mode string. If a mode string is - used, a size must also be given. The mode can be one of "1", - "L", "P", or "RGB". - :param size: If the first argument is a mode string, this - defines the size of the image. - """ - - def __init__(self, image, size=None): - if hasattr(image, "mode") and hasattr(image, "size"): - mode = image.mode - size = image.size - else: - mode = image - image = None - if mode not in ["1", "L", "P", "RGB"]: - mode = Image.getmodebase(mode) - self.image = Image.core.display(mode, size) - self.mode = mode - self.size = size - if image: - self.paste(image) - - def expose(self, handle): - """ - Copy the bitmap contents to a device context. - - :param handle: Device context (HDC), cast to a Python integer, or an - HDC or HWND instance. In PythonWin, you can use - ``CDC.GetHandleAttrib()`` to get a suitable handle. - """ - if isinstance(handle, HWND): - dc = self.image.getdc(handle) - try: - result = self.image.expose(dc) - finally: - self.image.releasedc(handle, dc) - else: - result = self.image.expose(handle) - return result - - def draw(self, handle, dst, src=None): - """ - Same as expose, but allows you to specify where to draw the image, and - what part of it to draw. - - The destination and source areas are given as 4-tuple rectangles. If - the source is omitted, the entire image is copied. If the source and - the destination have different sizes, the image is resized as - necessary. - """ - if not src: - src = (0, 0) + self.size - if isinstance(handle, HWND): - dc = self.image.getdc(handle) - try: - result = self.image.draw(dc, dst, src) - finally: - self.image.releasedc(handle, dc) - else: - result = self.image.draw(handle, dst, src) - return result - - def query_palette(self, handle): - """ - Installs the palette associated with the image in the given device - context. - - This method should be called upon **QUERYNEWPALETTE** and - **PALETTECHANGED** events from Windows. If this method returns a - non-zero value, one or more display palette entries were changed, and - the image should be redrawn. - - :param handle: Device context (HDC), cast to a Python integer, or an - HDC or HWND instance. - :return: A true value if one or more entries were changed (this - indicates that the image should be redrawn). - """ - if isinstance(handle, HWND): - handle = self.image.getdc(handle) - try: - result = self.image.query_palette(handle) - finally: - self.image.releasedc(handle, handle) - else: - result = self.image.query_palette(handle) - return result - - def paste(self, im, box=None): - """ - Paste a PIL image into the bitmap image. - - :param im: A PIL image. The size must match the target region. - If the mode does not match, the image is converted to the - mode of the bitmap image. - :param box: A 4-tuple defining the left, upper, right, and - lower pixel coordinate. See :ref:`coordinate-system`. If - None is given instead of a tuple, all of the image is - assumed. - """ - im.load() - if self.mode != im.mode: - im = im.convert(self.mode) - if box: - self.image.paste(im.im, box) - else: - self.image.paste(im.im) - - def frombytes(self, buffer): - """ - Load display memory contents from byte data. - - :param buffer: A buffer containing display data (usually - data returned from :py:func:`~PIL.ImageWin.Dib.tobytes`) - """ - return self.image.frombytes(buffer) - - def tobytes(self): - """ - Copy display memory contents to bytes object. - - :return: A bytes object containing display data. - """ - return self.image.tobytes() - - -class Window: - """Create a Window with the given title size.""" - - def __init__(self, title="PIL", width=None, height=None): - self.hwnd = Image.core.createwindow( - title, self.__dispatcher, width or 0, height or 0 - ) - - def __dispatcher(self, action, *args): - return getattr(self, "ui_handle_" + action)(*args) - - def ui_handle_clear(self, dc, x0, y0, x1, y1): - pass - - def ui_handle_damage(self, x0, y0, x1, y1): - pass - - def ui_handle_destroy(self): - pass - - def ui_handle_repair(self, dc, x0, y0, x1, y1): - pass - - def ui_handle_resize(self, width, height): - pass - - def mainloop(self): - Image.core.eventloop() - - -class ImageWindow(Window): - """Create an image window which displays the given image.""" - - def __init__(self, image, title="PIL"): - if not isinstance(image, Dib): - image = Dib(image) - self.image = image - width, height = image.size - super().__init__(title, width=width, height=height) - - def ui_handle_repair(self, dc, x0, y0, x1, y1): - self.image.draw(dc, (x0, y0, x1, y1)) |