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Diffstat (limited to 'PIL/ImageWin.py')
| -rw-r--r-- | PIL/ImageWin.py | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/PIL/ImageWin.py b/PIL/ImageWin.py deleted file mode 100644 index 13c56b9..0000000 --- a/PIL/ImageWin.py +++ /dev/null @@ -1,215 +0,0 @@ -# -# The Python Imaging Library. -# $Id: ImageWin.py 2662 2006-03-21 22:41:02Z fredrik $ -# -# 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. -# - -import Image - -## -# The <b>ImageWin</b> module contains support to create and display -# images under Windows 95/98, NT, 2000 and later. - -class HDC: - def __init__(self, dc): - self.dc = dc - def __int__(self): - return self.dc - -class HWND: - def __init__(self, wnd): - self.wnd = wnd - def __int__(self): - return self.wnd - -## -# Create 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 <b>palette</b> method upon certain events from Windows. - -class Dib: - - ## - # Create Windows bitmap. - # - # @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) - - ## - # Copy the bitmap contents to a device context. - # - # @param handle Device context (HDC), cast to a Python integer, - # or a HDC or HWND instance. In PythonWin, you can use the - # <b>GetHandleAttrib</b> method of the <b>CDC</b> class to get - # a suitable handle. - - def expose(self, 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): - 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 - - ## - # Installs the palette associated with the image in the - # given device context. - # <p> - # This method should be called upon <b>QUERYNEWPALETTE</b> - # and <b>PALETTECHANGED</b> 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). - - def query_palette(self, handle): - 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 - - ## - # 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. If None is given instead of a - # tuple, all of the image is assumed. - - def paste(self, im, box=None): - 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) - - ## - # Load display memory contents from string buffer. - # - # @param buffer A string buffer containing display data (usually - # data returned from <b>tostring</b>) - - def fromstring(self, buffer): - return self.image.fromstring(buffer) - - ## - # Copy display memory contents to string buffer. - # - # @return A string buffer containing display data. - - def tostring(self): - return self.image.tostring() - - -## -# Create a Window with the given title size. - -class Window: - - 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 apply(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() - -## -# Create an image window which displays the given image. - -class ImageWindow(Window): - - def __init__(self, image, title="PIL"): - if not isinstance(image, Dib): - image = Dib(image) - self.image = image - width, height = image.size - Window.__init__(self, title, width=width, height=height) - - def ui_handle_repair(self, dc, x0, y0, x1, y1): - self.image.draw(dc, (x0, y0, x1, y1)) |