cairo

Any suggestions for a simple C++ library I can use to create an image to a specified size, with either a fixed rgb colour value or ideally supporting gradients. Needs to work on Windows and ideally but not required to work on OS X as well. I've found Cairo, but just wondered if there was anything else as it seems quite simple what I require. greyfade Cairo is an exceptional library for this task. If you're thinking it's overkill, I can reassure you that it most definitely is not a bloated or large library. Cairo is meant exactly for what you need it. Note that if you need the ability to set

I'm trying to write simple graphic editor using PyGObject and python 3. I need to draw lines with different color and width using mouse. I found many examples like this but nothing more complex. How do I save drawn image between 'draw' events? Is there incremental way of drawing or do I have to redraw pane on each 'draw' event? I found out that I can save path but how can I save width and colors of drawn lines? Is there way create image outside 'draw' callback and only apply (draw) it inside callback? Here is what I have for now. #!/usr/bin/env python # -*- coding: utf-8 -*- from gi.repository

Configuring cairo-0.12.0... setup.exe: The program pkg-config version >=0.9.0 is required but it could not be found. cabal: Error: some packages failed to install: cairo-0.12.0 failed during the configure step. The exception was: ExitFailure 1 so how can I get pkg-config on windows or how to install cairo then ? Do you have the cairo development files installed? Recall this isn't the same as having a cairo dll! See the Windows section of their download page for binaries . Also, you can run cabal install -v for more verbosity in the error (which you should post if you're still stuck). you need

I am trying to use rsvg in Python 3.2 but I keep getting an import error. I have installed all of the librsvg packages along with cairo. I cannot find anything online about what else to install to get it to work. I did hear that the rsvg module hasn't been updated since 2005 so is it just not compatible with Python 3.2, or is there something else I can try to install it? Alternatively, if rsvg does not work, does anyone have any suggestions for a simple way to display an SVG file through Python (basically just show the image)? EDIT: The error I get is: 'ImportError: No module named rsvg' This

I would like to save the looks of a GTK window, and all the buttons and other widgets it contains to a PNG or PDF file. Cairo supports drawing on such surfaces. Could I somehow ask a GTK widget to draw itself on Cairo surface? A code sample would be much appreciated, since I am a newcomer to both GTK and Cairo. Python is my language of choice. In C, you can put your buttons and widgets in a GtkOffscreenWindow using gtk_widget_reparent() and then use gtk_offscreen_window_get_pixbuf() to render it onto a GdkPixbuf , which you can then save to a file. Sorry I don't have any Python code, but I don

I spent hours this afternoon trying to find a straightforward tutorial for installing PyCairo on Windows. The Cairo project itself does not maintain Windows binaries, they must be dowloaded elsehere (e.g. http://ftp.gnome.org/pub/GNOME/binaries/win32/pycairo/ ). The process is also complicated further apparently by the fact that MSVC is apparently not a supported compiler for PyCairo (although the source patch is simple). See this bug report: https://www.libreoffice.org/bugzilla/show_bug.cgi?id=22940 Can anyone recommend a tutorial for installing PyCairo on Windows? You should try windows

I'm trying to wrap basic function of librsvg with ctypes for Python, but I'm getting a segfault. C: // pycairo excerpt typedef struct { PyObject_HEAD cairo_t *ctx; PyObject *base; /* base object used to create context, or NULL */ } PycairoContext; // librsvg excerpt RsvgHandle * rsvg_handle_new_from_file (const gchar * file_name, GError ** error); // ... gboolean rsvg_handle_render_cairo (RsvgHandle * handle, cairo_t * cr); Python ctypes: from ctypes import * from ctypes import util librsvg = cdll.LoadLibrary('/brew/lib/librsvg-2.2.dylib') libgobject = cdll.LoadLibrary('/brew/lib/libgobject-2