Description (historical revision 34950)

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Description

CHICKEN Scheme bindings for Imlib2's Xlib API.

For source code, bug reports, and feature requests, visit the github project page.

Authors

John J Foerch

Requirements

Chicken eggs

C headers

imlib2 development headers
X11 development headers (libx11-dev)

API

Datatypes

Image creation procedures return an imlib2 egg `image` record, and image operators expect one of these objects as their first argument. Other datatypes used in this egg are listed here:

XID: Xlib XID (unsigned-long)
Colormap: Xlib Colormap (XID)
Display: Xlib Display* (c-pointer)
Drawable: Xlib Drawable* (XID)
Imlib_Image: Imlib2 image (c-pointer)
Pixmap: Xlib Pixmap (XID)
Screen: int
Visual: Xlib Visual* (c-pointer)
XImage: Xlib XImage (c-pointer)

Context setting

(imlib-context-set-display display)
(imlib-context-disconnect-display)
(imlib-context-set-visual visual)
(imlib-context-set-colormap colormap)
(imlib-context-set-drawable drawable)
(imlib-context-set-mask pixmap)

Context getting

(imlib-context-get-display) => display
(imlib-context-get-visual) => visual
(imlib-context-get-colormap) => colormap
(imlib-context-get-drawable) => drawable
(imlib-context-get-mask) => pixmap
(imlib-get-visual-depth display visual) => int
(imlib-get-best-visual display screen) => (values visual depth)

Rendering functions

(imlib-pixmap-and-mask? object) => bool
(imlib-pixmap-and-mask-pixmap ipm) => pixmap
(imlib-pixmap-and-mask-mask ipm) => pixmap
(imlib-render-pixmaps-for-whole-image img) => <imlib-pixmap-and-mask>
(imlib-render-pixmaps-for-whole-image-at-size img width height) => <imlib-pixmap-and-mask>
(imlib-render-image-on-drawable img x y)
(imlib-render-image-on-drawable-at-size img x y width height)
(imlib-render-image-part-on-drawable-at-size img source-x source-y source-width source-height x y width height)
(imlib-render-get-pixel-color) => DATA32

Creation functions

(imlib-create-image-from-drawable mask-pixmap x y width height need-to-grab-x?) => image
(imlib-create-image-from-ximage image-ximage mask-ximage x y width height need-to-grab-x?) => image
(imlib-create-scaled-image-from-drawable mask-pixmap source-x source-y source-width source-height destination-width destination-height need-to-grab-x? get-mask-from-shape?) => image
(imlib-copy-drawable-to-image img mask-pixmap x y width height destination-x destination-y need-to-grab-x?) => cbool

Rotation / skewing

(imlib-render-image-on-drawable-skewed img source-x source-y source-width source-height destination-x destination-y h-angle-x h-angle-y v-angle-x v-angle-y)
(imlib-render-image-on-drawable-at-angle img source-x source-y source-width source-height destination-x destination-y angle-x angle-y)