added support for colormap and gcontext. added comments.
This commit is contained in:
frese
parent
d91d4b3d74
commit
4f7bde5ba1
|
|
@ -1,5 +1,10 @@
|
|||
;; Author: David Frese
|
||||
|
||||
;; open-display opens the connection to the X Server. It has one optional
|
||||
;; argument: a string or a symbol specifying the name of the display. If it is
|
||||
;; not specified, it defaults to the value of the DISPLAY environment variable.
|
||||
;; See XOpenDisplay.
|
||||
|
||||
(define (open-display . args)
|
||||
(let ((display-name (if (null? args)
|
||||
#f
|
||||
|
|
@ -14,46 +19,51 @@
|
|||
|
||||
(import-lambda-definition %open-display (name) "Open_Display")
|
||||
|
||||
;; for compatibility with elk:
|
||||
;; for compatibility with elk: is that correct?? see error.c
|
||||
(define set-after-function! display-set-after-function!)
|
||||
(define after-function display-after-function)
|
||||
|
||||
;; ...
|
||||
;; display-default-root-window returns the root window of the default screen.
|
||||
;; See DefaultRootWindow.
|
||||
|
||||
(define (display-default-root-window display)
|
||||
(let* ((Xdisplay (display-Xdisplay display))
|
||||
(Xwindow (%default-root-window Xdisplay)))
|
||||
(make-window Xwindow (make-display Xdisplay))))
|
||||
|
||||
;; for compatibility with Elk.
|
||||
(define display-root-window display-default-root-window)
|
||||
|
||||
(import-lambda-definition %default-root-window (Xdisplay)
|
||||
"Display_Default_Root_Window")
|
||||
|
||||
;; ...
|
||||
;; display-default-colormap return the default colormap for allocation on the
|
||||
;; default screen of the specified display. See DefaultColormap.
|
||||
|
||||
(define (display-default-colormap display)
|
||||
(let* ((Xdisplay (display-Xdisplay display))
|
||||
(Xcolormap (%default-colormap Xdisplay)))
|
||||
;** (make-colormap 0 Xdisplay Xcolormap)))
|
||||
#f))
|
||||
(make-colormap Xcolormap display)))
|
||||
|
||||
;; for compatibility with Elk.
|
||||
(define display-colormap display-default-colormap)
|
||||
|
||||
(import-lambda-definition %default-colormap (Xdisplay)
|
||||
"Display_Default_Colormap")
|
||||
|
||||
;; ...
|
||||
;; display-default-gcontext return the default graphics context for the root
|
||||
;; window of the default screen of the specified display. See DefaultGC.
|
||||
|
||||
(define (display-default-gcontext display)
|
||||
(let* ((Xdisplay (display-Xdisplay display))
|
||||
(Xgcontext (%default-gcontext Xdisplay)))
|
||||
;** (make-gcontext 0 Xdisplay Xgcontext)))
|
||||
#f))
|
||||
(make-gcontext Xgcontext display)))
|
||||
|
||||
(import-lambda-definition %default-gcontext (Xdisplay)
|
||||
"Display_Default_Gcontext")
|
||||
|
||||
;; ...
|
||||
;; display-default-depth returns the depth (number of planes) of the default
|
||||
;; root window of the default screen of the specified display. See DefaultDepth.
|
||||
|
||||
(define (display-default-depth display)
|
||||
(let ((Xdisplay (display-Xdisplay display)))
|
||||
|
|
@ -62,7 +72,8 @@
|
|||
(import-lambda-definition %default-depth (Xdisplay)
|
||||
"Display_Default_Depth")
|
||||
|
||||
;; ...
|
||||
;; display-default-screen-number returns the default screen number of the given
|
||||
;; display. See DefaultScreen.
|
||||
|
||||
(define (display-default-screen-number display)
|
||||
(let ((Xdisplay (display-Xdisplay display)))
|
||||
|
|
@ -71,13 +82,15 @@
|
|||
(import-lambda-definition %default-screen-number (Xdisplay)
|
||||
"Display_Default_Screen_Number")
|
||||
|
||||
;; ...
|
||||
|
||||
;; internal function
|
||||
(define (check-screen-number display screen-number)
|
||||
(if (or (< screen-number 0)
|
||||
(>= screen-number (display-screen-count display)))
|
||||
(error "invalid screen number" screen-number)))
|
||||
|
||||
;; display-cells returns the number of entries in the default colormap of the
|
||||
;; specified screen. See DisplayCells.
|
||||
|
||||
(define (display-cells display screen-number)
|
||||
(check-screen-number display screen-number)
|
||||
(%display-cells (display-Xdisplay display) screen-number))
|
||||
|
|
@ -85,7 +98,8 @@
|
|||
(import-lambda-definition %display-cells (Xdisplay screen-number)
|
||||
"Display_Cells")
|
||||
|
||||
;; ...
|
||||
;; display-planes returns the depth of the root window of the specified screen.
|
||||
;; See DisplayPlanes.
|
||||
|
||||
(define (display-planes display screen-number)
|
||||
(check-screen-number display screen-number)
|
||||
|
|
@ -94,7 +108,8 @@
|
|||
(import-lambda-definition %display-planes (Xdisplay screen-number)
|
||||
"Display_Planes")
|
||||
|
||||
;; ...
|
||||
;; display-string returns the name of the display as a string - the same that
|
||||
;; was specified with open-display. See DisplayString.
|
||||
|
||||
(define (display-string display)
|
||||
(%display-string (display-Xdisplay display)))
|
||||
|
|
@ -103,7 +118,7 @@
|
|||
"Display_String")
|
||||
|
||||
;; Display-Vendor returns a pair, whose car is the vendor identification and
|
||||
;; whose cdr is the release number
|
||||
;; whose cdr is the release number. See DisplayVendor.
|
||||
|
||||
(define (display-vendor display)
|
||||
(%display-vendor (display-Xdisplay display)))
|
||||
|
|
@ -120,7 +135,8 @@
|
|||
(import-lambda-definition %display-protocol-version (Xdisplay)
|
||||
"Display_Protocol_Version")
|
||||
|
||||
;; ...
|
||||
;; display-screen-count returns the number of available screen on this display.
|
||||
;; See ScreenCount.
|
||||
|
||||
(define (display-screen-count display)
|
||||
(%display-screen-count (display-Xdisplay display)))
|
||||
|
|
@ -137,7 +153,8 @@
|
|||
(import-lambda-definition %display-image-byte-order (Xdisplay)
|
||||
"Display_Image_Byte_Order")
|
||||
|
||||
;; ...
|
||||
;; display-bitmap-unit returns the size of a bitmap's scanline unit in bits.
|
||||
;; See BitmapUnit.
|
||||
|
||||
(define (display-bitmap-unit display)
|
||||
(%display-bitmap-unit (display-Xdisplay display)))
|
||||
|
|
@ -145,7 +162,8 @@
|
|||
(import-lambda-definition %display-bitmap-unit (Xdisplay)
|
||||
"Display_Bitmap_Unit")
|
||||
|
||||
;; ...
|
||||
;; display-bitmap-bit-order return one the symbols 'lbs-first and 'msb-first.
|
||||
;; See BitmapBitOrder.
|
||||
|
||||
(define (display-bitmap-bit-order display)
|
||||
(%display-bitmap-bit-order (display-Xdisplay display)))
|
||||
|
|
@ -153,8 +171,8 @@
|
|||
(import-lambda-definition %display-bitmap-bit-order (Xdisplay)
|
||||
"Display_Bitmap_Bit_Order")
|
||||
|
||||
;; ...
|
||||
|
||||
;; display-bitmap-pad returns the number of bits that each scanline must be
|
||||
;; padded. See BitmapPad.
|
||||
|
||||
(define (display-bitmap-pad display)
|
||||
(%display-bitmap-pad (display-Xdisplay display)))
|
||||
|
|
@ -162,7 +180,8 @@
|
|||
(import-lambda-definition %display-bitmap-pad (Xdisplay)
|
||||
"Display_Bitmap_Pad")
|
||||
|
||||
;; ...
|
||||
;; display-width (-height) returns the width (height) of the screen in pixels.
|
||||
;; See DisplayWidth (DisplayHeight).
|
||||
|
||||
(define (display-width display)
|
||||
(%display-width (display-Xdisplay display)))
|
||||
|
|
@ -170,15 +189,14 @@
|
|||
(import-lambda-definition %display-width (Xdisplay)
|
||||
"Display_Width")
|
||||
|
||||
;; ...
|
||||
|
||||
(define (display-height display)
|
||||
(%display-height (display-Xdisplay display)))
|
||||
|
||||
(import-lambda-definition %display-height (Xdisplay)
|
||||
"Display_Height")
|
||||
|
||||
;; ...
|
||||
;; display-width-mm (-height-mm) returns the width (height) of the screen in
|
||||
;; millimeters. See DisplayWidthMM (DisplayHeightMM).
|
||||
|
||||
(define (display-width-mm display)
|
||||
(%display-width-mm (display-Xdisplay display)))
|
||||
|
|
@ -186,23 +204,13 @@
|
|||
(import-lambda-definition %display-width-mm (Xdisplay)
|
||||
"Display_Width_Mm")
|
||||
|
||||
;; ...
|
||||
|
||||
(define (display-width-mm display)
|
||||
(%display-width-mm (display-Xdisplay display)))
|
||||
|
||||
(import-lambda-definition %display-width-mm (Xdisplay)
|
||||
"Display_Width_Mm")
|
||||
|
||||
;; ...
|
||||
|
||||
(define (display-height-mm display)
|
||||
(%display-height-mm (display-Xdisplay display)))
|
||||
|
||||
(import-lambda-definition %display-height-mm (Xdisplay)
|
||||
"Display_Height_Mm")
|
||||
|
||||
;; ...
|
||||
;; See XDisplayMotionBufferSize.
|
||||
|
||||
(define (display-motion-buffer-size display)
|
||||
(%display-motion-buffer-size (display-Xdisplay display)))
|
||||
|
|
@ -210,7 +218,7 @@
|
|||
(import-lambda-definition %display-motion-buffer-size (Xdisplay)
|
||||
"Display_Motion_Buffer_Size")
|
||||
|
||||
;; ... the result is unspecific
|
||||
;; The display-flush-output flushes the output buffer. See XFlush.
|
||||
|
||||
(define (display-flush-output display)
|
||||
(%display-flush-output (display-Xdisplay display)))
|
||||
|
|
@ -218,7 +226,9 @@
|
|||
(import-lambda-definition %display-flush-output (Xdisplay)
|
||||
"Display_Flush_Output")
|
||||
|
||||
;; ... the result is unspecific
|
||||
;; display-wait-output flushes the output buffer and then waits until all
|
||||
;; requests have been received and processed by the X server. discard-events?
|
||||
;; specifies whether the events in the queue are discarded or nor. See XSync.
|
||||
|
||||
(define (display-wait-output display discard-events?)
|
||||
(%display-wait-output (display-Xdisplay display)
|
||||
|
|
@ -227,7 +237,8 @@
|
|||
(import-lambda-definition %display-wait-ouput (Xdisplay discard)
|
||||
"Display_Wait_Output")
|
||||
|
||||
;; ... the result is unspecific
|
||||
;; display-no-op sends a NoOperation protocol request to the X server, thereby
|
||||
;; exercising the connection. See XNoOp.
|
||||
|
||||
(define (display-no-op display)
|
||||
(%no-op (display-Xdisplay display)))
|
||||
|
|
@ -235,9 +246,11 @@
|
|||
(import-lambda-definition %no-op (Xdisplay)
|
||||
"No_Op")
|
||||
|
||||
;; for compatibility with Elk.
|
||||
(define no-op display-no-op)
|
||||
|
||||
;; ... returns a vector of integers
|
||||
;; display-list-depths returns a vector of depths (integers) that are available
|
||||
;; on the specified screen. See XListDepths.
|
||||
|
||||
(define (display-list-depths display screen-number)
|
||||
(%display-list-depths (display-Xdisplay display)
|
||||
|
|
@ -246,10 +259,11 @@
|
|||
(import-lambda-definition %display-list-depths (Xdisplay scr)
|
||||
"List_Depths")
|
||||
|
||||
;; for compatibility with Elk.
|
||||
(define list-depths display-list-depths)
|
||||
|
||||
;; ... returns a vector of lists with 3 integers (depth, bits per pixel,
|
||||
;; scanline pad)
|
||||
;; display-list-pixmap-formats returns a vector of lists with 3 integers: depth,
|
||||
;; bits per pixel and scanline pad (See above). See XListPixmapFormats.
|
||||
|
||||
(define (display-list-pixmap-formats display)
|
||||
(%display-list-pixmap-formats (display-Xdisplay display)))
|
||||
|
|
|
|||
Loading…
Reference in New Issue