mirror of
https://github.com/Interlisp/maiko.git
synced 2026-01-15 15:57:13 +00:00
6fb4b9a189
* Remove static char *id = from all source files. The same information is included in a comment in each source file. * Remove unused template file 'id'
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* $Id: xscroll.c,v 1.2 1999/01/03 02:07:48 sybalsky Exp $ (C) Copyright Venue, All Rights Reserved
|
|
*/
|
|
|
|
/************************************************************************/
|
|
/* */
|
|
/* (C) Copyright 1989, 1990, 1990, 1991, 1992, 1993, 1994, 1995 Venue. */
|
|
/* All Rights Reserved. */
|
|
/* Manufactured in the United States of America. */
|
|
/* */
|
|
/************************************************************************/
|
|
|
|
#include "version.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
|
|
#include "lispemul.h"
|
|
#include "xdefs.h"
|
|
#include "devif.h"
|
|
|
|
#include "xscrolldefs.h"
|
|
#include "xwinmandefs.h"
|
|
|
|
int ScrollPitch = SCROLL_PITCH;
|
|
|
|
/* Move the DisplayWindow and the ScrollButtons to a new */
|
|
/* position. newX, newY refers to the upper left corner */
|
|
/* of the LispDisplay */
|
|
void Scroll(DspInterface dsp, int newX, int newY)
|
|
{
|
|
/* Limit the newX and newY values. */
|
|
dsp->Visible.x = bound(0, newX, dsp->Display.width - dsp->Visible.width);
|
|
dsp->Visible.y = bound(0, newY, dsp->Display.height - dsp->Visible.height);
|
|
|
|
newX = (int)((dsp->Visible.x * dsp->Visible.width) / dsp->Display.width);
|
|
newY = (int)((dsp->Visible.y * dsp->Visible.height) / dsp->Display.height);
|
|
|
|
XMoveWindow(dsp->display_id, dsp->HorScrollButton, newX, -dsp->InternalBorderWidth);
|
|
XMoveWindow(dsp->display_id, dsp->VerScrollButton, -dsp->InternalBorderWidth, newY);
|
|
|
|
(dsp->bitblt_to_screen)(dsp, 0, dsp->Visible.x, dsp->Visible.y, dsp->Visible.width,
|
|
dsp->Visible.height);
|
|
} /* end Scroll */
|
|
|
|
void JumpScrollVer(DspInterface dsp, int y)
|
|
{ Scroll(dsp, dsp->Visible.x, (int)((dsp->Display.width * y) / dsp->Visible.height)); }
|
|
|
|
void JumpScrollHor(DspInterface dsp, int x)
|
|
{ Scroll(dsp, (int)((dsp->Display.width * x) / dsp->Visible.width), dsp->Visible.y); }
|
|
|
|
void ScrollLeft(DspInterface dsp)
|
|
{ Scroll(dsp, dsp->Visible.x - ScrollPitch, dsp->Visible.y); }
|
|
|
|
void ScrollRight(DspInterface dsp)
|
|
{ Scroll(dsp, dsp->Visible.x + ScrollPitch, dsp->Visible.y); }
|
|
|
|
void ScrollUp(DspInterface dsp)
|
|
{ Scroll(dsp, dsp->Visible.x, dsp->Visible.y - ScrollPitch); }
|
|
|
|
void ScrollDown(DspInterface dsp)
|
|
{ Scroll(dsp, dsp->Visible.x, dsp->Visible.y + ScrollPitch); }
|