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Aminet 2
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Aminet AMIGA CDROM (1994)(Walnut Creek)[Feb 1994][W.O. 44790-1].iso
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Aminet
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gfx
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x11
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twm_930531.lha
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twm
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icons.c
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C/C++ Source or Header
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1993-05-30
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15KB
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585 lines
/*
* Copyright 1989 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission. M.I.T. makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/**********************************************************************
*
* $XConsortium: icons.c,v 1.22 91/07/12 09:58:38 dave Exp $
*
* Icon releated routines
*
* 10-Apr-89 Tom LaStrange Initial Version.
*
**********************************************************************/
#include <stdio.h>
#include "twm.h"
#include "screen.h"
#include "icons.h"
#include "gram.h"
#include "parse.h"
#include "util.h"
#define iconWidth(w) (Scr->IconBorderWidth * 2 + w->icon_w_width)
#define iconHeight(w) (Scr->IconBorderWidth * 2 + w->icon_w_height)
static
splitEntry (ie, grav1, grav2, w, h)
IconEntry *ie;
int grav1, grav2;
int w, h;
{
IconEntry *new;
switch (grav1) {
case D_NORTH:
case D_SOUTH:
if (w != ie->w)
splitEntry (ie, grav2, grav1, w, ie->h);
if (h != ie->h) {
new = (IconEntry *)malloc (sizeof (IconEntry));
new->twm_win = 0;
new->used = 0;
new->next = ie->next;
ie->next = new;
new->x = ie->x;
new->h = (ie->h - h);
new->w = ie->w;
ie->h = h;
if (grav1 == D_SOUTH) {
new->y = ie->y;
ie->y = new->y + new->h;
} else
new->y = ie->y + ie->h;
}
break;
case D_EAST:
case D_WEST:
if (h != ie->h)
splitEntry (ie, grav2, grav1, ie->w, h);
if (w != ie->w) {
new = (IconEntry *)malloc (sizeof (IconEntry));
new->twm_win = 0;
new->used = 0;
new->next = ie->next;
ie->next = new;
new->y = ie->y;
new->w = (ie->w - w);
new->h = ie->h;
ie->w = w;
if (grav1 == D_EAST) {
new->x = ie->x;
ie->x = new->x + new->w;
} else
new->x = ie->x + ie->w;
}
break;
}
}
roundUp (v, multiple)
{
return ((v + multiple - 1) / multiple) * multiple;
}
PlaceIcon(tmp_win, def_x, def_y, final_x, final_y)
TwmWindow *tmp_win;
int def_x, def_y;
int *final_x, *final_y;
{
IconRegion *ir;
IconEntry *ie;
int w = 0, h = 0;
ie = 0;
for (ir = Scr->FirstRegion; ir; ir = ir->next) {
w = roundUp (iconWidth (tmp_win), ir->stepx);
h = roundUp (iconHeight (tmp_win), ir->stepy);
for (ie = ir->entries; ie; ie=ie->next) {
if (ie->used)
continue;
if (ie->w >= w && ie->h >= h)
break;
}
if (ie)
break;
}
if (ie) {
splitEntry (ie, ir->grav1, ir->grav2, w, h);
ie->used = 1;
ie->twm_win = tmp_win;
*final_x = ie->x + (ie->w - iconWidth (tmp_win)) / 2;
*final_y = ie->y + (ie->h - iconHeight (tmp_win)) / 2;
} else {
*final_x = def_x;
*final_y = def_y;
}
return;
}
static IconEntry *
FindIconEntry (tmp_win, irp)
TwmWindow *tmp_win;
IconRegion **irp;
{
IconRegion *ir;
IconEntry *ie;
for (ir = Scr->FirstRegion; ir; ir = ir->next) {
for (ie = ir->entries; ie; ie=ie->next)
if (ie->twm_win == tmp_win) {
if (irp)
*irp = ir;
return ie;
}
}
return 0;
}
IconUp (tmp_win)
TwmWindow *tmp_win;
{
int x, y;
int defx, defy;
struct IconRegion *ir;
/*
* If the client specified a particular location, let's use it (this might
* want to be an option at some point). Otherwise, try to fit within the
* icon region.
*/
if (tmp_win->wmhints && (tmp_win->wmhints->flags & IconPositionHint))
return;
if (tmp_win->icon_moved) {
if (!XGetGeometry (dpy, tmp_win->icon_w, &JunkRoot, &defx, &defy,
&JunkWidth, &JunkHeight, &JunkBW, &JunkDepth))
return;
x = defx + ((int) JunkWidth) / 2;
y = defy + ((int) JunkHeight) / 2;
for (ir = Scr->FirstRegion; ir; ir = ir->next) {
if (x >= ir->x && x < (ir->x + ir->w) &&
y >= ir->y && y < (ir->y + ir->h))
break;
}
if (!ir) return; /* outside icon regions, leave alone */
}
defx = -100;
defy = -100;
PlaceIcon(tmp_win, defx, defy, &x, &y);
if (x != defx || y != defy) {
XMoveWindow (dpy, tmp_win->icon_w, x, y);
tmp_win->icon_moved = FALSE; /* since we've restored it */
}
}
static IconEntry *
prevIconEntry (ie, ir)
IconEntry *ie;
IconRegion *ir;
{
IconEntry *ip;
if (ie == ir->entries)
return 0;
for (ip = ir->entries; ip->next != ie; ip=ip->next)
;
return ip;
}
/* old is being freed; and is adjacent to ie. Merge
* regions together
*/
static
mergeEntries (old, ie)
IconEntry *old, *ie;
{
if (old->y == ie->y) {
ie->w = old->w + ie->w;
if (old->x < ie->x)
ie->x = old->x;
} else {
ie->h = old->h + ie->h;
if (old->y < ie->y)
ie->y = old->y;
}
}
IconDown (tmp_win)
TwmWindow *tmp_win;
{
IconEntry *ie, *ip, *in;
IconRegion *ir;
ie = FindIconEntry (tmp_win, &ir);
if (ie) {
ie->twm_win = 0;
ie->used = 0;
ip = prevIconEntry (ie, ir);
in = ie->next;
for (;;) {
if (ip && ip->used == 0 &&
((ip->x == ie->x && ip->w == ie->w) ||
(ip->y == ie->y && ip->h == ie->h)))
{
ip->next = ie->next;
mergeEntries (ie, ip);
free ((char *) ie);
ie = ip;
ip = prevIconEntry (ip, ir);
} else if (in && in->used == 0 &&
((in->x == ie->x && in->w == ie->w) ||
(in->y == ie->y && in->h == ie->h)))
{
ie->next = in->next;
mergeEntries (in, ie);
free ((char *) in);
in = ie->next;
} else
break;
}
}
}
AddIconRegion(geom, grav1, grav2, stepx, stepy)
char *geom;
int grav1, grav2;
{
IconRegion *ir;
int mask;
ir = (IconRegion *)malloc(sizeof(IconRegion));
ir->next = NULL;
if (Scr->LastRegion)
Scr->LastRegion->next = ir;
Scr->LastRegion = ir;
if (!Scr->FirstRegion)
Scr->FirstRegion = ir;
ir->entries = NULL;
ir->grav1 = grav1;
ir->grav2 = grav2;
if (stepx <= 0)
stepx = 1;
if (stepy <= 0)
stepy = 1;
ir->stepx = stepx;
ir->stepy = stepy;
ir->x = ir->y = ir->w = ir->h = 0;
mask = XParseGeometry(geom, &ir->x, &ir->y, (unsigned int *)&ir->w, (unsigned int *)&ir->h);
if (mask & XNegative)
ir->x += Scr->MyDisplayWidth - ir->w;
if (mask & YNegative)
ir->y += Scr->MyDisplayHeight - ir->h;
ir->entries = (IconEntry *)malloc(sizeof(IconEntry));
ir->entries->next = 0;
ir->entries->x = ir->x;
ir->entries->y = ir->y;
ir->entries->w = ir->w;
ir->entries->h = ir->h;
ir->entries->twm_win = 0;
ir->entries->used = 0;
}
#ifdef comment
FreeIconEntries (ir)
IconRegion *ir;
{
IconEntry *ie, *tmp;
for (ie = ir->entries; ie; ie=tmp)
{
tmp = ie->next;
free ((char *) ie);
}
}
FreeIconRegions()
{
IconRegion *ir, *tmp;
for (ir = Scr->FirstRegion; ir != NULL;)
{
tmp = ir;
FreeIconEntries (ir);
ir = ir->next;
free((char *) tmp);
}
Scr->FirstRegion = NULL;
Scr->LastRegion = NULL;
}
#endif
CreateIconWindow(tmp_win, def_x, def_y)
TwmWindow *tmp_win;
int def_x, def_y;
{
unsigned long event_mask;
unsigned long valuemask; /* mask for create windows */
XSetWindowAttributes attributes; /* attributes for create windows */
Pixmap pm = None; /* tmp pixmap variable */
int final_x, final_y;
int x;
FB(tmp_win->iconc.fore, tmp_win->iconc.back);
tmp_win->forced = FALSE;
tmp_win->icon_not_ours = FALSE;
/* now go through the steps to get an icon window, if ForceIcon is
* set, then no matter what else is defined, the bitmap from the
* .twmrc file is used
*/
if (Scr->ForceIcon)
{
char *icon_name;
Pixmap bm;
icon_name = LookInNameList(Scr->IconNames, tmp_win->full_name);
if (icon_name == NULL)
icon_name = LookInList(Scr->IconNames, tmp_win->full_name,
&tmp_win->class);
bm = None;
if (icon_name != NULL)
{
if ((bm = (Pixmap)LookInNameList(Scr->Icons, icon_name)) == None)
{
if ((bm = GetBitmap (icon_name)) != None)
AddToList(&Scr->Icons, icon_name, (char *)bm);
}
}
if (bm != None)
{
XGetGeometry(dpy, bm, &JunkRoot, &JunkX, &JunkY,
(unsigned int *) &tmp_win->icon_width, (unsigned int *)&tmp_win->icon_height,
&JunkBW, &JunkDepth);
pm = XCreatePixmap(dpy, Scr->Root, tmp_win->icon_width,
tmp_win->icon_height, Scr->d_depth);
/* the copy plane works on color ! */
XCopyPlane(dpy, bm, pm, Scr->NormalGC,
0,0, tmp_win->icon_width, tmp_win->icon_height, 0, 0, 1 );
tmp_win->forced = TRUE;
}
}
/* if the pixmap is still NULL, we didn't get one from the above code,
* that could mean that ForceIcon was not set, or that the window
* was not in the Icons list, now check the WM hints for an icon
*/
if (pm == None && tmp_win->wmhints &&
tmp_win->wmhints->flags & IconPixmapHint)
{
XGetGeometry(dpy, tmp_win->wmhints->icon_pixmap,
&JunkRoot, &JunkX, &JunkY,
(unsigned int *)&tmp_win->icon_width, (unsigned int *)&tmp_win->icon_height, &JunkBW, &JunkDepth);
pm = XCreatePixmap(dpy, Scr->Root,
tmp_win->icon_width, tmp_win->icon_height,
Scr->d_depth);
XCopyPlane(dpy, tmp_win->wmhints->icon_pixmap, pm, Scr->NormalGC,
0,0, tmp_win->icon_width, tmp_win->icon_height, 0, 0, 1 );
}
/* if we still haven't got an icon, let's look in the Icon list
* if ForceIcon is not set
*/
if (pm == None && !Scr->ForceIcon)
{
char *icon_name;
Pixmap bm;
icon_name = LookInNameList(Scr->IconNames, tmp_win->full_name);
if (icon_name == NULL)
icon_name = LookInList(Scr->IconNames, tmp_win->full_name,
&tmp_win->class);
bm = None;
if (icon_name != NULL)
{
if ((bm = (Pixmap)LookInNameList(Scr->Icons, icon_name)) == None)
{
if ((bm = GetBitmap (icon_name)) != None)
AddToList(&Scr->Icons, icon_name, (char *)bm);
}
}
if (bm != None)
{
XGetGeometry(dpy, bm, &JunkRoot, &JunkX, &JunkY,
(unsigned int *)&tmp_win->icon_width, (unsigned int *)&tmp_win->icon_height,
&JunkBW, &JunkDepth);
pm = XCreatePixmap(dpy, Scr->Root, tmp_win->icon_width,
tmp_win->icon_height, Scr->d_depth);
/* the copy plane works on color ! */
XCopyPlane(dpy, bm, pm, Scr->NormalGC,
0,0, tmp_win->icon_width, tmp_win->icon_height, 0, 0, 1 );
}
}
/* if we still don't have an icon, assign the UnknownIcon */
if (pm == None && Scr->UnknownPm != None)
{
tmp_win->icon_width = Scr->UnknownWidth;
tmp_win->icon_height = Scr->UnknownHeight;
pm = XCreatePixmap(dpy, Scr->Root, tmp_win->icon_width,
tmp_win->icon_height, Scr->d_depth);
/* the copy plane works on color ! */
XCopyPlane(dpy, Scr->UnknownPm, pm, Scr->NormalGC,
0,0, tmp_win->icon_width, tmp_win->icon_height, 0, 0, 1 );
}
if (pm == None)
{
tmp_win->icon_height = 0;
tmp_win->icon_width = 0;
valuemask = 0;
}
else
{
valuemask = CWBackPixmap;
attributes.background_pixmap = pm;
}
tmp_win->icon_w_width = XTextWidth(Scr->IconFont.font,
tmp_win->icon_name, strlen(tmp_win->icon_name));
tmp_win->icon_w_width += 6;
if (tmp_win->icon_w_width < tmp_win->icon_width)
{
tmp_win->icon_x = (tmp_win->icon_width - tmp_win->icon_w_width)/2;
tmp_win->icon_x += 3;
tmp_win->icon_w_width = tmp_win->icon_width;
}
else
{
tmp_win->icon_x = 3;
}
tmp_win->icon_y = tmp_win->icon_height + Scr->IconFont.height;
tmp_win->icon_w_height = tmp_win->icon_height + Scr->IconFont.height + 4;
event_mask = 0;
if (tmp_win->wmhints && tmp_win->wmhints->flags & IconWindowHint)
{
tmp_win->icon_w = tmp_win->wmhints->icon_window;
if (tmp_win->forced ||
XGetGeometry(dpy, tmp_win->icon_w, &JunkRoot, &JunkX, &JunkY,
(unsigned int *)&tmp_win->icon_w_width, (unsigned int *)&tmp_win->icon_w_height,
&JunkBW, &JunkDepth) == 0)
{
tmp_win->icon_w = None;
tmp_win->wmhints->flags &= ~IconWindowHint;
}
else
{
tmp_win->icon_not_ours = TRUE;
event_mask = EnterWindowMask | LeaveWindowMask;
}
}
else
{
tmp_win->icon_w = None;
}
if (tmp_win->icon_w == None)
{
tmp_win->icon_w = XCreateSimpleWindow(dpy, Scr->Root,
0,0,
tmp_win->icon_w_width, tmp_win->icon_w_height,
Scr->IconBorderWidth, tmp_win->icon_border, tmp_win->iconc.back);
event_mask = ExposureMask;
}
XSelectInput (dpy, tmp_win->icon_w,
KeyPressMask | ButtonPressMask | ButtonReleaseMask |
event_mask);
tmp_win->icon_bm_w = None;
if (pm != None &&
(! (tmp_win->wmhints && tmp_win->wmhints->flags & IconWindowHint)))
{
int y;
y = 0;
if (tmp_win->icon_w_width == tmp_win->icon_width)
x = 0;
else
x = (tmp_win->icon_w_width - tmp_win->icon_width)/2;
tmp_win->icon_bm_w = XCreateWindow (dpy, tmp_win->icon_w, x, y,
(unsigned int)tmp_win->icon_width,
(unsigned int)tmp_win->icon_height,
(unsigned int) 0, Scr->d_depth,
(unsigned int) CopyFromParent,
Scr->d_visual, valuemask,
&attributes);
}
/* I need to figure out where to put the icon window now, because
* getting here means that I am going to make the icon visible
*/
if (tmp_win->wmhints &&
tmp_win->wmhints->flags & IconPositionHint)
{
final_x = tmp_win->wmhints->icon_x;
final_y = tmp_win->wmhints->icon_y;
}
else
{
PlaceIcon(tmp_win, def_x, def_y, &final_x, &final_y);
}
if (final_x > Scr->MyDisplayWidth)
final_x = Scr->MyDisplayWidth - tmp_win->icon_w_width -
(2 * Scr->IconBorderWidth);
if (final_y > Scr->MyDisplayHeight)
final_y = Scr->MyDisplayHeight - tmp_win->icon_height -
Scr->IconFont.height - 4 - (2 * Scr->IconBorderWidth);
XMoveWindow(dpy, tmp_win->icon_w, final_x, final_y);
tmp_win->iconified = TRUE;
XMapSubwindows(dpy, tmp_win->icon_w);
XSaveContext(dpy, tmp_win->icon_w, TwmContext, (caddr_t)tmp_win);
XSaveContext(dpy, tmp_win->icon_w, ScreenContext, (caddr_t)Scr);
XDefineCursor(dpy, tmp_win->icon_w, Scr->IconCursor);
if (pm) XFreePixmap (dpy, pm);
return;
}