/*
 * 
Copyright (c) 1989  X Consortium

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.
 * */

/***********************************************************************
 *
 * $XConsortium: iconmgr.c,v 1.49 94/04/17 20:38:12 dave Exp $
 *
 * Icon Manager routines
 *
 * 09-Mar-89 Tom LaStrange		File Created
 *
 ***********************************************************************/

#include <stdio.h>
#include "twm.h"
#include "util.h"
#include "parse.h"
#include "screen.h"
#include "resize.h"
#include "add_window.h"
#include "siconify.bm"
#include <X11/Xos.h>
#include <X11/Xmu/CharSet.h>
#ifdef macII
int strcmp(); /* missing from string.h in AUX 2.0 */
#endif

int iconmgr_textx = siconify_width+11;
WList *Active = NULL;
WList *DownIconManager = NULL;
int iconifybox_width = siconify_width;
int iconifybox_height = siconify_height;

/***********************************************************************
 *
 *  Procedure:
 *	CreateIconManagers - creat all the icon manager windows
 *		for this screen.
 *
 *  Returned Value:
 *	none
 *
 *  Inputs:
 *	none
 *
 ***********************************************************************
 */

void CreateIconManagers()
{
    IconMgr *p;
    int mask;
    char str[100];
    char str1[100];
    Pixel background;
    char *icon_name;

    if (Scr->NoIconManagers)
	return;

    if (Scr->siconifyPm == None)
    {
	Scr->siconifyPm = XCreatePixmapFromBitmapData(dpy, Scr->Root,
	    (char *)siconify_bits, siconify_width, siconify_height, 1, 0, 1);
    }

    for (p = &Scr->iconmgr; p != NULL; p = p->next)
    {
	mask = XParseGeometry(p->geometry, &JunkX, &JunkY,
			      (unsigned int *) &p->width, (unsigned int *)&p->height);

	if (mask & XNegative)
	    JunkX = Scr->MyDisplayWidth - p->width - 
	      (2 * Scr->BorderWidth) + JunkX;

	if (mask & YNegative)
	    JunkY = Scr->MyDisplayHeight - p->height -
	      (2 * Scr->BorderWidth) + JunkY;

	background = Scr->IconManagerC.back;
	GetColorFromList(Scr->IconManagerBL, p->name, (XClassHint *)NULL,
			 &background);

	p->w = XCreateSimpleWindow(dpy, Scr->Root,
	    JunkX, JunkY, p->width, p->height, 1,
	    Scr->Black, background);

	sprintf(str, "%s Icon Manager", p->name);
	sprintf(str1, "%s Icons", p->name);
	if (p->icon_name)
	    icon_name = p->icon_name;
	else
	    icon_name = str1;

	XSetStandardProperties(dpy, p->w, str, icon_name, None, NULL, 0, NULL);

	p->twm_win = AddWindow(p->w, TRUE, p);
	SetMapStateProp (p->twm_win, WithdrawnState);
    }
    for (p = &Scr->iconmgr; p != NULL; p = p->next)
    {
	GrabButtons(p->twm_win);
	GrabKeys(p->twm_win);
    }
}

/***********************************************************************
 *
 *  Procedure:
 *	AllocateIconManager - allocate a new icon manager
 *
 *  Inputs:
 *	name	- the name of this icon manager
 *	icon_name - the name of the associated icon
 *	geom	- a geometry string to eventually parse
 *	columns	- the number of columns this icon manager has
 *
 ***********************************************************************
 */

IconMgr *AllocateIconManager(name, icon_name, geom, columns)
    char *name;
    char *geom;
    char *icon_name;
    int columns;
{
    IconMgr *p;

#ifdef DEBUG_ICONMGR
    fprintf(stderr, "AllocateIconManager\n");
    fprintf(stderr, "  name=\"%s\" icon_name=\"%s\", geom=\"%s\", col=%d\n",
	name, icon_name, geom, columns);
#endif

    if (Scr->NoIconManagers)
	return NULL;

    p = (IconMgr *)malloc(sizeof(IconMgr));
    p->name = name;
    p->icon_name = icon_name;
    p->geometry = geom;
    p->columns = columns;
    p->first = NULL;
    p->last = NULL;
    p->active = NULL;
    p->scr = Scr;
    p->count = 0;
    p->x = 0;
    p->y = 0;
    p->width = 150;
    p->height = 10;

    Scr->iconmgr.lasti->next = p;
    p->prev = Scr->iconmgr.lasti;
    Scr->iconmgr.lasti = p;
    p->next = NULL;

    return(p);
}

/***********************************************************************
 *
 *  Procedure:
 *	MoveIconManager - move the pointer around in an icon manager
 *
 *  Inputs:
 *	dir	- one of the following:
 *			F_FORWICONMGR	- forward in the window list
 *			F_BACKICONMGR	- backward in the window list
 *			F_UPICONMGR	- up one row
 *			F_DOWNICONMGR	- down one row
 *			F_LEFTICONMGR	- left one column
 *			F_RIGHTICONMGR	- right one column
 *
 *  Special Considerations:
 *	none
 *
 ***********************************************************************
 */

void MoveIconManager(dir)
    int dir;
{
    IconMgr *ip;
    WList *tmp = NULL;
    int cur_row, cur_col, new_row, new_col;
    int row_inc, col_inc;
    int got_it;

    if (!Active) return;

    cur_row = Active->row;
    cur_col = Active->col;
    ip = Active->iconmgr;

    row_inc = 0;
    col_inc = 0;
    got_it = FALSE;

    switch (dir)
    {
	case F_FORWICONMGR:
	    if ((tmp = Active->next) == NULL)
		tmp = ip->first;
	    got_it = TRUE;
	    break;

	case F_BACKICONMGR:
	    if ((tmp = Active->prev) == NULL)
		tmp = ip->last;
	    got_it = TRUE;
	    break;

	case F_UPICONMGR:
	    row_inc = -1;
	    break;

	case F_DOWNICONMGR:
	    row_inc = 1;
	    break;

	case F_LEFTICONMGR:
	    col_inc = -1;
	    break;

	case F_RIGHTICONMGR:
	    col_inc = 1;
	    break;
    }

    /* If got_it is FALSE ast this point then we got a left, right,
     * up, or down, command.  We will enter this loop until we find
     * a window to warp to.
     */
    new_row = cur_row;
    new_col = cur_col;

    while (!got_it)
    {
	new_row += row_inc;
	new_col += col_inc;
	if (new_row < 0)
	    new_row = ip->cur_rows - 1;
	if (new_col < 0)
	    new_col = ip->cur_columns - 1;
	if (new_row >= ip->cur_rows)
	    new_row = 0;
	if (new_col >= ip->cur_columns)
	    new_col = 0;
	    
	/* Now let's go through the list to see if there is an entry with this
	 * new position
	 */
	for (tmp = ip->first; tmp != NULL; tmp = tmp->next)
	{
	    if (tmp->row == new_row && tmp->col == new_col)
	    {
		got_it = TRUE;
		break;
	    }
	}
    }

    if (!got_it)
    {
	fprintf (stderr, 
		 "%s:  unable to find window (%d, %d) in icon manager\n", 
		 ProgramName, new_row, new_col);
	return;
    }

    if (tmp == NULL)
      return;

    /* raise the frame so the icon manager is visible */
    if (ip->twm_win->mapped) {
	XRaiseWindow(dpy, ip->twm_win->frame);
	XWarpPointer(dpy, None, tmp->icon, 0,0,0,0, 5, 5);
    } else {
	if (tmp->twm->title_height) {
	    int tbx = Scr->TBInfo.titlex;
	    int x = tmp->twm->highlightx;
	    XWarpPointer (dpy, None, tmp->twm->title_w, 0, 0, 0, 0,
			  tbx + (x - tbx) / 2,
			  Scr->TitleHeight / 4);
	} else {
	    XWarpPointer (dpy, None, tmp->twm->w, 0, 0, 0, 0, 5, 5);
	}
    }
}

/***********************************************************************
 *
 *  Procedure:
 *	JumpIconManager - jump from one icon manager to another,
 *		possibly even on another screen
 *
 *  Inputs:
 *	dir	- one of the following:
 *			F_NEXTICONMGR	- go to the next icon manager 
 *			F_PREVICONMGR	- go to the previous one
 *
 ***********************************************************************
 */

void JumpIconManager(dir)
    register int dir;
{
    IconMgr *ip, *tmp_ip = NULL;
    int got_it = FALSE;
    ScreenInfo *sp;
    int screen;

    if (!Active) return;


#define ITER(i) (dir == F_NEXTICONMGR ? (i)->next : (i)->prev)
#define IPOFSP(sp) (dir == F_NEXTICONMGR ? &(sp->iconmgr) : sp->iconmgr.lasti)
#define TEST(ip) if ((ip)->count != 0 && (ip)->twm_win->mapped) \
		 { got_it = TRUE; break; }

    ip = Active->iconmgr;
    for (tmp_ip = ITER(ip); tmp_ip; tmp_ip = ITER(tmp_ip)) {
	TEST (tmp_ip);
    }

    if (!got_it) {
	int origscreen = ip->scr->screen;
	int inc = (dir == F_NEXTICONMGR ? 1 : -1);

	for (screen = origscreen + inc; ; screen += inc) {
	    if (screen >= NumScreens)
	      screen = 0;
	    else if (screen < 0)
	      screen = NumScreens - 1;

	    sp = ScreenList[screen];
	    if (sp) {
		for (tmp_ip = IPOFSP (sp); tmp_ip; tmp_ip = ITER(tmp_ip)) {
		    TEST (tmp_ip);
		}
	    }
	    if (got_it || screen == origscreen) break;
	}
    }

#undef ITER
#undef IPOFSP
#undef TEST

    if (!got_it) {
	XBell (dpy, 0);
	return;
    }

    /* raise the frame so it is visible */
    XRaiseWindow(dpy, tmp_ip->twm_win->frame);
    if (tmp_ip->active)
	XWarpPointer(dpy, None, tmp_ip->active->icon, 0,0,0,0, 5, 5);
    else
	XWarpPointer(dpy, None, tmp_ip->w, 0,0,0,0, 5, 5);
}

/***********************************************************************
 *
 *  Procedure:
 *	AddIconManager - add a window to an icon manager
 *
 *  Inputs:
 *	tmp_win	- the TwmWindow structure
 *
 ***********************************************************************
 */

WList *AddIconManager(tmp_win)
    TwmWindow *tmp_win;
{
    WList *tmp;
    int h;
    unsigned long valuemask;		/* mask for create windows */
    XSetWindowAttributes attributes;	/* attributes for create windows */
    IconMgr *ip;

    tmp_win->list = NULL;

    if (tmp_win->iconmgr || tmp_win->transient || Scr->NoIconManagers)
	return NULL;

    if (LookInList(Scr->IconMgrNoShow, tmp_win->full_name, &tmp_win->class))
	return NULL;
    if (Scr->IconManagerDontShow &&
	!LookInList(Scr->IconMgrShow, tmp_win->full_name, &tmp_win->class))
	return NULL;
    if ((ip = (IconMgr *)LookInList(Scr->IconMgrs, tmp_win->full_name,
	    &tmp_win->class)) == NULL)
	ip = &Scr->iconmgr;

    tmp = (WList *) malloc(sizeof(WList));
    tmp->iconmgr = ip;
    tmp->next = NULL;
    tmp->active = FALSE;
    tmp->down = FALSE;

    InsertInIconManager(ip, tmp, tmp_win);

    tmp->twm = tmp_win;

    tmp->fore = Scr->IconManagerC.fore;
    tmp->back = Scr->IconManagerC.back;
    tmp->highlight = Scr->IconManagerHighlight;

    GetColorFromList(Scr->IconManagerFL, tmp_win->full_name, &tmp_win->class,
	&tmp->fore);
    GetColorFromList(Scr->IconManagerBL, tmp_win->full_name, &tmp_win->class,
	&tmp->back);
    GetColorFromList(Scr->IconManagerHighlightL, tmp_win->full_name,
	&tmp_win->class, &tmp->highlight);

    h = Scr->IconManagerFont.height + 10;
    if (h < (siconify_height + 4))
	h = siconify_height + 4;

    ip->height = h * ip->count;
    tmp->me = ip->count;
    tmp->x = -1;
    tmp->y = -1;
    
    valuemask = (CWBackPixel | CWBorderPixel | CWEventMask | CWCursor);
    attributes.background_pixel = tmp->back;
    attributes.border_pixel = tmp->back;
    attributes.event_mask = (KeyPressMask | ButtonPressMask |
			     ButtonReleaseMask | ExposureMask |
			     EnterWindowMask | LeaveWindowMask);
    attributes.cursor = Scr->IconMgrCursor;
    tmp->w = XCreateWindow (dpy, ip->w, 0, 0, (unsigned int) 1, 
			    (unsigned int) h, (unsigned int) 0, 
			    CopyFromParent, (unsigned int) CopyFromParent,
			    (Visual *) CopyFromParent, valuemask, &attributes);


    valuemask = (CWBackPixel | CWBorderPixel | CWEventMask | CWCursor);
    attributes.background_pixel = tmp->back;
    attributes.border_pixel = Scr->Black;
    attributes.event_mask = (ButtonReleaseMask| ButtonPressMask |
			     ExposureMask);
    attributes.cursor = Scr->ButtonCursor;
    tmp->icon = XCreateWindow (dpy, tmp->w, 5, (int) (h - siconify_height)/2,
			       (unsigned int) siconify_width,
			       (unsigned int) siconify_height,
			       (unsigned int) 0, CopyFromParent,
			       (unsigned int) CopyFromParent,
			       (Visual *) CopyFromParent,
			       valuemask, &attributes);

    ip->count += 1;
    PackIconManager(ip);
    XMapWindow(dpy, tmp->w);

    XSaveContext(dpy, tmp->w, IconManagerContext, (caddr_t) tmp);
    XSaveContext(dpy, tmp->w, TwmContext, (caddr_t) tmp_win);
    XSaveContext(dpy, tmp->w, ScreenContext, (caddr_t) Scr);
    XSaveContext(dpy, tmp->icon, TwmContext, (caddr_t) tmp_win);
    XSaveContext(dpy, tmp->icon, ScreenContext, (caddr_t) Scr);
    tmp_win->list = tmp;

    if (!ip->twm_win->icon)
    {
	XMapWindow(dpy, ip->w);
	XMapWindow(dpy, ip->twm_win->frame);
    }

    return (tmp);
}

/***********************************************************************
 *
 *  Procedure:
 *	InsertInIconManager - put an allocated entry into an icon 
 *		manager
 *
 *  Inputs:
 *	ip	- the icon manager pointer
 *	tmp	- the entry to insert
 *
 ***********************************************************************
 */

void InsertInIconManager(ip, tmp, tmp_win)
    IconMgr *ip;
    WList *tmp;
    TwmWindow *tmp_win;
{
    WList *tmp1;
    int added;
    int (*compar)() = (Scr->CaseSensitive ? strcmp : XmuCompareISOLatin1);

    added = FALSE;
    if (ip->first == NULL)
    {
	ip->first = tmp;
	tmp->prev = NULL;
	ip->last = tmp;
	added = TRUE;
    }
    else if (Scr->SortIconMgr)
    {
	for (tmp1 = ip->first; tmp1 != NULL; tmp1 = tmp1->next)
	{
	    if ((*compar)(tmp_win->icon_name, tmp1->twm->icon_name) < 0)
	    {
		tmp->next = tmp1;
		tmp->prev = tmp1->prev;
		tmp1->prev = tmp;
		if (tmp->prev == NULL)
		    ip->first = tmp;
		else
		    tmp->prev->next = tmp;
		added = TRUE;
		break;
	    }
	}
    }

    if (!added)
    {
	ip->last->next = tmp;
	tmp->prev = ip->last;
	ip->last = tmp;
    }
}

void RemoveFromIconManager(ip, tmp)
    IconMgr *ip;
    WList *tmp;
{
    if (tmp->prev == NULL)
	ip->first = tmp->next;
    else
	tmp->prev->next = tmp->next;

    if (tmp->next == NULL)
	ip->last = tmp->prev;
    else
	tmp->next->prev = tmp->prev;
}

/***********************************************************************
 *
 *  Procedure:
 *	RemoveIconManager - remove a window from the icon manager
 *
 *  Inputs:
 *	tmp_win	- the TwmWindow structure
 *
 ***********************************************************************
 */

void RemoveIconManager(tmp_win)
    TwmWindow *tmp_win;
{
    IconMgr *ip;
    WList *tmp;

    if (tmp_win->list == NULL)
	return;

    tmp = tmp_win->list;
    tmp_win->list = NULL;
    ip = tmp->iconmgr;

    RemoveFromIconManager(ip, tmp);
    
    XDeleteContext(dpy, tmp->icon, TwmContext);
    XDeleteContext(dpy, tmp->icon, ScreenContext);
    XDestroyWindow(dpy, tmp->icon);
    XDeleteContext(dpy, tmp->w, IconManagerContext);
    XDeleteContext(dpy, tmp->w, TwmContext);
    XDeleteContext(dpy, tmp->w, ScreenContext);
    XDestroyWindow(dpy, tmp->w);
    ip->count -= 1;
    free((char *) tmp);

    PackIconManager(ip);

    if (ip->count == 0)
    {
	XUnmapWindow(dpy, ip->twm_win->frame);
    }

}

void ActiveIconManager(active)
    WList *active;
{
    active->active = TRUE;
    Active = active;
    Active->iconmgr->active = active;
    DrawIconManagerBorder(active);
}

void NotActiveIconManager(active)
    WList *active;
{
    active->active = FALSE;
    DrawIconManagerBorder(active);
}

void DrawIconManagerBorder(tmp)
    WList *tmp;
{
    {
	XSetForeground(dpy, Scr->NormalGC, tmp->fore);
	    XDrawRectangle(dpy, tmp->w, Scr->NormalGC, 2, 2,
		tmp->width-5, tmp->height-5);

	if (tmp->active && Scr->Highlight)
	    XSetForeground(dpy, Scr->NormalGC, tmp->highlight);
	else
	    XSetForeground(dpy, Scr->NormalGC, tmp->back);

	XDrawRectangle(dpy, tmp->w, Scr->NormalGC, 0, 0,
	    tmp->width-1, tmp->height-1);
	XDrawRectangle(dpy, tmp->w, Scr->NormalGC, 1, 1,
	    tmp->width-3, tmp->height-3);
    }
}

/***********************************************************************
 *
 *  Procedure:
 *	SortIconManager - sort the dude
 *
 *  Inputs:
 *	ip	- a pointer to the icon manager struture
 *
 ***********************************************************************
 */

void SortIconManager(ip)
    IconMgr *ip;
{
    WList *tmp1, *tmp2;
    int done;
    int (*compar)() = (Scr->CaseSensitive ? strcmp : XmuCompareISOLatin1);

    if (ip == NULL)
	ip = Active->iconmgr;

    done = FALSE;
    do
    {
	for (tmp1 = ip->first; tmp1 != NULL; tmp1 = tmp1->next)
	{
	    if ((tmp2 = tmp1->next) == NULL)
	    {
		done = TRUE;
		break;
	    }
	    if ((*compar)(tmp1->twm->icon_name, tmp2->twm->icon_name) > 0)
	    {
		/* take it out and put it back in */
		RemoveFromIconManager(ip, tmp2);
		InsertInIconManager(ip, tmp2, tmp2->twm);
		break;
	    }
	}
    }
    while (!done);
    PackIconManager(ip);
}

/***********************************************************************
 *
 *  Procedure:
 *	PackIconManager - pack the icon manager windows following
 *		an addition or deletion
 *
 *  Inputs:
 *	ip	- a pointer to the icon manager struture
 *
 ***********************************************************************
 */

void PackIconManager(ip)
    IconMgr *ip;
{
    int newwidth, i, row, col, maxcol,  colinc, rowinc, wheight, wwidth;
    int new_x, new_y;
    int savewidth;
    WList *tmp;

    wheight = Scr->IconManagerFont.height + 10;
    if (wheight < (siconify_height + 4))
	wheight = siconify_height + 4;

    wwidth = ip->width / ip->columns;

    rowinc = wheight;
    colinc = wwidth;

    row = 0;
    col = ip->columns;
    maxcol = 0;
    for (i = 0, tmp = ip->first; tmp != NULL; i++, tmp = tmp->next)
    {
	tmp->me = i;
	if (++col >= ip->columns)
	{
	    col = 0;
	    row += 1;
	}
	if (col > maxcol)
	    maxcol = col;

	new_x = col * colinc;
	new_y = (row-1) * rowinc;

	/* if the position or size has not changed, don't touch it */
	if (tmp->x != new_x || tmp->y != new_y ||
	    tmp->width != wwidth || tmp->height != wheight)
	{
	    XMoveResizeWindow(dpy, tmp->w, new_x, new_y, wwidth, wheight);

	    tmp->row = row-1;
	    tmp->col = col;
	    tmp->x = new_x;
	    tmp->y = new_y;
	    tmp->width = wwidth;
	    tmp->height = wheight;
	}
    }
    maxcol += 1;

    ip->cur_rows = row;
    ip->cur_columns = maxcol;
    ip->height = row * rowinc;
    if (ip->height == 0)
    	ip->height = rowinc;
    newwidth = maxcol * colinc;
    if (newwidth == 0)
	newwidth = colinc;

    XResizeWindow(dpy, ip->w, newwidth, ip->height);

    savewidth = ip->width;
    if (ip->twm_win)
      SetupWindow (ip->twm_win,
		   ip->twm_win->frame_x, ip->twm_win->frame_y,
		   newwidth, ip->height + ip->twm_win->title_height, -1);
    ip->width = savewidth;
}
