/usr/src/RPM/BUILD/ctwm-4.1.0/win_iconify.c

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/*
 * Window de/iconification handling
 */
 
#include "ctwm.h"
 
#include <stdlib.h>
#include <sys/time.h>
 
#include <X11/extensions/shape.h>
 
#include "events.h"
#include "functions.h"
#include "iconmgr.h"
#include "icons.h"
#include "list.h"
#include "otp.h"
#include "screen.h"
#include "util.h"
#include "vscreen.h"
#include "win_iconify.h"
#include "win_ops.h"
#include "win_utils.h"
#include "workspace_manager.h"
 
 
/* Animations */
static void MosaicFade(TwmWindow *tmp_win, Window blanket);
static void ZoomInWindow(TwmWindow *tmp_win, Window blanket);
static void ZoomOutWindow(TwmWindow *tmp_win, Window blanket);
static void FadeWindow(TwmWindow *tmp_win, Window blanket);
static void SweepWindow(TwmWindow *tmp_win, Window blanket);
 
/* De/iconify utils */
static void Zoom(Window wf, Window wt);
static void ReMapOne(TwmWindow *t, TwmWindow *leader);
static void waitamoment(float timeout);
 
 
 
/*
 * The main routines for iconifying...
 */
void
Iconify(TwmWindow *tmp_win, int def_x, int def_y)
{
    TwmWindow *t;
    bool iconify;
    long eventMask;
    WList *wl;
    Window leader = (Window) - 1;
    Window blanket = (Window) - 1;
 
    iconify = (!tmp_win->iconify_by_unmapping);
    t = NULL;
    if(tmp_win->istransient) {
        leader = tmp_win->transientfor;
        t = GetTwmWindow(leader);
    }
    else if((leader = tmp_win->group) != 0 && leader != tmp_win->w) {
        t = GetTwmWindow(leader);
    }
    if(t && t->icon_on) {
        iconify = false;
    }
    if(iconify) {
        if(!tmp_win->icon || !tmp_win->icon->w) {
            CreateIconWindow(tmp_win, def_x, def_y);
        }
        else {
            IconUp(tmp_win);
        }
        if(visible(tmp_win)) {
            OtpRaise(tmp_win, IconWin);
            XMapWindow(dpy, tmp_win->icon->w);
        }
    }
    if(tmp_win->iconmanagerlist) {
        for(wl = tmp_win->iconmanagerlist; wl != NULL; wl = wl->nextv) {
            XMapWindow(dpy, wl->icon);
        }
    }
 
    /* Don't mask anything yet, just get the current for various uses */
    eventMask = mask_out_event(tmp_win->w, 0);
 
    /* iconify transients and window group first */
    UnmapTransients(tmp_win, iconify, eventMask);
 
    if(iconify) {
        Zoom(tmp_win->frame, tmp_win->icon->w);
    }
 
    /*
     * Prevent the receipt of an UnmapNotify, since that would
     * cause a transition to the Withdrawn state.
     */
    tmp_win->mapped = false;
 
    if((Scr->IconifyStyle != ICONIFY_NORMAL) && !Scr->WindowMask) {
        XWindowAttributes winattrs;
        XSetWindowAttributes attr;
 
        XGetWindowAttributes(dpy, tmp_win->frame, &winattrs);
        blanket = XCreateWindow(dpy, Scr->Root, winattrs.x, winattrs.y,
                                winattrs.width, winattrs.height, 0,
                                CopyFromParent, CopyFromParent,
                                CopyFromParent, None, &attr);
        XMapWindow(dpy, blanket);
    }
 
    mask_out_event_mask(tmp_win->w, StructureNotifyMask, eventMask);
    XUnmapWindow(dpy, tmp_win->w);
    XUnmapWindow(dpy, tmp_win->frame);
    restore_mask(tmp_win->w, eventMask);
 
    SetMapStateProp(tmp_win, IconicState);
 
    if((Scr->IconifyStyle != ICONIFY_NORMAL) && !Scr->WindowMask) {
        switch(Scr->IconifyStyle) {
            case ICONIFY_MOSAIC:
                MosaicFade(tmp_win, blanket);
                break;
            case ICONIFY_ZOOMIN:
                ZoomInWindow(tmp_win, blanket);
                break;
            case ICONIFY_ZOOMOUT:
                ZoomOutWindow(tmp_win, blanket);
                break;
            case ICONIFY_FADE:
                FadeWindow(tmp_win, blanket);
                break;
            case ICONIFY_SWEEP:
                SweepWindow(tmp_win, blanket);
                break;
            case ICONIFY_NORMAL:
                /* Placate insufficiently smart clang warning */
                break;
        }
        XDestroyWindow(dpy, blanket);
    }
    if(tmp_win == Scr->Focus) {
        SetFocus(NULL, EventTime);
        if(! Scr->ClickToFocus) {
            Scr->FocusRoot = true;
        }
    }
    tmp_win->isicon = true;
    tmp_win->icon_on = iconify;
    WMapIconify(tmp_win);
    if(! Scr->WindowMask && Scr->IconifyFunction.func != 0) {
        char *action;
        XEvent event;
 
        action = Scr->IconifyFunction.item ? Scr->IconifyFunction.item->action : NULL;
        ExecuteFunction(Scr->IconifyFunction.func, action,
                        (Window) 0, tmp_win, &event, C_ROOT, false);
    }
    XSync(dpy, 0);
}
 
 
/*
 * ... and its complement
 */
void
DeIconify(TwmWindow *tmp_win)
{
    TwmWindow *t = tmp_win;
    bool isicon = false;
 
    /* de-iconify the main window */
    if(Scr->WindowMask) {
        XRaiseWindow(dpy, Scr->WindowMask);
    }
    if(tmp_win->isicon) {
        isicon = true;
        if(tmp_win->icon_on && tmp_win->icon && tmp_win->icon->w) {
            Zoom(tmp_win->icon->w, tmp_win->frame);
        }
        else if(tmp_win->group != (Window) 0) {
            TwmWindow *tmpt = GetTwmWindow(tmp_win->group);
            if(tmpt) {
                t = tmpt;
                if(t->icon_on && t->icon && t->icon->w) {
                    Zoom(t->icon->w, tmp_win->frame);
                }
            }
        }
    }
 
    ReMapOne(tmp_win, t);
 
    if(isicon &&
                    (Scr->WarpCursor ||
                     LookInList(Scr->WarpCursorL, tmp_win->name, &tmp_win->class))) {
        WarpToWindow(tmp_win, false);
    }
 
    /* now de-iconify any window group transients */
    ReMapTransients(tmp_win);
 
    if(! Scr->WindowMask && Scr->DeIconifyFunction.func != 0) {
        char *action;
        XEvent event;
 
        action = Scr->DeIconifyFunction.item ?
                 Scr->DeIconifyFunction.item->action : NULL;
        ExecuteFunction(Scr->DeIconifyFunction.func, action,
                        (Window) 0, tmp_win, &event, C_ROOT, false);
    }
    XSync(dpy, 0);
}
 
 
 
/*
 * Animations for popping windows around.
 */
static void
MosaicFade(TwmWindow *tmp_win, Window blanket)
{
    int         srect;
    int         i, j, nrects;
    Pixmap      mask;
    GC          gc;
    XGCValues   gcv;
    XRectangle *rectangles;
    int  width = tmp_win->frame_width;
    int height = tmp_win->frame_height;
 
    srect = (width < height) ? (width / 20) : (height / 20);
    mask  = XCreatePixmap(dpy, blanket, width, height, 1);
 
    gcv.foreground = 1;
    gc = XCreateGC(dpy, mask, GCForeground, &gcv);
    XFillRectangle(dpy, mask, gc, 0, 0, width, height);
    gcv.function = GXclear;
    XChangeGC(dpy, gc, GCFunction, &gcv);
 
    nrects = ((width * height) / (srect * srect)) / 10;
    rectangles = calloc(nrects, sizeof(XRectangle));
    for(j = 0; j < nrects; j++) {
        rectangles [j].width  = srect;
        rectangles [j].height = srect;
    }
    for(i = 0; i < 10; i++) {
        for(j = 0; j < nrects; j++) {
            rectangles [j].x = ((lrand48() %  width) / srect) * srect;
            rectangles [j].y = ((lrand48() % height) / srect) * srect;
        }
        XFillRectangles(dpy, mask, gc, rectangles, nrects);
        XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
        XFlush(dpy);
        waitamoment(0.020);
    }
    XFreePixmap(dpy, mask);
    XFreeGC(dpy, gc);
    free(rectangles);
}
 
 
static void
ZoomInWindow(TwmWindow *tmp_win, Window blanket)
{
    Pixmap        mask;
    GC            gc, gcn;
    XGCValues     gcv;
 
    int i, nsteps = 20;
    int w = tmp_win->frame_width;
    int h = tmp_win->frame_height;
    int step = (MAX(w, h)) / (2.0 * nsteps);
 
    mask = XCreatePixmap(dpy, blanket, w, h, 1);
    gcv.foreground = 1;
    gc  = XCreateGC(dpy, mask, GCForeground, &gcv);
    gcv.function = GXclear;
    gcn = XCreateGC(dpy, mask, GCForeground | GCFunction, &gcv);
 
    for(i = 0; i < nsteps; i++) {
        XFillRectangle(dpy, mask, gcn, 0, 0, w, h);
        XFillArc(dpy, mask, gc, (w / 2) - ((nsteps - i) * step),
                 (h / 2) - ((nsteps - i) * step),
                 2 * (nsteps - i) * step,
                 2 * (nsteps - i) * step,
                 0, 360 * 64);
        XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
        XFlush(dpy);
        waitamoment(0.020);
    }
}
 
 
static void
ZoomOutWindow(TwmWindow *tmp_win, Window blanket)
{
    Pixmap        mask;
    GC            gc;
    XGCValues     gcv;
 
    int i, nsteps = 20;
    int w = tmp_win->frame_width;
    int h = tmp_win->frame_height;
    int step = (MAX(w, h)) / (2.0 * nsteps);
 
    mask  = XCreatePixmap(dpy, blanket, w, h, 1);
    gcv.foreground = 1;
    gc = XCreateGC(dpy, mask, GCForeground, &gcv);
    XFillRectangle(dpy, mask, gc, 0, 0, w, h);
    gcv.function = GXclear;
    XChangeGC(dpy, gc, GCFunction, &gcv);
 
    for(i = 0; i < nsteps; i++) {
        XFillArc(dpy, mask, gc, (w / 2) - (i * step),
                 (h / 2) - (i * step),
                 2 * i * step,
                 2 * i * step,
                 0, 360 * 64);
        XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
        XFlush(dpy);
        waitamoment(0.020);
    }
}
 
 
void
FadeWindow(TwmWindow *tmp_win, Window blanket)
{
    Pixmap        mask, stipple;
    GC            gc;
    XGCValues     gcv;
    static unsigned char stipple_bits[] = { 0x0F, 0x0F,
                                            0xF0, 0xF0,
                                            0x0F, 0x0F,
                                            0xF0, 0xF0,
                                            0x0F, 0x0F,
                                            0xF0, 0xF0,
                                            0x0F, 0x0F,
                                            0xF0, 0xF0,
                                          };
    int w = tmp_win->frame_width;
    int h = tmp_win->frame_height;
 
    stipple = XCreateBitmapFromData(dpy, blanket, (char *)stipple_bits, 8, 8);
    mask    = XCreatePixmap(dpy, blanket, w, h, 1);
    gcv.background = 0;
    gcv.foreground = 1;
    gcv.stipple    = stipple;
    gcv.fill_style = FillOpaqueStippled;
    gc = XCreateGC(dpy, mask, GCBackground | GCForeground | GCFillStyle | GCStipple,
                   &gcv);
    XFillRectangle(dpy, mask, gc, 0, 0, w, h);
 
    XShapeCombineMask(dpy, blanket, ShapeBounding, 0, 0, mask, ShapeSet);
    XFlush(dpy);
    waitamoment(0.10);
    XFreePixmap(dpy, stipple);
    XFlush(dpy);
}
 
 
static void
SweepWindow(TwmWindow *tmp_win, Window blanket)
{
    float step = 0.0;
    int i, nsteps = 20;
    int dir = 0, dist = tmp_win->frame_x, dist1;
 
    dist1 = tmp_win->frame_y;
    if(dist1 < dist) {
        dir = 1;
        dist = dist1;
    }
    dist1 = tmp_win->vs->w - (tmp_win->frame_x + tmp_win->frame_width);
    if(dist1 < dist) {
        dir = 2;
        dist = dist1;
    }
    dist1 = tmp_win->vs->h - (tmp_win->frame_y + tmp_win->frame_height);
    if(dist1 < dist) {
        dir = 3;
        dist = dist1;
        ALLOW_DEAD_STORE(dist);
    }
 
    switch(dir) {
        case 0:
            step = tmp_win->frame_x + tmp_win->frame_width;
            break;
        case 1:
            step = tmp_win->frame_y + tmp_win->frame_height;
            break;
        case 2:
            step = tmp_win->vs->w - tmp_win->frame_x;
            break;
        case 3:
            step = tmp_win->vs->h - tmp_win->frame_y;
            break;
    }
    step /= (float) nsteps;
    step /= (float) nsteps;
    for(i = 0; i < 20; i++) {
        int x = tmp_win->frame_x;
        int y = tmp_win->frame_y;
        switch(dir) {
            case 0:
                x -= i * i * step;
                break;
            case 1:
                y -= i * i * step;
                break;
            case 2:
                x += i * i * step;
                break;
            case 3:
                y += i * i * step;
                break;
        }
        XMoveWindow(dpy, blanket, x, y);
        XFlush(dpy);
        waitamoment(0.020);
    }
}
 
 
 
/*
 * Utils used by various bits above
 */
 
/***********************************************************************
 *
 *  Procedure:
 *      Zoom - zoom in or out of an icon
 *
 *  Inputs:
 *      wf      - window to zoom from
 *      wt      - window to zoom to
 *
 ***********************************************************************
 */
static void
Zoom(Window wf, Window wt)
{
    int fx, fy, tx, ty;                 /* from, to */
    unsigned int fw, fh, tw, th;        /* from, to */
    long dx, dy, dw, dh;
    long z;
    int j;
 
    if((Scr->IconifyStyle != ICONIFY_NORMAL) || !Scr->DoZoom
                    || Scr->ZoomCount < 1) {
        return;
    }
 
    if(wf == None || wt == None) {
        return;
    }
 
    XGetGeometry(dpy, wf, &JunkRoot, &fx, &fy, &fw, &fh, &JunkBW, &JunkDepth);
    XGetGeometry(dpy, wt, &JunkRoot, &tx, &ty, &tw, &th, &JunkBW, &JunkDepth);
 
    dx = (long) tx - (long) fx; /* going from -> to */
    dy = (long) ty - (long) fy; /* going from -> to */
    dw = (long) tw - (long) fw; /* going from -> to */
    dh = (long) th - (long) fh; /* going from -> to */
    z = (long)(Scr->ZoomCount + 1);
 
    for(j = 0; j < 2; j++) {
        long i;
 
        XDrawRectangle(dpy, Scr->Root, Scr->DrawGC, fx, fy, fw, fh);
        for(i = 1; i < z; i++) {
            int x = fx + (int)((dx * i) / z);
            int y = fy + (int)((dy * i) / z);
            unsigned width = (unsigned)(((long) fw) + (dw * i) / z);
            unsigned height = (unsigned)(((long) fh) + (dh * i) / z);
 
            XDrawRectangle(dpy, Scr->Root, Scr->DrawGC,
                           x, y, width, height);
        }
        XDrawRectangle(dpy, Scr->Root, Scr->DrawGC, tx, ty, tw, th);
    }
}
 
 
static void
ReMapOne(TwmWindow *t, TwmWindow *leader)
{
    if(t->icon_on) {
        Zoom(t->icon->w, t->frame);
    }
    else if(leader->icon) {
        Zoom(leader->icon->w, t->frame);
    }
 
    if(!t->squeezed) {
        XMapWindow(dpy, t->w);
    }
    t->mapped = true;
#ifdef CAPTIVE
    if(false && Scr->Root != Scr->CaptiveRoot) {        /* XXX dubious test */
        ReparentWindow(dpy, t, WinWin, Scr->Root, t->frame_x, t->frame_y);
    }
#endif
    if(!Scr->NoRaiseDeicon) {
        OtpRaise(t, WinWin);
    }
    XMapWindow(dpy, t->frame);
    SetMapStateProp(t, NormalState);
 
    if(t->icon && t->icon->w) {
        XUnmapWindow(dpy, t->icon->w);
        IconDown(t);
        if(Scr->ShrinkIconTitles) {
            t->icon->title_shrunk = true;
        }
    }
    if(t->iconmanagerlist) {
        WList *wl;
 
        for(wl = t->iconmanagerlist; wl != NULL; wl = wl->nextv) {
            XUnmapWindow(dpy, wl->icon);
        }
    }
    t->isicon = false;
    t->icon_on = false;
    WMapDeIconify(t);
}
 
 
/*
 * Mostly internal util of iconification, but squeezing code needs it
 * too.
 */
void
ReMapTransients(TwmWindow *tmp_win)
{
    TwmWindow *t;
 
    /* find t such that it is a transient or group member window */
    for(t = Scr->FirstWindow; t != NULL; t = t->next) {
        if(t != tmp_win &&
                        ((t->istransient && t->transientfor == tmp_win->w) ||
                         (t->group == tmp_win->w && t->isicon))) {
            ReMapOne(t, tmp_win);
        }
    }
}
 
 
/*
 * Ditto previous note about squeezing.
 */
void
UnmapTransients(TwmWindow *tmp_win, bool iconify, long eventMask)
{
    TwmWindow *t;
 
    for(t = Scr->FirstWindow; t != NULL; t = t->next) {
        if(t != tmp_win &&
                        ((t->istransient && t->transientfor == tmp_win->w) ||
                         t->group == tmp_win->w)) {
            if(iconify) {
                if(t->icon_on) {
                    Zoom(t->icon->w, tmp_win->icon->w);
                }
                else if(tmp_win->icon) {
                    Zoom(t->frame, tmp_win->icon->w);
                }
            }
 
            /*
             * Prevent the receipt of an UnmapNotify, since that would
             * cause a transition to the Withdrawn state.
             */
            t->mapped = false;
 
            /*
             * Note that here, we're setting masks relative to what we
             * were passed, which is that of the window these are
             * transient for, rather than relative to these windows'
             * current masks.  I believe in practice it's the same thing,
             * and it saves getting attributes on each for masking.
             * Still, a little odd...
             */
            mask_out_event_mask(t->w, StructureNotifyMask, eventMask);
            XUnmapWindow(dpy, t->w);
            XUnmapWindow(dpy, t->frame);
            restore_mask(t->w, eventMask);
 
            if(t->icon && t->icon->w) {
                XUnmapWindow(dpy, t->icon->w);
            }
            SetMapStateProp(t, IconicState);
            if(t == Scr->Focus) {
                SetFocus(NULL, EventTime);
                if(! Scr->ClickToFocus) {
                    Scr->FocusRoot = true;
                }
            }
            if(t->iconmanagerlist) {
                XMapWindow(dpy, t->iconmanagerlist->icon);
            }
            t->isicon = true;
            t->icon_on = false;
            WMapIconify(t);
        }
    }
}
 
 
static void
waitamoment(float timeout)
{
    struct timeval timeoutstruct;
    int usec = timeout * 1000000;
    timeoutstruct.tv_usec = usec % (unsigned long) 1000000;
    timeoutstruct.tv_sec  = usec / (unsigned long) 1000000;
    select(0, NULL, NULL, NULL, &timeoutstruct);
}