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- /* placement.c - window and icon placement on screen
- *
- * Window Maker window manager
- *
- * Copyright (c) 1997, 1998 Alfredo K. Kojima
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
- */
-
- #include "wconfig.h"
-
- #include <X11/Xlib.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <limits.h>
-
- #include "WindowMaker.h"
- #include "wcore.h"
- #include "framewin.h"
- #include "window.h"
- #include "icon.h"
- #include "appicon.h"
- #include "actions.h"
- #include "funcs.h"
- #include "application.h"
- #include "appicon.h"
- #include "dock.h"
-
-
- extern WPreferences wPreferences;
-
-
- #define X_ORIGIN(scr) WMAX((scr)->totalUsableArea.x1,\
- wPreferences.window_place_origin.x)
-
- #define Y_ORIGIN(scr) WMAX((scr)->totalUsableArea.y1,\
- wPreferences.window_place_origin.y)
-
-
- /*
- * interactive window placement is in moveres.c
- */
-
- extern void
- InteractivePlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
- unsigned width, unsigned height);
-
-
- /*
- * Returns True if it is an icon and is in this workspace.
- */
- static Bool
- iconPosition(WCoreWindow *wcore, int sx1, int sy1, int sx2, int sy2,
- int workspace, int *retX, int *retY)
- {
- void *parent;
- int ok = 0;
-
- parent = wcore->descriptor.parent;
-
- /* if it is an application icon */
- if (wcore->descriptor.parent_type == WCLASS_APPICON
- && !((WAppIcon*)parent)->docked) {
- *retX = ((WAppIcon*)parent)->x_pos;
- *retY = ((WAppIcon*)parent)->y_pos;
-
- ok = 1;
- } else if (wcore->descriptor.parent_type == WCLASS_MINIWINDOW &&
- (((WIcon*)parent)->owner->frame->workspace == workspace
- || IS_OMNIPRESENT(((WIcon*)parent)->owner)
- || wPreferences.sticky_icons)
- && ((WIcon*)parent)->mapped) {
-
- *retX = ((WIcon*)parent)->owner->icon_x;
- *retY = ((WIcon*)parent)->owner->icon_y;
-
- ok = 1;
- } else if (wcore->descriptor.parent_type == WCLASS_WINDOW
- && ((WWindow*)parent)->flags.icon_moved
- && (((WWindow*)parent)->frame->workspace == workspace
- || IS_OMNIPRESENT((WWindow*)parent)
- || wPreferences.sticky_icons)) {
- *retX = ((WWindow*)parent)->icon_x;
- *retY = ((WWindow*)parent)->icon_y;
-
- ok = 1;
- }
-
-
- /*
- * Check if it is inside the screen.
- */
- if (ok) {
- if (*retX < sx1-wPreferences.icon_size)
- ok = 0;
- else if (*retX > sx2)
- ok = 0;
-
- if (*retY < sy1-wPreferences.icon_size)
- ok = 0;
- else if (*retY > sy2)
- ok = 0;
- }
-
- return ok;
- }
-
-
-
-
- void
- PlaceIcon(WScreen *scr, int *x_ret, int *y_ret)
- {
- int pf; /* primary axis */
- int sf; /* secondary axis */
- int fullW;
- int fullH;
- char *map;
- int pi, si;
- WCoreWindow *obj;
- int sx1, sx2, sy1, sy2; /* screen boundary */
- int sw, sh;
- int xo, yo;
- int xs, ys;
- int x, y;
- int isize = wPreferences.icon_size;
- int done = 0;
- WMBagIterator iter;
-
- /*
- * Find out screen boundaries.
- */
- sx1 = 0;
- sy1 = 0;
- sx2 = scr->scr_width;
- sy2 = scr->scr_height;
- if (scr->dock) {
- if (scr->dock->on_right_side)
- sx2 -= isize + DOCK_EXTRA_SPACE;
- else
- sx1 += isize + DOCK_EXTRA_SPACE;
- }
-
- sw = isize * (scr->scr_width/isize);
- sh = isize * (scr->scr_height/isize);
- fullW = (sx2-sx1)/isize;
- fullH = (sy2-sy1)/isize;
-
- /* icon yard boundaries */
- if (wPreferences.icon_yard & IY_VERT) {
- pf = fullH;
- sf = fullW;
- } else {
- pf = fullW;
- sf = fullH;
- }
- if (wPreferences.icon_yard & IY_RIGHT) {
- xo = sx2 - isize;
- xs = -1;
- } else {
- xo = sx1;
- xs = 1;
- }
- if (wPreferences.icon_yard & IY_TOP) {
- yo = sy1;
- ys = 1;
- } else {
- yo = sy2 - isize;
- ys = -1;
- }
-
- /*
- * Create a map with the occupied slots. 1 means the slot is used
- * or at least partially used.
- * The slot usage can be optimized by only marking fully used slots
- * or slots that have most of it covered.
- * Space usage is worse than the fvwm algorithm (used in the old version)
- * but complexity is much better (faster) than it.
- */
- map = wmalloc((sw+2) * (sh+2));
- memset(map, 0, (sw+2) * (sh+2));
-
- #define INDEX(x,y) (((y)+1)*(sw+2) + (x) + 1)
-
- WM_ETARETI_BAG(scr->stacking_list, obj, iter) {
-
- while (obj) {
- int x, y;
-
- if (iconPosition(obj, sx1, sy1, sx2, sy2, scr->current_workspace,
- &x, &y)) {
- int xdi, ydi; /* rounded down */
- int xui, yui; /* rounded up */
-
- xdi = x/isize;
- ydi = y/isize;
- xui = (x+isize/2)/isize;
- yui = (y+isize/2)/isize;
- map[INDEX(xdi,ydi)] = 1;
- map[INDEX(xdi,yui)] = 1;
- map[INDEX(xui,ydi)] = 1;
- map[INDEX(xui,yui)] = 1;
- }
- obj = obj->stacking->under;
- }
- }
- /*
- * Default position
- */
- *x_ret = 0;
- *y_ret = 0;
-
- /*
- * Look for an empty slot
- */
- for (si=0; si<sf; si++) {
- for (pi=0; pi<pf; pi++) {
- if (wPreferences.icon_yard & IY_VERT) {
- x = xo + xs*(si*isize);
- y = yo + ys*(pi*isize);
- } else {
- x = xo + xs*(pi*isize);
- y = yo + ys*(si*isize);
- }
- if (!map[INDEX(x/isize, y/isize)]) {
- *x_ret = x;
- *y_ret = y;
- done = 1;
- break;
- }
- }
- if (done)
- break;
- }
-
- free(map);
- }
-
-
- /*
- * This function calculates the length of the intersection of two
- * line sections. (Hey, is that english?)
- */
- static int
- calcIntersectionLength(int p1, int l1, int p2, int l2)
- {
- int isect;
- int tmp;
-
- if (p1 > p2) {
- tmp = p1;
- p1 = p2;
- p2 = tmp;
- tmp = l1;
- l1 = l2;
- l2 = tmp;
- }
-
- if (p1 + l1 < p2)
- isect = 0;
- else if (p2 + l2 < p1 + l1)
- isect = l2;
- else
- isect = p1 + l1 - p2;
-
- return isect;
- }
-
-
- /*
- * This function calculates the area of the intersection of two rectangles.
- */
- static int
- calcIntersectionArea(int x1, int y1, int w1, int h1,
- int x2, int y2, int w2, int h2)
- {
- return calcIntersectionLength(x1, w1, x2, w2)
- * calcIntersectionLength(y1, h1, y2, h2);
- }
-
-
- static int
- calcSumOfCoveredAreas(WWindow *wwin, int x, int y, int w, int h)
- {
- int sum_isect = 0;
- WWindow *test_window;
- int tw,tx,ty,th;
-
- test_window = wwin->screen_ptr->focused_window;
- for(;test_window != NULL && test_window->prev != NULL;)
- test_window = test_window->prev;
-
- for(; test_window != NULL; test_window = test_window->next) {
- if (test_window->frame->core->stacking->window_level
- < WMNormalLevel) {
- continue;
- }
-
- #if 0
- tw = test_window->client.width;
- if (test_window->flags.shaded)
- th = test_window->frame->top_width;
- else
- th = test_window->client.height + extra_height;
- #else
- tw = test_window->frame->core->width;
- th = test_window->frame->core->height;
- #endif
- tx = test_window->frame_x;
- ty = test_window->frame_y;
-
- if (test_window->flags.mapped ||
- (test_window->flags.shaded &&
- !(test_window->flags.miniaturized ||
- test_window->flags.hidden))) {
- sum_isect += calcIntersectionArea(tx, ty, tw, th, x, y, w, h);
- }
- }
-
- return sum_isect;
- }
-
-
- static void
- smartPlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
- unsigned int width, unsigned int height)
- {
- WScreen *scr = wwin->screen_ptr;
- int test_x = 0, test_y = Y_ORIGIN(scr);
- int from_x, to_x, from_y, to_y;
- int sx;
- int min_isect, min_isect_x, min_isect_y;
- int sum_isect;
- int extra_height;
- WArea usableArea = scr->totalUsableArea;
-
- if (wwin->frame)
- extra_height = wwin->frame->top_width + wwin->frame->bottom_width;
- else
- extra_height = 24; /* random value */
-
- sx = X_ORIGIN(scr);
-
- min_isect = INT_MAX;
- min_isect_x = sx;
- min_isect_y = test_y;
-
- height += extra_height;
-
- while (((test_y + height) < usableArea.y2)) {
-
- test_x = sx;
-
- while ((test_x + width) < usableArea.x2) {
-
- sum_isect = calcSumOfCoveredAreas(wwin, test_x, test_y,
- width, height);
-
- if ( sum_isect < min_isect ) {
- min_isect = sum_isect;
- min_isect_x = test_x;
- min_isect_y = test_y;
- }
-
- test_x += PLACETEST_HSTEP;
- }
- test_y += PLACETEST_VSTEP;
- }
-
- from_x = min_isect_x - PLACETEST_HSTEP + 1;
- from_x = WMAX(from_x, X_ORIGIN(scr));
- to_x = min_isect_x + PLACETEST_HSTEP;
- if (to_x + width > usableArea.x2)
- to_x = usableArea.x2 - width;
-
- from_y = min_isect_y - PLACETEST_VSTEP + 1;
- from_y = WMAX(from_y, Y_ORIGIN(scr));
- to_y = min_isect_y + PLACETEST_VSTEP;
- if (to_y + height > usableArea.y2)
- to_y = usableArea.y2 - height;
-
- for (test_x = from_x; test_x < to_x; test_x++) {
- for (test_y = from_y; test_y < to_y; test_y++) {
- sum_isect = calcSumOfCoveredAreas(wwin, test_x, test_y,
- width, height);
-
- if ( sum_isect < min_isect ) {
- min_isect = sum_isect;
- min_isect_x = test_x;
- min_isect_y = test_y;
- }
- }
- }
-
- *x_ret = min_isect_x;
- *y_ret = min_isect_y;
- }
-
-
- static Bool
- autoPlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
- unsigned int width, unsigned int height, int tryCount)
- {
- WScreen *scr = wwin->screen_ptr;
- int test_x = 0, test_y = Y_ORIGIN(scr);
- int loc_ok = False, tw,tx,ty,th;
- int swidth, sx;
- WWindow *test_window;
- int extra_height;
- WArea usableArea = scr->totalUsableArea;
-
- if (wwin->frame)
- extra_height = wwin->frame->top_width + wwin->frame->bottom_width + 2;
- else
- extra_height = 24; /* random value */
-
- swidth = usableArea.x2-usableArea.x1;
- sx = X_ORIGIN(scr);
-
- /* this was based on fvwm2's smart placement */
-
- height += extra_height;
-
- while (((test_y + height) < (scr->scr_height)) && (!loc_ok)) {
-
- test_x = sx;
-
- while (((test_x + width) < swidth) && (!loc_ok)) {
-
- loc_ok = True;
- test_window = scr->focused_window;
-
- while ((test_window != NULL) && (loc_ok == True)) {
-
- if (test_window->frame->core->stacking->window_level
- < WMNormalLevel && tryCount > 0) {
- test_window = test_window->next;
- continue;
- }
- #if 0
- tw = test_window->client.width;
- if (test_window->flags.shaded)
- th = test_window->frame->top_width;
- else
- th = test_window->client.height + extra_height;
- #else
- tw = test_window->frame->core->width;
- th = test_window->frame->core->height;
- #endif
- tx = test_window->frame_x;
- ty = test_window->frame_y;
-
- if ((tx < (test_x + width)) && ((tx + tw) > test_x) &&
- (ty < (test_y + height)) && ((ty + th) > test_y) &&
- (test_window->flags.mapped ||
- (test_window->flags.shaded &&
- !(test_window->flags.miniaturized ||
- test_window->flags.hidden)))) {
-
- loc_ok = False;
- }
- test_window = test_window->next;
- }
-
- test_window = scr->focused_window;
-
- while ((test_window != NULL) && (loc_ok == True)) {
-
- if (test_window->frame->core->stacking->window_level
- < WMNormalLevel && tryCount > 0) {
- test_window = test_window->prev;
- continue;
- }
- #if 0
- tw = test_window->client.width;
- if (test_window->flags.shaded)
- th = test_window->frame->top_width;
- else
- th = test_window->client.height + extra_height;
- #else
- tw = test_window->frame->core->width;
- th = test_window->frame->core->height;
- #endif
- tx = test_window->frame_x;
- ty = test_window->frame_y;
-
- if ((tx < (test_x + width)) && ((tx + tw) > test_x) &&
- (ty < (test_y + height)) && ((ty + th) > test_y) &&
- (test_window->flags.mapped ||
- (test_window->flags.shaded &&
- !(test_window->flags.miniaturized ||
- test_window->flags.hidden)))) {
-
- loc_ok = False;
- }
- test_window = test_window->prev;
- }
- if (loc_ok == True) {
- *x_ret = test_x;
- *y_ret = test_y;
- break;
- }
- test_x += PLACETEST_HSTEP;
- }
- test_y += PLACETEST_VSTEP;
- }
-
- return loc_ok;
- }
-
-
- static void
- cascadeWindow(WScreen *scr, WWindow *wwin, int *x_ret, int *y_ret,
- unsigned int width, unsigned int height, int h)
- {
- unsigned int extra_height;
- WArea usableArea = scr->totalUsableArea;
-
- if (wwin->frame)
- extra_height = wwin->frame->top_width + wwin->frame->bottom_width;
- else
- extra_height = 24; /* random value */
-
- *x_ret = h * scr->cascade_index + X_ORIGIN(scr);
- *y_ret = h * scr->cascade_index + Y_ORIGIN(scr);
- height += extra_height;
-
- if (width + *x_ret > usableArea.x2 || height + *y_ret > usableArea.y2) {
- scr->cascade_index = 0;
- *x_ret = X_ORIGIN(scr);
- *y_ret = Y_ORIGIN(scr);
- }
- }
-
-
- void
- PlaceWindow(WWindow *wwin, int *x_ret, int *y_ret,
- unsigned width, unsigned height)
- {
- WScreen *scr = wwin->screen_ptr;
- int h = WMFontHeight(scr->title_font) + (wPreferences.window_title_clearance + TITLEBAR_EXTEND_SPACE) * 2;
-
- switch (wPreferences.window_placement) {
- case WPM_MANUAL:
- InteractivePlaceWindow(wwin, x_ret, y_ret, width, height);
- break;
-
- case WPM_SMART:
- smartPlaceWindow(wwin, x_ret, y_ret, width, height);
- break;
-
- case WPM_AUTO:
- if (autoPlaceWindow(wwin, x_ret, y_ret, width, height, 0)) {
- break;
- } else if (autoPlaceWindow(wwin, x_ret, y_ret, width, height, 1)) {
- break;
- }
- /* there isn't a break here, because if we fail, it should fall
- through to cascade placement, as people who want tiling want
- automagicness aren't going to want to place their window */
-
- case WPM_CASCADE:
- if (wPreferences.window_placement == WPM_AUTO)
- scr->cascade_index++;
-
- cascadeWindow(scr, wwin, x_ret, y_ret, width, height, h);
-
- if (wPreferences.window_placement == WPM_CASCADE)
- scr->cascade_index++;
- break;
-
- case WPM_RANDOM:
- {
- int w, h, extra_height;
- WArea usableArea = scr->totalUsableArea;
-
- if (wwin->frame)
- extra_height = wwin->frame->top_width + wwin->frame->bottom_width + 2;
- else
- extra_height = 24; /* random value */
-
- w = ((usableArea.x2-X_ORIGIN(scr)) - width);
- h = ((usableArea.y2-Y_ORIGIN(scr)) - height - extra_height);
- if (w<1) w = 1;
- if (h<1) h = 1;
- *x_ret = X_ORIGIN(scr) + rand()%w;
- *y_ret = Y_ORIGIN(scr) + rand()%h;
- }
- break;
-
- #ifdef DEBUG
- default:
- puts("Invalid window placement!!!");
- *x_ret = 0;
- *y_ret = 0;
- #endif
- }
-
- if (*x_ret + width > scr->scr_width)
- *x_ret = scr->scr_width - width;
- if (*x_ret < 0)
- *x_ret = 0;
-
- if (*y_ret + height > scr->scr_height)
- *y_ret = scr->scr_height - height;
- if (*y_ret < 0)
- *y_ret = 0;
- }
-
-
-