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wmaker/src/switchpanel.c
Christophe CURIS 9f8363dc14 WMaker: rationalised the use of flags for window icons in the switchpanel
The flags were stored as 'char' but it is more logical to use int which is
"the natural size for integer on the host" and may help future evolution
if new flags are added;

The array is created with an initial size consistent with the number of
element we feed it with in 'makeWindowFlagsArray', this avoids a bunch
of realloc;

Fixed the type conversion that was not right, as pointed by clang.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
2014-05-09 20:44:38 +01:00

743 lines
18 KiB
C

/*
* Window Maker window manager
*
* Copyright (c) 1997-2004 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "wconfig.h"
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "WindowMaker.h"
#include "screen.h"
#include "framewin.h"
#include "icon.h"
#include "window.h"
#include "defaults.h"
#include "switchpanel.h"
#include "misc.h"
#include "xinerama.h"
#ifdef USE_XSHAPE
#include <X11/extensions/shape.h>
#endif
struct SwitchPanel {
WScreen *scr;
WMWindow *win;
WMFrame *iconBox;
WMArray *icons;
WMArray *images;
WMArray *windows;
WMArray *flags;
RImage *bg;
int current;
int firstVisible;
int visibleCount;
WMLabel *label;
RImage *tileTmp;
RImage *tile;
WMFont *font;
WMColor *white;
};
#define BORDER_SPACE 10
#define ICON_SIZE 48
#define ICON_TILE_SIZE 64
#define LABEL_HEIGHT 25
#define SCREEN_BORDER_SPACING 2*20
#define SCROLL_STEPS (ICON_TILE_SIZE/2)
#define ICON_SELECTED (1<<1)
#define ICON_DIM (1<<2)
static int canReceiveFocus(WWindow *wwin)
{
if (wwin->frame->workspace != w_global.workspace.current)
return 0;
if (wPreferences.cycle_active_head_only &&
wGetHeadForWindow(wwin) != wGetHeadForPointerLocation(wwin->screen_ptr))
return 0;
if (WFLAGP(wwin, no_focusable))
return 0;
if (!wwin->flags.mapped) {
if (!wwin->flags.shaded && !wwin->flags.miniaturized && !wwin->flags.hidden)
return 0;
else
return -1;
}
return 1;
}
static Bool sameWindowClass(WWindow *wwin, WWindow *curwin)
{
if (!wwin->wm_class || !curwin->wm_class)
return False;
if (strcmp(wwin->wm_class, curwin->wm_class))
return False;
return True;
}
static void changeImage(WSwitchPanel *panel, int idecks, int selected, Bool dim, Bool force)
{
WMFrame *icon = NULL;
RImage *image = NULL;
int flags;
int desired = 0;
/* This whole function is a no-op if we aren't drawing the panel */
if (!wPreferences.swtileImage)
return;
icon = WMGetFromArray(panel->icons, idecks);
image = WMGetFromArray(panel->images, idecks);
flags = (int) (uintptr_t) WMGetFromArray(panel->flags, idecks);
if (selected)
desired |= ICON_SELECTED;
if (dim)
desired |= ICON_DIM;
if (flags == desired && !force)
return;
WMReplaceInArray(panel->flags, idecks, (void *) (uintptr_t) desired);
if (!panel->bg && !panel->tile && !selected)
WMSetFrameRelief(icon, WRFlat);
if (image && icon) {
RImage *back;
int opaq = (dim) ? 75 : 255;
RImage *tile;
WMPoint pos;
Pixmap p;
if (canReceiveFocus(WMGetFromArray(panel->windows, idecks)) < 0)
opaq = 50;
pos = WMGetViewPosition(WMWidgetView(icon));
back = panel->tileTmp;
if (panel->bg) {
RCopyArea(back, panel->bg,
BORDER_SPACE + pos.x - panel->firstVisible * ICON_TILE_SIZE,
BORDER_SPACE + pos.y, back->width, back->height, 0, 0);
} else {
RColor color;
WMScreen *wscr = WMWidgetScreen(icon);
color.red = 255;
color.red = WMRedComponentOfColor(WMGrayColor(wscr)) >> 8;
color.green = WMGreenComponentOfColor(WMGrayColor(wscr)) >> 8;
color.blue = WMBlueComponentOfColor(WMGrayColor(wscr)) >> 8;
RFillImage(back, &color);
}
if (selected) {
tile = panel->tile;
RCombineArea(back, tile, 0, 0, tile->width, tile->height,
(back->width - tile->width) / 2, (back->height - tile->height) / 2);
}
RCombineAreaWithOpaqueness(back, image, 0, 0, image->width, image->height,
(back->width - image->width) / 2, (back->height - image->height) / 2,
opaq);
RConvertImage(panel->scr->rcontext, back, &p);
XSetWindowBackgroundPixmap(dpy, WMWidgetXID(icon), p);
XClearWindow(dpy, WMWidgetXID(icon));
XFreePixmap(dpy, p);
}
if (!panel->bg && !panel->tile && selected)
WMSetFrameRelief(icon, WRSimple);
}
static void addIconForWindow(WSwitchPanel *panel, WMWidget *parent, WWindow *wwin, int x, int y)
{
WMFrame *icon = WMCreateFrame(parent);
RImage *image = NULL;
WMSetFrameRelief(icon, WRFlat);
WMResizeWidget(icon, ICON_TILE_SIZE, ICON_TILE_SIZE);
WMMoveWidget(icon, x, y);
if (!WFLAGP(wwin, always_user_icon) && wwin->net_icon_image)
image = RRetainImage(wwin->net_icon_image);
/* get_icon_image() includes the default icon image */
if (!image)
image = get_icon_image(panel->scr, wwin->wm_instance, wwin->wm_class, ICON_TILE_SIZE);
/* We must resize the icon size (~64) to the switchpanel icon size (~48) */
image = wIconValidateIconSize(image, ICON_SIZE);
WMAddToArray(panel->images, image);
WMAddToArray(panel->icons, icon);
}
static void scrollIcons(WSwitchPanel *panel, int delta)
{
int nfirst = panel->firstVisible + delta;
int i;
int count = WMGetArrayItemCount(panel->windows);
Bool dim;
if (count <= panel->visibleCount)
return;
if (nfirst < 0)
nfirst = 0;
else if (nfirst >= count - panel->visibleCount)
nfirst = count - panel->visibleCount;
if (nfirst == panel->firstVisible)
return;
WMMoveWidget(panel->iconBox, -nfirst * ICON_TILE_SIZE, 0);
panel->firstVisible = nfirst;
for (i = panel->firstVisible; i < panel->firstVisible + panel->visibleCount; i++) {
if (i == panel->current)
continue;
dim = ((int) (uintptr_t) WMGetFromArray(panel->flags, i) & ICON_DIM);
changeImage(panel, i, 0, dim, True);
}
}
/*
* 0 1 2
* 3 4 5
* 6 7 8
*/
static RImage *assemblePuzzleImage(RImage **images, int width, int height)
{
RImage *img = RCreateImage(width, height, 1);
RImage *tmp;
int tw, th;
RColor color;
if (!img)
return NULL;
color.red = 0;
color.green = 0;
color.blue = 0;
color.alpha = 255;
RFillImage(img, &color);
tw = width - images[0]->width - images[2]->width;
th = height - images[0]->height - images[6]->height;
if (tw <= 0 || th <= 0)
return NULL;
/* top */
if (tw > 0) {
tmp = RSmoothScaleImage(images[1], tw, images[1]->height);
RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, 0);
RReleaseImage(tmp);
}
/* bottom */
if (tw > 0) {
tmp = RSmoothScaleImage(images[7], tw, images[7]->height);
RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[6]->width, height - images[6]->height);
RReleaseImage(tmp);
}
/* left */
if (th > 0) {
tmp = RSmoothScaleImage(images[3], images[3]->width, th);
RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, 0, images[0]->height);
RReleaseImage(tmp);
}
/* right */
if (th > 0) {
tmp = RSmoothScaleImage(images[5], images[5]->width, th);
RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, width - images[5]->width, images[2]->height);
RReleaseImage(tmp);
}
/* center */
if (tw > 0 && th > 0) {
tmp = RSmoothScaleImage(images[4], tw, th);
RCopyArea(img, tmp, 0, 0, tmp->width, tmp->height, images[0]->width, images[0]->height);
RReleaseImage(tmp);
}
/* corners */
RCopyArea(img, images[0], 0, 0, images[0]->width, images[0]->height, 0, 0);
RCopyArea(img, images[2], 0, 0, images[2]->width, images[2]->height, width - images[2]->width, 0);
RCopyArea(img, images[6], 0, 0, images[6]->width, images[6]->height, 0, height - images[6]->height);
RCopyArea(img, images[8], 0, 0, images[8]->width, images[8]->height,
width - images[8]->width, height - images[8]->height);
return img;
}
static RImage *createBackImage(int width, int height)
{
return assemblePuzzleImage(wPreferences.swbackImage, width, height);
}
static RImage *getTile(void)
{
RImage *stile;
if (!wPreferences.swtileImage)
return NULL;
stile = RScaleImage(wPreferences.swtileImage, ICON_TILE_SIZE, ICON_TILE_SIZE);
if (!stile)
return wPreferences.swtileImage;
return stile;
}
static void drawTitle(WSwitchPanel *panel, int idecks, const char *title)
{
char *ntitle;
int width = WMWidgetWidth(panel->win);
int x;
if (title)
ntitle = ShrinkString(panel->font, title, width - 2 * BORDER_SPACE);
else
ntitle = NULL;
if (panel->bg) {
if (ntitle) {
if (strcmp(ntitle, title) != 0) {
x = BORDER_SPACE;
} else {
int w = WMWidthOfString(panel->font, ntitle, strlen(ntitle));
x = BORDER_SPACE + (idecks - panel->firstVisible) * ICON_TILE_SIZE +
ICON_TILE_SIZE / 2 - w / 2;
if (x < BORDER_SPACE)
x = BORDER_SPACE;
else if (x + w > width - BORDER_SPACE)
x = width - BORDER_SPACE - w;
}
}
XClearWindow(dpy, WMWidgetXID(panel->win));
if (ntitle)
WMDrawString(panel->scr->wmscreen,
WMWidgetXID(panel->win),
panel->white, panel->font,
x,
WMWidgetHeight(panel->win) - BORDER_SPACE - LABEL_HEIGHT +
WMFontHeight(panel->font) / 2, ntitle, strlen(ntitle));
} else {
if (ntitle)
WMSetLabelText(panel->label, ntitle);
}
if (ntitle)
free(ntitle);
}
static WMArray *makeWindowListArray(WWindow *curwin, int include_unmapped, Bool class_only)
{
WMArray *windows = WMCreateArray(10);
int fl;
WWindow *wwin;
for (fl = 0; fl < 2; fl++) {
for (wwin = curwin; wwin; wwin = wwin->prev) {
if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
(wwin->flags.mapped || include_unmapped)) {
if (class_only)
if (!sameWindowClass(wwin, curwin))
continue;
if (!WFLAGP(wwin, skip_switchpanel))
WMAddToArray(windows, wwin);
}
}
wwin = curwin;
/* start over from the beginning of the list */
while (wwin->next)
wwin = wwin->next;
for (wwin = curwin; wwin && wwin != curwin; wwin = wwin->prev) {
if (((!fl && canReceiveFocus(wwin) > 0) || (fl && canReceiveFocus(wwin) < 0)) &&
(wwin->flags.mapped || include_unmapped)) {
if (class_only)
if (!sameWindowClass(wwin, curwin))
continue;
if (!WFLAGP(wwin, skip_switchpanel))
WMAddToArray(windows, wwin);
}
}
}
return windows;
}
static WMArray *makeWindowFlagsArray(int count)
{
WMArray *flags = WMCreateArray(count);
int i;
for (i = 0; i < count; i++)
WMAddToArray(flags, (void *) 0);
return flags;
}
WSwitchPanel *wInitSwitchPanel(WScreen *scr, WWindow *curwin, Bool class_only)
{
WWindow *wwin;
WSwitchPanel *panel = wmalloc(sizeof(WSwitchPanel));
WMFrame *viewport;
int i, width, height, iconsThatFitCount, count;
WMRect rect = wGetRectForHead(scr, wGetHeadForPointerLocation(scr));
panel->scr = scr;
panel->windows = makeWindowListArray(curwin, wPreferences.swtileImage != NULL, class_only);
count = WMGetArrayItemCount(panel->windows);
if (count)
panel->flags = makeWindowFlagsArray(count);
if (count == 0) {
WMFreeArray(panel->windows);
wfree(panel);
return NULL;
}
width = ICON_TILE_SIZE * count;
iconsThatFitCount = count;
if (width > rect.size.width) {
iconsThatFitCount = (rect.size.width - SCREEN_BORDER_SPACING) / ICON_TILE_SIZE;
width = iconsThatFitCount * ICON_TILE_SIZE;
}
panel->visibleCount = iconsThatFitCount;
if (!wPreferences.swtileImage)
return panel;
height = LABEL_HEIGHT + ICON_TILE_SIZE;
panel->tileTmp = RCreateImage(ICON_TILE_SIZE, ICON_TILE_SIZE, 1);
panel->tile = getTile();
if (panel->tile && wPreferences.swbackImage[8])
panel->bg = createBackImage(width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
if (!panel->tileTmp || !panel->tile) {
if (panel->bg)
RReleaseImage(panel->bg);
panel->bg = NULL;
if (panel->tile)
RReleaseImage(panel->tile);
panel->tile = NULL;
if (panel->tileTmp)
RReleaseImage(panel->tileTmp);
panel->tileTmp = NULL;
}
panel->white = WMWhiteColor(scr->wmscreen);
panel->font = WMBoldSystemFontOfSize(scr->wmscreen, 12);
panel->icons = WMCreateArray(count);
panel->images = WMCreateArray(count);
panel->win = WMCreateWindow(scr->wmscreen, "");
if (!panel->bg) {
WMFrame *frame = WMCreateFrame(panel->win);
WMColor *darkGray = WMDarkGrayColor(scr->wmscreen);
WMSetFrameRelief(frame, WRSimple);
WMSetViewExpandsToParent(WMWidgetView(frame), 0, 0, 0, 0);
panel->label = WMCreateLabel(panel->win);
WMResizeWidget(panel->label, width, LABEL_HEIGHT);
WMMoveWidget(panel->label, BORDER_SPACE, BORDER_SPACE + ICON_TILE_SIZE + 5);
WMSetLabelRelief(panel->label, WRSimple);
WMSetWidgetBackgroundColor(panel->label, darkGray);
WMSetLabelFont(panel->label, panel->font);
WMSetLabelTextColor(panel->label, panel->white);
WMReleaseColor(darkGray);
height += 5;
}
WMResizeWidget(panel->win, width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
viewport = WMCreateFrame(panel->win);
WMResizeWidget(viewport, width, ICON_TILE_SIZE);
WMMoveWidget(viewport, BORDER_SPACE, BORDER_SPACE);
WMSetFrameRelief(viewport, WRFlat);
panel->iconBox = WMCreateFrame(viewport);
WMMoveWidget(panel->iconBox, 0, 0);
WMResizeWidget(panel->iconBox, ICON_TILE_SIZE * count, ICON_TILE_SIZE);
WMSetFrameRelief(panel->iconBox, WRFlat);
WM_ITERATE_ARRAY(panel->windows, wwin, i) {
addIconForWindow(panel, panel->iconBox, wwin, i * ICON_TILE_SIZE, 0);
}
WMMapSubwidgets(panel->win);
WMRealizeWidget(panel->win);
WM_ITERATE_ARRAY(panel->windows, wwin, i) {
changeImage(panel, i, 0, False, True);
}
if (panel->bg) {
Pixmap pixmap, mask;
RConvertImageMask(scr->rcontext, panel->bg, &pixmap, &mask, 250);
XSetWindowBackgroundPixmap(dpy, WMWidgetXID(panel->win), pixmap);
#ifdef USE_XSHAPE
if (mask && w_global.xext.shape.supported)
XShapeCombineMask(dpy, WMWidgetXID(panel->win), ShapeBounding, 0, 0, mask, ShapeSet);
#endif
if (pixmap)
XFreePixmap(dpy, pixmap);
if (mask)
XFreePixmap(dpy, mask);
}
{
WMPoint center;
center = wGetPointToCenterRectInHead(scr, wGetHeadForPointerLocation(scr),
width + 2 * BORDER_SPACE, height + 2 * BORDER_SPACE);
WMMoveWidget(panel->win, center.x, center.y);
}
panel->current = WMGetFirstInArray(panel->windows, curwin);
if (panel->current >= 0)
changeImage(panel, panel->current, 1, False, False);
WMMapWidget(panel->win);
return panel;
}
void wSwitchPanelDestroy(WSwitchPanel *panel)
{
int i;
RImage *image;
if (panel->win) {
Window info_win = panel->scr->info_window;
XEvent ev;
ev.xclient.type = ClientMessage;
ev.xclient.message_type = w_global.atom.wm.ignore_focus_events;
ev.xclient.format = 32;
ev.xclient.data.l[0] = True;
XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
WMUnmapWidget(panel->win);
ev.xclient.data.l[0] = False;
XSendEvent(dpy, info_win, True, EnterWindowMask, &ev);
}
if (panel->images) {
WM_ITERATE_ARRAY(panel->images, image, i) {
if (image)
RReleaseImage(image);
}
WMFreeArray(panel->images);
}
if (panel->win)
WMDestroyWidget(panel->win);
if (panel->icons)
WMFreeArray(panel->icons);
if (panel->flags)
WMFreeArray(panel->flags);
WMFreeArray(panel->windows);
if (panel->tile)
RReleaseImage(panel->tile);
if (panel->tileTmp)
RReleaseImage(panel->tileTmp);
if (panel->bg)
RReleaseImage(panel->bg);
if (panel->font)
WMReleaseFont(panel->font);
if (panel->white)
WMReleaseColor(panel->white);
wfree(panel);
}
WWindow *wSwitchPanelSelectNext(WSwitchPanel *panel, int back, int ignore_minimized, Bool class_only)
{
WWindow *wwin, *curwin, *tmpwin;
int count = WMGetArrayItemCount(panel->windows);
int orig = panel->current;
int i;
Bool dim = False;
if (count == 0)
return NULL;
if (!wPreferences.cycle_ignore_minimized)
ignore_minimized = False;
if (ignore_minimized && canReceiveFocus(WMGetFromArray(panel->windows, (count + panel->current) % count)) < 0)
ignore_minimized = False;
curwin = WMGetFromArray(panel->windows, orig);
do {
do {
if (back)
panel->current--;
else
panel->current++;
panel->current= (count + panel->current) % count;
wwin = WMGetFromArray(panel->windows, panel->current);
if (!class_only)
break;
if (panel->current == orig)
break;
} while (!sameWindowClass(wwin, curwin));
} while (ignore_minimized && panel->current != orig && canReceiveFocus(wwin) < 0);
WM_ITERATE_ARRAY(panel->windows, tmpwin, i) {
if (i == panel->current)
continue;
if (!class_only || sameWindowClass(tmpwin, curwin))
changeImage(panel, i, 0, False, False);
else {
if (i == orig)
dim = True;
changeImage(panel, i, 0, True, False);
}
}
if (panel->current < panel->firstVisible)
scrollIcons(panel, panel->current - panel->firstVisible);
else if (panel->current - panel->firstVisible >= panel->visibleCount)
scrollIcons(panel, panel->current - panel->firstVisible - panel->visibleCount + 1);
if (panel->win) {
drawTitle(panel, panel->current, wwin->frame->title);
if (panel->current != orig)
changeImage(panel, orig, 0, dim, False);
changeImage(panel, panel->current, 1, False, False);
}
return wwin;
}
WWindow *wSwitchPanelSelectFirst(WSwitchPanel *panel, int back)
{
WWindow *wwin;
int count = WMGetArrayItemCount(panel->windows);
char *title;
int i;
if (count == 0)
return NULL;
if (back) {
panel->current = count - 1;
scrollIcons(panel, count);
} else {
panel->current = 0;
scrollIcons(panel, -count);
}
wwin = WMGetFromArray(panel->windows, panel->current);
title = wwin->frame->title;
if (panel->win) {
for (WMArrayFirst(panel->windows, &(i)); (i) != WANotFound; WMArrayNext(panel->windows, &(i)))
changeImage(panel, i, i == panel->current, False, False);
drawTitle(panel, panel->current, title);
}
return wwin;
}
WWindow *wSwitchPanelHandleEvent(WSwitchPanel *panel, XEvent *event)
{
WMFrame *icon;
int i;
int focus = -1;
if (!panel->win)
return NULL;
if (event->type == MotionNotify) {
WM_ITERATE_ARRAY(panel->icons, icon, i) {
if (WMWidgetXID(icon) == event->xmotion.window) {
focus = i;
break;
}
}
}
if (focus >= 0 && panel->current != focus) {
WWindow *wwin;
WM_ITERATE_ARRAY(panel->windows, wwin, i) {
changeImage(panel, i, i == focus, False, False);
}
panel->current = focus;
wwin = WMGetFromArray(panel->windows, focus);
drawTitle(panel, panel->current, wwin->frame->title);
return wwin;
}
return NULL;
}
Window wSwitchPanelGetWindow(WSwitchPanel *swpanel)
{
if (!swpanel->win)
return None;
return WMWidgetXID(swpanel->win);
}