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Copy pathFrame.C
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Frame.C
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// Frame.C
//
// CHANGES
// 20090927: Some modifications by Michael A. Losh, tagged "ML" below,
// or bracketed by TOPSIDE manifest constant
// 20160402: some tests clarified (more parentheses ...); dentonlt
// 20190303: Added: DoNotWarp variable to overide mouse cursor warping if desired.
// Added: Double click titlebar to toggle window max size and normal size.
// Compiler Warnings: Moved break statements to their own lines. Rich
#define FL_INTERNALS 1
#include "config.h"
#include "Frame.H"
#include "Desktop.H"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <FL/fl_draw.H>
#ifndef HAVE_XFT
#include "Rotated.H" // text rotation code; not supported by non-Xft FLTK 1.3.x
#endif
// From Hotkeys.C
extern void ToggleWinMax(void);
static Atom wm_state = 0;
static Atom wm_change_state;
static Atom wm_protocols;
static Atom wm_delete_window;
static Atom wm_take_focus;
static Atom wm_save_yourself;
static Atom wm_colormap_windows;
static Atom _motif_wm_hints;
static Atom kwm_win_decoration;
#if DESKTOPS
static Atom kwm_win_desktop;
static Atom kwm_win_sticky;
#endif
//static Atom wm_client_leader;
static Atom _wm_quit_app;
// these are set by initialize in main.C:
Atom _win_hints;
Atom _win_state;
#if DESKTOPS
extern Atom _win_workspace;
#endif
#ifdef SHOW_CLOCK
extern char clock_buf[];
extern int clock_alarm_on;
#endif
// Set by main in main.C:
extern int DoNotWarp; // Used to override mouse pointer warping if environmental variable NOWARP exists.
static const int XEventMask =
ExposureMask|StructureNotifyMask
|KeyPressMask|KeyReleaseMask|KeymapStateMask|FocusChangeMask
|ButtonPressMask|ButtonReleaseMask
|EnterWindowMask|LeaveWindowMask
|PointerMotionMask|SubstructureRedirectMask|SubstructureNotifyMask;
extern Fl_Window* Root;
Frame* Frame::active_;
Frame* Frame::first;
static inline int max(int a, int b) {return a > b ? a : b;}
static inline int min(int a, int b) {return a < b ? a : b;}
////////////////////////////////////////////////////////////////
// The constructor is by far the most complex part, as it collects
// all the scattered pieces of information about the window that
// X has and uses them to initialize the structure, position the
// window, and then finally create it.
int dont_set_event_mask = 0; // used by FrameWindow
// "existing" is a pointer to an XWindowAttributes structure that is
// passed for an already-existing window when the window manager is
// starting up. If so we don't want to alter the state, size, or
// position. If null than this is a MapRequest of a new window.
Frame::Frame(XWindow window, XWindowAttributes* existing) :
Fl_Window(0,0),
window_(window),
state_flags_(0),
flags_(0),
transient_for_xid(None),
transient_for_(0),
revert_to(active_),
colormapWinCount(0),
close_button(BUTTON_LEFT,BUTTON_TOP,BUTTON_W,BUTTON_H,"X"),
iconize_button(BUTTON_LEFT,BUTTON_TOP,BUTTON_W,BUTTON_H,"i"),
max_h_button(BUTTON_LEFT,BUTTON_TOP+3*BUTTON_H,BUTTON_W,BUTTON_H,"h"),
max_w_button(BUTTON_LEFT,BUTTON_TOP+BUTTON_H,BUTTON_W,BUTTON_H,"w"),
min_w_button(BUTTON_LEFT,BUTTON_TOP+2*BUTTON_H,BUTTON_W,BUTTON_H,"W")
{
close_button.callback(button_cb_static);
iconize_button.callback(button_cb_static);
max_h_button.type(FL_TOGGLE_BUTTON);
max_h_button.callback(button_cb_static);
max_w_button.type(FL_TOGGLE_BUTTON);
max_w_button.callback(button_cb_static);
min_w_button.type(FL_TOGGLE_BUTTON);
min_w_button.callback(button_cb_static);
end();
box(FL_NO_BOX); // relies on background color erasing interior
// ML -------------------------------
#ifdef ML_TITLEBAR_COLOR
char * titlebar_color_str = getenv("FLWM_TITLEBAR_COLOR");
int r = 0x90, g = 0x90, b = 0x90;
int fields = 0;
if (titlebar_color_str) {
fields = sscanf(titlebar_color_str, "%02X:%02X:%02X", &r, &g, &b);
}
if (titlebar_color_str && (fields == 3)) {
Fl::set_color(FL_BACKGROUND2_COLOR, r, g, b);
}
else {
Fl::set_color(FL_BACKGROUND2_COLOR, 0x90, 0x90, 0x90);
}
#else
Fl::set_color(FL_BACKGROUND2_COLOR, 0x90, 0x90, 0x90);
#endif
// --------------------------------ML
labelcolor(FL_FOREGROUND_COLOR);
next = first;
first = this;
// do this asap so we don't miss any events...
if (!dont_set_event_mask)
XSelectInput(fl_display, window_,
ColormapChangeMask | PropertyChangeMask | FocusChangeMask
);
if (!wm_state) {
// allocate all the atoms if this is the first time
wm_state = XInternAtom(fl_display, "WM_STATE", 0);
wm_change_state = XInternAtom(fl_display, "WM_CHANGE_STATE", 0);
wm_protocols = XInternAtom(fl_display, "WM_PROTOCOLS", 0);
wm_delete_window = XInternAtom(fl_display, "WM_DELETE_WINDOW", 0);
wm_take_focus = XInternAtom(fl_display, "WM_TAKE_FOCUS", 0);
wm_save_yourself = XInternAtom(fl_display, "WM_SAVE_YOURSELF", 0);
wm_colormap_windows = XInternAtom(fl_display, "WM_COLORMAP_WINDOWS",0);
_motif_wm_hints = XInternAtom(fl_display, "_MOTIF_WM_HINTS", 0);
kwm_win_decoration = XInternAtom(fl_display, "KWM_WIN_DECORATION", 0);
#if DESKTOPS
kwm_win_desktop = XInternAtom(fl_display, "KWM_WIN_DESKTOP", 0);
kwm_win_sticky = XInternAtom(fl_display, "KWM_WIN_STICKY", 0);
#endif
// wm_client_leader = XInternAtom(fl_display, "WM_CLIENT_LEADER", 0);
_wm_quit_app = XInternAtom(fl_display, "_WM_QUIT_APP", 0);
}
#ifdef TOPSIDE
label_x = label_h = label_w = 0;
#else
label_y = label_h = label_w = 0;
#endif
getLabel();
// getIconLabel();
{XWindowAttributes attr;
if (existing) attr = *existing;
else {
// put in some legal values in case XGetWindowAttributes fails:
attr.x = attr.y = 0; attr.width = attr.height = 100;
attr.colormap = fl_colormap;
attr.border_width = 0;
XGetWindowAttributes(fl_display, window, &attr);
}
left = top = dwidth = dheight = 0; // pretend border is zero-width for now
app_border_width = attr.border_width;
x(attr.x+app_border_width); restore_x = x();
y(attr.y+app_border_width); restore_y = y();
w(attr.width); restore_w = w();
h(attr.height); restore_h = h();
colormap = attr.colormap;}
getColormaps();
//group_ = 0;
{XWMHints* hints = XGetWMHints(fl_display, window_);
if (hints) {
if ((hints->flags & InputHint) && !hints->input) set_flag(NO_FOCUS);
//if (hints && hints->flags&WindowGroupHint) group_ = hints->window_group;
}
switch (getIntProperty(wm_state, wm_state, 0)) {
case NormalState:
state_ = NORMAL; break;
case IconicState:
state_ = ICONIC; break;
// X also defines obsolete values ZoomState and InactiveState
default:
if ((hints && (hints->flags&StateHint)) && (hints->initial_state==IconicState))
state_ = ICONIC;
else
state_ = NORMAL;
}
if (hints) XFree(hints);}
// Maya sets this, seems to mean the same as group:
// if (!group_) group_ = getIntProperty(wm_client_leader, XA_WINDOW);
XGetTransientForHint(fl_display, window_, &transient_for_xid);
getProtocols();
getMotifHints();
// get Gnome hints:
int p = getIntProperty(_win_hints, XA_CARDINAL);
if (p&1) set_flag(NO_FOCUS); // WIN_HINTS_SKIP_FOCUS
// if (p&2) // WIN_HINTS_SKIP_WINLIST
// if (p&4) // WIN_HINTS_SKIP_TASKBAR
// if (p&8) ... // WIN_HINTS_GROUP_TRANSIENT
if (p&16) set_flag(CLICK_TO_FOCUS); // WIN_HINTS_FOCUS_ON_CLICK
// get KDE hints:
p = getIntProperty(kwm_win_decoration, kwm_win_decoration, 1);
if (!(p&3)) set_flag(NO_BORDER);
else if (p & 2) set_flag(THIN_BORDER);
if (p & 256) set_flag(NO_FOCUS);
fix_transient_for();
if (transient_for()) {
if (state_ == NORMAL) state_ = transient_for()->state_;
#if DESKTOPS
desktop_ = transient_for()->desktop_;
#endif
}
#if DESKTOPS
// see if anybody thinks window is "sticky:"
else if ((getIntProperty(_win_state, XA_CARDINAL) & 1) // WIN_STATE_STICKY
|| getIntProperty(kwm_win_sticky, kwm_win_sticky)) {
desktop_ = 0;
} else {
// get the desktop from either Gnome or KDE (Gnome takes precedence):
p = getIntProperty(_win_workspace, XA_CARDINAL, -1) + 1; // Gnome desktop
if (p <= 0) p = getIntProperty(kwm_win_desktop, kwm_win_desktop);
if ((p > 0) && (p < 25))
desktop_ = Desktop::number(p, 1);
else
desktop_ = Desktop::current();
}
if (desktop_ && (desktop_ != Desktop::current()))
if (state_ == NORMAL) state_ = OTHER_DESKTOP;
#endif
int autoplace = getSizes();
// some Motif programs assumme this will force the size to conform :-(
if (w() < min_w || h() < min_h) {
if (w() < min_w) w(min_w);
if (h() < min_h) h(min_h);
XResizeWindow(fl_display, window_, w(), h());
}
// try to detect programs that think "transient_for" means "no border":
if (transient_for_xid && !label() && !flag(NO_BORDER)) {
set_flag(THIN_BORDER);
}
updateBorder();
show_hide_buttons();
if (autoplace && !existing && !(transient_for() && (x() || y()))) {
place_window();
}
// move window so contents and border are visible:
x(force_x_onscreen(x(), w()));
y(force_y_onscreen(y(), h()));
// guess some values for the "restore" fields, if already maximized:
if (max_w_button.value()) {
restore_w = min_w + ((w()-dwidth-min_w)/2/inc_w) * inc_w;
restore_x = x()+left + (w()-dwidth-restore_w)/2;
}
if (max_h_button.value()) {
restore_h = min_h + ((h()-dheight-min_h)/2/inc_h) * inc_h;
restore_y = y()+top + (h()-dheight-restore_h)/2;
}
const int mask = CWBorderPixel | CWColormap | CWEventMask | CWBitGravity
| CWBackPixel | CWOverrideRedirect;
XSetWindowAttributes sattr;
sattr.event_mask = XEventMask;
sattr.colormap = fl_colormap;
sattr.border_pixel = fl_xpixel(FL_GRAY0);
sattr.bit_gravity = NorthWestGravity;
sattr.override_redirect = 1;
sattr.background_pixel = fl_xpixel(FL_GRAY);
Fl_X::set_xid(this, XCreateWindow(fl_display,
RootWindow(fl_display,fl_screen),
x(), y(), w(), h(), 0,
fl_visual->depth,
InputOutput,
fl_visual->visual,
mask, &sattr));
setStateProperty();
if (!dont_set_event_mask) XAddToSaveSet(fl_display, window_);
if (existing) set_state_flag(IGNORE_UNMAP);
XReparentWindow(fl_display, window_, fl_xid(this), left, top);
XSetWindowBorderWidth(fl_display, window_, 0);
if (state_ == NORMAL) XMapWindow(fl_display, window_);
sendConfigureNotify(); // many apps expect this even if window size unchanged
#if CLICK_RAISES || CLICK_TO_TYPE
if (!dont_set_event_mask)
XGrabButton(fl_display, AnyButton, AnyModifier, window, False,
ButtonPressMask, GrabModeSync, GrabModeAsync, None, None);
#endif
if (state_ == NORMAL) {
XMapWindow(fl_display, fl_xid(this));
if (!existing) activate_if_transient();
}
set_visible();
}
#if SMART_PLACEMENT
// Helper functions for "smart" window placement.
int overlap1(int p1, int l1, int p2, int l2) {
int ret = 0;
if(p1 <= p2 && p2 <= p1 + l1) {
ret = min(p1 + l1 - p2, l2);
} else if (p2 <= p1 && p1 <= p2 + l2) {
ret = min(p2 + l2 - p1, l1);
}
return ret;
}
int overlap(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2) {
return (overlap1(x1, w1, x2, w2) * overlap1(y1, h1, y2, h2));
}
// Compute the overlap with existing windows.
// For normal windows the overlapping area is taken into account plus a
// constant value for every overlapping window.
// The active window counts twice.
// For iconic windows half the overlapping area is taken into account.
int getOverlap(int x, int y, int w, int h, Frame *first, Frame *self) {
int ret = 0;
short state;
for (Frame* f = first; f; f = f->next) {
if (f != self) {
state = f->state();
if (state == NORMAL || state == ICONIC) {
int o = overlap(x, y, w, h, f->x(), f->y(), f->w(), f->h());
if (state == NORMAL) {
ret = ret + o + (o>0?40000:0) + (o * f->active());
} else if (state == ICONIC) {
ret = ret + o/2;
}
}
}
}
return ret;
}
// autoplacement (brute force version for now)
void Frame::place_window() {
int min_overlap = -1;
int tmp_x, tmp_y, tmp_o;
int best_x = 0;
int best_y = 0;
int _w = w();
int _h = h();
int max_x = Root->x() + Root->w();
int max_y = Root->y() + Root->h();
Frame *f1 = Frame::first;
for(int i=0;; i++) {
if (i==0) {
tmp_x = 0;
} else if (i==1) {
tmp_x = max_x - _w;
} else {
if (f1 == this) {
f1 = f1->next;
}
if (!f1) {
break;
}
tmp_x = f1->x() + f1->w();
f1 = f1->next;
}
Frame *f2 = Frame::first;
for(int j=0;; j++) {
if (j==0) {
tmp_y = 0;
} else if (j==1) {
tmp_y = max_y - _h;
} else {
if (f2 == this) {
f2 = f2->next;
}
if (!f2) {
break;
}
tmp_y = f2->y() + f2->h();
f2 = f2->next;
}
if ((tmp_x + _w <= max_x) && (tmp_y + _h <= max_y)) {
tmp_o = getOverlap(tmp_x, tmp_y, _w, _h, Frame::first, this);
if(tmp_o < min_overlap || min_overlap < 0) {
best_x = tmp_x;
best_y = tmp_y;
min_overlap = tmp_o;
if (min_overlap == 0) {
break;
}
}
}
}
if (min_overlap == 0) {
break;
}
}
x(best_x);
y(best_y);
}
#else
// autoplacement (stupid version for now)
void Frame::place_window() {
x(Root->x()+(Root->w()-w())/2);
y(Root->y()+(Root->h()-h())/2);
// move it until it does not hide any existing windows:
const int delta = TITLE_WIDTH+LEFT;
for (Frame* f = next; f; f = f->next) {
if (f->x()+delta > x() && f->y()+delta > y() &&
f->x()+f->w()-delta < x()+w() && f->y()+f->h()-delta < y()+h()) {
x(max(x(),f->x()+delta));
y(max(y(),f->y()+delta));
f = this;
}
}
}
#endif
// modify the passed X & W to a legal horizontal window position
int Frame::force_x_onscreen(int X, int W) {
// force all except the black border on-screen:
X = min(X, Root->x()+Root->w()+1-W);
X = max(X, Root->x()-1);
// force the contents on-screen:
X = min(X, Root->x()+Root->w()-W+dwidth-left);
if (W-dwidth > Root->w() || h()-dheight > Root->h())
// windows bigger than the screen need title bar so they can move
X = max(X, Root->x()-LEFT);
else
X = max(X, Root->x()-left);
return X;
}
// modify the passed Y & H to a legal vertical window position:
int Frame::force_y_onscreen(int Y, int H) {
// force border (except black edge) to be on-screen:
Y = min(Y, Root->y()+Root->h()+1-H);
Y = max(Y, Root->y()-1);
// force contents to be on-screen:
Y = min(Y, Root->y()+Root->h()-H+dheight-top);
Y = max(Y, Root->y()-top);
return Y;
}
////////////////////////////////////////////////////////////////
// destructor
// The destructor is called on DestroyNotify, so I don't have to do anything
// to the contained window, which is already been destroyed.
Frame::~Frame() {
// It is possible for the frame to be destroyed while the menu is
// popped-up, and the menu will still contain a pointer to it. To
// fix this the menu checks the state_ location for a legal and
// non-withdrawn state value before doing anything. This should
// be reliable unless something reallocates the memory and writes
// a legal state value to this location:
state_ = UNMAPPED;
// remove any pointers to this:
Frame** cp; for (cp = &first; *cp; cp = &((*cp)->next))
if (*cp == this) {*cp = next; break;}
for (Frame* f = first; f; f = f->next) {
if (f->transient_for_ == this) f->transient_for_ = transient_for_;
if (f->revert_to == this) f->revert_to = revert_to;
}
throw_focus(1);
if (colormapWinCount) {
XFree((char *)colormapWindows);
delete[] window_Colormaps;
}
//if (iconlabel()) XFree((char*)iconlabel());
if (label()) XFree((char*)label());
}
////////////////////////////////////////////////////////////////
void Frame::getLabel(int del) {
char* old = (char*)label();
char* nu = del ? 0 : (char*)getProperty(XA_WM_NAME);
if (nu) {
// since many window managers print a default label when none is
// given, many programs send spaces to make a blank label. Detect
// this and make it really be blank:
char* c = nu; while (*c == ' ') c++;
if (!*c) {XFree(nu); nu = 0;}
}
if (old) {
if (nu && !strcmp(old,nu)) {XFree(nu); return;}
XFree(old);
} else {
if (!nu) return;
}
#ifdef TOPSIDE
Fl_Widget::label(nu);
if (nu) {
fl_font(TITLE_FONT_SLOT, TITLE_FONT_SIZE);
label_h = int(fl_size())+6;
} else
label_h = 0;
if (shown())// && label_w > 3 && top > 3)
XClearArea(fl_display, fl_xid(this), label_x, BUTTON_TOP, label_w, label_h, 1);
#else
Fl_Widget::label(nu);
if (nu) {
fl_font(TITLE_FONT_SLOT, TITLE_FONT_SIZE);
label_w = int(fl_width(nu))+6;
} else
label_w = 0;
if (shown() && label_h > 3 && left > 3)
XClearArea(fl_display, fl_xid(this), 1, label_y+3, left-1, label_h-3, 1);
#endif
}
////////////////////////////////////////////////////////////////
int Frame::getGnomeState(int &) {
// values for _WIN_STATE property are from Gnome WM compliance docs:
#define WIN_STATE_STICKY (1<<0) /*everyone knows sticky*/
#define WIN_STATE_MINIMIZED (1<<1) /*Reserved - definition is unclear*/
#define WIN_STATE_MAXIMIZED_VERT (1<<2) /*window in maximized V state*/
#define WIN_STATE_MAXIMIZED_HORIZ (1<<3) /*window in maximized H state*/
#define WIN_STATE_HIDDEN (1<<4) /*not on taskbar but window visible*/
#define WIN_STATE_SHADED (1<<5) /*shaded (MacOS / Afterstep style)*/
#define WIN_STATE_HID_WORKSPACE (1<<6) /*not on current desktop*/
#define WIN_STATE_HID_TRANSIENT (1<<7) /*owner of transient is hidden*/
#define WIN_STATE_FIXED_POSITION (1<<8) /*window is fixed in position even*/
#define WIN_STATE_ARRANGE_IGNORE (1<<9) /*ignore for auto arranging*/
// nyi
return 0;
}
////////////////////////////////////////////////////////////////
// Read the sizeHints, and try to remove the vast number of mistakes
// that some applications seem to do writing them.
// Returns true if autoplace should be done.
int Frame::getSizes() {
XSizeHints sizeHints;
long junk;
if (!XGetWMNormalHints(fl_display, window_, &sizeHints, &junk))
sizeHints.flags = 0;
// get the increment, use 1 if none or illegal values:
if (sizeHints.flags & PResizeInc) {
inc_w = sizeHints.width_inc; if (inc_w < 1) inc_w = 1;
inc_h = sizeHints.height_inc; if (inc_h < 1) inc_h = 1;
} else {
inc_w = inc_h = 1;
}
// get the current size of the window:
int W = w()-dwidth;
int H = h()-dheight;
// I try a lot of places to get a good minimum size value. Lots of
// programs set illegal or junk values, so getting this correct is
// difficult:
min_w = W;
min_h = H;
// guess a value for minimum size in case it is not set anywhere:
min_w = min(min_w, 4*BUTTON_H);
min_w = ((min_w+inc_w-1)/inc_w) * inc_w;
min_h = min(min_h, 4*BUTTON_H);
min_h = ((min_h+inc_h-1)/inc_h) * inc_h;
// some programs put the minimum size here:
if (sizeHints.flags & PBaseSize) {
junk = sizeHints.base_width; if (junk > 0) min_w = junk;
junk = sizeHints.base_height; if (junk > 0) min_h = junk;
}
// finally, try the actual place the minimum size should be:
if (sizeHints.flags & PMinSize) {
junk = sizeHints.min_width; if (junk > 0) min_w = junk;
junk = sizeHints.min_height; if (junk > 0) min_h = junk;
}
max_w = max_h = 0; // default maximum size is "infinity"
if (sizeHints.flags & PMaxSize) {
// Though not defined by ICCCM standard, I interpret any maximum
// size that is less than the minimum to mean "infinity". This
// allows the maximum to be set in one direction only:
junk = sizeHints.max_width;
if (junk >= min_w && junk <= W) max_w = junk;
junk = sizeHints.max_height;
if (junk >= min_h && junk <= H) max_h = junk;
}
// set the maximize buttons according to current size:
max_w_button.value(W == maximize_width());
max_h_button.value(H == maximize_height());
// Currently only 1x1 aspect works:
if (sizeHints.flags & PAspect
&& sizeHints.min_aspect.x == sizeHints.min_aspect.y)
set_flag(KEEP_ASPECT);
// another fix for gimp, which sets PPosition to 0,0:
if (x() <= 0 && y() <= 0) sizeHints.flags &= ~PPosition;
return !(sizeHints.flags & (USPosition|PPosition));
}
int max_w_switch;
// return width of contents when maximize button pressed:
int Frame::maximize_width() {
int W = max_w_switch; if (!W) W = Root->w();
#ifdef TOPSIDE
return ((W-min_w)/inc_w) * inc_w + min_w;
#else
return ((W-TITLE_WIDTH-min_w)/inc_w) * inc_w + min_w;
#endif
}
int max_h_switch;
int Frame::maximize_height() {
int H = max_h_switch; if (!H) H = Root->h();
#ifdef TOPSIDE
return ((H-TITLE_HEIGHT-min_h)/inc_h) * inc_h + min_h;
#else
return ((H-min_h)/inc_h) * inc_h + min_h;
#endif
}
////////////////////////////////////////////////////////////////
void Frame::getProtocols() {
int n; Atom* p = (Atom*)getProperty(wm_protocols, XA_ATOM, &n);
if (p) {
clear_flag(DELETE_WINDOW_PROTOCOL|TAKE_FOCUS_PROTOCOL|QUIT_PROTOCOL);
for (int i = 0; i < n; ++i) {
if (p[i] == wm_delete_window) {
set_flag(DELETE_WINDOW_PROTOCOL);
} else if (p[i] == wm_take_focus) {
set_flag(TAKE_FOCUS_PROTOCOL);
} else if (p[i] == wm_save_yourself) {
set_flag(SAVE_PROTOCOL);
} else if (p[i] == _wm_quit_app) {
set_flag(QUIT_PROTOCOL);
}
}
}
XFree((char*)p);
}
////////////////////////////////////////////////////////////////
int Frame::getMotifHints() {
long* prop = (long*)getProperty(_motif_wm_hints, _motif_wm_hints);
if (!prop) return 0;
// see /usr/include/X11/Xm/MwmUtil.h for meaning of these bits...
// prop[0] = flags (what props are specified)
// prop[1] = functions (all, resize, move, minimize, maximize, close, quit)
// prop[2] = decorations (all, border, resize, title, menu, minimize,
// maximize)
// prop[3] = input_mode (modeless, primary application modal, system modal,
// full application modal)
// prop[4] = status (tear-off window)
// Fill in the default value for missing fields:
if (!(prop[0]&1)) prop[1] = 1;
if (!(prop[0]&2)) prop[2] = 1;
// The low bit means "turn the marked items off", invert this.
// Transient windows already have size & iconize buttons turned off:
if (prop[1]&1) prop[1] = ~prop[1] & (transient_for_xid ? ~0x58 : -1);
if (prop[2]&1) prop[2] = ~prop[2] & (transient_for_xid ? ~0x60 : -1);
int old_flags = flags();
// see if they are trying to turn off border:
if (!(prop[2])) set_flag(NO_BORDER); else clear_flag(NO_BORDER);
// see if they are trying to turn off title & close box:
if (!(prop[2]&0x18)) set_flag(THIN_BORDER); else clear_flag(THIN_BORDER);
// some Motif programs use this to disable resize :-(
// and some programs change this after the window is shown (*&%$#%)
if (!(prop[1]&2) || !(prop[2]&4))
set_flag(NO_RESIZE); else clear_flag(NO_RESIZE);
// and some use this to disable the Close function. The commented
// out test is it trying to turn off the mwm menu button: it appears
// programs that do that still expect Alt+F4 to close them, so I
// leave the close on then:
if (!(prop[1]&0x20) /*|| !(prop[2]&0x10)*/)
set_flag(NO_CLOSE); else clear_flag(NO_CLOSE);
// see if they set "input hint" to non-zero:
// prop[3] should be nonzero but the only example of this I have
// found is Netscape 3.0 and it sets it to zero...
if (!shown() && (prop[0]&4) /*&& prop[3]*/) set_flag(::MODAL);
// see if it is forcing the iconize button back on. This makes
// transient_for act like group instead...
if ((prop[1]&0x8) || (prop[2]&0x20)) set_flag(ICONIZE);
// Silly 'ol Amazon paint ignores WM_DELETE_WINDOW and expects to
// get the SGI-specific "_WM_QUIT_APP". It indicates this by trying
// to turn off the close box. SIGH!!!
if (flag(QUIT_PROTOCOL) && !(prop[1]&0x20))
clear_flag(DELETE_WINDOW_PROTOCOL);
XFree((char*)prop);
return (flags() ^ old_flags);
}
////////////////////////////////////////////////////////////////
void Frame::getColormaps(void) {
if (colormapWinCount) {
XFree((char *)colormapWindows);
delete[] window_Colormaps;
}
int n;
XWindow* cw = (XWindow*)getProperty(wm_colormap_windows, XA_WINDOW, &n);
if (cw) {
colormapWinCount = n;
colormapWindows = cw;
window_Colormaps = new Colormap[n];
for (int i = 0; i < n; ++i) {
if (cw[i] == window_) {
window_Colormaps[i] = colormap;
} else {
XWindowAttributes attr;
XSelectInput(fl_display, cw[i], ColormapChangeMask);
XGetWindowAttributes(fl_display, cw[i], &attr);
window_Colormaps[i] = attr.colormap;
}
}
} else {
colormapWinCount = 0;
}
}
void Frame::installColormap() const {
for (int i = colormapWinCount; i--;)
if (colormapWindows[i] != window_ && window_Colormaps[i])
XInstallColormap(fl_display, window_Colormaps[i]);
if (colormap)
XInstallColormap(fl_display, colormap);
}
////////////////////////////////////////////////////////////////
// figure out transient_for(), based on the windows that exist, the
// transient_for and group attributes, etc:
void Frame::fix_transient_for() {
Frame* p = 0;
if (transient_for_xid && !flag(ICONIZE)) {
for (Frame* f = first; f; f = f->next) {
if (f != this && f->window_ == transient_for_xid) {p = f; break;}
}
// loops are illegal:
for (Frame* q = p; q; q = q->transient_for_) if (q == this) {p = 0; break;}
}
transient_for_ = p;
}
int Frame::is_transient_for(const Frame* f) const {
if (f)
for (Frame* p = transient_for(); p; p = p->transient_for())
if (p == f) return 1;
return 0;
}
// When a program maps or raises a window, this is called. It guesses
// if this window is in fact a modal window for the currently active
// window and if so transfers the active state to this:
// This also activates new main windows automatically
int Frame::activate_if_transient() {
if (!Fl::pushed())
if (!transient_for() || is_transient_for(active_)) return activate(1);
return 0;
}
////////////////////////////////////////////////////////////////
int Frame::activate(int warp) {
// see if a modal & newer window is up:
for (Frame* c = first; c && c != this; c = c->next)
if (c->flag(::MODAL) && c->transient_for() == this)
if (c->activate(warp)) return 1;
// ignore invisible windows:
if (state() != NORMAL || w() <= dwidth) return 0;
// always put in the colormap:
installColormap();
// move the pointer if desired:
// (note that moving the pointer is pretty much required for point-to-type
// unless you know the pointer is already in the window):
if (!warp || Fl::event_state() & (FL_BUTTON1|FL_BUTTON2|FL_BUTTON3)) {
;
} else if (warp==2 && !DoNotWarp) {
// warp to point at title:
#ifdef TOPSIDE
XWarpPointer(fl_display, None, fl_xid(this), 0,0,0,0, left/2+1,
min(label_x+label_w/2+1, label_h/2));
#else
XWarpPointer(fl_display, None, fl_xid(this), 0,0,0,0, left/2+1,
min(label_y+label_w/2+1,h()/2));
#endif
} else {
warp_pointer();
}
// skip windows that don't want focus:
if (flag(NO_FOCUS)) return 0;
// set this even if we think it already has it, this seems to fix
// bugs with Motif popups:
XSetInputFocus(fl_display, window_, RevertToPointerRoot, fl_event_time);
if (active_ != this) {
if (active_) active_->deactivate();
active_ = this;
//#ifdef ACTIVE_COLOR
// XSetWindowAttributes a;
// a.background_pixel = fl_xpixel(FL_SELECTION_COLOR);
// XChangeWindowAttributes(fl_display, fl_xid(this), CWBackPixel, &a);
// labelcolor(fl_contrast(FL_FOREGROUND_COLOR, FL_BACKGROUND_COLOR)); // ML changed color comparison
// XClearArea(fl_display, fl_xid(this), 2, 2, w()-4, h()-4, 1);
//#else
XSetWindowAttributes a;
a.background_pixel = fl_xpixel(FL_BACKGROUND2_COLOR);
XChangeWindowAttributes(fl_display, fl_xid(this), CWBackPixel, &a);
labelcolor(fl_contrast(FL_FOREGROUND_COLOR, FL_BACKGROUND2_COLOR)); // ML changed color comparison
XClearArea(fl_display, fl_xid(this), 2, 2, w()-4, h()-4, 1);
#ifdef SHOW_CLOCK
redraw();
#endif
//#endif
if (flag(TAKE_FOCUS_PROTOCOL))
sendMessage(wm_protocols, wm_take_focus);
}
return 1;
}
// this private function should only be called by constructor and if
// the window is active():
void Frame::deactivate() {
#ifdef ACTIVE_COLOR
XSetWindowAttributes a;
a.background_pixel = fl_xpixel(FL_GRAY);
XChangeWindowAttributes(fl_display, fl_xid(this), CWBackPixel, &a);
labelcolor(FL_FOREGROUND_COLOR);
XClearArea(fl_display, fl_xid(this), 2, 2, w()-4, h()-4, 1);
#else
#ifdef SHOW_CLOCK
redraw();
#endif
#endif
}
#if CLICK_RAISES || CLICK_TO_TYPE
// After the XGrabButton, the main loop will get the mouse clicks, and
// it will call here when it gets them:
void click_raise(Frame* f) {
f->activate();
#if CLICK_RAISES
if (fl_xevent->xbutton.button <= 1) f->raise();
#endif
XAllowEvents(fl_display, ReplayPointer, CurrentTime);
}
#endif
// get rid of the focus by giving it to somebody, if possible:
void Frame::throw_focus(int destructor) {
if (!active()) return;
if (!destructor) deactivate();
active_ = 0;
if (revert_to && revert_to->activate()) return;
for (Frame* f = first; f; f = f->next)
if (f != this && f->activate()) return;
}
////////////////////////////////////////////////////////////////
// change the state of the window (this is a private function and
// it ignores the transient-for or desktop information):
void Frame::state(short newstate) {
short oldstate = state();
if (newstate == oldstate) return;
state_ = newstate;
switch (newstate) {
case UNMAPPED:
throw_focus();
XUnmapWindow(fl_display, fl_xid(this));
//set_state_flag(IGNORE_UNMAP);
//XUnmapWindow(fl_display, window_);
XRemoveFromSaveSet(fl_display, window_);
break;
case NORMAL:
if (oldstate == UNMAPPED) XAddToSaveSet(fl_display, window_);
if (w() > dwidth) XMapWindow(fl_display, window_);
XMapWindow(fl_display, fl_xid(this));
clear_state_flag(IGNORE_UNMAP);
break;
default:
if (oldstate == UNMAPPED) {
XAddToSaveSet(fl_display, window_);
} else if (oldstate == NORMAL) {
throw_focus();
XUnmapWindow(fl_display, fl_xid(this));
//set_state_flag(IGNORE_UNMAP);
//XUnmapWindow(fl_display, window_);
} else {
return; // don't setStateProperty IconicState multiple times
}
break;
}
setStateProperty();
}
void Frame::setStateProperty() const {
long data[2];
switch (state()) {
case UNMAPPED :
data[0] = WithdrawnState; break;
case NORMAL :
case OTHER_DESKTOP :
data[0] = NormalState; break;
default :
data[0] = IconicState; break;
}
data[1] = (long)None;
XChangeProperty(fl_display, window_, wm_state, wm_state,
32, PropModeReplace, (unsigned char *)data, 2);
}
////////////////////////////////////////////////////////////////
// Public state modifiers that move all transient_for(this) children
// with the frame and do the desktops right:
void Frame::raise() {
Frame* newtop = 0;
Frame* previous = 0;
int previous_state = state_;
Frame** p;
// Find all the transient-for windows and this one, and raise them,
// preserving stacking order:
for (p = &first; *p;) {
Frame* f = *p;
if ((f == this) || (f->is_transient_for(this) && (f->state() != UNMAPPED))) {
*p = f->next; // remove it from list
if (previous) {
XWindowChanges w;
w.sibling = fl_xid(previous);
w.stack_mode = Below;
XConfigureWindow(fl_display, fl_xid(f), CWSibling|CWStackMode, &w);
previous->next = f;
} else {
XRaiseWindow(fl_display, fl_xid(f));
newtop = f;
}
#if DESKTOPS
if (f->desktop_ && f->desktop_ != Desktop::current())
f->state(OTHER_DESKTOP);
else
#endif
f->state(NORMAL);
previous = f;
} else {
p = &((*p)->next);
}
}
previous->next = first;
first = newtop;
#if DESKTOPS
if (!transient_for() && desktop_ && desktop_ != Desktop::current()) {
// for main windows we also must move to the current desktop