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This commit is contained in:
rhp
2001-06-02 04:14:18 +00:00
parent 31d6e2dca0
commit e47c4d16a2
29 changed files with 1314 additions and 59 deletions
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34
src/Makefile.am Normal file
View File

@ -0,0 +1,34 @@
SUBDIRS=uislave
INCLUDES=@METACITY_CFLAGS@
metacity_SOURCES= \
api.c \
api.h \
colors.c \
colors.h \
display.c \
display.h \
errors.c \
errors.h \
eventqueue.c \
eventqueue.h \
frame.c \
frame.h \
main.c \
main.h \
screen.c \
screen.h \
theme.c \
theme.h \
uislave.c \
uislave.h \
util.c \
util.h \
window.c \
window.h
bin_PROGRAMS=metacity
metacity_LDADD= @METACITY_LIBS@

2
src/api.h
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@ -25,7 +25,7 @@
/* don't add any internal headers here; api.h is an installed/public
* header. Only theme.h is also installed.
*/
#include <Xlib.h>
#include <X11/Xlib.h>
#include <pango/pangox.h>
PangoContext* meta_get_pango_context (Screen *xscreen,

8
src/display.c
View File

@ -63,7 +63,9 @@ meta_display_open (const char *name)
GSList *screens;
GSList *tmp;
int i;
char *atom_names[] = { "_NET_WM_NAME" };
Atom atoms[G_N_ELEMENTS(atom_names)];
meta_verbose ("Opening display '%s'\n", XDisplayName (name));
xdisplay = XOpenDisplay (name);
@ -122,6 +124,10 @@ meta_display_open (const char *name)
display->server_grab_count = 0;
XInternAtoms (display->xdisplay, atom_names, G_N_ELEMENTS (atom_names),
False, atoms);
display->atom_net_wm_name = atoms[0];
/* Now manage all existing windows */
tmp = display->screens;
while (tmp != NULL)

4
src/display.h
View File

@ -23,7 +23,7 @@
#define META_DISPLAY_H
#include <glib.h>
#include <Xlib.h>
#include <X11/Xlib.h>
#include <pango/pangox.h>
#include "eventqueue.h"
@ -37,6 +37,8 @@ struct _MetaDisplay
char *name;
Display *xdisplay;
Atom atom_net_wm_name;
/*< private-ish >*/
MetaEventQueue *events;
GSList *screens;

2
src/errors.c
View File

@ -73,7 +73,7 @@ meta_error_trap_pop (MetaDisplay *display)
display->error_traps = next;
g_free (et);
if (result != Success)
{
gchar buf[64];

2
src/eventqueue.c
View File

@ -20,7 +20,7 @@
* 02111-1307, USA. */
#include "eventqueue.h"
#include <Xlib.h>
#include <X11/Xlib.h>
static gboolean eq_prepare (GSource *source,
gint *timeout);

2
src/eventqueue.h
View File

@ -23,7 +23,7 @@
#define META_EVENT_QUEUE_H
#include <glib.h>
#include <Xlib.h>
#include <X11/Xlib.h>
typedef struct _MetaEventQueue MetaEventQueue;

144
src/frame.c
View File

@ -82,7 +82,7 @@ meta_window_ensure_frame (MetaWindow *window)
background_pixel = geom.background_pixel;
switch (window->win_gravity)
switch (window->size_hints.win_gravity)
{
case NorthWestGravity:
frame->rect.x = window->rect.x;
@ -127,18 +127,20 @@ meta_window_ensure_frame (MetaWindow *window)
break;
}
meta_verbose ("Creating frame %d,%d %dx%d around window 0x%lx %d,%d %dx%d with child position inside frame %d,%d\n",
meta_verbose ("Creating frame %d,%d %dx%d around window 0x%lx %d,%d %dx%d with child position inside frame %d,%d and gravity %d\n",
frame->rect.x, frame->rect.y,
frame->rect.width, frame->rect.height,
window->xwindow,
window->rect.x, window->rect.y,
window->rect.width, window->rect.height,
child_x, child_y);
child_x, child_y,
window->size_hints.win_gravity);
attrs.background_pixel = background_pixel;
attrs.event_mask =
StructureNotifyMask | ExposureMask |
ButtonPressMask | ButtonReleaseMask;
ButtonPressMask | ButtonReleaseMask |
PointerMotionMask | PointerMotionHintMask;
frame->xwindow = XCreateWindow (window->display->xdisplay,
window->screen->xroot,
@ -152,6 +154,13 @@ meta_window_ensure_frame (MetaWindow *window)
window->xvisual,
CWBackPixel | CWEventMask,
&attrs);
meta_verbose ("Frame is 0x%lx\n", frame->xwindow);
frame->action = META_FRAME_ACTION_NONE;
frame->last_x = 0;
frame->last_y = 0;
frame->start_button = 0;
meta_display_register_x_window (window->display, &frame->xwindow, window);
@ -172,12 +181,13 @@ meta_window_ensure_frame (MetaWindow *window)
child_y);
meta_error_trap_pop (window->display);
/* Show windows */
XMapWindow (window->display->xdisplay, frame->xwindow);
XMapWindow (window->display->xdisplay, window->xwindow);
/* stick frame to the window */
window->frame = frame;
window->frame = frame;
if (window->iconic)
meta_window_hide (window);
else
meta_window_show (window);
/* Ungrab server */
meta_display_ungrab (window->display);
@ -223,23 +233,60 @@ meta_window_destroy_frame (MetaWindow *window)
g_free (frame);
}
void
meta_frame_show (MetaFrame *frame)
meta_frame_move (MetaFrame *frame,
int root_x,
int root_y)
{
XMapWindow (frame->window->display->xdisplay, frame->xwindow);
frame->rect.x = root_x;
frame->rect.y = root_y;
XMoveWindow (frame->window->display->xdisplay,
frame->xwindow,
root_x, root_y);
}
void
meta_frame_hide (MetaFrame *frame)
static void
frame_query_root_pointer (MetaFrame *frame,
int *x, int *y)
{
XUnmapWindow (frame->window->display->xdisplay, frame->xwindow);
Window root_return, child_return;
int root_x_return, root_y_return;
int win_x_return, win_y_return;
unsigned int mask_return;
XQueryPointer (frame->window->display->xdisplay,
frame->xwindow,
&root_return,
&child_return,
&root_x_return,
&root_y_return,
&win_x_return,
&win_y_return,
&mask_return);
if (x)
*x = root_x_return;
if (y)
*y = root_y_return;
}
static MetaFrameControl
frame_get_control (MetaFrame *frame,
int x, int y)
{
MetaFrameInfo info;
meta_frame_init_info (frame, &info);
return frame->window->screen->engine->get_control (&info,
x, y,
frame->theme_data);
}
gboolean
meta_frame_event (MetaFrame *frame,
XEvent *event)
{
{
switch (event->type)
{
case KeyPress:
@ -247,10 +294,68 @@ meta_frame_event (MetaFrame *frame,
case KeyRelease:
break;
case ButtonPress:
if (frame->action == META_FRAME_ACTION_NONE)
{
MetaFrameControl control;
control = frame_get_control (frame,
event->xbutton.x,
event->xbutton.y);
if (((control == META_FRAME_CONTROL_TITLE ||
control == META_FRAME_CONTROL_NONE) &&
event->xbutton.button == 1) ||
event->xbutton.button == 2)
{
meta_verbose ("Begin move on %s\n",
frame->window->desc);
frame->action = META_FRAME_ACTION_MOVING;
frame->last_x = event->xbutton.x_root;
frame->last_y = event->xbutton.y_root;
frame->start_button = event->xbutton.button;
}
else if (control == META_FRAME_CONTROL_DELETE &&
event->xbutton.button == 1)
{
/* FIXME delete event */
meta_verbose ("Close control clicked on %s\n",
frame->window->desc);
}
else if (control == META_FRAME_CONTROL_RESIZE_SE &&
event->xbutton.button == 1)
{
/* FIXME begin a resize */
meta_verbose ("Resize control clicked on %s\n",
frame->window->desc);
}
}
break;
case ButtonRelease:
if (event->xbutton.button == frame->start_button)
{
frame->action = META_FRAME_ACTION_NONE;
}
break;
case MotionNotify:
switch (frame->action)
{
case META_FRAME_ACTION_MOVING:
{
int x, y;
int new_x, new_y;
frame_query_root_pointer (frame, &x, &y);
new_x = frame->rect.x + (x - frame->last_x);
new_y = frame->rect.y + (y - frame->last_y);
frame->last_x = x;
frame->last_y = y;
meta_frame_move (frame, new_x, new_y);
}
break;
default:
break;
}
break;
case EnterNotify:
break;
@ -290,19 +395,16 @@ meta_frame_event (MetaFrame *frame,
return TRUE;
break;
case UnmapNotify:
frame->action = META_FRAME_ACTION_NONE;
break;
case MapNotify:
frame->action = META_FRAME_ACTION_NONE;
break;
case MapRequest:
break;
case ReparentNotify:
break;
case ConfigureNotify:
frame->rect.x = event->xconfigure.x;
frame->rect.y = event->xconfigure.y;
frame->rect.width = event->xconfigure.width;
frame->rect.height = event->xconfigure.height;
return TRUE;
break;
case ConfigureRequest:
break;

21
src/frame.h
View File

@ -24,6 +24,13 @@
#include "window.h"
typedef enum
{
META_FRAME_ACTION_NONE,
META_FRAME_ACTION_MOVING,
META_FRAME_ACTION_RESIZING
} MetaFrameAction;
struct _MetaFrame
{
/* window we frame */
@ -32,19 +39,27 @@ struct _MetaFrame
/* reparent window */
Window xwindow;
/* This is trusted info from where we put the
* frame, not the result of ConfigureNotify
*/
MetaRectangle rect;
gpointer theme_data;
MetaFrameAction action;
/* reference point for drags */
int last_x, last_y;
int start_button;
};
void meta_window_ensure_frame (MetaWindow *window);
void meta_window_destroy_frame (MetaWindow *window);
void meta_frame_show (MetaFrame *frame);
void meta_frame_hide (MetaFrame *frame);
void meta_frame_move (MetaFrame *frame,
int root_x,
int root_y);
gboolean meta_frame_event (MetaFrame *frame,
XEvent *event);
#endif

2
src/screen.c
View File

@ -25,7 +25,7 @@
#include "window.h"
#include "colors.h"
#include <cursorfont.h>
#include <X11/cursorfont.h>
#include <locale.h>
#include <string.h>

58
src/theme.c
View File

@ -28,6 +28,8 @@ struct _DefaultFrameData
{
PangoLayout *layout;
GC text_gc;
GC fg_gc;
int title_height;
};
static gpointer
@ -47,10 +49,19 @@ default_acquire_frame (MetaFrameInfo *info)
color.red = color.green = color.blue = 0xffff;
vals.foreground = meta_get_x_pixel (info->screen, &color);
/* FIXME memory-inefficient, could use the same one for all frames
* w/ the same root window
*/
d->text_gc = XCreateGC (info->display,
RootWindowOfScreen (info->screen),
GCForeground,
&vals);
d->fg_gc = XCreateGC (info->display,
RootWindowOfScreen (info->screen),
GCForeground,
&vals);
d->title_height = 0;
return d;
}
@ -67,14 +78,15 @@ default_release_frame (MetaFrameInfo *info,
g_object_unref (G_OBJECT (d->layout));
XFreeGC (info->display, d->text_gc);
XFreeGC (info->display, d->fg_gc);
g_free (d);
}
#define VERTICAL_TEXT_PAD 3
#define LEFT_WIDTH 2
#define RIGHT_WIDTH 2
#define BOTTOM_HEIGHT 2
#define LEFT_WIDTH 15
#define RIGHT_WIDTH 15
#define BOTTOM_HEIGHT 20
void
default_fill_frame_geometry (MetaFrameInfo *info,
MetaFrameGeometry *geom,
@ -93,7 +105,8 @@ default_fill_frame_geometry (MetaFrameInfo *info,
pango_layout_get_pixel_extents (d->layout, NULL, &rect);
geom->top_height = rect.height + VERTICAL_TEXT_PAD * 2;
d->title_height = rect.height + VERTICAL_TEXT_PAD * 2;
geom->top_height = d->title_height;
geom->left_width = LEFT_WIDTH;
geom->right_width = RIGHT_WIDTH;
@ -111,6 +124,7 @@ default_expose_frame (MetaFrameInfo *info,
gpointer frame_data)
{
DefaultFrameData *d;
int close_size;
d = frame_data;
@ -120,15 +134,49 @@ default_expose_frame (MetaFrameInfo *info,
d->layout,
LEFT_WIDTH,
VERTICAL_TEXT_PAD);
close_size = d->title_height;
XDrawLine (info->display,
info->frame,
d->fg_gc,
info->width - RIGHT_WIDTH - close_size,
VERTICAL_TEXT_PAD,
info->width - RIGHT_WIDTH,
d->title_height - VERTICAL_TEXT_PAD);
XDrawLine (info->display,
info->frame,
d->fg_gc,
info->width - RIGHT_WIDTH,
VERTICAL_TEXT_PAD,
info->width - RIGHT_WIDTH - close_size,
d->title_height - VERTICAL_TEXT_PAD);
}
#define RESIZE_EXTENDS 10
MetaFrameControl
default_get_control (MetaFrameInfo *info,
int x, int y,
gpointer frame_data)
{
DefaultFrameData *d;
int close_size;
d = frame_data;
close_size = d->title_height;
if (y < d->title_height &&
x > info->width - RIGHT_WIDTH - close_size)
return META_FRAME_CONTROL_DELETE;
if (y < d->title_height)
return META_FRAME_CONTROL_TITLE;
if (y > (info->height - BOTTOM_HEIGHT - RESIZE_EXTENDS) &&
x > (info->width - RIGHT_WIDTH - RESIZE_EXTENDS))
return META_FRAME_CONTROL_RESIZE_SE;
return META_FRAME_CONTROL_NONE;
}

2
src/theme.h
View File

@ -25,7 +25,7 @@
/* don't add any internal headers here; theme.h is an installed/public
* header.
*/
#include <Xlib.h>
#include <X11/Xlib.h>
#include <glib.h>
typedef struct _MetaFrameInfo MetaFrameInfo;

29
src/uislave.c Normal file
View File

@ -0,0 +1,29 @@
/* Metacity UI Slave */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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 "uislave.h"
MetaUISlave*
meta_ui_slave_new (const char *display_name)
{
}

39
src/uislave.h Normal file
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@ -0,0 +1,39 @@
/* Metacity UI Slave */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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.
*/
#ifndef META_UI_SLAVE_H
#define META_UI_SLAVE_H
#include "util.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
typedef struct _MetaUISlave MetaUISlave;
struct _MetaUISlave
{
char *display_name;
};
MetaUISlave* meta_ui_slave_new (const char *display_name);
#endif

9
src/uislave/Makefile.am Normal file
View File

@ -0,0 +1,9 @@
INCLUDES=@UISLAVE_CFLAGS@
metacity_uislave_SOURCES = \
main.c
libexec_PROGRAMS=metacity-uislave
metacity_uislave_LDADD = @UISLAVE_LIBS@

27
src/uislave/main.c Normal file
View File

@ -0,0 +1,27 @@
/* Metacity UI slave main() */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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.
*/
int
main (int argc, char **argv)
{
return 0;
}

405
src/window.c
View File

@ -23,6 +23,23 @@
#include "util.h"
#include "frame.h"
#include "errors.h"
#include <X11/Xatom.h>
static void constrain_size (MetaWindow *window,
int width,
int height,
int *new_width,
int *new_height);
static int update_size_hints (MetaWindow *window);
static int update_title (MetaWindow *window);
static int update_protocols (MetaWindow *window);
static gboolean process_configure_request (MetaWindow *window,
XConfigureRequestEvent *event);
static gboolean process_property_notify (MetaWindow *window,
XPropertyEvent *event);
MetaWindow*
meta_window_new (MetaDisplay *display, Window xwindow)
@ -30,12 +47,12 @@ meta_window_new (MetaDisplay *display, Window xwindow)
MetaWindow *window;
XWindowAttributes attrs;
GSList *tmp;
meta_verbose ("Attempting to manage 0x%lx\n", xwindow);
/* round trip */
meta_error_trap_push (display);
if (XGetWindowAttributes (display->xdisplay,
xwindow, &attrs) == Success &&
attrs.override_redirect)
@ -88,15 +105,20 @@ meta_window_new (MetaDisplay *display, Window xwindow)
window->rect.y = attrs.y;
window->rect.width = attrs.width;
window->rect.height = attrs.height;
window->border_width = attrs.border_width;
window->win_gravity = attrs.win_gravity;
window->depth = attrs.depth;
window->xvisual = attrs.visual;
window->title = g_strdup ("Foo foo foo foo");
window->title = NULL;
window->iconic = FALSE;
window->desc = g_strdup_printf ("0x%lx", window->xwindow);
meta_display_register_x_window (display, &window->xwindow, window);
update_size_hints (window);
update_title (window);
update_protocols (window);
window->frame = NULL;
meta_window_ensure_frame (window);
@ -117,6 +139,26 @@ meta_window_free (MetaWindow *window)
g_free (window);
}
void
meta_window_show (MetaWindow *window)
{
if (window->frame)
XMapWindow (window->display->xdisplay, window->frame->xwindow);
XMapWindow (window->display->xdisplay, window->xwindow);
window->iconic = FALSE;
}
void
meta_window_hide (MetaWindow *window)
{
if (window->frame)
XUnmapWindow (window->display->xdisplay, window->frame->xwindow);
XUnmapWindow (window->display->xdisplay, window->xwindow);
window->iconic = TRUE;
}
gboolean
meta_window_event (MetaWindow *window,
XEvent *event)
@ -165,12 +207,11 @@ meta_window_event (MetaWindow *window,
return TRUE;
break;
case UnmapNotify:
if (window->frame)
meta_frame_hide (window->frame);
/* Window withdrawn */
meta_window_free (window);
return TRUE;
break;
case MapNotify:
if (window->frame)
meta_frame_show (window->frame);
break;
case MapRequest:
break;
@ -179,21 +220,15 @@ meta_window_event (MetaWindow *window,
case ConfigureNotify:
if (event->xconfigure.override_redirect)
{
/* Unmanage it */
/* Unmanage it, override_redirect was toggled on?
* Can this happen?
*/
meta_window_free (window);
return TRUE;
}
else
{
window->rect.x = event->xconfigure.x;
window->rect.y = event->xconfigure.y;
window->rect.width = event->xconfigure.width;
window->rect.height = event->xconfigure.height;
window->border_width = event->xconfigure.border_width;
return TRUE;
}
break;
case ConfigureRequest:
return process_configure_request (window, &event->xconfigurerequest);
break;
case GravityNotify:
break;
@ -204,6 +239,7 @@ meta_window_event (MetaWindow *window,
case CirculateRequest:
break;
case PropertyNotify:
return process_property_notify (window, &event->xproperty);
break;
case SelectionClear:
break;
@ -224,3 +260,334 @@ meta_window_event (MetaWindow *window,
/* Didn't use this event */
return FALSE;
}
static gboolean
process_property_notify (MetaWindow *window,
XPropertyEvent *event)
{
if (event->atom == XA_WM_NAME ||
event->atom == window->display->atom_net_wm_name)
{
update_title (window);
}
else if (event->atom == XA_WM_NORMAL_HINTS)
{
update_size_hints (window);
}
else if (event->atom == XA_WM_PROTOCOLS)
{
update_protocols (window);
}
return TRUE;
}
static gboolean
process_configure_request (MetaWindow *window,
XConfigureRequestEvent *event)
{
/* ICCCM 4.1.5 */
/* Note that x, y is the corner of the window border,
* and width, height is the size of the window inside
* its border, but that we always deny border requests
* because we don't believe in clients who use lame-ass
* X features like that.
*/
window->border_width = event->border_width;
window->size_hints.x = event->x;
window->size_hints.y = event->y;
window->size_hints.width = event->width;
window->size_hints.height = event->height;
/* FIXME */
return TRUE;
}
static int
update_size_hints (MetaWindow *window)
{
int x, y, w, h;
/* Save the last ConfigureRequest, which we put here.
* Values here set in the hints are supposed to
* be ignored.
*/
x = window->size_hints.x;
y = window->size_hints.y;
w = window->size_hints.width;
h = window->size_hints.height;
window->size_hints.flags = 0;
meta_error_trap_push (window->display);
XGetNormalHints (window->display->xdisplay,
window->xwindow,
&window->size_hints);
/* Put it back. */
window->size_hints.x = x;
window->size_hints.y = y;
window->size_hints.width = w;
window->size_hints.height = h;
if (window->size_hints.flags & PBaseSize)
;
else if (window->size_hints.flags & PMinSize)
{
window->size_hints.base_width = window->size_hints.min_width;
window->size_hints.base_height = window->size_hints.min_height;
}
else
{
window->size_hints.base_width = 0;
window->size_hints.base_height = 0;
}
window->size_hints.flags |= PBaseSize;
if (window->size_hints.flags & PMinSize)
;
else if (window->size_hints.flags & PBaseSize)
{
window->size_hints.min_width = window->size_hints.base_width;
window->size_hints.min_height = window->size_hints.base_height;
}
else
{
window->size_hints.min_width = 0;
window->size_hints.min_height = 0;
}
window->size_hints.flags |= PMinSize;
if (window->size_hints.flags & PMaxSize)
;
else
{
window->size_hints.max_width = G_MAXINT;
window->size_hints.max_height = G_MAXINT;
window->size_hints.flags |= PMaxSize;
}
if (window->size_hints.flags & PResizeInc)
;
else
{
window->size_hints.width_inc = 1;
window->size_hints.height_inc = 1;
window->size_hints.flags |= PResizeInc;
}
if (window->size_hints.flags & PAspect)
{
/* don't divide by 0 */
if (window->size_hints.min_aspect.y < 1)
window->size_hints.min_aspect.y = 1;
if (window->size_hints.max_aspect.y < 1)
window->size_hints.max_aspect.y = 1;
}
else
{
window->size_hints.min_aspect.x = 1;
window->size_hints.min_aspect.y = G_MAXINT;
window->size_hints.max_aspect.x = G_MAXINT;
window->size_hints.max_aspect.y = 1;
window->size_hints.flags |= PAspect;
}
if (window->size_hints.flags & PWinGravity)
;
else
{
window->size_hints.win_gravity = NorthWestGravity;
window->size_hints.flags |= PWinGravity;
}
/* FIXME constrain the window to these hints */
return meta_error_trap_pop (window->display);
}
static int
update_title (MetaWindow *window)
{
XTextProperty text;
meta_error_trap_push (window->display);
if (window->title)
{
g_free (window->title);
window->title = NULL;
}
/* FIXME How does memory management for text.value work? */
XGetTextProperty (window->display->xdisplay,
window->xwindow,
&text,
window->display->atom_net_wm_name);
if (text.nitems > 0 &&
text.format == 8 &&
g_utf8_validate (text.value, text.nitems, NULL))
{
meta_verbose ("Using _NET_WM_NAME for new title of %s: '%s'\n",
window->desc, text.value);
window->title = g_strdup (text.value);
}
if (window->title == NULL &&
text.nitems > 0)
meta_warning ("_NET_WM_NAME property for %s contained invalid UTF-8\n",
window->desc);
if (window->title == NULL)
{
XGetTextProperty (window->display->xdisplay,
window->xwindow,
&text,
XA_WM_NAME);
if (text.nitems > 0)
{
/* FIXME This isn't particularly correct. Need to copy the
* GDK code...
*/
char *str;
GError *err;
err = NULL;
str = g_locale_to_utf8 (text.value,
(text.format / 8) * text.nitems,
NULL, NULL,
&err);
if (err != NULL)
{
meta_warning ("WM_NAME property for %s contained stuff we are too dumb to figure out: %s\n", window->desc, err->message);
g_error_free (err);
}
if (window->title)
meta_verbose ("Using WM_NAME for new title of %s: '%s'\n",
window->desc, text.value);
window->title = str;
}
}
if (window->title == NULL)
window->title = g_strdup ("");
window->desc = g_strdup_printf ("0x%lx (%.10s)", window->xwindow, window->title);
return meta_error_trap_pop (window->display);
}
static int
update_protocols (MetaWindow *window)
{
Atom *protocols;
int n_protocols;
int i;
meta_error_trap_push (window->display);
XGetWMProtocols (window->display->xdisplay,
window->xwindow,
&protocols,
&n_protocols);
window->take_focus = FALSE;
window->delete_window = FALSE;
i = 0;
while (i < n_protocols)
{
if (protocols[i] == _XA_WM_TAKE_FOCUS)
window->takes_focus = TRUE;
else if (protocols[i] == _XA_WM_DELETE_WINDOW)
window->delete_window = TRUE;
++i;
}
if (protocols)
XFree (protocols);
return meta_error_trap_pop (window->display);
}
static void
constrain_size (MetaWindow *window,
int width, int height,
int *new_width, int *new_height)
{
/* This is partially borrowed from GTK (LGPL), which in turn
* partially borrowed from fvwm,
*
* Copyright 1993, Robert Nation
* You may use this code for any purpose, as long as the original
* copyright remains in the source code and all documentation
*
* which in turn borrows parts of the algorithm from uwm
*/
int delta;
double min_aspect, max_aspect;
#define FLOOR(value, base) ( ((gint) ((value) / (base))) * (base) )
/* clamp width and height to min and max values
*/
width = CLAMP (width,
window->size_hints.min_width,
window->size_hints.max_width);
height = CLAMP (height,
window->size_hints.min_height,
window->size_hints.max_height);
/* shrink to base + N * inc
*/
width = window->size_hints.base_width +
FLOOR (width - window->size_hints.base_width, window->size_hints.width_inc);
height = window->size_hints.base_height +
FLOOR (height - window->size_hints.base_height, window->size_hints.height_inc);
/* constrain aspect ratio, according to:
*
* width
* min_aspect <= -------- <= max_aspect
* height
*/
min_aspect = window->size_hints.min_aspect.x / (double) window->size_hints.min_aspect.y;
max_aspect = window->size_hints.max_aspect.x / (double) window->size_hints.max_aspect.y;
if (min_aspect * height > width)
{
delta = FLOOR (height - width * min_aspect, window->size_hints.height_inc);
if (height - delta >= window->size_hints.min_height)
height -= delta;
else
{
delta = FLOOR (height * min_aspect - width, window->size_hints.width_inc);
if (width + delta <= window->size_hints.max_width)
width += delta;
}
}
if (max_aspect * height < width)
{
delta = FLOOR (width - height * max_aspect, window->size_hints.width_inc);
if (width - delta >= window->size_hints.min_width)
width -= delta;
else
{
delta = FLOOR (width / max_aspect - height, window->size_hints.height_inc);
if (height + delta <= window->size_hints.max_height)
height += delta;
}
}
#undef FLOOR
*new_width = width;
*new_height = height;
}

21
src/window.h
View File

@ -24,6 +24,7 @@
#include "screen.h"
#include "util.h"
#include <X11/Xutil.h>
struct _MetaWindow
{
@ -32,19 +33,33 @@ struct _MetaWindow
Window xwindow;
/* may be NULL! not all windows get decorated */
MetaFrame *frame;
MetaRectangle rect;
int border_width;
int win_gravity;
int depth;
Visual *xvisual;
char *desc; /* used in debug spew */
char *title;
guint iconic : 1;
guint take_focus : 1;
guint delete_window : 1;
/* The size we set the window to last. */
MetaRectangle rect;
/* Requested geometry */
int border_width;
/* x/y/w/h here get filled with ConfigureRequest values */
XSizeHints size_hints;
};
MetaWindow* meta_window_new (MetaDisplay *display,
Window xwindow);
void meta_window_free (MetaWindow *window);
void meta_window_show (MetaWindow *window);
void meta_window_hide (MetaWindow *window);
gboolean meta_window_event (MetaWindow *window,
XEvent *event);
#endif