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mutter/src/ui/frames.c
Simon McVittie c2a9ccb7e2 Let the UI layer (via the core) construct the frame mask 
This essentially just moves install_corners() from the compositor, through
the core, into the UI layer where it arguably should have been anyway,
leaving behind stub functions which call through the various layers. This
removes the compositor's special knowledge of how rounded corners work,
replacing it with "ask the UI for an alpha mask".

The computation of border widths and heights changes a bit, because the
width and height used in install_corners() are the
meta_window_get_outer_rect() (which includes the visible borders but not
the invisible ones), whereas the more readily-available rectangle is the
MetaFrame.rect (which includes both). Computing the same width and height
as meta_window_get_outer_rect() involves compensating for the invisible
borders, but the UI layer is the authority on those anyway, so it seems
clearer to have it do the calculations from scratch.

Bug: https://bugzilla.gnome.org/show_bug.cgi?id=697758
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
2013-04-17 13:35:06 +01:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity window frame manager widget */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2003 Red Hat, Inc.
* Copyright (C) 2005, 2006 Elijah Newren
*
* 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 <config.h>
#include <math.h>
#include <string.h>
#include <meta/boxes.h>
#include "frames.h"
#include <meta/util.h>
#include "core.h"
#include "menu.h"
#include <meta/theme.h>
#include <meta/prefs.h>
#include "ui.h"
#include <cairo-xlib.h>
#ifdef HAVE_SHAPE
#include <X11/extensions/shape.h>
#endif
#define DEFAULT_INNER_BUTTON_BORDER 3
static void meta_frames_destroy (GtkWidget *object);
static void meta_frames_finalize (GObject *object);
static void meta_frames_style_updated (GtkWidget *widget);
static void meta_frames_map (GtkWidget *widget);
static void meta_frames_unmap (GtkWidget *widget);
static void meta_frames_update_prelit_control (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameControl control);
static gboolean meta_frames_button_press_event (GtkWidget *widget,
GdkEventButton *event);
static gboolean meta_frames_button_release_event (GtkWidget *widget,
GdkEventButton *event);
static gboolean meta_frames_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event);
static gboolean meta_frames_destroy_event (GtkWidget *widget,
GdkEventAny *event);
static gboolean meta_frames_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean meta_frames_enter_notify_event (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean meta_frames_leave_notify_event (GtkWidget *widget,
GdkEventCrossing *event);
static void meta_frames_attach_style (MetaFrames *frames,
MetaUIFrame *frame);
static void meta_frames_paint (MetaFrames *frames,
MetaUIFrame *frame,
cairo_t *cr);
static void meta_frames_set_window_background (MetaFrames *frames,
MetaUIFrame *frame);
static void meta_frames_calc_geometry (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameGeometry *fgeom);
static void meta_frames_ensure_layout (MetaFrames *frames,
MetaUIFrame *frame);
static MetaUIFrame* meta_frames_lookup_window (MetaFrames *frames,
Window xwindow);
static void meta_frames_font_changed (MetaFrames *frames);
static void meta_frames_button_layout_changed (MetaFrames *frames);
static GdkRectangle* control_rect (MetaFrameControl control,
MetaFrameGeometry *fgeom);
static MetaFrameControl get_control (MetaFrames *frames,
MetaUIFrame *frame,
int x,
int y);
static void invalidate_whole_window (MetaFrames *frames,
MetaUIFrame *frame);
G_DEFINE_TYPE (MetaFrames, meta_frames, GTK_TYPE_WINDOW);
static GObject *
meta_frames_constructor (GType gtype,
guint n_properties,
GObjectConstructParam *properties)
{
GObject *object;
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (meta_frames_parent_class);
object = gobject_class->constructor (gtype, n_properties, properties);
g_object_set (object,
"type", GTK_WINDOW_POPUP,
NULL);
return object;
}
static void
meta_frames_class_init (MetaFramesClass *class)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
gobject_class->constructor = meta_frames_constructor;
gobject_class->finalize = meta_frames_finalize;
widget_class->destroy = meta_frames_destroy;
widget_class->style_updated = meta_frames_style_updated;
widget_class->map = meta_frames_map;
widget_class->unmap = meta_frames_unmap;
widget_class->draw = meta_frames_draw;
widget_class->destroy_event = meta_frames_destroy_event;
widget_class->button_press_event = meta_frames_button_press_event;
widget_class->button_release_event = meta_frames_button_release_event;
widget_class->motion_notify_event = meta_frames_motion_notify_event;
widget_class->enter_notify_event = meta_frames_enter_notify_event;
widget_class->leave_notify_event = meta_frames_leave_notify_event;
}
static gint
unsigned_long_equal (gconstpointer v1,
gconstpointer v2)
{
return *((const gulong*) v1) == *((const gulong*) v2);
}
static guint
unsigned_long_hash (gconstpointer v)
{
gulong val = * (const gulong *) v;
/* I'm not sure this works so well. */
#if GLIB_SIZEOF_LONG > 4
return (guint) (val ^ (val >> 32));
#else
return val;
#endif
}
static void
prefs_changed_callback (MetaPreference pref,
void *data)
{
switch (pref)
{
case META_PREF_TITLEBAR_FONT:
meta_frames_font_changed (META_FRAMES (data));
break;
case META_PREF_BUTTON_LAYOUT:
meta_frames_button_layout_changed (META_FRAMES (data));
break;
default:
break;
}
}
static GtkStyleContext *
meta_frames_get_theme_variant (MetaFrames *frames,
const gchar *variant)
{
GtkStyleContext *style;
style = g_hash_table_lookup (frames->style_variants, variant);
if (style == NULL)
{
style = meta_theme_create_style_context (gtk_widget_get_screen (GTK_WIDGET (frames)), variant);
g_hash_table_insert (frames->style_variants, g_strdup (variant), style);
}
return style;
}
static void
update_style_contexts (MetaFrames *frames)
{
GtkStyleContext *style;
GList *variants, *variant;
GdkScreen *screen;
screen = gtk_widget_get_screen (GTK_WIDGET (frames));
if (frames->normal_style)
g_object_unref (frames->normal_style);
frames->normal_style = meta_theme_create_style_context (screen, NULL);
variants = g_hash_table_get_keys (frames->style_variants);
for (variant = variants; variant; variant = variants->next)
{
style = meta_theme_create_style_context (screen, (char *)variant->data);
g_hash_table_insert (frames->style_variants,
g_strdup (variant->data), style);
}
g_list_free (variants);
}
static void
meta_frames_init (MetaFrames *frames)
{
frames->text_heights = g_hash_table_new (NULL, NULL);
frames->frames = g_hash_table_new (unsigned_long_hash, unsigned_long_equal);
frames->style_variants = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, g_object_unref);
update_style_contexts (frames);
gtk_widget_set_double_buffered (GTK_WIDGET (frames), FALSE);
meta_prefs_add_listener (prefs_changed_callback, frames);
}
static void
listify_func (gpointer key, gpointer value, gpointer data)
{
GSList **listp;
listp = data;
*listp = g_slist_prepend (*listp, value);
}
static void
meta_frames_destroy (GtkWidget *object)
{
GSList *winlist;
GSList *tmp;
MetaFrames *frames;
frames = META_FRAMES (object);
winlist = NULL;
g_hash_table_foreach (frames->frames, listify_func, &winlist);
/* Unmanage all frames */
for (tmp = winlist; tmp != NULL; tmp = tmp->next)
{
MetaUIFrame *frame;
frame = tmp->data;
meta_frames_unmanage_window (frames, frame->xwindow);
}
g_slist_free (winlist);
if (frames->normal_style)
{
g_object_unref (frames->normal_style);
frames->normal_style = NULL;
}
if (frames->style_variants)
{
g_hash_table_destroy (frames->style_variants);
frames->style_variants = NULL;
}
GTK_WIDGET_CLASS (meta_frames_parent_class)->destroy (object);
}
static void
meta_frames_finalize (GObject *object)
{
MetaFrames *frames;
frames = META_FRAMES (object);
meta_prefs_remove_listener (prefs_changed_callback, frames);
g_hash_table_destroy (frames->text_heights);
g_assert (g_hash_table_size (frames->frames) == 0);
g_hash_table_destroy (frames->frames);
G_OBJECT_CLASS (meta_frames_parent_class)->finalize (object);
}
static void
queue_recalc_func (gpointer key, gpointer value, gpointer data)
{
MetaUIFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (data);
frame = value;
/* If a resize occurs it will cause a redraw, but the
* resize may not actually be needed so we always redraw
* in case of color change.
*/
meta_frames_set_window_background (frames, frame);
invalidate_whole_window (frames, frame);
meta_core_queue_frame_resize (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
frame->xwindow);
if (frame->layout)
{
/* save title to recreate layout */
g_free (frame->title);
frame->title = g_strdup (pango_layout_get_text (frame->layout));
g_object_unref (G_OBJECT (frame->layout));
frame->layout = NULL;
}
}
static void
meta_frames_font_changed (MetaFrames *frames)
{
if (g_hash_table_size (frames->text_heights) > 0)
{
g_hash_table_destroy (frames->text_heights);
frames->text_heights = g_hash_table_new (NULL, NULL);
}
/* Queue a draw/resize on all frames */
g_hash_table_foreach (frames->frames,
queue_recalc_func, frames);
}
static void
queue_draw_func (gpointer key, gpointer value, gpointer data)
{
MetaUIFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (data);
frame = value;
/* If a resize occurs it will cause a redraw, but the
* resize may not actually be needed so we always redraw
* in case of color change.
*/
meta_frames_set_window_background (frames, frame);
invalidate_whole_window (frames, frame);
}
static void
meta_frames_button_layout_changed (MetaFrames *frames)
{
g_hash_table_foreach (frames->frames,
queue_draw_func, frames);
}
static void
reattach_style_func (gpointer key, gpointer value, gpointer data)
{
MetaUIFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (data);
frame = value;
meta_frames_attach_style (frames, frame);
}
static void
meta_frames_style_updated (GtkWidget *widget)
{
MetaFrames *frames;
frames = META_FRAMES (widget);
meta_frames_font_changed (frames);
update_style_contexts (frames);
g_hash_table_foreach (frames->frames,
reattach_style_func, frames);
GTK_WIDGET_CLASS (meta_frames_parent_class)->style_updated (widget);
}
static void
meta_frames_ensure_layout (MetaFrames *frames,
MetaUIFrame *frame)
{
GtkWidget *widget;
MetaFrameFlags flags;
MetaFrameType type;
MetaFrameStyle *style;
widget = GTK_WIDGET (frames);
g_return_if_fail (gtk_widget_get_realized (widget));
meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_END);
style = meta_theme_get_frame_style (meta_theme_get_current (),
type, flags);
if (style != frame->cache_style)
{
if (frame->layout)
{
/* save title to recreate layout */
g_free (frame->title);
frame->title = g_strdup (pango_layout_get_text (frame->layout));
g_object_unref (G_OBJECT (frame->layout));
frame->layout = NULL;
}
}
frame->cache_style = style;
if (frame->layout == NULL)
{
gpointer key, value;
PangoFontDescription *font_desc;
double scale;
int size;
scale = meta_theme_get_title_scale (meta_theme_get_current (),
type,
flags);
frame->layout = gtk_widget_create_pango_layout (widget, frame->title);
pango_layout_set_ellipsize (frame->layout, PANGO_ELLIPSIZE_END);
pango_layout_set_auto_dir (frame->layout, FALSE);
pango_layout_set_single_paragraph_mode (frame->layout, TRUE);
font_desc = meta_gtk_widget_get_font_desc (widget, scale,
meta_prefs_get_titlebar_font ());
size = pango_font_description_get_size (font_desc);
if (g_hash_table_lookup_extended (frames->text_heights,
GINT_TO_POINTER (size),
&key, &value))
{
frame->text_height = GPOINTER_TO_INT (value);
}
else
{
frame->text_height =
meta_pango_font_desc_get_text_height (font_desc,
gtk_widget_get_pango_context (widget));
g_hash_table_replace (frames->text_heights,
GINT_TO_POINTER (size),
GINT_TO_POINTER (frame->text_height));
}
pango_layout_set_font_description (frame->layout,
font_desc);
pango_font_description_free (font_desc);
/* Save some RAM */
g_free (frame->title);
frame->title = NULL;
}
}
static void
meta_frames_calc_geometry (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameGeometry *fgeom)
{
int width, height;
MetaFrameFlags flags;
MetaFrameType type;
MetaButtonLayout button_layout;
meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow,
META_CORE_GET_CLIENT_WIDTH, &width,
META_CORE_GET_CLIENT_HEIGHT, &height,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_END);
meta_frames_ensure_layout (frames, frame);
meta_prefs_get_button_layout (&button_layout);
meta_theme_calc_geometry (meta_theme_get_current (),
type,
frame->text_height,
flags,
width, height,
&button_layout,
fgeom);
}
MetaFrames*
meta_frames_new (int screen_number)
{
GdkScreen *screen;
screen = gdk_display_get_screen (gdk_display_get_default (),
screen_number);
return g_object_new (META_TYPE_FRAMES,
"screen", screen,
NULL);
}
/* In order to use a style with a window it has to be attached to that
* window. Actually, the colormaps just have to match, but since GTK+
* already takes care of making sure that its cheap to attach a style
* to multiple windows with the same colormap, we can just go ahead
* and attach separately for each window.
*/
static void
meta_frames_attach_style (MetaFrames *frames,
MetaUIFrame *frame)
{
gboolean has_frame;
char *variant = NULL;
if (frame->style != NULL)
g_object_unref (frame->style);
meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
frame->xwindow,
META_CORE_WINDOW_HAS_FRAME, &has_frame,
META_CORE_GET_THEME_VARIANT, &variant,
META_CORE_GET_END);
if (variant == NULL || strcmp(variant, "normal") == 0)
frame->style = g_object_ref (frames->normal_style);
else
frame->style = g_object_ref (meta_frames_get_theme_variant (frames,
variant));
}
void
meta_frames_manage_window (MetaFrames *frames,
Window xwindow,
GdkWindow *window)
{
MetaUIFrame *frame;
g_assert (window);
frame = g_new (MetaUIFrame, 1);
frame->window = window;
gdk_window_set_user_data (frame->window, frames);
frame->style = NULL;
/* Don't set event mask here, it's in frame.c */
frame->xwindow = xwindow;
frame->cache_style = NULL;
frame->layout = NULL;
frame->text_height = -1;
frame->title = NULL;
frame->shape_applied = FALSE;
frame->prelit_control = META_FRAME_CONTROL_NONE;
/* Don't set the window background yet; we need frame->xwindow to be
* registered with its MetaWindow, which happens after this function
* and meta_ui_create_frame_window() return to meta_window_ensure_frame().
*/
meta_core_grab_buttons (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow);
g_hash_table_replace (frames->frames, &frame->xwindow, frame);
}
void
meta_frames_unmanage_window (MetaFrames *frames,
Window xwindow)
{
MetaUIFrame *frame;
frame = g_hash_table_lookup (frames->frames, &xwindow);
if (frame)
{
/* restore the cursor */
meta_core_set_screen_cursor (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
frame->xwindow,
META_CURSOR_DEFAULT);
gdk_window_set_user_data (frame->window, NULL);
if (frames->last_motion_frame == frame)
frames->last_motion_frame = NULL;
g_hash_table_remove (frames->frames, &frame->xwindow);
g_object_unref (frame->style);
gdk_window_destroy (frame->window);
if (frame->layout)
g_object_unref (G_OBJECT (frame->layout));
if (frame->title)
g_free (frame->title);
g_free (frame);
}
else
meta_warning ("Frame 0x%lx not managed, can't unmanage\n", xwindow);
}
static void
meta_frames_map (GtkWidget *widget)
{
/* We override the parent map function to a no-op because we don't
* want to actually show the GDK window. But GTK needs to think that
* the widget is mapped or it won't deliver the events we care about.
*/
gtk_widget_set_mapped (widget, TRUE);
}
static void
meta_frames_unmap (GtkWidget *widget)
{
gtk_widget_set_mapped (widget, FALSE);
}
static MetaUIFrame*
meta_frames_lookup_window (MetaFrames *frames,
Window xwindow)
{
MetaUIFrame *frame;
frame = g_hash_table_lookup (frames->frames, &xwindow);
return frame;
}
static void
meta_ui_frame_get_borders (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameBorders *borders)
{
MetaFrameFlags flags;
MetaFrameType type;
meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_END);
g_return_if_fail (type < META_FRAME_TYPE_LAST);
meta_frames_ensure_layout (frames, frame);
/* We can't get the full geometry, because that depends on
* the client window size and probably we're being called
* by the core move/resize code to decide on the client
* window size
*/
meta_theme_get_frame_borders (meta_theme_get_current (),
type,
frame->text_height,
flags,
borders);
}
void
meta_frames_get_borders (MetaFrames *frames,
Window xwindow,
MetaFrameBorders *borders)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
if (frame == NULL)
meta_bug ("No such frame 0x%lx\n", xwindow);
meta_ui_frame_get_borders (frames, frame, borders);
}
static void
meta_ui_frame_get_corner_radiuses (MetaFrames *frames,
MetaUIFrame *frame,
float *top_left,
float *top_right,
float *bottom_left,
float *bottom_right)
{
MetaFrameGeometry fgeom;
meta_frames_calc_geometry (frames, frame, &fgeom);
/* For compatibility with the code in get_visible_rect(), there's
* a mysterious sqrt() added to the corner radiuses:
*
* const float radius = sqrt(corner) + corner;
*
* It's unclear why the radius is calculated like this, but we
* need to be consistent with it.
*/
if (top_left)
*top_left = fgeom.top_left_corner_rounded_radius + sqrt(fgeom.top_left_corner_rounded_radius);
if (top_right)
*top_right = fgeom.top_right_corner_rounded_radius + sqrt(fgeom.top_right_corner_rounded_radius);
if (bottom_left)
*bottom_left = fgeom.bottom_left_corner_rounded_radius + sqrt(fgeom.bottom_left_corner_rounded_radius);
if (bottom_right)
*bottom_right = fgeom.bottom_right_corner_rounded_radius + sqrt(fgeom.bottom_right_corner_rounded_radius);
}
void
meta_frames_reset_bg (MetaFrames *frames,
Window xwindow)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
meta_frames_set_window_background (frames, frame);
}
static void
set_background_none (Display *xdisplay,
Window xwindow)
{
XSetWindowAttributes attrs;
attrs.background_pixmap = None;
XChangeWindowAttributes (xdisplay, xwindow,
CWBackPixmap, &attrs);
}
void
meta_frames_unflicker_bg (MetaFrames *frames,
Window xwindow,
int target_width,
int target_height)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
g_return_if_fail (frame != NULL);
set_background_none (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow);
}
/* The client rectangle surrounds client window; it subtracts both
* the visible and invisible borders from the frame window's size.
*/
static void
get_client_rect (MetaFrameGeometry *fgeom,
int window_width,
int window_height,
cairo_rectangle_int_t *rect)
{
rect->x = fgeom->borders.total.left;
rect->y = fgeom->borders.total.top;
rect->width = window_width - fgeom->borders.total.right - rect->x;
rect->height = window_height - fgeom->borders.total.bottom - rect->y;
}
/* The visible frame rectangle surrounds the visible portion of the
* frame window; it subtracts only the invisible borders from the frame
* window's size.
*/
static void
get_visible_frame_rect (MetaFrameGeometry *fgeom,
int window_width,
int window_height,
cairo_rectangle_int_t *rect)
{
rect->x = fgeom->borders.invisible.left;
rect->y = fgeom->borders.invisible.top;
rect->width = window_width - fgeom->borders.invisible.right - rect->x;
rect->height = window_height - fgeom->borders.invisible.bottom - rect->y;
}
static cairo_region_t *
get_visible_region (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameGeometry *fgeom,
int window_width,
int window_height)
{
cairo_region_t *corners_region;
cairo_region_t *visible_region;
cairo_rectangle_int_t rect;
cairo_rectangle_int_t frame_rect;
corners_region = cairo_region_create ();
get_visible_frame_rect (fgeom, window_width, window_height, &frame_rect);
if (fgeom->top_left_corner_rounded_radius != 0)
{
const int corner = fgeom->top_left_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x;
rect.y = frame_rect.y + i;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
if (fgeom->top_right_corner_rounded_radius != 0)
{
const int corner = fgeom->top_right_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x + frame_rect.width - width;
rect.y = frame_rect.y + i;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
if (fgeom->bottom_left_corner_rounded_radius != 0)
{
const int corner = fgeom->bottom_left_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x;
rect.y = frame_rect.y + frame_rect.height - i - 1;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
if (fgeom->bottom_right_corner_rounded_radius != 0)
{
const int corner = fgeom->bottom_right_corner_rounded_radius;
const float radius = sqrt(corner) + corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x + frame_rect.width - width;
rect.y = frame_rect.y + frame_rect.height - i - 1;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
visible_region = cairo_region_create_rectangle (&frame_rect);
cairo_region_subtract (visible_region, corners_region);
cairo_region_destroy (corners_region);
return visible_region;
}
cairo_region_t *
meta_frames_get_frame_bounds (MetaFrames *frames,
Window xwindow,
int window_width,
int window_height)
{
MetaUIFrame *frame;
MetaFrameGeometry fgeom;
frame = meta_frames_lookup_window (frames, xwindow);
g_return_val_if_fail (frame != NULL, NULL);
meta_frames_calc_geometry (frames, frame, &fgeom);
return get_visible_region (frames, frame,
&fgeom,
window_width, window_height);
}
void
meta_frames_move_resize_frame (MetaFrames *frames,
Window xwindow,
int x,
int y,
int width,
int height)
{
MetaUIFrame *frame = meta_frames_lookup_window (frames, xwindow);
int old_width, old_height;
old_width = gdk_window_get_width (frame->window);
old_height = gdk_window_get_height (frame->window);
gdk_window_move_resize (frame->window, x, y, width, height);
if (old_width != width || old_height != height)
invalidate_whole_window (frames, frame);
}
void
meta_frames_queue_draw (MetaFrames *frames,
Window xwindow)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
invalidate_whole_window (frames, frame);
}
void
meta_frames_set_title (MetaFrames *frames,
Window xwindow,
const char *title)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
g_assert (frame);
g_free (frame->title);
frame->title = g_strdup (title);
if (frame->layout)
{
g_object_unref (frame->layout);
frame->layout = NULL;
}
invalidate_whole_window (frames, frame);
}
void
meta_frames_update_frame_style (MetaFrames *frames,
Window xwindow)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
g_assert (frame);
meta_frames_attach_style (frames, frame);
invalidate_whole_window (frames, frame);
}
void
meta_frames_repaint_frame (MetaFrames *frames,
Window xwindow)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, xwindow);
g_assert (frame);
/* repaint everything, so the other frame don't
* lag behind if they are exposed
*/
gdk_window_process_all_updates ();
}
static void
redraw_control (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameControl control)
{
MetaFrameGeometry fgeom;
GdkRectangle *rect;
meta_frames_calc_geometry (frames, frame, &fgeom);
rect = control_rect (control, &fgeom);
gdk_window_invalidate_rect (frame->window, rect, FALSE);
}
static gboolean
meta_frame_titlebar_event (MetaUIFrame *frame,
GdkEventButton *event,
int action)
{
MetaFrameFlags flags;
Display *display;
display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
switch (action)
{
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_SHADE:
{
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_END);
if (flags & META_FRAME_ALLOWS_SHADE)
{
if (flags & META_FRAME_SHADED)
meta_core_unshade (display,
frame->xwindow,
event->time);
else
meta_core_shade (display,
frame->xwindow,
event->time);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_MAXIMIZE:
{
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_END);
if (flags & META_FRAME_ALLOWS_MAXIMIZE)
{
meta_core_toggle_maximize (display, frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_MAXIMIZE_HORIZONTALLY:
{
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_END);
if (flags & META_FRAME_ALLOWS_MAXIMIZE)
{
meta_core_toggle_maximize_horizontally (display, frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_MAXIMIZE_VERTICALLY:
{
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_END);
if (flags & META_FRAME_ALLOWS_MAXIMIZE)
{
meta_core_toggle_maximize_vertically (display, frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_MINIMIZE:
{
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_END);
if (flags & META_FRAME_ALLOWS_MINIMIZE)
{
meta_core_minimize (display, frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_NONE:
/* Yaay, a sane user that doesn't use that other weird crap! */
break;
case G_DESKTOP_TITLEBAR_ACTION_LOWER:
meta_core_user_lower_and_unfocus (display,
frame->xwindow,
event->time);
break;
case G_DESKTOP_TITLEBAR_ACTION_MENU:
meta_core_show_window_menu (display,
frame->xwindow,
event->x_root,
event->y_root,
event->button,
event->time);
break;
}
return TRUE;
}
static gboolean
meta_frame_double_click_event (MetaUIFrame *frame,
GdkEventButton *event)
{
int action = meta_prefs_get_action_double_click_titlebar ();
return meta_frame_titlebar_event (frame, event, action);
}
static gboolean
meta_frame_middle_click_event (MetaUIFrame *frame,
GdkEventButton *event)
{
int action = meta_prefs_get_action_middle_click_titlebar();
return meta_frame_titlebar_event (frame, event, action);
}
static gboolean
meta_frame_right_click_event(MetaUIFrame *frame,
GdkEventButton *event)
{
int action = meta_prefs_get_action_right_click_titlebar();
return meta_frame_titlebar_event (frame, event, action);
}
static gboolean
meta_frames_button_press_event (GtkWidget *widget,
GdkEventButton *event)
{
MetaUIFrame *frame;
MetaFrames *frames;
MetaFrameControl control;
Display *display;
frames = META_FRAMES (widget);
display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
/* Remember that the display may have already done something with this event.
* If so there's probably a GrabOp in effect.
*/
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
control = get_control (frames, frame, event->x, event->y);
/* focus on click, even if click was on client area */
if (event->button == 1 &&
!(control == META_FRAME_CONTROL_MINIMIZE ||
control == META_FRAME_CONTROL_DELETE ||
control == META_FRAME_CONTROL_MAXIMIZE))
{
meta_topic (META_DEBUG_FOCUS,
"Focusing window with frame 0x%lx due to button 1 press\n",
frame->xwindow);
meta_core_user_focus (display,
frame->xwindow,
event->time);
}
/* don't do the rest of this if on client area */
if (control == META_FRAME_CONTROL_CLIENT_AREA)
return FALSE; /* not on the frame, just passed through from client */
/* We want to shade even if we have a GrabOp, since we'll have a move grab
* if we double click the titlebar.
*/
if (control == META_FRAME_CONTROL_TITLE &&
event->button == 1 &&
event->type == GDK_2BUTTON_PRESS)
{
meta_core_end_grab_op (display, event->time);
return meta_frame_double_click_event (frame, event);
}
if (meta_core_get_grab_op (display) !=
META_GRAB_OP_NONE)
return FALSE; /* already up to something */
if (event->button == 1 &&
(control == META_FRAME_CONTROL_MAXIMIZE ||
control == META_FRAME_CONTROL_UNMAXIMIZE ||
control == META_FRAME_CONTROL_MINIMIZE ||
control == META_FRAME_CONTROL_DELETE ||
control == META_FRAME_CONTROL_SHADE ||
control == META_FRAME_CONTROL_UNSHADE ||
control == META_FRAME_CONTROL_ABOVE ||
control == META_FRAME_CONTROL_UNABOVE ||
control == META_FRAME_CONTROL_STICK ||
control == META_FRAME_CONTROL_UNSTICK ||
control == META_FRAME_CONTROL_MENU))
{
MetaGrabOp op = META_GRAB_OP_NONE;
switch (control)
{
case META_FRAME_CONTROL_MINIMIZE:
op = META_GRAB_OP_CLICKING_MINIMIZE;
break;
case META_FRAME_CONTROL_MAXIMIZE:
op = META_GRAB_OP_CLICKING_MAXIMIZE;
break;
case META_FRAME_CONTROL_UNMAXIMIZE:
op = META_GRAB_OP_CLICKING_UNMAXIMIZE;
break;
case META_FRAME_CONTROL_DELETE:
op = META_GRAB_OP_CLICKING_DELETE;
break;
case META_FRAME_CONTROL_MENU:
op = META_GRAB_OP_CLICKING_MENU;
break;
case META_FRAME_CONTROL_SHADE:
op = META_GRAB_OP_CLICKING_SHADE;
break;
case META_FRAME_CONTROL_UNSHADE:
op = META_GRAB_OP_CLICKING_UNSHADE;
break;
case META_FRAME_CONTROL_ABOVE:
op = META_GRAB_OP_CLICKING_ABOVE;
break;
case META_FRAME_CONTROL_UNABOVE:
op = META_GRAB_OP_CLICKING_UNABOVE;
break;
case META_FRAME_CONTROL_STICK:
op = META_GRAB_OP_CLICKING_STICK;
break;
case META_FRAME_CONTROL_UNSTICK:
op = META_GRAB_OP_CLICKING_UNSTICK;
break;
default:
g_assert_not_reached ();
break;
}
meta_core_begin_grab_op (display,
frame->xwindow,
op,
TRUE,
TRUE,
event->button,
0,
event->time,
event->x_root,
event->y_root);
frame->prelit_control = control;
redraw_control (frames, frame, control);
if (op == META_GRAB_OP_CLICKING_MENU)
{
MetaFrameGeometry fgeom;
GdkRectangle *rect;
int dx, dy;
meta_frames_calc_geometry (frames, frame, &fgeom);
rect = control_rect (META_FRAME_CONTROL_MENU, &fgeom);
/* get delta to convert to root coords */
dx = event->x_root - event->x;
dy = event->y_root - event->y;
/* Align to the right end of the menu rectangle if RTL */
if (meta_ui_get_direction() == META_UI_DIRECTION_RTL)
dx += rect->width;
meta_core_show_window_menu (display,
frame->xwindow,
rect->x + dx,
rect->y + rect->height + dy,
event->button,
event->time);
}
}
else if (event->button == 1 &&
(control == META_FRAME_CONTROL_RESIZE_SE ||
control == META_FRAME_CONTROL_RESIZE_S ||
control == META_FRAME_CONTROL_RESIZE_SW ||
control == META_FRAME_CONTROL_RESIZE_NE ||
control == META_FRAME_CONTROL_RESIZE_N ||
control == META_FRAME_CONTROL_RESIZE_NW ||
control == META_FRAME_CONTROL_RESIZE_E ||
control == META_FRAME_CONTROL_RESIZE_W))
{
MetaGrabOp op;
op = META_GRAB_OP_NONE;
switch (control)
{
case META_FRAME_CONTROL_RESIZE_SE:
op = META_GRAB_OP_RESIZING_SE;
break;
case META_FRAME_CONTROL_RESIZE_S:
op = META_GRAB_OP_RESIZING_S;
break;
case META_FRAME_CONTROL_RESIZE_SW:
op = META_GRAB_OP_RESIZING_SW;
break;
case META_FRAME_CONTROL_RESIZE_NE:
op = META_GRAB_OP_RESIZING_NE;
break;
case META_FRAME_CONTROL_RESIZE_N:
op = META_GRAB_OP_RESIZING_N;
break;
case META_FRAME_CONTROL_RESIZE_NW:
op = META_GRAB_OP_RESIZING_NW;
break;
case META_FRAME_CONTROL_RESIZE_E:
op = META_GRAB_OP_RESIZING_E;
break;
case META_FRAME_CONTROL_RESIZE_W:
op = META_GRAB_OP_RESIZING_W;
break;
default:
g_assert_not_reached ();
break;
}
meta_core_begin_grab_op (display,
frame->xwindow,
op,
TRUE,
TRUE,
event->button,
0,
event->time,
event->x_root,
event->y_root);
}
else if (control == META_FRAME_CONTROL_TITLE &&
event->button == 1)
{
MetaFrameFlags flags;
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_END);
if (flags & META_FRAME_ALLOWS_MOVE)
{
meta_core_begin_grab_op (display,
frame->xwindow,
META_GRAB_OP_MOVING,
TRUE,
TRUE,
event->button,
0,
event->time,
event->x_root,
event->y_root);
}
}
else if (event->button == 2)
{
return meta_frame_middle_click_event (frame, event);
}
else if (event->button == 3)
{
return meta_frame_right_click_event (frame, event);
}
return TRUE;
}
void
meta_frames_notify_menu_hide (MetaFrames *frames)
{
Display *display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
if (meta_core_get_grab_op (display) ==
META_GRAB_OP_CLICKING_MENU)
{
Window grab_frame;
grab_frame = meta_core_get_grab_frame (display);
if (grab_frame != None)
{
MetaUIFrame *frame;
frame = meta_frames_lookup_window (frames, grab_frame);
if (frame)
{
redraw_control (frames, frame,
META_FRAME_CONTROL_MENU);
meta_core_end_grab_op (display, CurrentTime);
}
}
}
}
static gboolean
meta_frames_button_release_event (GtkWidget *widget,
GdkEventButton *event)
{
MetaUIFrame *frame;
MetaFrames *frames;
MetaGrabOp op;
Display *display;
frames = META_FRAMES (widget);
display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
op = meta_core_get_grab_op (display);
if (op == META_GRAB_OP_NONE)
return FALSE;
/* We only handle the releases we handled the presses for (things
* involving frame controls). Window ops that don't require a
* frame are handled in the Xlib part of the code, display.c/window.c
*/
if (frame->xwindow == meta_core_get_grab_frame (display) &&
((int) event->button) == meta_core_get_grab_button (display))
{
MetaFrameControl control;
control = get_control (frames, frame, event->x, event->y);
switch (op)
{
case META_GRAB_OP_CLICKING_MINIMIZE:
if (control == META_FRAME_CONTROL_MINIMIZE)
meta_core_minimize (display, frame->xwindow);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_MAXIMIZE:
if (control == META_FRAME_CONTROL_MAXIMIZE)
{
/* Focus the window on the maximize */
meta_core_user_focus (display,
frame->xwindow,
event->time);
meta_core_maximize (display, frame->xwindow);
}
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_UNMAXIMIZE:
if (control == META_FRAME_CONTROL_UNMAXIMIZE)
meta_core_unmaximize (display, frame->xwindow);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_DELETE:
if (control == META_FRAME_CONTROL_DELETE)
meta_core_delete (display, frame->xwindow, event->time);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_MENU:
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_SHADE:
if (control == META_FRAME_CONTROL_SHADE)
meta_core_shade (display, frame->xwindow, event->time);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_UNSHADE:
if (control == META_FRAME_CONTROL_UNSHADE)
meta_core_unshade (display, frame->xwindow, event->time);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_ABOVE:
if (control == META_FRAME_CONTROL_ABOVE)
meta_core_make_above (display, frame->xwindow);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_UNABOVE:
if (control == META_FRAME_CONTROL_UNABOVE)
meta_core_unmake_above (display, frame->xwindow);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_STICK:
if (control == META_FRAME_CONTROL_STICK)
meta_core_stick (display, frame->xwindow);
meta_core_end_grab_op (display, event->time);
break;
case META_GRAB_OP_CLICKING_UNSTICK:
if (control == META_FRAME_CONTROL_UNSTICK)
meta_core_unstick (display, frame->xwindow);
meta_core_end_grab_op (display, event->time);
break;
default:
break;
}
/* Update the prelit control regardless of what button the mouse
* was released over; needed so that the new button can become
* prelit so to let the user know that it can now be pressed.
* :)
*/
meta_frames_update_prelit_control (frames, frame, control);
}
return TRUE;
}
static void
meta_frames_update_prelit_control (MetaFrames *frames,
MetaUIFrame *frame,
MetaFrameControl control)
{
MetaFrameControl old_control;
MetaCursor cursor;
meta_verbose ("Updating prelit control from %u to %u\n",
frame->prelit_control, control);
cursor = META_CURSOR_DEFAULT;
switch (control)
{
case META_FRAME_CONTROL_CLIENT_AREA:
break;
case META_FRAME_CONTROL_NONE:
break;
case META_FRAME_CONTROL_TITLE:
break;
case META_FRAME_CONTROL_DELETE:
break;
case META_FRAME_CONTROL_MENU:
break;
case META_FRAME_CONTROL_MINIMIZE:
break;
case META_FRAME_CONTROL_MAXIMIZE:
break;
case META_FRAME_CONTROL_UNMAXIMIZE:
break;
case META_FRAME_CONTROL_SHADE:
break;
case META_FRAME_CONTROL_UNSHADE:
break;
case META_FRAME_CONTROL_ABOVE:
break;
case META_FRAME_CONTROL_UNABOVE:
break;
case META_FRAME_CONTROL_STICK:
break;
case META_FRAME_CONTROL_UNSTICK:
break;
case META_FRAME_CONTROL_RESIZE_SE:
cursor = META_CURSOR_SE_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_S:
cursor = META_CURSOR_SOUTH_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_SW:
cursor = META_CURSOR_SW_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_N:
cursor = META_CURSOR_NORTH_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_NE:
cursor = META_CURSOR_NE_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_NW:
cursor = META_CURSOR_NW_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_W:
cursor = META_CURSOR_WEST_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_E:
cursor = META_CURSOR_EAST_RESIZE;
break;
}
/* set/unset the prelight cursor */
meta_core_set_screen_cursor (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
frame->xwindow,
cursor);
switch (control)
{
case META_FRAME_CONTROL_MENU:
case META_FRAME_CONTROL_MINIMIZE:
case META_FRAME_CONTROL_MAXIMIZE:
case META_FRAME_CONTROL_DELETE:
case META_FRAME_CONTROL_SHADE:
case META_FRAME_CONTROL_UNSHADE:
case META_FRAME_CONTROL_ABOVE:
case META_FRAME_CONTROL_UNABOVE:
case META_FRAME_CONTROL_STICK:
case META_FRAME_CONTROL_UNSTICK:
case META_FRAME_CONTROL_UNMAXIMIZE:
/* leave control set */
break;
default:
/* Only prelight buttons */
control = META_FRAME_CONTROL_NONE;
break;
}
if (control == frame->prelit_control)
return;
/* Save the old control so we can unprelight it */
old_control = frame->prelit_control;
frame->prelit_control = control;
redraw_control (frames, frame, old_control);
redraw_control (frames, frame, control);
}
static gboolean
meta_frames_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event)
{
MetaUIFrame *frame;
MetaFrames *frames;
MetaGrabOp grab_op;
Display *display;
frames = META_FRAMES (widget);
display = GDK_DISPLAY_XDISPLAY (gdk_window_get_display (event->window));
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
frames->last_motion_frame = frame;
grab_op = meta_core_get_grab_op (display);
switch (grab_op)
{
case META_GRAB_OP_CLICKING_MENU:
case META_GRAB_OP_CLICKING_DELETE:
case META_GRAB_OP_CLICKING_MINIMIZE:
case META_GRAB_OP_CLICKING_MAXIMIZE:
case META_GRAB_OP_CLICKING_UNMAXIMIZE:
case META_GRAB_OP_CLICKING_SHADE:
case META_GRAB_OP_CLICKING_UNSHADE:
case META_GRAB_OP_CLICKING_ABOVE:
case META_GRAB_OP_CLICKING_UNABOVE:
case META_GRAB_OP_CLICKING_STICK:
case META_GRAB_OP_CLICKING_UNSTICK:
{
MetaFrameControl control;
int x, y;
gdk_window_get_device_position (frame->window, event->device,
&x, &y, NULL);
/* Control is set to none unless it matches
* the current grab
*/
control = get_control (frames, frame, x, y);
if (! ((control == META_FRAME_CONTROL_MENU &&
grab_op == META_GRAB_OP_CLICKING_MENU) ||
(control == META_FRAME_CONTROL_DELETE &&
grab_op == META_GRAB_OP_CLICKING_DELETE) ||
(control == META_FRAME_CONTROL_MINIMIZE &&
grab_op == META_GRAB_OP_CLICKING_MINIMIZE) ||
((control == META_FRAME_CONTROL_MAXIMIZE ||
control == META_FRAME_CONTROL_UNMAXIMIZE) &&
(grab_op == META_GRAB_OP_CLICKING_MAXIMIZE ||
grab_op == META_GRAB_OP_CLICKING_UNMAXIMIZE)) ||
(control == META_FRAME_CONTROL_SHADE &&
grab_op == META_GRAB_OP_CLICKING_SHADE) ||
(control == META_FRAME_CONTROL_UNSHADE &&
grab_op == META_GRAB_OP_CLICKING_UNSHADE) ||
(control == META_FRAME_CONTROL_ABOVE &&
grab_op == META_GRAB_OP_CLICKING_ABOVE) ||
(control == META_FRAME_CONTROL_UNABOVE &&
grab_op == META_GRAB_OP_CLICKING_UNABOVE) ||
(control == META_FRAME_CONTROL_STICK &&
grab_op == META_GRAB_OP_CLICKING_STICK) ||
(control == META_FRAME_CONTROL_UNSTICK &&
grab_op == META_GRAB_OP_CLICKING_UNSTICK)))
control = META_FRAME_CONTROL_NONE;
/* Update prelit control and cursor */
meta_frames_update_prelit_control (frames, frame, control);
}
break;
case META_GRAB_OP_NONE:
{
MetaFrameControl control;
int x, y;
gdk_window_get_device_position (frame->window, event->device,
&x, &y, NULL);
control = get_control (frames, frame, x, y);
/* Update prelit control and cursor */
meta_frames_update_prelit_control (frames, frame, control);
}
break;
default:
break;
}
return TRUE;
}
static gboolean
meta_frames_destroy_event (GtkWidget *widget,
GdkEventAny *event)
{
MetaUIFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
static void
setup_bg_cr (cairo_t *cr, GdkWindow *window, int x_offset, int y_offset)
{
GdkWindow *parent = gdk_window_get_parent (window);
cairo_pattern_t *bg_pattern;
bg_pattern = gdk_window_get_background_pattern (window);
if (bg_pattern == NULL && parent)
{
gint window_x, window_y;
gdk_window_get_position (window, &window_x, &window_y);
setup_bg_cr (cr, parent, x_offset + window_x, y_offset + window_y);
}
else if (bg_pattern)
{
cairo_translate (cr, - x_offset, - y_offset);
cairo_set_source (cr, bg_pattern);
cairo_translate (cr, x_offset, y_offset);
}
}
static void
clip_region_to_visible_frame_border (cairo_region_t *region,
MetaUIFrame *frame)
{
cairo_rectangle_int_t area;
cairo_region_t *frame_border;
MetaFrameFlags flags;
MetaFrameType type;
MetaFrameBorders borders;
Display *display;
int frame_width, frame_height;
display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_FRAME_WIDTH, &frame_width,
META_CORE_GET_FRAME_HEIGHT, &frame_height,
META_CORE_GET_END);
meta_theme_get_frame_borders (meta_theme_get_current (),
type, frame->text_height, flags,
&borders);
/* Visible frame rect */
area.x = borders.invisible.left;
area.y = borders.invisible.top;
area.width = frame_width - borders.invisible.left - borders.invisible.right;
area.height = frame_height - borders.invisible.top - borders.invisible.bottom;
frame_border = cairo_region_create_rectangle (&area);
/* Client rect */
area.x += borders.visible.left;
area.y += borders.visible.top;
area.width -= borders.visible.left + borders.visible.right;
area.height -= borders.visible.top + borders.visible.bottom;
/* Visible frame border */
cairo_region_subtract_rectangle (frame_border, &area);
cairo_region_intersect (region, frame_border);
cairo_region_destroy (frame_border);
}
#define TAU (2*M_PI)
/*
* Draw the opaque and semi-opaque pixels of this frame into a mask.
*
* (0,0) in Cairo coordinates is assumed to be the top left corner of the
* invisible border.
*
* The parts of @cr's surface in the clip region are assumed to be
* initialized to fully-transparent, and the clip region is assumed to
* contain the invisible border and the visible parts of the frame, but
* not the client area.
*
* This function uses @cr to draw pixels of arbitrary color (it will
* typically be drawing in a %CAIRO_FORMAT_A8 surface, so the color is
* discarded anyway) with appropriate alpha values to reproduce this
* frame's alpha channel, as a mask to be applied to an opaque pixmap.
*
* @frame: This frame
* @xwindow: The X window for the frame, which has the client window as a child
* @width: The width of the framed window including any invisible borders
* @height: The height of the framed window including any invisible borders
* @cr: Used to draw the resulting mask
*/
void
meta_frames_get_mask (MetaFrames *frames,
Window xwindow,
guint width,
guint height,
cairo_t *cr)
{
MetaUIFrame *frame = meta_frames_lookup_window (frames, xwindow);
float top_left, top_right, bottom_left, bottom_right;
int x, y;
MetaFrameBorders borders;
if (frame == NULL)
meta_bug ("No such frame 0x%lx\n", xwindow);
cairo_save (cr);
meta_ui_frame_get_borders (frames, frame, &borders);
meta_ui_frame_get_corner_radiuses (frames, frame,
&top_left, &top_right,
&bottom_left, &bottom_right);
/* top left */
x = borders.invisible.left;
y = borders.invisible.top;
cairo_arc (cr,
x + top_left,
y + top_left,
top_left,
2 * TAU / 4,
3 * TAU / 4);
/* top right */
x = width - borders.invisible.right - top_right;
y = borders.invisible.top;
cairo_arc (cr,
x,
y + top_right,
top_right,
3 * TAU / 4,
4 * TAU / 4);
/* bottom right */
x = width - borders.invisible.right - bottom_right;
y = height - borders.invisible.bottom - bottom_right;
cairo_arc (cr,
x,
y,
bottom_right,
0 * TAU / 4,
1 * TAU / 4);
/* bottom left */
x = borders.invisible.left;
y = height - borders.invisible.bottom - bottom_left;
cairo_arc (cr,
x + bottom_left,
y,
bottom_left,
1 * TAU / 4,
2 * TAU / 4);
cairo_set_source_rgba (cr, 1, 1, 1, 1);
cairo_fill (cr);
cairo_restore (cr);
}
static gboolean
meta_frames_draw (GtkWidget *widget,
cairo_t *cr)
{
MetaUIFrame *frame;
MetaFrames *frames;
cairo_rectangle_int_t clip;
cairo_region_t *region;
cairo_surface_t *target;
frames = META_FRAMES (widget);
target = cairo_get_target (cr);
gdk_cairo_get_clip_rectangle (cr, &clip);
g_assert (cairo_surface_get_type (target) == CAIRO_SURFACE_TYPE_XLIB);
frame = meta_frames_lookup_window (frames, cairo_xlib_surface_get_drawable (target));
if (frame == NULL)
return FALSE;
region = cairo_region_create_rectangle (&clip);
clip_region_to_visible_frame_border (region, frame);
if (cairo_region_is_empty (region))
goto out;
gdk_cairo_region (cr, region);
cairo_clip (cr);
cairo_save (cr);
setup_bg_cr (cr, frame->window, 0, 0);
cairo_paint (cr);
cairo_restore (cr);
meta_frames_paint (frames, frame, cr);
out:
cairo_region_destroy (region);
return TRUE;
}
static void
meta_frames_paint (MetaFrames *frames,
MetaUIFrame *frame,
cairo_t *cr)
{
MetaFrameFlags flags;
MetaFrameType type;
GdkPixbuf *mini_icon;
GdkPixbuf *icon;
int w, h;
MetaButtonState button_states[META_BUTTON_TYPE_LAST];
Window grab_frame;
int i;
MetaButtonLayout button_layout;
MetaGrabOp grab_op;
Display *display;
display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
for (i = 0; i < META_BUTTON_TYPE_LAST; i++)
button_states[i] = META_BUTTON_STATE_NORMAL;
grab_frame = meta_core_get_grab_frame (display);
grab_op = meta_core_get_grab_op (display);
if (grab_frame != frame->xwindow)
grab_op = META_GRAB_OP_NONE;
/* Set prelight state */
switch (frame->prelit_control)
{
case META_FRAME_CONTROL_MENU:
if (grab_op == META_GRAB_OP_CLICKING_MENU)
button_states[META_BUTTON_TYPE_MENU] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_MENU] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_MINIMIZE:
if (grab_op == META_GRAB_OP_CLICKING_MINIMIZE)
button_states[META_BUTTON_TYPE_MINIMIZE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_MINIMIZE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_MAXIMIZE:
if (grab_op == META_GRAB_OP_CLICKING_MAXIMIZE)
button_states[META_BUTTON_TYPE_MAXIMIZE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_MAXIMIZE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_UNMAXIMIZE:
if (grab_op == META_GRAB_OP_CLICKING_UNMAXIMIZE)
button_states[META_BUTTON_TYPE_MAXIMIZE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_MAXIMIZE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_SHADE:
if (grab_op == META_GRAB_OP_CLICKING_SHADE)
button_states[META_BUTTON_TYPE_SHADE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_SHADE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_UNSHADE:
if (grab_op == META_GRAB_OP_CLICKING_UNSHADE)
button_states[META_BUTTON_TYPE_UNSHADE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_UNSHADE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_ABOVE:
if (grab_op == META_GRAB_OP_CLICKING_ABOVE)
button_states[META_BUTTON_TYPE_ABOVE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_ABOVE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_UNABOVE:
if (grab_op == META_GRAB_OP_CLICKING_UNABOVE)
button_states[META_BUTTON_TYPE_UNABOVE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_UNABOVE] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_STICK:
if (grab_op == META_GRAB_OP_CLICKING_STICK)
button_states[META_BUTTON_TYPE_STICK] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_STICK] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_UNSTICK:
if (grab_op == META_GRAB_OP_CLICKING_UNSTICK)
button_states[META_BUTTON_TYPE_UNSTICK] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_UNSTICK] = META_BUTTON_STATE_PRELIGHT;
break;
case META_FRAME_CONTROL_DELETE:
if (grab_op == META_GRAB_OP_CLICKING_DELETE)
button_states[META_BUTTON_TYPE_CLOSE] = META_BUTTON_STATE_PRESSED;
else
button_states[META_BUTTON_TYPE_CLOSE] = META_BUTTON_STATE_PRELIGHT;
break;
default:
break;
}
meta_core_get (display, frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_MINI_ICON, &mini_icon,
META_CORE_GET_ICON, &icon,
META_CORE_GET_CLIENT_WIDTH, &w,
META_CORE_GET_CLIENT_HEIGHT, &h,
META_CORE_GET_END);
meta_frames_ensure_layout (frames, frame);
meta_prefs_get_button_layout (&button_layout);
meta_theme_draw_frame (meta_theme_get_current (),
frame->style,
cr,
type,
flags,
w, h,
frame->layout,
frame->text_height,
&button_layout,
button_states,
mini_icon, icon);
}
static void
meta_frames_set_window_background (MetaFrames *frames,
MetaUIFrame *frame)
{
MetaFrameFlags flags;
MetaFrameType type;
MetaFrameStyle *style = NULL;
gboolean frame_exists;
meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow,
META_CORE_WINDOW_HAS_FRAME, &frame_exists,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_END);
if (frame_exists)
{
style = meta_theme_get_frame_style (meta_theme_get_current (),
type, flags);
}
if (frame_exists && style->window_background_color != NULL)
{
GdkRGBA color;
GdkVisual *visual;
meta_color_spec_render (style->window_background_color,
frame->style,
&color);
/* Set A in ARGB to window_background_alpha, if we have ARGB */
visual = gtk_widget_get_visual (GTK_WIDGET (frames));
if (gdk_visual_get_depth (visual) == 32) /* we have ARGB */
{
color.alpha = style->window_background_alpha / 255.0;
}
gdk_window_set_background_rgba (frame->window, &color);
}
else
{
gtk_style_context_set_background (frame->style, frame->window);
}
}
static gboolean
meta_frames_enter_notify_event (GtkWidget *widget,
GdkEventCrossing *event)
{
MetaUIFrame *frame;
MetaFrames *frames;
MetaFrameControl control;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
control = get_control (frames, frame, event->x, event->y);
meta_frames_update_prelit_control (frames, frame, control);
return TRUE;
}
static gboolean
meta_frames_leave_notify_event (GtkWidget *widget,
GdkEventCrossing *event)
{
MetaUIFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
meta_frames_update_prelit_control (frames, frame, META_FRAME_CONTROL_NONE);
return TRUE;
}
static GdkRectangle*
control_rect (MetaFrameControl control,
MetaFrameGeometry *fgeom)
{
GdkRectangle *rect;
rect = NULL;
switch (control)
{
case META_FRAME_CONTROL_TITLE:
rect = &fgeom->title_rect;
break;
case META_FRAME_CONTROL_DELETE:
rect = &fgeom->close_rect.visible;
break;
case META_FRAME_CONTROL_MENU:
rect = &fgeom->menu_rect.visible;
break;
case META_FRAME_CONTROL_MINIMIZE:
rect = &fgeom->min_rect.visible;
break;
case META_FRAME_CONTROL_MAXIMIZE:
case META_FRAME_CONTROL_UNMAXIMIZE:
rect = &fgeom->max_rect.visible;
break;
case META_FRAME_CONTROL_SHADE:
rect = &fgeom->shade_rect.visible;
break;
case META_FRAME_CONTROL_UNSHADE:
rect = &fgeom->unshade_rect.visible;
break;
case META_FRAME_CONTROL_ABOVE:
rect = &fgeom->above_rect.visible;
break;
case META_FRAME_CONTROL_UNABOVE:
rect = &fgeom->unabove_rect.visible;
break;
case META_FRAME_CONTROL_STICK:
rect = &fgeom->stick_rect.visible;
break;
case META_FRAME_CONTROL_UNSTICK:
rect = &fgeom->unstick_rect.visible;
break;
case META_FRAME_CONTROL_RESIZE_SE:
break;
case META_FRAME_CONTROL_RESIZE_S:
break;
case META_FRAME_CONTROL_RESIZE_SW:
break;
case META_FRAME_CONTROL_RESIZE_N:
break;
case META_FRAME_CONTROL_RESIZE_NE:
break;
case META_FRAME_CONTROL_RESIZE_NW:
break;
case META_FRAME_CONTROL_RESIZE_W:
break;
case META_FRAME_CONTROL_RESIZE_E:
break;
case META_FRAME_CONTROL_NONE:
break;
case META_FRAME_CONTROL_CLIENT_AREA:
break;
}
return rect;
}
#define TOP_RESIZE_HEIGHT 4
#define CORNER_SIZE_MULT 2
static MetaFrameControl
get_control (MetaFrames *frames,
MetaUIFrame *frame,
int x, int y)
{
MetaFrameGeometry fgeom;
MetaFrameFlags flags;
MetaFrameType type;
gboolean has_vert, has_horiz;
gboolean has_north_resize;
cairo_rectangle_int_t client;
meta_frames_calc_geometry (frames, frame, &fgeom);
get_client_rect (&fgeom, fgeom.width, fgeom.height, &client);
if (POINT_IN_RECT (x, y, client))
return META_FRAME_CONTROL_CLIENT_AREA;
if (POINT_IN_RECT (x, y, fgeom.close_rect.clickable))
return META_FRAME_CONTROL_DELETE;
if (POINT_IN_RECT (x, y, fgeom.min_rect.clickable))
return META_FRAME_CONTROL_MINIMIZE;
if (POINT_IN_RECT (x, y, fgeom.menu_rect.clickable))
return META_FRAME_CONTROL_MENU;
meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
frame->xwindow,
META_CORE_GET_FRAME_FLAGS, &flags,
META_CORE_GET_FRAME_TYPE, &type,
META_CORE_GET_END);
has_north_resize = (type != META_FRAME_TYPE_ATTACHED);
has_vert = (flags & META_FRAME_ALLOWS_VERTICAL_RESIZE) != 0;
has_horiz = (flags & META_FRAME_ALLOWS_HORIZONTAL_RESIZE) != 0;
if (POINT_IN_RECT (x, y, fgeom.title_rect))
{
if (has_vert && y <= TOP_RESIZE_HEIGHT && has_north_resize)
return META_FRAME_CONTROL_RESIZE_N;
else
return META_FRAME_CONTROL_TITLE;
}
if (POINT_IN_RECT (x, y, fgeom.max_rect.clickable))
{
if (flags & META_FRAME_MAXIMIZED)
return META_FRAME_CONTROL_UNMAXIMIZE;
else
return META_FRAME_CONTROL_MAXIMIZE;
}
if (POINT_IN_RECT (x, y, fgeom.shade_rect.clickable))
{
return META_FRAME_CONTROL_SHADE;
}
if (POINT_IN_RECT (x, y, fgeom.unshade_rect.clickable))
{
return META_FRAME_CONTROL_UNSHADE;
}
if (POINT_IN_RECT (x, y, fgeom.above_rect.clickable))
{
return META_FRAME_CONTROL_ABOVE;
}
if (POINT_IN_RECT (x, y, fgeom.unabove_rect.clickable))
{
return META_FRAME_CONTROL_UNABOVE;
}
if (POINT_IN_RECT (x, y, fgeom.stick_rect.clickable))
{
return META_FRAME_CONTROL_STICK;
}
if (POINT_IN_RECT (x, y, fgeom.unstick_rect.clickable))
{
return META_FRAME_CONTROL_UNSTICK;
}
/* South resize always has priority over north resize,
* in case of overlap.
*/
if (y >= (fgeom.height - fgeom.borders.total.bottom * CORNER_SIZE_MULT) &&
x >= (fgeom.width - fgeom.borders.total.right * CORNER_SIZE_MULT))
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_SE;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_S;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_E;
}
else if (y >= (fgeom.height - fgeom.borders.total.bottom * CORNER_SIZE_MULT) &&
x <= fgeom.borders.total.left * CORNER_SIZE_MULT)
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_SW;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_S;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_W;
}
else if (y < (fgeom.borders.invisible.top * CORNER_SIZE_MULT) &&
x <= (fgeom.borders.total.left * CORNER_SIZE_MULT) && has_north_resize)
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_NW;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_N;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_W;
}
else if (y < (fgeom.borders.invisible.top * CORNER_SIZE_MULT) &&
x >= (fgeom.width - fgeom.borders.total.right * CORNER_SIZE_MULT) && has_north_resize)
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_NE;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_N;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_E;
}
else if (y < (fgeom.borders.invisible.top + TOP_RESIZE_HEIGHT))
{
if (has_vert && has_north_resize)
return META_FRAME_CONTROL_RESIZE_N;
}
else if (y >= (fgeom.height - fgeom.borders.total.bottom))
{
if (has_vert)
return META_FRAME_CONTROL_RESIZE_S;
}
else if (x <= fgeom.borders.total.left)
{
if (has_horiz)
return META_FRAME_CONTROL_RESIZE_W;
}
else if (x >= (fgeom.width - fgeom.borders.total.right))
{
if (has_horiz)
return META_FRAME_CONTROL_RESIZE_E;
}
if (y >= fgeom.borders.total.top)
return META_FRAME_CONTROL_NONE;
else
return META_FRAME_CONTROL_TITLE;
}
static void
invalidate_whole_window (MetaFrames *frames,
MetaUIFrame *frame)
{
gdk_window_invalidate_rect (frame->window, NULL, FALSE);
}
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