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Bug 574702 - Give the panel a gradient background and shadow

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The panel looks nicer when it is drawn as a semi-transparent gradient
above the background color.

shell-global.[ch]: Add a function that creates vertical gradient actors.
panel.js: Change the look of the panel and put the tray in a framed box.
overlay.js: Extend the overlay background to behind the panel.
This commit is contained in:
Sander Dijkhuis 2009-03-24 19:25:07 +01:00 committed by Marina Zhurakhinskaya
parent 1fcaafdb58
commit 2b9b600710
4 changed files with 155 additions and 39 deletions
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4
js/ui/overlay.js
View File

@ -585,9 +585,9 @@ Overlay.prototype = {
let background = new Clutter.Rectangle({ color: OVERLAY_BACKGROUND_COLOR,
reactive: true,
x: 0,
y: Panel.PANEL_HEIGHT,
y: 0,
width: global.screen_width,
height: global.screen_width - Panel.PANEL_HEIGHT });
height: global.screen_width });
this._group.add_actor(background);
this._group.hide();

140
js/ui/panel.js
View File

@ -10,15 +10,36 @@ const Button = imports.ui.button;
const Main = imports.ui.main;
const PANEL_HEIGHT = 32;
const TRAY_HEIGHT = 24;
const PANEL_BACKGROUND_COLOR = new Clutter.Color();
PANEL_BACKGROUND_COLOR.from_pixel(0xeeddccff);
const TRAY_HEIGHT = 28;
const SHADOW_HEIGHT = 6;
// The panel has a transparent white background with a gradient.
const PANEL_TOP_COLOR = new Clutter.Color();
PANEL_TOP_COLOR.from_pixel(0xffffff99);
const PANEL_MIDDLE_COLOR = new Clutter.Color();
PANEL_MIDDLE_COLOR.from_pixel(0xffffff88);
const PANEL_BOTTOM_COLOR = new Clutter.Color();
PANEL_BOTTOM_COLOR.from_pixel(0xffffffaa);
const SHADOW_COLOR = new Clutter.Color();
SHADOW_COLOR.from_pixel(0x00000033);
const TRANSPARENT_COLOR = new Clutter.Color();
TRANSPARENT_COLOR.from_pixel(0x00000000);
// Darken (pressed) buttons; lightening has no effect on white backgrounds.
const PANEL_BUTTON_COLOR = new Clutter.Color();
PANEL_BUTTON_COLOR.from_pixel(0xccbbaa66);
const PANEL_BORDER_COLOR = new Clutter.Color();
PANEL_BORDER_COLOR.from_pixel(0x000000ff);
PANEL_BUTTON_COLOR.from_pixel(0x00000015);
const PRESSED_BUTTON_BACKGROUND_COLOR = new Clutter.Color();
PRESSED_BUTTON_BACKGROUND_COLOR.from_pixel(0xccbbaaff);
PRESSED_BUTTON_BACKGROUND_COLOR.from_pixel(0x00000030);
const TRAY_BACKGROUND_COLOR = new Clutter.Color();
TRAY_BACKGROUND_COLOR.from_pixel(0xefefefff);
const TRAY_BORDER_COLOR = new Clutter.Color();
TRAY_BORDER_COLOR.from_pixel(0x00000033);
const TRAY_CORNER_RADIUS = 5;
const TRAY_BORDER_WIDTH = 1;
const TRAY_PADDING = 2;
const TRAY_SPACING = 2;
function Panel() {
this._init();
@ -29,19 +50,41 @@ Panel.prototype = {
let me = this;
let global = Shell.Global.get();
this._box = new Big.Box({ background_color: PANEL_BACKGROUND_COLOR,
x: 0,
y: 0,
height: PANEL_HEIGHT + 1,
width: global.screen_width,
orientation: Big.BoxOrientation.HORIZONTAL,
spacing: 4,
border_bottom: 1,
border_color: PANEL_BORDER_COLOR });
// Put the background under the panel within a group.
this._group = new Clutter.Group();
// Create backBox, which contains two boxes, backUpper and backLower,
// for the background gradients and one for the shadow. The shadow at
// the bottom has a fixed height (packing flag NONE), and the rest of
// the height above is divided evenly between backUpper and backLower
// (with packing flag EXPAND).
let backBox = new Big.Box({ orientation: Big.BoxOrientation.VERTICAL,
x: 0,
y: 0,
width: global.screen_width,
height: PANEL_HEIGHT + SHADOW_HEIGHT });
let backUpper = global.create_vertical_gradient(PANEL_TOP_COLOR,
PANEL_MIDDLE_COLOR);
let backLower = global.create_vertical_gradient(PANEL_MIDDLE_COLOR,
PANEL_BOTTOM_COLOR);
let shadow = global.create_vertical_gradient(SHADOW_COLOR,
TRANSPARENT_COLOR);
shadow.set_height(SHADOW_HEIGHT);
backBox.append(backUpper, Big.BoxPackFlags.EXPAND);
backBox.append(backLower, Big.BoxPackFlags.EXPAND);
backBox.append(shadow, Big.BoxPackFlags.NONE);
this._group.add_actor(backBox);
let box = new Big.Box({ x: 0,
y: 0,
height: PANEL_HEIGHT,
width: global.screen_width,
orientation: Big.BoxOrientation.HORIZONTAL,
spacing: 4 });
this.button = new Button.Button("Activities", PANEL_BUTTON_COLOR, PRESSED_BUTTON_BACKGROUND_COLOR, true, null, PANEL_HEIGHT);
this._box.append(this.button.button, Big.BoxPackFlags.NONE);
box.append(this.button.button, Big.BoxPackFlags.NONE);
let statusbox = new Big.Box();
this._statusmenu = new Shell.StatusMenu();
@ -52,7 +95,7 @@ Panel.prototype = {
me._statusmenu.toggle(e);
return false;
});
this._box.append(statusbutton.button, Big.BoxPackFlags.END);
box.append(statusbutton.button, Big.BoxPackFlags.END);
// We get a deactivated event when the popup disappears
this._statusmenu.connect('deactivated', function (sm) {
statusbutton.release();
@ -63,22 +106,42 @@ Panel.prototype = {
let pad = (PANEL_HEIGHT - this._clock.height) / 2;
let clockbox = new Big.Box({ padding_top: pad,
padding_bottom: pad,
padding_left: 4,
padding_right: 4 });
clockbox.append(this._clock, Big.BoxPackFlags.NONE);
this._box.append(clockbox, Big.BoxPackFlags.END);
box.append(clockbox, Big.BoxPackFlags.END);
this._traymanager = new Shell.TrayManager({ bg_color: PANEL_BACKGROUND_COLOR });
// The tray icons live in trayBox within trayContainer.
// With Gtk 2.16, we can also use a transparent background for this.
// The trayBox is hidden when there are no tray icons.
let trayContainer = new Big.Box({ orientation: Big.BoxOrientation.VERTICAL,
y_align: Big.BoxAlignment.CENTER });
box.append(trayContainer, Big.BoxPackFlags.END);
let trayBox = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL,
height: TRAY_HEIGHT,
background_color: TRAY_BACKGROUND_COLOR,
corner_radius: TRAY_CORNER_RADIUS,
border: TRAY_BORDER_WIDTH,
border_color: TRAY_BORDER_COLOR,
padding: TRAY_PADDING,
spacing: TRAY_SPACING });
trayBox.hide();
trayContainer.append(trayBox, Big.BoxPackFlags.NONE);
this._traymanager = new Shell.TrayManager({ bg_color: TRAY_BACKGROUND_COLOR });
this._traymanager.connect('tray-icon-added',
function(o, icon) {
let pad = (PANEL_HEIGHT - icon.height) / 2;
icon._panel_box = new Big.Box({ padding_top: pad,
padding_bottom: pad });
icon._panel_box.append(icon, Big.BoxPackFlags.NONE);
me._box.append(icon._panel_box, Big.BoxPackFlags.END);
trayBox.append(icon, Big.BoxPackFlags.NONE);
// Make sure the trayBox is shown.
trayBox.show();
});
this._traymanager.connect('tray-icon-removed',
function(o, icon) {
me._box.remove_actor(icon._panel_box);
trayBox.remove_actor(icon);
if (trayBox.get_children().length == 0)
trayBox.hide();
});
this._traymanager.manage_stage(global.stage);
@ -102,7 +165,10 @@ Panel.prototype = {
me._setStruts();
});
global.stage.add_actor(this._box);
this._group.add_actor(box);
global.stage.add_actor(this._group);
global.screen.connect('restacked',
function() {
me._restacked();
@ -116,9 +182,9 @@ Panel.prototype = {
set_stage_input_area: function() {
let global = Shell.Global.get();
if (this._box.visible) {
global.set_stage_input_area(this._box.x, this._box.y,
this._box.width, this._box.height);
if (this._group.visible) {
global.set_stage_input_area(this._group.x, this._group.y,
this._group.width, PANEL_HEIGHT);
} else
global.set_stage_input_area(0, 0, 0, 0);
},
@ -161,20 +227,20 @@ Panel.prototype = {
// treats it currently...
//
// @windows is sorted bottom to top.
this._box.show();
this._group.show();
for (i = windows.length - 1; i > -1; i--) {
let layer = windows[i].get_meta_window().get_layer();
if (layer == Meta.StackLayer.OVERRIDE_REDIRECT) {
if (windows[i].x <= this._box.x &&
windows[i].x + windows[i].width >= this._box.x + this._box.width &&
windows[i].y <= this._box.y &&
windows[i].y + windows[i].height >= this._box.y + this._box.height) {
this._box.hide();
if (windows[i].x <= this._group.x &&
windows[i].x + windows[i].width >= this._group.x + this._group.width &&
windows[i].y <= this._group.y &&
windows[i].y + windows[i].height >= this._group.y + PANEL_HEIGHT) {
this._group.hide();
break;
}
} else if (layer == Meta.StackLayer.FULLSCREEN) {
this._box.hide();
this._group.hide();
break;
} else
break;

47
src/shell-global.c
View File

@ -662,3 +662,50 @@ grab_notify (GtkWidget *widget, gboolean was_grabbed, gpointer user_data)
global->input_width, global->input_height);
}
}
/**
* shell_global_create_vertical_gradient:
* @top: the color at the top
* @bottom: the color at the bottom
*
* Creates a vertical gradient actor.
*
* Return value: (transfer none): a #ClutterCairoTexture actor with the
* gradient. The texture actor is floating, hence (transfer none).
*/
ClutterCairoTexture *
shell_global_create_vertical_gradient (ClutterColor *top,
ClutterColor *bottom)
{
ClutterCairoTexture *texture;
cairo_t *cr;
cairo_pattern_t *pattern;
/* Draw the gradient on an 8x8 pixel texture. Because the gradient is drawn
* from the uppermost to the lowermost row, after stretching 1/16 of the
* texture height has the top color and 1/16 has the bottom color. The 8
* pixel width is chosen for reasons related to graphics hardware internals.
*/
texture = CLUTTER_CAIRO_TEXTURE (clutter_cairo_texture_new (8, 8));
cr = clutter_cairo_texture_create (texture);
pattern = cairo_pattern_create_linear (0, 0, 0, 8);
cairo_pattern_add_color_stop_rgba (pattern, 0,
top->red / 255.,
top->green / 255.,
top->blue / 255.,
top->alpha / 255.);
cairo_pattern_add_color_stop_rgba (pattern, 1,
bottom->red / 255.,
bottom->green / 255.,
bottom->blue / 255.,
bottom->alpha / 255.);
cairo_set_source (cr, pattern);
cairo_paint (cr);
cairo_pattern_destroy (pattern);
cairo_destroy (cr);
return texture;
}

3
src/shell-global.h
View File

@ -64,6 +64,9 @@ void shell_global_ungrab_keyboard (ShellGlobal *global);
void shell_global_reexec_self (ShellGlobal *global);
ClutterCairoTexture *shell_global_create_vertical_gradient (ClutterColor *top,
ClutterColor *bottom);
G_END_DECLS
#endif /* __SHELL_GLOBAL_H__ */