appDisplay: Reimplement well layout to be width-independent

Use ShellGenericContainer to implement a fully dynamic layout
for the application well.  It's still fixed to 4 columns by default,
but no longer requires a fixed width to be passed in on start.

With another chunk of work, it could likely try to adjust to
the case where we can only fit fewer than 4 items in the well.

Remove the border highlighting on mouseover, since that caused
reallocations, and the grid layout isn't trivial.

Delete the unused shell_global_get_word_with function.
This commit is contained in:
Colin Walters 2009-08-06 15:39:09 -04:00
parent 687a87d3d0
commit ebd6f4bc8f
4 changed files with 241 additions and 170 deletions

View File

@ -24,8 +24,11 @@ const GLOW_COLOR = new Clutter.Color();
GLOW_COLOR.from_pixel(0x4f6ba4ff);
const GLOW_PADDING = 5;
const APP_ICON_SIZE = 48;
const APP_PADDING = 18;
const WELL_DEFAULT_COLUMNS = 4;
const WELL_ITEM_HSPACING = 0;
const WELL_ITEM_VSPACING = 4;
const MENU_ICON_SIZE = 24;
const MENU_SPACING = 15;
@ -452,18 +455,6 @@ WellDisplayItem.prototype = {
padding: 1,
border_color: GenericDisplay.ITEM_DISPLAY_SELECTED_BACKGROUND_COLOR,
reactive: true });
this.actor.connect('enter-event', Lang.bind(this,
function(o, event) {
this.actor.border = 1;
this.actor.padding = 0;
return false;
}));
this.actor.connect('leave-event', Lang.bind(this,
function(o, event) {
this.actor.border = 0;
this.actor.padding = 1;
return false;
}));
this.actor._delegate = this;
this.actor.connect('button-release-event', Lang.bind(this, function (b, e) {
this._handleActivate();
@ -559,10 +550,6 @@ WellDisplayItem.prototype = {
return this._icon;
},
getWordWidth: function() {
return this._wordWidth;
},
setWidth: function(width) {
this._nameBox.width = width + GLOW_PADDING * 2;
}
@ -570,107 +557,200 @@ WellDisplayItem.prototype = {
Signals.addSignalMethods(WellDisplayItem.prototype);
function WellArea(width, isFavorite) {
this._init(width, isFavorite);
function WellGrid() {
this._init();
}
WellArea.prototype = {
_init : function(width, isFavorite) {
this.isFavorite = isFavorite;
WellGrid.prototype = {
_init: function() {
this.actor = new Shell.GenericContainer();
this._grid = new Tidy.Grid({ width: width, row_gap: 4 });
this._grid._delegate = this;
this._separator = new Big.Box({ border_color: GenericDisplay.ITEM_DISPLAY_NAME_COLOR,
border_top: 1,
height: 1 });
this.actor.add_actor(this._separator);
this._separatorIndex = 0;
this._cachedSeparatorY = 0;
this.actor = this._grid;
this.actor.connect('get-preferred-width', Lang.bind(this, this._getPreferredWidth));
this.actor.connect('get-preferred-height', Lang.bind(this, this._getPreferredHeight));
this.actor.connect('allocate', Lang.bind(this, this._allocate));
},
redisplay: function (infos) {
let children;
_getPreferredWidth: function (grid, forHeight, alloc) {
let [itemMin, itemNatural] = this._getItemPreferredWidth();
let children = this._getItemChildren();
let nColumns;
if (children.length < WELL_DEFAULT_COLUMNS)
nColumns = children.length;
else
nColumns = WELL_DEFAULT_COLUMNS;
let spacing = Math.max(nColumns - 1, 0) * WELL_ITEM_HSPACING;
alloc.min_size = itemMin * nColumns + spacing;
alloc.natural_size = itemNatural * nColumns + spacing;
},
children = this._grid.get_children();
children.forEach(Lang.bind(this, function (v) {
v.destroy();
}));
_getPreferredHeight: function (grid, forWidth, alloc) {
let [rows, columns, itemWidth, itemHeight] = this._computeLayout(forWidth);
let totalVerticalSpacing = Math.max(rows - 1, 0) * WELL_ITEM_VSPACING;
this._maxWordWidth = 0;
let displays = []
for (let i = 0; i < infos.length; i++) {
let app = infos[i];
let display = new WellDisplayItem(app, this.isFavorite);
displays.push(display);
let width = display.getWordWidth();
if (width > this._maxWordWidth)
this._maxWordWidth = width;
display.connect('activated', Lang.bind(this, function (display) {
this.emit('activated', display);
}));
this.actor.add_actor(display.actor);
let [separatorMin, separatorNatural] = this._separator.get_preferred_height(forWidth);
alloc.min_size = alloc.natural_size = rows * itemHeight + totalVerticalSpacing + separatorNatural;
},
_allocate: function (grid, box, flags) {
let children = this._getItemChildren();
let availWidth = box.x2 - box.x1;
let availHeight = box.y2 - box.y1;
let [rows, columns, itemWidth, itemHeight] = this._computeLayout(availWidth);
let [separatorMin, separatorNatural] = this._separator.get_preferred_height(-1);
let x = box.x1;
let y = box.y1;
let columnIndex = 0;
for (let i = 0; i < children.length; i++) {
let [childMinWidth, childMinHeight,
childNaturalWidth, childNaturalHeight] = children[i].get_preferred_size();
/* Center the item in its allocation */
let width = Math.min(itemWidth, childNaturalWidth);
let height = Math.min(itemHeight, childNaturalHeight);
let horizSpacing = (itemWidth - width) / 2;
let vertSpacing = (itemHeight - height) / 2;
let childBox = new Clutter.ActorBox();
childBox.x1 = Math.floor(x + horizSpacing);
childBox.y1 = Math.floor(y + vertSpacing);
childBox.x2 = childBox.x1 + width;
childBox.y2 = childBox.y1 + height;
children[i].allocate(childBox, flags);
let atSeparator = (i == this._separatorIndex - 1);
columnIndex++;
if (columnIndex == columns || atSeparator) {
columnIndex = 0;
}
if (columnIndex == 0) {
y += itemHeight + WELL_ITEM_VSPACING;
x = box.x1;
} else {
x += itemWidth + WELL_ITEM_HSPACING;
}
if (atSeparator) {
y += separatorNatural + WELL_ITEM_VSPACING;
}
}
this._displays = displays;
let separatorRowIndex = Math.ceil(this._separatorIndex / columns);
/* Allocate the separator */
let childBox = new Clutter.ActorBox();
childBox.x1 = box.x1;
childBox.y1 = (itemHeight + WELL_ITEM_VSPACING) * separatorRowIndex;
this._cachedSeparatorY = childBox.y1;
childBox.x2 = box.x2;
childBox.y2 = childBox.y1+separatorNatural;
this._separator.allocate(childBox, flags);
},
getWordWidth: function() {
return this._maxWordWidth;
setSeparatorIndex: function (index) {
this._separatorIndex = index;
this.actor.queue_relayout();
},
setItemWidth: function(width) {
for (let i = 0; i < this._displays.length; i++) {
let display = this._displays[i];
display.setWidth(width);
removeAll: function () {
let itemChildren = this._getItemChildren();
for (let i = 0; i < itemChildren.length; i++) {
itemChildren[i].destroy();
}
this._separatorIndex = 0;
},
// Draggable target interface
acceptDrop : function(source, actor, x, y, time) {
let global = Shell.Global.get();
isBeforeSeparator: function(x, y) {
return y < this._cachedSeparatorY;
},
let id = null;
if (source instanceof WellDisplayItem) {
id = source.appInfo.get_id();
} else if (source instanceof AppDisplayItem) {
id = source.getId();
} else if (source instanceof Workspaces.WindowClone) {
let appMonitor = Shell.AppMonitor.get_default();
let app = appMonitor.get_window_app(source.metaWindow);
id = app.get_id();
if (id === null)
return false;
_getItemChildren: function () {
let children = this.actor.get_children();
children.shift();
return children;
},
_computeLayout: function (forWidth) {
let [itemMinWidth, itemNaturalWidth] = this._getItemPreferredWidth();
let columnsNatural;
let i;
let children = this._getItemChildren();
let nColumns;
if (children.length < WELL_DEFAULT_COLUMNS)
nColumns = children.length;
else
nColumns = WELL_DEFAULT_COLUMNS;
if (forWidth >= 0 && forWidth < minWidth) {
log("WellGrid: trying to allocate for width " + forWidth + " but min is " + minWidth);
/* FIXME - we should fall back to fewer than WELL_DEFAULT_COLUMNS here */
}
let horizSpacingTotal = Math.max(nColumns - 1, 0) * WELL_ITEM_HSPACING;
let minWidth = itemMinWidth * nColumns + horizSpacingTotal;
let lastColumnIndex = nColumns - 1;
let separatorColumns = lastColumnIndex - ((lastColumnIndex + this._separatorIndex) % nColumns);
let rows = Math.ceil((children.length + separatorColumns) / nColumns);
let itemWidth;
if (forWidth < 0) {
itemWidth = itemNaturalWidth;
} else {
return false;
itemWidth = Math.max(forWidth - horizSpacingTotal, 0) / nColumns;
}
let appSystem = Shell.AppSystem.get_default();
if (source.isFavorite && (!this.isFavorite)) {
Mainloop.idle_add(function () {
appSystem.remove_favorite(id);
});
} else if ((!source.isFavorite) && this.isFavorite) {
Mainloop.idle_add(function () {
appSystem.add_favorite(id);
});
} else {
return false;
let itemNaturalHeight = 0;
for (let i = 0; i < children.length; i++) {
let [childMin, childNatural] = children[i].get_preferred_height(itemWidth);
if (childNatural > itemNaturalHeight)
itemNaturalHeight = childNatural;
}
return true;
return [rows, WELL_DEFAULT_COLUMNS, itemWidth, itemNaturalHeight];
},
_getItemPreferredWidth: function () {
let children = this._getItemChildren();
let minWidth = 0;
let naturalWidth = 0;
for (let i = 0; i < children.length; i++) {
let [childMin, childNatural] = children[i].get_preferred_width(-1);
if (childMin > minWidth)
minWidth = childMin;
if (childNatural > naturalWidth)
naturalWidth = childNatural;
}
return [minWidth, naturalWidth];
}
}
Signals.addSignalMethods(WellArea.prototype);
function AppWell(width) {
this._init(width);
function AppWell() {
this._init();
}
AppWell.prototype = {
_init : function(width) {
_init : function() {
this._menus = [];
this._menuDisplays = [];
this.actor = new Big.Box({ orientation: Big.BoxOrientation.VERTICAL,
spacing: 4,
width: width });
x_align: Big.BoxAlignment.CENTER });
this.actor._delegate = this;
this._grid = new WellGrid();
this.actor.append(this._grid.actor, Big.BoxPackFlags.EXPAND);
this._appSystem = Shell.AppSystem.get_default();
this._appMonitor = Shell.AppMonitor.get_default();
@ -685,23 +765,6 @@ AppWell.prototype = {
this._redisplay();
}));
this._favoritesArea = new WellArea(width, true);
this._favoritesArea.connect('activated', Lang.bind(this, function (a, display) {
Main.overlay.hide();
}));
this.actor.append(this._favoritesArea.actor, Big.BoxPackFlags.NONE);
this._runningBox = new Big.Box({ border_color: GenericDisplay.ITEM_DISPLAY_NAME_COLOR,
border_top: 1,
corner_radius: 3,
padding_top: GenericDisplay.PREVIEW_BOX_PADDING });
this._runningArea = new WellArea(width, false);
this._runningArea.connect('activated', Lang.bind(this, function (a, display) {
Main.overlay.hide();
}));
this._runningBox.append(this._runningArea.actor, Big.BoxPackFlags.EXPAND);
this.actor.append(this._runningBox, Big.BoxPackFlags.NONE);
this._redisplay();
},
@ -717,36 +780,86 @@ AppWell.prototype = {
return result;
},
_redisplay: function() {
/* hardcode here pending some design about how exactly activities behave */
_arrayValues: function(array) {
return array.reduce(function (values, id, index) {
values[id] = index; return values; }, {});
},
_redisplay: function () {
this._grid.removeAll();
let favoriteIds = this._appSystem.get_favorites();
let favoriteIdsHash = this._arrayValues(favoriteIds);
/* hardcode here pending some design about how exactly desktop contexts behave */
let contextId = "";
let arrayToObject = function(a) {
let o = {};
for (let i = 0; i < a.length; i++)
o[a[i]] = 1;
return o;
};
let favoriteIds = this._appSystem.get_favorites();
let favoriteIdsObject = arrayToObject(favoriteIds);
let runningIds = this._appMonitor.get_running_app_ids(contextId).filter(function (e) {
return !(e in favoriteIdsObject);
return !(e in favoriteIdsHash);
});
let favorites = this._lookupApps(favoriteIds);
let running = this._lookupApps(runningIds);
this._favoritesArea.redisplay(favorites);
this._runningArea.redisplay(running);
let maxWidth = this._favoritesArea.getWordWidth();
if (this._runningArea.getWordWidth() > maxWidth)
maxWidth = this._runningArea.getWordWidth();
this._favoritesArea.setItemWidth(maxWidth);
this._runningArea.setItemWidth(maxWidth);
// If it's empty, we hide it so the top border doesn't show up
if (running.length == 0)
this._runningBox.hide();
else
this._runningBox.show();
let displays = []
this._addApps(favorites, true);
this._grid.setSeparatorIndex(favorites.length);
this._addApps(running, false);
this._displays = displays;
},
_addApps: function(apps) {
for (let i = 0; i < apps.length; i++) {
let app = apps[i];
let display = new WellDisplayItem(app, this.isFavorite);
display.connect('activated', Lang.bind(this, function (display) {
Main.overlay.hide();
}));
this._grid.actor.add_actor(display.actor);
}
},
// Draggable target interface
acceptDrop : function(source, actor, x, y, time) {
let global = Shell.Global.get();
let id = null;
if (source instanceof WellDisplayItem) {
id = source.appInfo.get_id();
} else if (source instanceof AppDisplayItem) {
id = source.getId();
} else if (source instanceof Workspaces.WindowClone) {
let appMonitor = Shell.AppMonitor.get_default();
let app = appMonitor.get_window_app(source.metaWindow);
id = app.get_id();
}
if (id == null) {
return false;
}
let appSystem = Shell.AppSystem.get_default();
let favoriteIds = this._appSystem.get_favorites();
let favoriteIdsObject = this._arrayValues(favoriteIds);
let dropIsFavorite = this._grid.isBeforeSeparator(x - this._grid.actor.x,
y - this._grid.actor.y);
let srcIsFavorite = (id in favoriteIdsObject);
if (srcIsFavorite && (!dropIsFavorite)) {
Mainloop.idle_add(function () {
appSystem.remove_favorite(id);
return false;
});
} else if ((!srcIsFavorite) && dropIsFavorite) {
Mainloop.idle_add(function () {
appSystem.add_favorite(id);
return false;
});
} else {
return false;
}
return true;
}
};

View File

@ -428,7 +428,7 @@ Dash.prototype = {
this._appsContent = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL });
this._appsSection.append(this._appsContent, Big.BoxPackFlags.EXPAND);
this._appWell = new AppDisplay.AppWell(this._width);
this._appWell = new AppDisplay.AppWell();
this._appsContent.append(this._appWell.actor, Big.BoxPackFlags.EXPAND);
this._moreAppsPane = null;

View File

@ -911,43 +911,3 @@ shell_global_create_root_pixmap_actor (ShellGlobal *global)
return clutter_clone_new (global->root_pixmap);
}
/**
* shell_global_get_max_word_width:
* @global:
* @ref: Actor to use for font information
* @text: Text to analyze
* @font: Given font size to use
*
* Compute the largest pixel size among the individual words in text, when
* rendered in the given font.
*/
guint
shell_global_get_max_word_width (ShellGlobal *global, ClutterActor *ref, const char *text, const char *font)
{
PangoLayout *layout;
PangoFontDescription *fontdesc;
char **components;
char **iter;
gint max;
layout = clutter_actor_create_pango_layout (ref, NULL);
fontdesc = pango_font_description_from_string (font);
pango_layout_set_font_description (layout, fontdesc);
pango_font_description_free (fontdesc);
max = 0;
components = g_strsplit (text, " ", 0);
for (iter = components; *iter; iter++)
{
char *component = *iter;
gint width, height;
pango_layout_set_text (layout, component, -1);
pango_layout_get_pixel_size (layout, &width, &height);
if (width > max)
max = width;
}
g_object_unref (layout);
g_strfreev (components);
return (guint)max;
}

View File

@ -73,8 +73,6 @@ void shell_global_format_time_relative_pretty (ShellGlobal *global, guint delta,
ClutterActor *shell_global_create_root_pixmap_actor (ShellGlobal *global);
guint shell_global_get_max_word_width (ShellGlobal *global, ClutterActor *ref, const char *text, const char *font);
G_END_DECLS
#endif /* __SHELL_GLOBAL_H__ */