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_computeWindowMotion calculate difference between relative positions

Browse Source 
https://bugzilla.gnome.org/show_bug.cgi?id=607826
This commit is contained in:
Maxim Ermilov 2010-02-22 20:07:58 +03:00
parent 004cf3da5c
commit 8d76e362a0
1 changed files with 11 additions and 28 deletions
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39
js/ui/workspace.js
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@ -833,16 +833,15 @@ Workspace.prototype = {
* Currently this is the square of the distance between the
* centers.
*/
_computeWindowMotion: function (metaWindow, slot, slotGeometry) {
_computeWindowMotion: function (metaWindow, slot) {
let rect = new Meta.Rectangle();
metaWindow.get_outer_rect(rect);
let [slotX, slotY, slotWidth, slotHeight] = slotGeometry;
let distanceSquared;
let xDelta, yDelta;
let [xCenter, yCenter, fraction] = slot;
let xDelta, yDelta, distanceSquared;
xDelta = (rect.x + rect.width / 2) - (slotX + slotWidth / 2);
yDelta = (rect.y + rect.height / 2) - (slotY + slotHeight / 2);
xDelta = rect.x + rect.width / 2.0 - xCenter * global.screen_width;
yDelta = rect.y + rect.height / 2.0 - yCenter * global.screen_height;
distanceSquared = xDelta * xDelta + yDelta * yDelta;
return distanceSquared;
@ -854,7 +853,7 @@ Workspace.prototype = {
* Iterate over all permutations of the windows, and determine the
* permutation which has the least total motion.
*/
_orderWindowsPermutations: function (clones, slots, slotGeometries) {
_orderWindowsPermutations: function (clones, slots) {
let minimumMotionPermutation = null;
let minimumMotion = -1;
let permIndex = 0;
@ -863,9 +862,8 @@ Workspace.prototype = {
for (let i = 0; i < permutation.length; i++) {
let metaWindow = permutation[i].metaWindow;
let slot = slots[i];
let slotAbsGeometry = slotGeometries[i];
let delta = this._computeWindowMotion(metaWindow, slot, slotAbsGeometry);
let delta = this._computeWindowMotion(metaWindow, slot);
motion += delta;
}
@ -885,19 +883,18 @@ Workspace.prototype = {
* Iterate over available slots in order, placing into each one the window
* we find with the smallest motion to that slot.
*/
_orderWindowsGreedy: function(clones, slots, slotGeometries) {
_orderWindowsGreedy: function(clones, slots) {
let result = [];
let slotIndex = 0;
// Copy since we mutate below
let clonesCopy = clones.concat();
for (let i = 0; i < slots.length; i++) {
let slot = slots[i];
let slotGeometry = slotGeometries[i];
let minimumMotionIndex = -1;
let minimumMotion = -1;
for (let j = 0; j < clonesCopy.length; j++) {
let metaWindow = clonesCopy[j].metaWindow;
let delta = this._computeWindowMotion(metaWindow, slot, slotGeometry);
let delta = this._computeWindowMotion(metaWindow, slot);
if (minimumMotionIndex == -1 || delta < minimumMotion) {
minimumMotionIndex = j;
minimumMotion = delta;
@ -922,11 +919,10 @@ Workspace.prototype = {
clones.sort(function(w1, w2) {
return w2.metaWindow.get_stable_sequence() - w1.metaWindow.get_stable_sequence();
});
let slotGeometries = slots.map(Lang.bind(this, this._getSlotAbsoluteGeometry));
if (clones.length <= POSITIONING_PERMUTATIONS_MAX)
return this._orderWindowsPermutations(clones, slots, slotGeometries);
return this._orderWindowsPermutations(clones, slots);
else
return this._orderWindowsGreedy(clones, slots, slotGeometries);
return this._orderWindowsGreedy(clones, slots);
},
/**
@ -948,19 +944,6 @@ Workspace.prototype = {
return [x, y, width, height];
},
/**
* _getSlotAbsoluteGeometry:
* @slot: A layout slot
*
* Returns: the screen coordiantes [x, y, width, height]
* of a given window layout slot.
*/
_getSlotAbsoluteGeometry: function(slot) {
let [x, y, width, height] = this._getSlotRelativeGeometry(slot);
return [ this.gridX + x, this.gridY + y,
this.scale * width, this.scale * height];
},
/**
* _computeWindowRelativeLayout:
* @metaWindow: A #MetaWindow