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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org
License:
LGPL 2.1: http://www.gnu.org/licenses/lgpl.html
Authors:
* Sebastian Werner (wpbasti)
* Andreas Ecker (ecker)
************************************************************************ */
/* ************************************************************************
#module(ui_basic)
#module(ui_layout)
************************************************************************ */
qx.OO.defineClass("qx.ui.layout.BoxLayout", qx.ui.core.Parent,
function(vOrientation)
{
qx.ui.core.Parent.call(this);
// apply orientation
if (qx.util.Validation.isValidString(vOrientation)) {
this.setOrientation(vOrientation);
}
});
qx.ui.layout.BoxLayout.STR_REVERSED = "-reversed";
/*
---------------------------------------------------------------------------
PROPERTIES
---------------------------------------------------------------------------
*/
/*!
The orientation of the layout control. Allowed values are "horizontal" (default) and "vertical".
*/
qx.OO.addProperty({ name : "orientation", type : "string", possibleValues : [ "horizontal", "vertical" ], addToQueueRuntime : true });
/*!
The spacing between childrens. Could be any positive integer value.
*/
qx.OO.addProperty({ name : "spacing", type : "number", defaultValue : 0, addToQueueRuntime : true, impl : "layout" });
/*!
The horizontal align of the children. Allowed values are: "left", "center" and "right"
*/
qx.OO.addProperty({ name : "horizontalChildrenAlign", type : "string", defaultValue : "left", possibleValues : [ "left", "center", "right" ], impl : "layoutOrder", addToQueueRuntime : true });
/*!
The vertical align of the children. Allowed values are: "top", "middle" and "bottom"
*/
qx.OO.addProperty({ name : "verticalChildrenAlign", type : "string", defaultValue : "top", possibleValues : [ "top", "middle", "bottom" ], impl : "layoutOrder", addToQueueRuntime : true });
/*!
Should the children be layouted in reverse order?
*/
qx.OO.addProperty({ name : "reverseChildrenOrder", type : "boolean", defaultValue : false, impl : "layoutOrder", addToQueueRuntime : true });
/*!
Should the widgets be stretched to the available width (orientation==vertical) or height (orientation==horizontal)?
This only applies if the child has not configured a own value for this axis.
*/
qx.OO.addProperty({ name : "stretchChildrenOrthogonalAxis", type : "boolean", defaultValue : true, addToQueueRuntime : true });
/*!
If there are min/max values in combination with flex try to optimize placement.
This is more complex and produces more time for the layouter but sometimes this feature is needed.
*/
qx.OO.addProperty({ name : "useAdvancedFlexAllocation", type : "boolean", defaultValue : false, addToQueueRuntime : true });
/*
---------------------------------------------------------------------------
INIT LAYOUT IMPL
---------------------------------------------------------------------------
*/
/*!
This creates an new instance of the layout impl this widget uses
*/
qx.Proto._createLayoutImpl = function() {
return this.getOrientation() == "vertical" ? new qx.renderer.layout.VerticalBoxLayoutImpl(this) : new qx.renderer.layout.HorizontalBoxLayoutImpl(this);
}
/*
---------------------------------------------------------------------------
HELPERS
---------------------------------------------------------------------------
*/
qx.Proto._layoutHorizontal = false;
qx.Proto._layoutVertical = false;
qx.Proto._layoutMode = "left";
qx.Proto.isHorizontal = function() {
return this._layoutHorizontal;
}
qx.Proto.isVertical = function() {
return this._layoutVertical;
}
qx.Proto.getLayoutMode = function()
{
if (this._layoutMode == null) {
this._updateLayoutMode();
}
return this._layoutMode;
}
qx.Proto._updateLayoutMode = function()
{
this._layoutMode = this._layoutVertical ? this.getVerticalChildrenAlign() : this.getHorizontalChildrenAlign();
if (this.getReverseChildrenOrder()) {
this._layoutMode += qx.ui.layout.BoxLayout.STR_REVERSED;
}
}
qx.Proto._invalidateLayoutMode = function() {
this._layoutMode = null;
}
/*
---------------------------------------------------------------------------
MODIFIERS
---------------------------------------------------------------------------
*/
qx.Proto._modifyOrientation = function(propValue, propOldValue, propData)
{
// update fast access variables
this._layoutHorizontal = propValue == "horizontal";
this._layoutVertical = propValue == "vertical";
// Layout Implementation
if (this._layoutImpl)
{
this._layoutImpl.dispose();
this._layoutImpl = null;
}
if (qx.util.Validation.isValidString(propValue)) {
this._layoutImpl = this._createLayoutImpl();
}
// call other core modifier
return this._modifyLayoutOrder(propValue, propOldValue, propData);
}
qx.Proto._modifyLayoutOrder = function(propValue, propOldValue, propData)
{
// update layout mode
this._invalidateLayoutMode();
// call other core modifier
return this._modifyLayout(propValue, propOldValue, propData);
}
qx.Proto._modifyLayout = function(propValue, propOldValue, propData)
{
// invalidate inner preferred dimensions
this._invalidatePreferredInnerDimensions();
// accumulated width needs to be invalidated
this._invalidateAccumulatedChildrenOuterWidth();
this._invalidateAccumulatedChildrenOuterHeight();
// make property handling happy :)
return true;
}
/*
---------------------------------------------------------------------------
ACCUMULATED CHILDREN WIDTH/HEIGHT
--------------------------------------------------------------------------------
Needed for center/middle and right/bottom alignment
---------------------------------------------------------------------------
*/
qx.OO.addCachedProperty({ name : "accumulatedChildrenOuterWidth", defaultValue : null });
qx.OO.addCachedProperty({ name : "accumulatedChildrenOuterHeight", defaultValue : null });
qx.Proto._computeAccumulatedChildrenOuterWidth = function()
{
var ch=this.getVisibleChildren(), chc, i=-1, sp=this.getSpacing(), s=-sp;
while(chc=ch[++i]) {
s += chc.getOuterWidth() + sp;
}
return s;
}
qx.Proto._computeAccumulatedChildrenOuterHeight = function()
{
var ch=this.getVisibleChildren(), chc, i=-1, sp=this.getSpacing(), s=-sp;
while(chc=ch[++i]) {
s += chc.getOuterHeight() + sp;
}
return s;
}
/*
---------------------------------------------------------------------------
STRETCHING SUPPORT
---------------------------------------------------------------------------
*/
qx.Proto._recomputeChildrenStretchingX = function()
{
var ch=this.getVisibleChildren(), chc, i=-1;
while(chc=ch[++i])
{
if (chc._recomputeStretchingX() && chc._recomputeBoxWidth()) {
chc._recomputeOuterWidth();
}
}
}
qx.Proto._recomputeChildrenStretchingY = function()
{
var ch=this.getVisibleChildren(), chc, i=-1;
while(chc=ch[++i])
{
if (chc._recomputeStretchingY() && chc._recomputeBoxHeight()) {
chc._recomputeOuterHeight();
}
}
}
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