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/* ************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2004-2007 1&1 Internet AG, Germany, http://www.1and1.org
License:
LGPL: http://www.gnu.org/licenses/lgpl.html
EPL: http://www.eclipse.org/org/documents/epl-v10.php
See the LICENSE file in the project's top-level directory for details.
Authors:
* Sebastian Werner (wpbasti)
* Andreas Ecker (ecker)
************************************************************************ */
/* ************************************************************************
#module(ui_core)
#module(ui_layout)
************************************************************************ */
qx.OO.defineClass("qx.renderer.layout.CanvasLayoutImpl", qx.renderer.layout.LayoutImpl,
function(vWidget) {
qx.renderer.layout.LayoutImpl.call(this, vWidget);
});
/*!
Global Structure:
[01] COMPUTE BOX DIMENSIONS FOR AN INDIVIDUAL CHILD
[02] COMPUTE NEEDED DIMENSIONS FOR AN INDIVIDUAL CHILD
[03] COMPUTE NEEDED DIMENSIONS FOR ALL CHILDREN
[04] UPDATE LAYOUT WHEN A CHILD CHANGES ITS OUTER DIMENSIONS
[05] UPDATE CHILD ON INNER DIMENSION CHANGES OF LAYOUT
[06] UPDATE LAYOUT ON JOB QUEUE FLUSH
[07] UPDATE CHILDREN ON JOB QUEUE FLUSH
[08] CHILDREN ADD/REMOVE/MOVE HANDLING
[09] FLUSH LAYOUT QUEUES OF CHILDREN
[10] LAYOUT CHILD
[11] DISPOSER
Inherits from qx.renderer.layout.LayoutImpl:
[03] COMPUTE NEEDED DIMENSIONS FOR ALL CHILDREN
[04] UPDATE LAYOUT WHEN A CHILD CHANGES ITS OUTER DIMENSIONS
[06] UPDATE LAYOUT ON JOB QUEUE FLUSH
[07] UPDATE CHILDREN ON JOB QUEUE FLUSH
[08] CHILDREN ADD/REMOVE/MOVE HANDLING
[09] FLUSH LAYOUT QUEUES OF CHILDREN
[11] DISPOSER
*/
/*
---------------------------------------------------------------------------
[01] COMPUTE BOX DIMENSIONS FOR AN INDIVIDUAL CHILD
---------------------------------------------------------------------------
*/
/*!
Compute and return the box width of the given child
*/
qx.Proto.computeChildBoxWidth = function(vChild)
{
var vValue = null;
if (vChild._computedLeftTypeNull || vChild._computedRightTypeNull)
{
vValue = vChild.getWidthValue();
}
else if (vChild._hasParent)
{
vValue = this.getWidget().getInnerWidth() - vChild.getLeftValue() - vChild.getRightValue();
}
return vValue || vChild._computeBoxWidthFallback();
}
/*!
Compute and return the box height of the given child
*/
qx.Proto.computeChildBoxHeight = function(vChild)
{
var vValue = null;
if (vChild._computedTopTypeNull || vChild._computedBottomTypeNull)
{
vValue = vChild.getHeightValue();
}
else if (vChild._hasParent)
{
vValue = this.getWidget().getInnerHeight() - vChild.getTopValue() - vChild.getBottomValue();
}
return vValue || vChild._computeBoxHeightFallback();
}
/*
---------------------------------------------------------------------------
[02] COMPUTE NEEDED DIMENSIONS FOR AN INDIVIDUAL CHILD
---------------------------------------------------------------------------
*/
/*!
Compute and return the needed width of the given child
*/
qx.Proto.computeChildNeededWidth = function(vChild)
{
var vLeft = vChild._computedLeftTypePercent ? null : vChild.getLeftValue();
var vRight = vChild._computedRightTypePercent ? null : vChild.getRightValue();
var vMinBox = vChild._computedMinWidthTypePercent ? null : vChild.getMinWidthValue();
var vMaxBox = vChild._computedMaxWidthTypePercent ? null : vChild.getMaxWidthValue();
if (vLeft != null && vRight != null)
{
var vBox = vChild.getPreferredBoxWidth() || 0;
}
else
{
var vBox = (vChild._computedWidthTypePercent ? null : vChild.getWidthValue()) || vChild.getPreferredBoxWidth() || 0;
}
return qx.lang.Number.limit(vBox, vMinBox, vMaxBox) + vLeft + vRight + vChild.getMarginLeft() + vChild.getMarginRight();
}
/*!
Compute and return the needed height of the given child
*/
qx.Proto.computeChildNeededHeight = function(vChild)
{
var vTop = vChild._computedTopTypePercent ? null : vChild.getTopValue();
var vBottom = vChild._computedBottomTypePercent ? null : vChild.getBottomValue();
var vMinBox = vChild._computedMinHeightTypePercent ? null : vChild.getMinHeightValue();
var vMaxBox = vChild._computedMaxHeightTypePercent ? null : vChild.getMaxHeightValue();
if (vTop != null && vBottom != null)
{
var vBox = vChild.getPreferredBoxHeight() || 0;
}
else
{
var vBox = (vChild._computedHeightTypePercent ? null : vChild.getHeightValue()) || vChild.getPreferredBoxHeight() || 0;
}
return qx.lang.Number.limit(vBox, vMinBox, vMaxBox) + vTop + vBottom + vChild.getMarginTop() + vChild.getMarginBottom();
}
/*
---------------------------------------------------------------------------
[05] UPDATE CHILD ON INNER DIMENSION CHANGES OF LAYOUT
---------------------------------------------------------------------------
*/
/*!
Actions that should be done if the inner width of the widget was changed.
Normally this includes update to percent values and ranges.
*/
qx.Proto.updateChildOnInnerWidthChange = function(vChild)
{
// this makes sure that both functions get executed before return
var vUpdatePercent = vChild._recomputePercentX();
var vUpdateRange = vChild._recomputeRangeX();
return vUpdatePercent || vUpdateRange;
}
/*!
Actions that should be done if the inner height of the widget was changed.
Normally this includes update to percent values and ranges.
*/
qx.Proto.updateChildOnInnerHeightChange = function(vChild)
{
// this makes sure that both functions get executed before return
var vUpdatePercent = vChild._recomputePercentY();
var vUpdateRange = vChild._recomputeRangeY();
return vUpdatePercent || vUpdateRange;
}
/*
---------------------------------------------------------------------------
[10] LAYOUT CHILD
---------------------------------------------------------------------------
*/
/*!
This is called from qx.ui.core.Widget and it's task is to apply the layout
(excluding border and padding) to the child.
*/
qx.Proto.layoutChild = function(vChild, vJobs)
{
this.layoutChild_sizeX_essentialWrapper(vChild, vJobs);
this.layoutChild_sizeY_essentialWrapper(vChild, vJobs);
this.layoutChild_sizeLimitX(vChild, vJobs);
this.layoutChild_sizeLimitY(vChild, vJobs);
this.layoutChild_locationX(vChild, vJobs);
this.layoutChild_locationY(vChild, vJobs);
this.layoutChild_marginX(vChild, vJobs);
this.layoutChild_marginY(vChild, vJobs);
}
if (qx.core.Client.getInstance().isMshtml() || qx.core.Client.getInstance().isOpera())
{
qx.Proto.layoutChild_sizeX = function(vChild, vJobs)
{
if (vJobs.initial || vJobs.width || vJobs.minWidth || vJobs.maxWidth || vJobs.left || vJobs.right)
{
if (vChild._computedMinWidthTypeNull && vChild._computedWidthTypeNull && vChild._computedMaxWidthTypeNull && !(!vChild._computedLeftTypeNull && !vChild._computedRightTypeNull))
{
vChild._resetRuntimeWidth();
}
else
{
vChild._applyRuntimeWidth(vChild.getBoxWidth());
}
}
}
qx.Proto.layoutChild_sizeY = function(vChild, vJobs)
{
if (vJobs.initial || vJobs.height || vJobs.minHeight || vJobs.maxHeight || vJobs.top || vJobs.bottom)
{
if (vChild._computedMinHeightTypeNull && vChild._computedHeightTypeNull && vChild._computedMaxHeightTypeNull && !(!vChild._computedTopTypeNull && !vChild._computedBottomTypeNull))
{
vChild._resetRuntimeHeight();
}
else
{
vChild._applyRuntimeHeight(vChild.getBoxHeight());
}
}
}
}
else
{
qx.Proto.layoutChild_sizeX = function(vChild, vJobs)
{
if (vJobs.initial || vJobs.width) {
vChild._computedWidthTypeNull ? vChild._resetRuntimeWidth() : vChild._applyRuntimeWidth(vChild.getWidthValue());
}
}
qx.Proto.layoutChild_sizeY = function(vChild, vJobs)
{
if (vJobs.initial || vJobs.height) {
vChild._computedHeightTypeNull ? vChild._resetRuntimeHeight() : vChild._applyRuntimeHeight(vChild.getHeightValue());
}
}
}
qx.Proto.layoutChild_locationX = function(vChild, vJobs)
{
var vWidget = this.getWidget();
if (vJobs.initial || vJobs.left || vJobs.parentPaddingLeft) {
vChild._computedLeftTypeNull ? vChild._computedRightTypeNull && vWidget.getPaddingLeft() > 0 ? vChild._applyRuntimeLeft(vWidget.getPaddingLeft()) : vChild._resetRuntimeLeft() : vChild._applyRuntimeLeft(vChild.getLeftValue() + vWidget.getPaddingLeft());
}
if (vJobs.initial || vJobs.right || vJobs.parentPaddingRight) {
vChild._computedRightTypeNull ? vChild._computedLeftTypeNull && vWidget.getPaddingRight() > 0 ? vChild._applyRuntimeRight(vWidget.getPaddingRight()) : vChild._resetRuntimeRight() : vChild._applyRuntimeRight(vChild.getRightValue() + vWidget.getPaddingRight());
}
}
qx.Proto.layoutChild_locationY = function(vChild, vJobs)
{
var vWidget = this.getWidget();
if (vJobs.initial || vJobs.top || vJobs.parentPaddingTop) {
vChild._computedTopTypeNull ? vChild._computedBottomTypeNull && vWidget.getPaddingTop() > 0 ? vChild._applyRuntimeTop(vWidget.getPaddingTop()) : vChild._resetRuntimeTop() : vChild._applyRuntimeTop(vChild.getTopValue() + vWidget.getPaddingTop());
}
if (vJobs.initial || vJobs.bottom || vJobs.parentPaddingBottom) {
vChild._computedBottomTypeNull ? vChild._computedTopTypeNull && vWidget.getPaddingBottom() > 0 ? vChild._applyRuntimeBottom(vWidget.getPaddingBottom()) : vChild._resetRuntimeBottom() : vChild._applyRuntimeBottom(vChild.getBottomValue() + vWidget.getPaddingBottom());
}
}
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