diff options
Diffstat (limited to 'webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/renderer/layout/FlowLayoutImpl.js')
| -rw-r--r-- | webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/renderer/layout/FlowLayoutImpl.js | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/renderer/layout/FlowLayoutImpl.js b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/renderer/layout/FlowLayoutImpl.js new file mode 100644 index 0000000000..cd11e3dd86 --- /dev/null +++ b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/renderer/layout/FlowLayoutImpl.js @@ -0,0 +1,426 @@ +/* ************************************************************************ + + 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_layout) + +************************************************************************ */ + +qx.OO.defineClass("qx.renderer.layout.FlowLayoutImpl", qx.renderer.layout.LayoutImpl, +function(vWidget) { + qx.renderer.layout.LayoutImpl.call(this, vWidget); +}); + +qx.renderer.layout.FlowLayoutImpl.STR_FIRST = "getFirstVisibleChild"; +qx.renderer.layout.FlowLayoutImpl.STR_LAST = "getLastVisibleChild"; +qx.renderer.layout.FlowLayoutImpl.STR_NEXT = "getNextSibling"; +qx.renderer.layout.FlowLayoutImpl.STR_PREVIOUS = "getPreviousSibling"; + + +/*! + Global Structure: + + [01] COMPUTE BOX 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: + + [01] COMPUTE BOX DIMENSIONS FOR AN INDIVIDUAL CHILD + [02] COMPUTE NEEDED DIMENSIONS FOR AN INDIVIDUAL CHILD + [06] UPDATE LAYOUT ON JOB QUEUE FLUSH + [11] DISPOSER +*/ + + + + + + +/* +--------------------------------------------------------------------------- + [03] COMPUTE NEEDED DIMENSIONS FOR ALL CHILDREN +--------------------------------------------------------------------------- +*/ + +/*! + Compute and return the width needed by all children of this widget +*/ +qx.Proto.computeChildrenNeededWidth = function() +{ + var w = this.getWidget(); + return qx.renderer.layout.LayoutImpl.prototype.computeChildrenNeededWidth_sum.call(this) + ((w.getVisibleChildrenLength()-1) * w.getHorizontalSpacing()); +} + +/*! + Calculate the layout to get the needed height of the children +*/ +qx.Proto.computeChildrenNeededHeight = function() +{ + var vWidget = this.getWidget(); + + var vInnerWidth = vWidget.getInnerWidth(); + + var vHorizontalSpacing = vWidget.getHorizontalSpacing(); + var vVerticalSpacing = vWidget.getVerticalSpacing(); + var vReversed = vWidget.getReverseChildrenOrder(); + + var vRowWidth = 0; + var vRowHeight = 0; + + var vRowHeightSum = 0; + + for (var i=0, ch=vWidget.getVisibleChildren(), chl=ch.length, chc; i<chl; i++) + { + chc = vReversed ? ch[chl-1-i] : ch[i]; + + vRowWidth += chc.getNeededWidth(); + + if (vRowWidth > vInnerWidth) + { + vRowHeightSum += vRowHeight + vVerticalSpacing; + vRowWidth = chc.getNeededWidth(); + vRowHeight = chc.getNeededHeight(); + } + else + { + vRowHeight = Math.max(vRowHeight, chc.getNeededHeight()); + } + + vRowWidth += vHorizontalSpacing; + } + + return vRowHeightSum + vRowHeight; +} + + + + + + + +/* +--------------------------------------------------------------------------- + [04] UPDATE LAYOUT WHEN A CHILD CHANGES ITS OUTER DIMENSIONS +--------------------------------------------------------------------------- +*/ + +/*! + Things to do and layout when any of the childs changes it's outer width. + Needed by layouts where the children depends on each-other, like flow- or box-layouts. +*/ +qx.Proto.updateSelfOnChildOuterWidthChange = function(vChild) +{ + // If a child only change it's width also recompute the height + // as the layout flows around here + //this.getWidget()._recomputeNeededHeightHelper(); + this.getWidget()._invalidatePreferredInnerHeight(); +} + + + + + + +/* +--------------------------------------------------------------------------- + [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) +{ + vChild._recomputePercentX(); + vChild.addToLayoutChanges("location"); + + return true; +} + +/*! + 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) +{ + vChild._recomputePercentY(); + vChild.addToLayoutChanges("location"); + + return true; +} + + + + + + + +/* +--------------------------------------------------------------------------- + [07] UPDATE CHILDREN ON JOB QUEUE FLUSH +--------------------------------------------------------------------------- +*/ + +/*! + Updates children on special jobs +*/ +qx.Proto.updateChildrenOnJobQueueFlush = function(vQueue) +{ + if (vQueue.horizontalSpacing || vQueue.verticalSpacing || vQueue.reverseChildrenOrder || vQueue.horizontalChildrenAlign || vQueue.verticalChildrenAlign) { + this.getWidget()._addChildrenToLayoutQueue("location"); + } +} + + + + + + +/* +--------------------------------------------------------------------------- + [08] CHILDREN ADD/REMOVE/MOVE HANDLING +--------------------------------------------------------------------------- +*/ + +/*! + This method combines calls of methods which should be done if a widget should be removed from the current layout. + Needed by layouts where the children depends on each-other, like flow- or box-layouts. +*/ +qx.Proto.updateChildrenOnRemoveChild = function(vChild, vIndex) +{ + var w=this.getWidget(), ch=w.getVisibleChildren(), chl=ch.length, chc, i=-1; + + if (w.getReverseChildrenOrder()) + { + while((chc=ch[++i]) && i<vIndex) { + chc.addToLayoutChanges("location"); + } + } + else + { + i+=vIndex; + while(chc=ch[++i]) { + chc.addToLayoutChanges("location"); + } + } +} + +/*! + This method combines calls of methods which should be done if a child should be moved + inside the same parent to a new positions. + Needed by layouts where the children depends on each-other, like flow- or box-layouts. +*/ +qx.Proto.updateChildrenOnMoveChild = function(vChild, vIndex, vOldIndex) +{ + for (var i=Math.min(vIndex, vOldIndex), ch=this.getWidget().getVisibleChildren(), l=ch.length; i<l; i++) { + ch[i].addToLayoutChanges("location"); + } +} + + + + + + +/* +--------------------------------------------------------------------------- + [09] FLUSH LAYOUT QUEUES OF CHILDREN +--------------------------------------------------------------------------- +*/ + +/*! + This method have full control of the order in which the + registered (or also non-registered) children should be + layouted on the horizontal axis. +*/ + +qx.Proto.flushChildrenQueue = function(vChildrenQueue) +{ + var w=this.getWidget(), ch=w.getVisibleChildren(), chl=ch.length, chc, chh; + + if (w.getReverseChildrenOrder()) + { + // layout all childs from the first child + // with an own layout request to the end + var i=chl, changed=false; + while(chc=ch[--i]) + { + chh = chc.toHashCode(); + + if (changed || vChildrenQueue[chh]) + { + w._layoutChild(chc); + changed = true; + } + } + } + else + { + // layout all childs from the first child + // with an own layout request to the end + var i=-1, changed=false; + while(chc=ch[++i]) + { + chh = chc.toHashCode(); + + if (changed || vChildrenQueue[chh]) + { + w._layoutChild(chc); + changed = true; + } + } + } +} + + + + + + +/* +--------------------------------------------------------------------------- + [10] LAYOUT 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_marginX(vChild, vJobs); + this.layoutChild_marginY(vChild, vJobs); + + this.layoutChild_location(vChild, vJobs); +} + +if (qx.sys.Client.getInstance().isMshtml() || qx.sys.Client.getInstance().isOpera()) +{ + /*! + We need to respect all dimension properties on the horizontal axis in + internet explorer to set the 'width' style + */ + qx.Proto.layoutChild_sizeX = function(vChild, vJobs) + { + if (vJobs.initial || vJobs.width || vJobs.minWidth || vJobs.maxWidth) { + vChild._computedWidthTypeNull && vChild._computedMinWidthTypeNull && vChild._computedMaxWidthTypeNull ? vChild._resetRuntimeWidth() : vChild._applyRuntimeWidth(vChild.getBoxWidth()); + } + } + + /*! + We need to respect all dimension properties on the vertical axis in + internet explorer to set the 'height' style + */ + qx.Proto.layoutChild_sizeY = function(vChild, vJobs) + { + if (vJobs.initial || vJobs.height || vJobs.minHeight || vJobs.maxHeight) { + vChild._computedHeightTypeNull && vChild._computedMinHeightTypeNull && vChild._computedMaxHeightTypeNull ? vChild._resetRuntimeHeight() : 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_location = function(vChild, vJobs) +{ + var vWidget = this.getWidget(); + var vReverse = vWidget.getReverseChildrenOrder(); + + var vMethodBegin = vReverse ? qx.renderer.layout.FlowLayoutImpl.STR_LAST : qx.renderer.layout.FlowLayoutImpl.STR_FIRST; + var vMethodContinue = vReverse ? qx.renderer.layout.FlowLayoutImpl.STR_NEXT : qx.renderer.layout.FlowLayoutImpl.STR_PREVIOUS; + + if (vChild == vWidget[vMethodBegin]()) + { + vChild._cachedLocationHorizontal = vChild._cachedLocationVertical = vChild._cachedRow = 0; + } + else + { + var vTempChild = vChild[vMethodContinue](); + + // stupidly update cache value (check them later) + vChild._cachedLocationHorizontal = vTempChild._cachedLocationHorizontal + vTempChild.getOuterWidth() + vWidget.getHorizontalSpacing(); + vChild._cachedLocationVertical = vTempChild._cachedLocationVertical; + vChild._cachedRow = vTempChild._cachedRow; + + // check now + if ((vChild._cachedLocationHorizontal + vChild.getOuterWidth()) > vWidget.getInnerWidth()) + { + // evaluate width of previous row + vRowMax = vTempChild.getOuterHeight(); + while((vTempChild = vTempChild[vMethodContinue]()) && vTempChild._cachedRow == vChild._cachedRow) { + vRowMax = Math.max(vRowMax, vTempChild.getOuterHeight()); + } + + // switch to new row + vChild._cachedLocationHorizontal = 0; + vChild._cachedLocationVertical += vWidget.getVerticalSpacing() + vRowMax; + vChild._cachedRow++; + } + } + + // add margins and parent padding + if (vWidget.getHorizontalChildrenAlign() == "right") + { + vChild._resetRuntimeLeft(); + vChild._applyRuntimeRight(vWidget.getPaddingRight() + vChild._cachedLocationHorizontal); + } + else + { + vChild._resetRuntimeRight(); + vChild._applyRuntimeLeft(vWidget.getPaddingLeft() + vChild._cachedLocationHorizontal); + } + + if (vWidget.getVerticalChildrenAlign() == "bottom") + { + vChild._resetRuntimeTop(); + vChild._applyRuntimeBottom(vWidget.getPaddingBottom() + vChild._cachedLocationVertical); + } + else + { + vChild._resetRuntimeBottom(); + vChild._applyRuntimeTop(vWidget.getPaddingTop() + vChild._cachedLocationVertical); + } +} |