mangrar
19 Dec 2007, 2:52 AM
Read this thread (http://extjs.com/forum/showthread.php?t=21177) before continue.
Suppose that you want to do the same that the portal example but disposing panels in rows instead of columns. So a panel can vary in width. In Ext, does not exist a RowLayout class. I'm doing a project that I need the same as portal example but disposing panels in rows. So I thought, why not create a RowLayout?? I've never created an Ext extension, so, if somebody can help me a little, it will be gratefull.
This is the extension I've developed:
/*
// All rows are percentages -- they must add up to 1
var p = new Ext.Panel({
title: 'Row Layout - Percentage Only',
xtype:'rowlayout',
items: [{
title: 'Column 1',
rowHeight: .25
},{
title: 'Column 2',
rowHeight: .6
},{
title: 'Column 3',
rowHeight: .15
}]
});
*/
Ext.ux.RowLayout = Ext.extend(Ext.layout.ContainerLayout, {
// private
monitorResize:true,
// private
extraCls: 'x-column',
scrollOffset : 0,
// private
isValidParent : function(c, target){
return c.getEl().dom.parentNode == this.innerCt.dom;
},
// private
onLayout : function(ct, target){
var cs = ct.items.items, len = cs.length, c, i;
if(!this.innerCt){
target.addClass('x-column-layout-ct');
// the innerCt prevents wrapping and shuffling while
// the container is resizing
this.innerCt = target.createChild({cls:'x-column-inner'});
this.renderAll(ct, this.innerCt);
this.innerCt.createChild({cls:'x-clear'});
}
var size = target.getViewSize();
if(size.width < 1 && size.height < 1){ // display none?
return;
}
var w = size.width - target.getPadding('lr') - this.scrollOffset,
h = size.height - target.getPadding('tb'),
ph = h;
this.innerCt.setheight(h);
// some rows can be percentages while others are fixed
// so we need to make 2 passes
for(i = 0; i < len; i++){
c = cs[i];
if(!c.rowHeight){
ph -= (c.getSize().height + c.getEl().getMargins('tb'));
}
}
ph = ph < 0 ? 0 : ph;
for(i = 0; i < len; i++){
c = cs[i];
if(c.rowHeight){
c.setSize(Math.floor(c.rowHeight*pw) - c.getEl().getMargins('tb'));
}
}
}
/**
* @property activeItem
* @hide
*/
});
Ext.reg('rowlayout', Ext.ux.RowLayout);
In the portal example, the PortalColumn class would be renamed to PortalRow:
Ext.ux.PortalRow = Ext.extend(Ext.Container, {
layout: 'anchor',
autoEl: 'div',
defaultType: 'portlet',
cls:'x-portal-column'
});
Ext.reg('portalrow', Ext.ux.PortalRow);
I haven't tested this classes because I'm at job, but if someone wants to help me, I think this new layout is interesting. This evening I will test it.
Suppose that you want to do the same that the portal example but disposing panels in rows instead of columns. So a panel can vary in width. In Ext, does not exist a RowLayout class. I'm doing a project that I need the same as portal example but disposing panels in rows. So I thought, why not create a RowLayout?? I've never created an Ext extension, so, if somebody can help me a little, it will be gratefull.
This is the extension I've developed:
/*
// All rows are percentages -- they must add up to 1
var p = new Ext.Panel({
title: 'Row Layout - Percentage Only',
xtype:'rowlayout',
items: [{
title: 'Column 1',
rowHeight: .25
},{
title: 'Column 2',
rowHeight: .6
},{
title: 'Column 3',
rowHeight: .15
}]
});
*/
Ext.ux.RowLayout = Ext.extend(Ext.layout.ContainerLayout, {
// private
monitorResize:true,
// private
extraCls: 'x-column',
scrollOffset : 0,
// private
isValidParent : function(c, target){
return c.getEl().dom.parentNode == this.innerCt.dom;
},
// private
onLayout : function(ct, target){
var cs = ct.items.items, len = cs.length, c, i;
if(!this.innerCt){
target.addClass('x-column-layout-ct');
// the innerCt prevents wrapping and shuffling while
// the container is resizing
this.innerCt = target.createChild({cls:'x-column-inner'});
this.renderAll(ct, this.innerCt);
this.innerCt.createChild({cls:'x-clear'});
}
var size = target.getViewSize();
if(size.width < 1 && size.height < 1){ // display none?
return;
}
var w = size.width - target.getPadding('lr') - this.scrollOffset,
h = size.height - target.getPadding('tb'),
ph = h;
this.innerCt.setheight(h);
// some rows can be percentages while others are fixed
// so we need to make 2 passes
for(i = 0; i < len; i++){
c = cs[i];
if(!c.rowHeight){
ph -= (c.getSize().height + c.getEl().getMargins('tb'));
}
}
ph = ph < 0 ? 0 : ph;
for(i = 0; i < len; i++){
c = cs[i];
if(c.rowHeight){
c.setSize(Math.floor(c.rowHeight*pw) - c.getEl().getMargins('tb'));
}
}
}
/**
* @property activeItem
* @hide
*/
});
Ext.reg('rowlayout', Ext.ux.RowLayout);
In the portal example, the PortalColumn class would be renamed to PortalRow:
Ext.ux.PortalRow = Ext.extend(Ext.Container, {
layout: 'anchor',
autoEl: 'div',
defaultType: 'portlet',
cls:'x-portal-column'
});
Ext.reg('portalrow', Ext.ux.PortalRow);
I haven't tested this classes because I'm at job, but if someone wants to help me, I think this new layout is interesting. This evening I will test it.