This image is showing but I can't resize it not matter the width or height values I use. Any thougt? Thankyou.
<ui:with field='res' type='com.hellomvp.client.resources.MyResources'/>
<ui:style>
.fortaImage { width:'50px'; height:'50px';}
</ui:style>
<g:DockLayoutPanel unit='EM'>
<g:north size="10">
<g:FlowPanel>
<g:Image styleName='{style.fortaImage}' resource='{res.fortaLogo}'/>
<g:InlineLabel>FortaService</g:InlineLabel>
<g:ListBox></g:ListBox>
<g:InlineLabel>DateIn</g:InlineLabel>
<d:DateBox></d:DateBox>
<g:InlineLabel>DateOut</g:InlineLabel>
<d:DateBox></d:DateBox>
<g:Button>Cerca</g:Button>
</g:FlowPanel>
</g:north>
</g:DockLayoutPanel>
When you use <g:Image resource="..."/>, GWT uses a background image. Background images cannot be resized in CSS 2.1. (I really wish it was possible!)
All you can do is either have a 50x50px version of the image on the server, or use <g:Image url="..."/> instead. This creates a normal <img src="..."/> instead of the background image, but you can't specify a ClientBundle resource here.
addStyleNames="{style.fortaImage}"
not
styleName='{style.fortaImage}'
Related
Transparent png image not showing as transparent in Xamarin Absolute Layout
<AbsoluteLayout BackgroundColor="Aqua">
<Image Source="#drawable/icon.png" AbsoluteLayout.LayoutBounds="0.5,0.5,30,30"
AbsoluteLayout.LayoutFlags="PositionProportional" />
</AbsoluteLayout>
Just change your background color to transparent in your <Image>.
Something like that.
<Image Source="#drawable/icon.png" BackgroundColor="Transparent" AbsoluteLayout.LayoutBounds="0.5,0.5,30,30"
AbsoluteLayout.LayoutFlags="PositionProportional" />
I'm working on a custom cell for a cell list that displays product information including an image and several text fields, similar to the one in the CellList sample. The images are not resources that are packaged with my app, they are on an external image server. I'd like to use UiBinder for the layout of the cell. Eventually the cell will be more complicated, but for now here is a my template that just shows a product description and image:
<ui:UiBinder
xmlns:ui="urn:ui:com.google.gwt.uibinder"
xmlns:g="urn:import:com.google.gwt.user.client.ui">
<ui:style>
</ui:style>
<ui:with field="imageSource" type="java.lang.String"/>
<ui:with field="product" type="com.mydomain.ProductProxy" />
<div ui:field="root">
<span><ui:text from="{product.getDescription}" /></span>
<ui:image url="{imageSource}" />
</div>
The CellList displays a list of descriptions but no products. If I inspect the element with Chrome I can see that the ui:image is not being compiled into an img element:
<div onclick="" __idx="0" class="GPROKKBAB" style="outline:none;" tabindex="0">
<div gwtuirendered="gwt-uid-17">
<span>E03351 </span>
<ui:image url="http://images.mydomain.com/image/product_id.jpg"></ui:image> </div></div>
Any suggestions? I'm sure it's something obvious but I've been at it for a while and I've tried a number of things with no luck.
How about simply using an HTML img?
<img src="{imageSource}" />
I am using UiBinder and a DockLayoutPanel as shown below. I am adding a custom CellTable to the ScrollPanel named "contentPanel".
When the CellTable is created for the first time, a horizonal scrollbar appears (along with the cellTableLoading.gif). Once the CellTable is finishing loading the horizontal scrollbar disappears.
How can I prevent the horizontal scrollbar from appearing in the first place?
I'd be happy to provide any other info that will help troubleshoot the problem. Many thanks!
<g:DockLayoutPanel unit='PX' styleName="{style.wrap}">
<g:north size='180'>
<g:HTMLPanel styleName='{style.header}'>
<g:Hyperlink ui:field="logoutLink" styleName="{style.login}"/>
</g:HTMLPanel>
</g:north>
<g:south size="70">
<g:HTMLPanel styleName="{style.footer}">
<g:Label>© Copyright by</g:Label>
</g:HTMLPanel>
</g:south>
<g:center>
<g:HTMLPanel styleName='{style.content}'>
<g:SimplePanel styleName='{style.left}' ui:field="navigationPanel" />
<g:ScrollPanel styleName='{style.right}' ui:field='contentPanel' />
<div style="clear: both;" ></div>
</g:HTMLPanel>
</g:center>
Impossible to tell why it happens without seeing the markup that's being generated and your CSS styles, but to turn off the scrollbars temporarily you can do the following:
// Before you load your table
contentPanel.getElement().getStyle().setOverflow(Overflow.HIDDEN);
// load your table
// ....
// after table is loaded
contentPanel.getElement().getStyle().setOverflow(Overflow.AUTO);
As a side note, you should also implement the panel inside <g:center> as a LayoutPanel instead of floated divs. It will give you a much more predictable layout:
<g:center>
<g:LayoutPanel styleName='{style.content}'>
<g:layer left="0" width="200px">
<g:SimplePanel styleName='{style.left}' ui:field="navigationPanel" />
</g:layer>
<g:layer right="0" left="200px">
<g:ScrollPanel styleName='{style.right}' ui:field='contentPanel' />
</g:layer>
</g:LayoutPanel>
</g:center>
You would also, obviously need to remove any box model related styles from .left and .right, like width and float.
I'm trying to embed a TabLayoutPanel inside a DockLayoutPanel but the tabs are not showing up :(
<ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
xmlns:g='urn:import:com.google.gwt.user.client.ui'>
<g:DockLayoutPanel unit='PX'>
<g:north size='200'>
<g:HTML>
<h1>
My Header
</h1>
</g:HTML>
</g:north>
<g:center>
<g:TabLayoutPanel barUnit='PX' barHeight='3'>
<g:tab>
<g:header size='7'>
<b>HTML</b>
header
</g:header>
<g:Label>able</g:Label>
</g:tab>
<g:tab>
<g:customHeader size='7'>
<g:Label>Custom header</g:Label>
</g:customHeader>
<g:Label>baker</g:Label>
</g:tab>
</g:TabLayoutPanel>
</g:center>
<g:west size='192'>
<g:HTML>
<ul>
<li>Sidebar</li>
<li>Sidebar</li>
<li>Sidebar</li>
</ul>
</g:HTML>
</g:west>
</g:DockLayoutPanel>
</ui:UiBinder>
If you're seeing nothing at all, make sure that the TabLayoutPanel either (a) has an explicit size, or (b) is ultimately attached to the RootLayoutPanel (see http://code.google.com/webtoolkit/doc/latest/DevGuideUiPanels.html#Resize for more details).
If the problem is a lack of styling on the tabs (i.e., you're just seeing raw text where the tabs should be), you'll need to add some styles (the CSS rules you'll need are described in TabLayoutPanel's javadoc). There are not yet any default styles for TabLayoutPanel, but we'll be adding some soon.
The example from the JavaDoc is somewhat misleading - the bar height of 3 will hide the tab headings and a height needs to be specified for the body. Use something like:
<g:TabLayoutPanel barUnit='PX' barHeight='25' height="200px" >
or
<ui:style>
.tab {
height: 200px;
}
<g:TabLayoutPanel barUnit='PX' barHeight='25' styleName="{style.tab}" >
Also, you can find a basic CSS style for TabLayoutPanel on comment #5 in the following issue:
http://code.google.com/p/google-web-toolkit/issues/detail?id=4429
I have been having the same issue using the new TabLayoutPanel too (the tabs doesn't show up even if it's the only thing on the page). I decided to back to using the (now deprecated) TabPanel instead. Try and see if that works instead:
Example code:
<g:TabPanel width="100%" height="100%" ui:field="gwtimeTabPanel">
<g:Tab>
<g:TabHTML>Tab title</g:TabHTML>
<g:FlowPanel>
<!-- tab contents goes here -->
</g:FlowPanel>
</g:Tab>
</g:TabPanel>
For the people who mainly use Java code to define the UI.
Explenation
You should set the size of the parentpanel of the TabLayoutPanel and of the TabLayoutPanel itself. For instance I had a VerticalPanel and a TabLayoutPanel, I added this TabLayoutPanel to the VerticalPanel (which makes it the parentpanel of TabLayoutPanel) like this:
veticalPanel.add(tabLayoutPanel);
RootPanel.get().add(verticalPanel);
which did nothing...
Answer
you should declare the size of your panels like this
//set size
vertialPanel.setSize("100%","100%");
tabLayoutPanel.setSize("100%","100%")
RootPanel.get().add(verticalPanel);
Perhaps I haven't been searching the right way but I cannot figure out for the life of me how to center an element using GWT Layout Panels.
I'm using UiBinder and I've tried all panels that implement HasVerticalAlignment (DockPanel, HorizontalPanel, VerticalPanel). None of them seem to have any impact from setting vertical alignment (or even horizontal). I've made sure they're taking 100% width and height, inspected the resulting DOM layout from my browser and nothing seems to be changed from those properties.
Pertinent UiBinder extract (with extra docklayout elements omitted):
<g:DockLayoutPanel>
<g:center>
<g:HorizontalPanel width="100%" height="100%" >
<g:FlexTable ui:field="homeData" />
</g:HorizontalPanel>
</g:center>
</g:DockLayoutPanel>
The quick and dirty fix I've figured out is to create my own "CenterPanel" widget which basically is a wrapper around a HTMLPanel with a HTML table with a valign="middle" cell. However, this basically feels like a throwback to the classical css-layout middle centering problems. Surely GWT has something to do this that I've completely overlooked?
Centering an item can be done with a cell element like this:
<g:HorizontalPanel width="100%" height="100%">
<g:cell horizontalAlignment="ALIGN_CENTER" verticalAlignment="ALIGN_MIDDLE">
<g:Label>Hello Center</g:Label>
</g:cell>
</g:HorizontalPanel>
Have you tried setting width less than 100% ... i feel the width of HorizontalPanel becomes 100% ... so it occupies whole DockLayoutPanel and thus the FlexTable might be getting left aligned.
You can use styleName attribute in your component. For Example:
<g:DockLayoutPanel>
<g:center>
<g:HorizontalPanel width="100%" height="100%" >
<g:FlexTable ui:field="homeData" styleName="verticalAlign"/>
</g:HorizontalPanel>
</g:center>
</g:DockLayoutPanel>
and have
.verticalAlign{
vertical-align: middle;
}
in your style.css