I have a question that might seem "basic" but I just cannot figure out how to do it...
I have a box and I'd like to change the borderColor. Till there, nothing special. Just a box.bordercolor = xxxxxx...
BUT, I'd like to have the top and bottom border with one color, and the left and right border with another color... And that's the part where I'm stuck.
Any tips? Suggestions?
Thanks for your help and time! ;)
Regards,
BS_C3
#Senz
Hi!
Unfortunately, I won't be able to share the code without making it "incomprehensible"...
But this is the idea... We have 2 main components: ArrowButton and Navigator.
ArrowButton is a hbox containing a label and an image (this image is the arrow tip and it changes depeding on the state of the ArrowButton).
Navigator is a hbox containing a series of ArrowButton. An ArrowButton overlaps the arrowButton on its right in order to create the pointed end of the button.
And then you just create a whole bunch of functionnalities around these components.
I hope this helps... Do not hesitate if you have some more questions =)
Regards.
I noticed you are asking about the Flex 3 SDK. Skins are a good approach. They have changed somewhat in Flex 4(for the better IMHO). If you are wanting to use the Flex Drawing API, then just extend the Box class into a custom class that would look something like this:
public class MultiColorBorderBox extends Box
{
// You could add getters/setters or constructor parameters to be able to change these values.
private var topColor:uint = 0xFF0000;
private var rightColor:uint = 0x00FF00;
private var bottomColor:uint = 0x0000FF;
private var leftColor:uint = 0xFF00FF;
private var borderWidth:Number = 20;
public function MultiColorBorderBox()
{
super();
}
override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
// This just ensures you dont have content under your border
this.setStyle("paddingLeft", borderWidth);
this.setStyle("paddingRight", borderWidth);
this.setStyle("paddingTop", borderWidth);
this.setStyle("paddingBottom", borderWidth);
var g:Graphics = this.graphics; // This creates a new Graphics object and sets it to the MultiColorBorderBox graphics object. Since Box (superclass) descends from a Sprite object, it has a graphics object automatically.
g.clear();
g.moveTo(0,0); // Moves the position to the top left corner
g.lineStyle(borderWidth, topColor); // Sets the line style with the width and color
g.lineTo(unscaledWidth, 0); // Draws the top border from top left to top right corners
g.lineStyle(borderWidth, rightColor); // Changes the line style
g.lineTo(unscaledWidth, unscaledHeight); // Draws the line from top right to bottom right
g.lineStyle(borderWidth, bottomColor); //Changes the bottom border style
g.lineTo(0, unscaledHeight); // Draws the line from bottom right to bottom left
g.lineStyle(borderWidth, leftColor); // Changes the border color
g.lineTo(0,0); // Closes the box by drawing from bottom left to top left
}
I'm pretty sure you're going to have to create a borderSkin to accomplish this. I believe these are created in an external program, such as Flash Professional; but more info is in the docs.
I don't think that Flex makes any distinction between top/bottom borders and left/right borders. Creating a skin would certainly be the nifty-slick way to do it. A programmatic way might be to use box.graphics to draw your border by hand. I'd start by trying to override the updateDisplayList() function to draw your border...
I finally did a pretty simple thing.
I guess I wasn't detailed enough regarding the specifications.
The actual aim was to create a navigator with arrow shaped buttons.
Each button had to be highlighted when it was selected. And this http://www.freeimagehosting.net/uploads/bcd0d762d7.jpg is how the navigator looked like.
Each button is actually an HBox containing a Box (with a label) and an Image (for the arrow tip), with a horizontalGap = 0.
I didn't think about adding a glowfilter to the button. So I was trying to just change the colors of the top and bottom part of the Box...
So, the glowfilter in the button worked pretty well.
Sorry for the lack of explanations about the context >_< And thanks for your answers!!
Regards.
Related
I'm trying to remove the down arrow from a combobox. All the solutions I have found just make the arrow disappear, for example this one.
Is there a way to remove completely the space where the arrow appears and fill the box just with the text of the selected choice?
If you want to completely elimnate the arrow & arrow button space, you can try with the below custom ComboBox.
The below code is setting the arrow button and arrow nodes size to 0 and asking to rerender the comboBox. The null check is to let this changes apply only once.
public class MyComboBox<T> extends ComboBox<T>{
Region arrowBtn ;
#Override
protected void layoutChildren() {
super.layoutChildren();
if(arrowBtn==null){
arrowBtn= (Region)lookup(".arrow-button");
arrowBtn.setMaxSize(0,0);
arrowBtn.setMinSize(0,0);
arrowBtn.setPadding(new Insets(0));
Region arrow= (Region)lookup(".arrow");
arrow.setMaxSize(0,0);
arrow.setMinSize(0,0);
arrow.setPadding(new Insets(0));
// Call again the super method to relayout with the new bounds.
super.layoutChildren();
}
}
}
UPDATE :
Based on the suggestion of #kleopatra, we can get the same behaviour using css as well (without the need to create a new class for ComboBox).
.combo-box .arrow-button,
.combo-box .arrow{
-fx-max-width:0px;
-fx-min-width:0px;
-fx-padding:0px;
}
The below image will tell you the difference of a normal combox box and this custom combo box. The left one is the normal comboBox, you can see the list cell when inspecting with ScenicView. The right one is the custom one. The list cell is completely occupied suppressing the arrow space.
int browserHeight=Window.getClientHeight();
int browserWidth=Window.getClientWidth();
dialog.setPopupPosition(browserWidth-dialog.getElement().getClientWidth(), browserHeight-dialog.getElement().getClientHeight());
dialog.show();
The above code will make the position starts from the very last pixel of the browser (ie bottom=0), which is not what i expect. I don't like css cos browser incompatible problem.
Also there a footer in my website (height=50px) if u can make the dialog to not to lay on the footer like the following pic
so, How to position the GWT dialog to the bottom right corner of the browser?
This is the right way
dialogBox.setPopupPositionAndShow(new PositionCallback(){
#Override
public void setPosition(int offsetWidth, int offsetHeight) {
// TODO Auto-generated method stub
dialogBox.setPopupPosition(parentDockLayoutPanel().getOffsetWidth()- dialogBox.getOffsetWidth(),
parentDockLayoutPanel().getOffsetHeight() - dialogBox.getOffsetHeight()-50);
}
});
It will be simple if we know the exact width & height of dialogbox. We also need to to know the parentPanel / parentLayoutPanel of dialogbox
This code will work but it is not the optimum code
dialogBox.setWidth("300px");
dialogBox.setHeight("300px");
dialogBox.setPopupPosition(parentLayoutPanel.getOffsetWidth()-300,parentLayoutPanel.getOffsetHeight()-300-50);
but how to know the width + height of dialogbox dynamically is another question
i want to add UIComponent inside a spite. here is the code:
private function make() : void {
var circle : Sprite = new Sprite();
circle.graphics.beginFill(0xFF0000, 0.2);
circle.graphics.drawCircle(0, 0, 20);
var button : Button = new Button();
button.label = "testing...";
var wrapper : UIComponent = new UIComponent();
circle.addChild( button );
wrapper.addChild( circle );
addChild( wrapper );
}
the problem is that button is added, but is not displayed. if i do reversed - add sprite to uicomponent - everything works fine, but this way it doesn't work. i tried to use invalidate functions for button etc... even tried making "circle" as UIMovieClip, but no luck - button is still invisible. also if i simply do "addChild( button );" - it is shown, what the... please help, what i am doing wrong? how can i add a button inside a sprite?
Short answer, you can't. What you CAN do is instead of using Sprite, you use UIComponent for your circle.
The reason for this is that UIComponent has A LOT of code that changes how it behaves, including how to add and layout children. You could essentially take the same code to a Sprite since UIComponent does extend it, however that would be VERY redundant. This works great for me:
private function make() : void {
var circle : UIComponent= new UIComponent();
circle.graphics.beginFill(0xFF0000, 0.2);
circle.graphics.drawCircle(0, 0, 20);
var button : Button = new Button();
button.label = "testing...";
var wrapper : UIComponent = new UIComponent();
circle.addChild( button );
wrapper.addChild( circle );
addChild( wrapper );
}
Unfortunately, in order to use Sprite the way you are trying to do it, you would have to extend Sprite and implement IUIComponent.
Taken from the Flex 3 Language Reference:
Note: While the child argument to the
method is specified as of type
DisplayObject, the argument must
implement the IUIComponent interface
to be added as a child of a container.
All Flex components implement this
interface.
Sprite does not implement IUIComponent, so you are experiencing a pretty typical issue. UIComponent's don't typically have speed issues when compared to Sprites, so I would recommend just drawing on your UIComponent.
As stated before, you /could/ extend Sprite to implement IUIComponent, but it's a pain.
Hope this helps!
I am subclassing QTabWidget to add a QTabBar, who's tabs stretch over the whole width of the tabBar. Therefore I am setting the expanding property to true. This doesn't seem to change anything about the behavior of the tabs.
Did anyone encounter the same problem? I use Qt 4.6 in combination with
TabWidget::TabWidget(QWidget *parent)
{
tabBar = new QTabBar(this);
tabBar->setIconSize(QSize(160,160));
tabBar->setExpanding(true);
setTabBar(tabBar);
}
EDIT: has been solved, here is how I implemented it, in case anyone is interested:
tabBar = new QTabBar(this);
tabBar->setExpanding(true);
layout = new QVBoxLayout(this);
setLayout(layout);
stackedLayout = new QStackedLayout();
layout->addWidget(tabBar);
layout->addLayout(stackedLayout);
connect(tabBar, SIGNAL(currentChanged(int)), stackedLayout, SLOT(setCurrentIndex(int)));
void MainWindow::addTab(QWidget *widget, const QIcon &icon, const QString &label) {
tabBar->addTab(icon, label);
stackedLayout->addWidget(widget);
}
From the QTabBar source code:
// ... Since we don't set
// a maximum size, tabs will EXPAND to fill up the empty space.
// Since tab widget is rather *ahem* strict about keeping the geometry of the
// tab bar to its absolute minimum, this won't bleed through, but will show up
// if you use tab bar on its own (a.k.a. not a bug, but a feature).
To get around this "feature", you can create your own tab widget using a QTabBar above a widget with a QStackedLayout.
5.2.0 onwards
QTabWidget::tab-bar {
min-width: 999999px;
}
It will work. No need to use any combination. You can use QTabWidget. Daniel ans is correct.
Building on #baysmith's answer, an easier way to force the QTabWidget to let the QTabBar expand, is to set a stylesheet on your QTabWidget that looks something like this:
QTabWidget::tab-bar {
width: 999999px;
}
Or another ridiculously large number. If your QTabWidget has the tabs going vertically instead of horizontally, use 'height' instead:
QTabWidget::tab-bar {
height: 999999px;
}
This seems to work fine for me, with Qt 5.0.1. The tabs expand to fill the space, each getting an equal portion. However, it seems like they intentionally leave enough empty space for one more tab, regardless. But the rest of the space is filled as desired. The empty space might be reserved for the tear/scroll buttons, incase too many tabs get added - but I'm not sure.
Here is the problem. I've created custom RectangularBorder and set it as border skin for TitleWindow. After this manipulation inner content of window is starting at 0,0 point of it. How could I set offset of it?
Just setting top padding does not work because scroll bar still begins from the top of the window after this manipulation.
There are lots of problems with trying to skin panels in Flex 3, and TitleWindow inherits from Panel.
This is the best explanation I've seen. (I'm not the same Glenn referenced in the italics :)).
For programmatic skin it went out pretty simple. One should override function get borderMetrics to do so:
public override function get borderMetrics():EdgeMetrics
{
var borderThickness:Number = getStyle("borderThickness");
var cornerRadius:Number = getStyle("cornerRadius");
var headerHeight:Number = getStyle("headerHeight");
return new EdgeMetrics(
borderThickness,
borderThickness + headerHeight,
borderThickness,
borderThickness);
}
try to use padding-top , padding-left etc as a style for your TitleWindow