For some reason I am having a problem setting the foreground of a TextBlock.
I've tried:
new SolidColorBrush(Windows.UI.Color); but there is no Color.White or any colors for that matter.
I can't find a Brushes.Color class
I'm working on a Windows Phone 8.1 app.
It must be the Colors class (but not Color). Example:
var textblocks = new TextBlock() { Height = box_height, Width = box_width, Text = "Hello", FontSize = 30, Foreground = new SolidColorBrush(Colors.Black) };
Related
I have a button as part of a Xamarin Forms custom renderer. I can style the button as I wish on iOS and Android in code without an issue and for the most part, can do the same on Windows Phone 8.
I'm having a problem though with including an image on a button with text next to it and altering the border on the button so it is rounded. I've found plenty of examples using XAML, but not in pure C#.
Currently, the custom renderer on Windows Phone looks like this
[assembly: ExportRenderer(typeof(NewButton), typeof(NewButtonRenderer))]
namespace WinPhone
{
class NewButtonRenderer : ButtonRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.Button> e)
{
base.OnElementChanged(e);
if (Control != null)
{
Control.ApplyTemplate();
var border = new Border
{
CornerRadius = new System.Windows.CornerRadius(10),
};
Control.Foreground = new SolidColorBrush(Colors.White);
Control.Background = new SolidColorBrush(System.Windows.Media.Color.FromArgb(255, 130, 186, 132));
Control.BorderBrush = new SolidColorBrush(System.Windows.Media.Color.FromArgb(255,45,176,51)) ;
Control.BorderThickness = new System.Windows.Thickness(0.8);
}
}
}
}
I have a Border set up, but can't find a way to add it (and secondary to this, if I have the background, border brush and border thickness in the Border object, does it have the same effect as applying directly to the control?), nor a way of creating an image button with an image in my Images directory.
Is what I'm trying to do correct or am I missing a piece of the jigsaw? I'm doing this in pure C# for a specific reason.
I have textInput on stage, it's not the component; but rather a textField which is set to behave as inputText. I also have a button on stage to bold the selected portion of the text in the inputField.
Here's the code, which works perfectly fine:
var formatDefBold: TextFormat = new TextFormat();
formatDefBold.bold = false;
var formatBold: TextFormat = new TextFormat();
formatBold.bold = true;
boldBtn.addEventListener(MouseEvent.CLICK, makeBold);
function makeBold(event: MouseEvent):void
{
var sbi:Number = myInputField.selectionBeginIndex;
var sei:Number = myInputField.selectionEndIndex;
if (sbi != sei)
{
var section:TextFormat = myInputField.getTextFormat(sbi,sei);
if (section.bold == false)
{
myInputField.setTextFormat(formatBold, sbi, sei);
}
else
{
myInputField.setTextFormat(formatDefBold, sbi, sei);
}
stage.focus = this[selectedTextField]; // highlight the selected text again.
}
}
PROBLEM:
When I rotate the textInput, the text disappears. If I embed the font and choose another anti-aliasing method like "Anti-Alias for animation", the rotated textInput displays the text fine, but the makeBold function doesn't work.
I've tried different fonts. Sans, Arial, which I embedded all it's styles (Bold, Italic, Bold-Italic). nothing!
I've tried placing the textInput inside a movieClip and rotate the movieClip instead. doesn't work.
I've also tried setting the embedFonts parameter for the textInput too, not sure if I did it correctly
myInputField.embedFonts = true;
this time the text disappears even when the textField is not rotated.
I'm really stuck and can't think of anything else to make the bold function work with a rotated textInput.
Embedding method
For any operations like rotation applied to a text field, you should first embed the text font.
myText.text = "rotation with embed font";
myText.rotation = 10;
Your text field 'myText' is physically put on the scene. When you click on it, in the window 'Properties', do that:
anti-alias (Anti-alias for animation)
font embed
To embed the font, click on 'embed' button > window 'Font Embedding' > 'Character ranges' > select: 'Uppercase', 'Lowercase', 'Numerals', 'Punctuation'. (don't click on 'All')
3D method
You can also rotate a dynamic text field without embedding fonts using the 3D methods available in Flash Player 10.
var myTextField:TextField = new TextField();
this.addChild(myTextField);
var fo:TextFormat = new TextFormat("Arial", 11, 0xFF0000);
myTextField.defaultTextFormat = fo;
myTextField.text = "3D rotation";
myTextField.rotationZ = 45;
In your case...
In your case, the following code works perfectly (you just have to put a button named 'boldBtn' on your scene):
var myInputField:TextField = new TextField();
this.addChild(myInputField);
var fo:TextFormat = new TextFormat("Verdana", 12, 0x000000, false);
myInputField.defaultTextFormat = fo;
myInputField.text = "3D rotation";
myInputField.rotationZ = 45;
boldBtn.addEventListener(MouseEvent.CLICK, makeBold);
function makeBold(event:MouseEvent):void
{
fo.bold = !fo.bold;
myInputField.setTextFormat(fo);
}
I set the anti-aliasing to it's default value which is "use device fonts" and used rotationZ to rotate the text field. and it worked!
using rotation (not rotationZ) with default anti-aliasing doesn't show the text.
and using rotation (not rotationZ) with anti-aliasing makes the bold function not work.
so this is solved with just adding this line of code:
myInputField.rotationZ = 45;
I need the ability to be able to create an image of size 400x400 on the fly in a Windows Phone app, which will have a color of ARGB values that a user selects from a color picker. For instance, the user will click on a HyperlinkButton to take them to a ColorPickerPage and then will select a color, and I will retrieve that value and create the image from it, and display this image back on the MainPage. How might something like this be accomplished one I have retrieved the ARGB value from the user? I have not had luck finding any resources on this particular issue.
EDIT**
I came across http://www.geekchamp.com/forums/windows-phone-development/how-to-correctly-save-uicontrol-with-opacity-to-writeablebitmap which creates a rectangle on the screen and then saves to WriteableBitmap, but how might I skip that step and just save the Rectangle to WriteableBitmap? Note, I only have a single rectangle that I Fill with a custom Color.
You can save any UI element as an image using the code below. Here rect is the name of the rectangle in your XAML. If the rectangle isn't present in the UI then simply create one using C#. I have added the code to create a rectangle using C# and commented it.
public void saveimage(int height, int width, String filename)
{
//Rectangle rect = new Rectangle();
//rect.Height = 40;
//rect.Width = 40;
//rect.Fill = new SolidColorBrush(System.Windows.Media.Colors.Cyan);
var bmp = new WriteableBitmap(width, height);
bmp.Render(rect, null);
bmp.Invalidate();
var isf = IsolatedStorageFile.GetUserStoreForApplication();
if (!isf.FileExists(filename))
{
using (var stream = isf.OpenFile(filename, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.ReadWrite))
{
bmp.SaveJpeg(stream, width, height, 0, 100);
stream.Close();
}
}
}
Did you try using the Drawing Class.
here's the reference from msdn.
These are some samples: System.Drawing and System.Drawing.Imaging alternatives for Windows Phone
http://code.msdn.microsoft.com/windowsapps/Multi-Touch-Drawing-744a0b48
Hope it helps!
I am dynamically creating a canvas, and I need a background image within the canvas. The canvas is created as it accepts drag drop but the background image does not show up.
The trigger for the canvas is:
buttonNew.addEventListener("click",addCanvas);
The canvas code is:
private function addCanvas(oEvent:Event):void
{
caNew = new Canvas();
caNew.id = "cart"
caNew.name = "Shopping Cart";
caNew.x = 100;
caNew.y = 450;
caNew.width = 200;
caNew.height = 146;
caNew.setStyle("backgroundImage",cart_icon);
//caNew.setStyle("backgroundColor","#98AEEF");
this.addChild(caNew);
caNew.addEventListener(DragEvent.DRAG_ENTER, dragAcceptShop);
caNew.addEventListener(DragEvent.DRAG_DROP, dragDropShop);
laNew = new Label();
laNew.id = "contain"
laNew.text = "Shopping Cart";
laNew.x = 100;
laNew.y = 450;
laNew.width = 120;
laNew.height = 50;
this.addChild(laNew);
}
What am I doing wrong? As if I use backgroundImage it works fine and only the colour works.
You didn't specify which version of the Flex SDK you were using, but backgroundImage is not an available style in the Spark theme. Spark is the default theme for Flex 4 (and later) projects. Check out all available sytles.
One option is to add an Image component as the first child on the canvas.
I having some trouble with TextFields and caracter embedding. As I have understood, the way to embed character in Flash, is to have a TextField in a movieclip that is exported to actionscript via some classname. Then have the TextField embed the characters.
But when i try to use that TextField in my project, I cannot auto resize the field any longer!? Is there a better way to embed charactes? or am I missing some unknow attribute? (and yes i have tried TextField.autoSize = "left" (or "center" or "right")).
The TextField is configured like this in Flash CS4:
Properties:
http://screencast.com/t/0VB6KnNO6G
Library implementation:
http://screencast.com/t/w3yQLqit0veI
And I embed the MovieClip containing the TextField like this:
protected var tabname:MovieClip = new Text(); // The property on the object
Adding the text and setting its Settings:
var txt:TextField = tabname.txt;
if( !contains(tabname) )
{
addChild(tabname);
var format:TextFormat = new TextFormat();
format.bold = true;
format.font = "Arial";
format.size = 12;
format.align = "left";
var dropShadow = new DropShadowFilter(0);
dropShadow.color = 0xFFFFFF;
dropShadow.strength = 2;
dropShadow.blurX = dropShadow.blurY = 5;
dropShadow.alpha = .7;
txt.type = TextFieldType.DYNAMIC;
txt.multiline = tabname.wordWrap = false;
txt.autoSize = TextFieldAutoSize.LEFT;
txt.defaultTextFormat = format;
txt.filters = [dropShadow];
txt.mouseEnabled = false;
txt.x = 10;
}
txt.text = value;
txt.y = Math.ceil((tabmask.height - txt.height) /2);
To embed fonts, don't rely on wrapping them in MovieClips in the library. They should be embedded correctly as Fonts. I have included some basic steps below for embedding fonts, then an example for your particular situation:
1 - Make the textfield Dynamic and click the Embed.. button
2 - Name the font with something meaningful (like the fonts name) and tick the character sets you will be using (usually I select caps, lowercase, numbers and punctuation). Also note the Style is 'Bold', you will need to embed a font set for each style. So if you want to use Bold and Regular, you need to embed 2 fonts.
3 - If you plan on adding textfields dynamically through ActionScript, goto the ActionScript tab and add a class for it (again, use a meaningful name)
4 - Finally click ok, and away you go. I have setup an example, using these steps, and the auto size method, you can see the results below
In Flash, you can click the [Embed...] button below the TextField's character properties. In the window that you get then, you can specify which characters you want embedded in your textfield.
There's a lot more to say about font embedding but this is the simple story. Flash CS5 added TLF TextFields but I don't think you were referring to those, right?
The autoSize property really has nothing to do with font embedding but I guess your TextField is not Dynamic when you cannot auto resize it?
Are you using CS5 or CS4 or earlier by the way?