Image input label

Introduction¶

A container with a canvas icon, text, and background. Click icon to popup a (image) file chooser dialog, display selected image on canvas.

Author: Rex
Game object

Live demos¶

Save texture

Usage¶

Sample code

Install plugin¶

Load minify file¶

Load plugin (minify file) in preload stage

scene.load.scenePlugin('rexuiplugin', 'https://raw.githubusercontent.com/rexrainbow/phaser3-rex-notes/master/dist/rexuiplugin.min.js', 'rexUI', 'rexUI');

Add image-input label object

var imageInputLabel = scene.rexUI.add.imageInputLabel(config);

Import plugin¶

Install rex plugins from npm
```
npm i phaser3-rex-plugins
```

Install plugin in configuration of game

import UIPlugin from 'phaser3-rex-plugins/templates/ui/ui-plugin.js';
var config = {
    // ...
    plugins: {
        scene: [{
            key: 'rexUI',
            plugin: UIPlugin,
            mapping: 'rexUI'
        },
        // ...
        ]
    }
    // ...
};
var game = new Phaser.Game(config);

Add image-input label object

var imageInputLabel = scene.rexUI.add.imageInputLabel(config);

Import class¶

Install rex plugins from npm
```
npm i phaser3-rex-plugins
```

Import class

import { ImageInputLabel } from 'phaser3-rex-plugins/templates/ui/ui-components.js';

Add image-input label object

var imageInputLabel = new ImageInputLabel(scene, config);
scene.add.existing(imageInputLabel);

Add imageInputLabel object¶

var imageInputLabel = scene.rexUI.add.imageInputLabel({
    // x: 0,
    // y: 0,
    // anchor: undefined,
    // width: undefined,
    // height: undefined,

    orientation: 0,
    // rtl: false,

    background: backgroundGameObject,

    canvas: {
        // width: 128, 
        // height: 128,
        // fill: undefined,

        // key: undefined, 
        // frame: undefined,        
    },

    // scaleUpIcon: false,

    iconBackground: iconBackgroundGameObject,    
    // squareFitIcon: false,
    // iconSize: undefined, iconWidth: undefined, iconHeight: undefined,

    text: textGameObject,
    expandTextWidth: false,
    expandTextHeight: false,

    action: actionGameObject,
    // actionMask: false,
    // squareFitAction: false,
    // actionSize: undefined, actionWidth: undefined, actionHeight: undefined,

    align: undefined,

    space: {
        left: 0,
        right: 0,
        top: 0,
        bottom: 0,

        icon: 0, 
        iconTop: 0, iconBottom: 0, iconLeft: 0, iconRight: 0,

        text: 0,
        actionTop: 0, actionBottom: 0, actionLeft: 0, actionRight: 0,
    },

    // name: '',
    // draggable: false,
    // sizerEvents: false,
    // enableLayer: false,

    // clickTarget: undefined,
    // domButton: true,
});

x, y : Position of this object, it is valid when this object is the top object.
anchor : See anchor.
- left, right, centerX, x, top, bottom, centerY, y : Position based on visible window, which composed of
  - Percentage of visible width/height : 'p%', p: 0 ~ 100.
    - 'left'(=0%), 'center'(=50%), 'right'(=100%)
    - 'top'(=0%), 'center'(=50%), 'bottom'(=100%)
  - Offset : '+n', or '-n'.
- width, height : Set size (invoke onResizeCallback) based on visible window, which composed of
  - Percentage of visible width/height : 'p%', p: 0 ~ 100.
  - Padding : '+n', or '-n'.
- onResizeCallback : A default resize callback will be assigned interanlly.
width, height : Minimum width, minimum height.
orientation :
- 'left-to-right', 'horizontal','h', 'x', or 0 : Put icon at left side, and text at right side.
- 'top-to-bottom', 'vertical','v', 'y', or 1 : Put icon at top side, and text at bottom side.
rtl :
- true : Layout children from right to left.
- false : Layout children from left to right. Default behavior.
background : Game object of background, optional. This background game object will be resized to fit the size of imageInputLabel.
canvas : Parameters of creating canvas game object.
- canvas.width, canvas.height, canvas.fill : Create canvas with size (canvas.width x canvas.height), filling by color canvas.fill.
- canvas.key, canvas.frame : Create canvas then paste texture canvas.key, canvas.frame.
iconBackground : Game object of iconBackground, optional.
- icon game object will be created internally by imageBox with canvas.
squareFitIcon :
- true : Resize icon size to square to fit imageInputLabel height/width.
  - Can't work wit expandTextWidth: true
- false : Ignore this feature. Default behavior.
iconSize : Set display size of icon game object to iconSizexiconSize
iconWidth : Set display width of icon game object to iconWidth.
- If iconHeight is undefined, set scaleY of icon game object to scaleX of icon game object, to keep size ratio.
iconHeight : Set display height of icon game object to iconHeight.
- If iconWidth is undefined, set scaleX of icon game object to scaleY of icon game object, to keep size ratio.
scaleUpIcon :
- true : Scale-up canvas game object if its size is smaller than icon (imageBox).
- false : Keep current size when its size is smaller than icon (imageBox). Default behavior.
text : Game object of text, optional.
expandTextWidth :
- false : Keep width of text to original size. Default behavior.
- true : Expand width of text object. Will set display width by default.
  - Must set to true if using scene.rexUI.wrapExpandText method with any text game object.
  - Can't work with squareFitIcon: true.
expandTextHeight : Set true to expand height of text object.
action : Game object of action icon, optional.
actionMask : Set true to add a circle mask on action icon game object.
- Phaser 3 engine does not support nested mask, uses circle mask image instead.
squareFitAction :
- true : Resize action icon size to square to fit imageInputLabel height/width.
- false : Ignore this feature. Default behavior.
actionSize : Set display size of action game object to actionSizexactionSize
actionWidth : Set display width of action game object to actionWidth.
- If actionHeight is undefined, set scaleY of action game object to scaleX of action game object, to keep size ratio.
actionHeight : Set display height of action game object to actionHeight.
- If actionWidth is undefined, set scaleX of action game object to scaleY of action game object, to keep size ratio.
align : Alignment of icon, text, action game objects.
- undefined, or 'left', or 'top' : Align game objects at left, or top.
- 'center' : Align game objects at center.
- 'right', or 'bottom' : Align game objects at right, or bottom.
space : Pads spaces.
- space.left, space.right, space.top, space.bottom : Space of bounds.
- space.icon : Space between icon game object and text game object.
- space.iconTop, space.iconBottom, space.iconLeft, space.iconRight : Space around icon game object.
- space.text : Space between text game object and action icon game object.
- space.actionTop, space.actionBottom, space.actionLeft, space.actionRight : Space around action icon game object.
name : Set name of this game object.
draggable : Set true to drag top-most object.
sizerEvents : Set true to fire sizer events. Default value is false.
enableLayer :
- false : Add child game objects into scene's display list. Default behavior.
- true : Add child game objects into an internal layer game object. See also.
clickTarget : Click target to open file chooser dialog
- A string, 'icon', 'text', 'action', 'background' : Click icon, text, action, background game object to open file chooser dialog.
- undefined : Click this ImageInputLabel game object to open file chooser dialog. Default behavior.
- null, false : No clickTarget. Open file chooser dialog manually under a touch event.
domButton :
- true : Put DOM buttom above clickTarget, to receive click event.
- false : Add click event at clickTarget.
  - This mode won't work at ios

Expand size of text¶

Expand width/height of text when expandTextWidth/expandTextHeight is true

To resize text object, text object should have resize method. For example

class MyText extends Phaser.GameObjects.Text {
    constructor(scene, x, y, text, style) {
        super(scene, x, y, text, style);
        scene.add.existing(this);
    }
    resize(width, height) {
        this.setFixedSize(width, height);
        return this;
    }
}

Or uses bbcode text object, tag text object, canvasInput object.

Custom class¶

Define class

class MyLabel extends RexPlugins.UI.ImageInputLabel {
    constructor(scene, config) {
        super(scene, config);
        // ...
        scene.add.existing(this);
    }
    // ...
}

Create instance

var imageInputLabel = new MyLabel(scene, config);

Layout children¶

Arrange position of all elements.

imageInputLabel.layout();

Open file chooser dialog¶

Failure

This method can't run at ios.

Note

Open a file chooser dialog under any touch event. i.e. User can't open file chooser dialog directly.

imageInputLabel.openPromise()
    .then(function(file){
    })

file : File object

imageInputLabel.open()

Enable clicking-open¶

Enable

imageInputLabel.setClickOpenEnable();
// imageInputLabel.setClickOpenEnable(true);

Disable

imageInputLabel.setClickOpenEnable(false)

Save texture¶

Save image on canvas into texture manager.

imageInputLabel.saveTexture(key);

Events¶

Select file

imageInputLabel.on('select', function(file, imageInputLabel) {

})

file : File object

Get element¶

Get element

Background game object

var background = imageInputLabel.getElement('background');

Canvas game object (a canvas game object created internally)
```
var canvas = imageInputLabel.getElement('canvas');
```

Icon background game object

var iconBackground = imageInputLabel.getElement('iconBackground');

Icon game object (an imageBox game object created internally)
```
var imageBox = imageInputLabel.getElement('icon');
```

Text game object

var textObject = imageInputLabel.getElement('text');

Action icon game object

var action = imageInputLabel.getElement('action');

File chooser game object, if domButton is set to true

var fileChooser = imageInputLabel.getElement('fileChooser');

Get by name

var gameObject = imageInputLabel.getElement('#' + name);
// var gameObject = imageInputLabel.getElement('#' + name, recursive);

or

var gameObject = imageInputLabel.getByName(name);
// var gameObject = imageInputLabel.getByName(name, recursive);

recursive : Set true to search all children recursively.

Other properties¶

See label), sizer object, base sizer object, container-lite.