How to make div rotatable instead of canvas using fabric.js? What's needed to update in fabric.js to accomplish this requirement?
It would be fine if canvas placed inside div to render image but instead of canvas whole div need to be rotated.
It's not the job of Fabric.js to rotate (or really in any way manipulate) regular HTML elements.
You can use CSS3 styles to rotate the div which contains the canvas:
#myCanvasWrapperDiv
{
transform: rotate(30deg);
-ms-transform: rotate(30deg); /* IE 9 */
-webkit-transform: rotate(30deg); /* Safari and Chrome */
-o-transform: rotate(30deg); /* Opera */
-moz-transform: rotate(30deg); /* Firefox */
}
If you want the user to be able to rotate this div, you'll have to give them a way to do it. That could be as simple as a text input with a button or an onchange event handler, or complex, like a rotating handle. There may be a jQuery plugin to make elements "rotatable", similar to drag-and-drop plugins.
Related
I'm trying to create an svg where when you hover over one element in the image it triggers different animations on other parts of the image.
Example here: https://codepen.io/SHINZOC/pen/GRgXeey
Looking to have the pink rectangle disappear when hovering over while also having each square rotate at different angles. I can get one square to rotate but the others won't for some reason. Any help would be much appreciated!!
.pink_rectangle { transition: .3s;}
.pink_rectangle:hover {opacity: 0;}
#pink_rectangle:hover + #blue_square {
transform: rotate(45deg);
transform-origin: center center;
transform-box:fill-box;
}
#pink_rectangle:hover + #yellow_square {
transform: rotate(35deg);
transform-origin: center center;
transform-box:fill-box;
}
#pink_rectangle:hover + #orange_square {
transform: rotate(15deg);
transform-origin: center center;
transform-box:fill-box;
}
It is not yet possible to do what you ask with plain css you would need to use addEventListener("mouseover", function()); in javascript to make it work.
It doesn't work because CSS can't affect other css classes that are not contained within it.
If you don't know how to use addEventListener read a bit of this.
Is it possible to add a before element in CSS like this:
ul {
li:before {
content: url('../icons/fancy-symbol.svg');
}
}
and have access to the svg's objects (e.g. a specific line or rectangle) and properties (e.g. the stroke-width, strike and fill color)?
Or is there a workaround for these kind of situations?
The use case is to color some lines on hover and animate the svg on click.
You can specify a fragment on the SVG URL, like ../icons/fancy-symbol.svg#red, then have CSS inside the file react to that:
<style>
#red:target ~ .some-element-here {
fill: red;
}
</style>
This won't let you specify properties dynamically, but it can be useful for interaction states, especially with a preprocessor.
Alternatively, if the SVG file is small enough, you can use preprocessors to change properties in a Data URI, like with sass-svg, or manually:
.li:before {
content: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'
fill='#{$color}'%3E...");
}
(By the way, it might be easier to use ul { list-style-image: url(...) } instead of pseudo-elements.)
I am struggling to force Masonry to properly position the elements of the boostrap's full width grid.
As you will see home page is using the container with fixed width of the elements and everything is working as expected. But on the other hand, news page is using the full width fluid system and for some reason ,,blocks" on the news page won't fit the window.
Here is my call for masonry:
self.$("#masonry").masonry({
itemSelector: '.parallax',
isAnimated: !Modernizr.csstransitions,
columnWidth: function( containerWidth ) {
return containerWidth / 6;
});
And here is an example link http://wheniamplaying.com/kitchenV3/en/home
Is it possible to use masonry in this scenario?
I have a TextArea() and would like to hide the vertical/horizontal scroll bars. I see that the control seems to have a built in scroll-pane that shows as needed.
TextArea numberPane = new TextArea();
numberPane.setEditable(false);
numberPane.setMaxWidth( 75 );
// Set the characteristics of our line number pane
numberPane.setId( "line-number-pane" );
In my CSS file I have the follow settings.
#line-number-pane
{
-fx-text-fill: white;
-fx-background-color: black;
-fx-font: 12px "Courier New";
-fx-font-family: "Courier New";
-fx-font-weight: bold;
}
#line-number-pane .scroll-pane
{
-fx-hbar-policy : never;
-fx-vbar-policy : never;
}
As expected the text area font/color/size works just fine. However, the scroll-pane policy doesn't seem to work.
Should I be able to hide the scroll bars via the CSS file or is there some code that will do the trick.
Thanks.
From How can I hide the scroll bar in TextArea?:
Remove Horizontal Scrollbar
textArea.setWrapText(true);
Remove Vertical Scrollbar
ScrollBar scrollBarv = (ScrollBar)ta.lookup(".scroll-bar:vertical");
scrollBarv.setDisable(true);
CSS
.text-area .scroll-bar:vertical:disabled {
-fx-opacity: 0;
}
I just did it very simply using a StyleSheet:
CSS
.text-area .scroll-bar:vertical {
-fx-pref-width: 1;
-fx-opacity: 0;
}
.text-area .scroll-bar:horizontal {
-fx-pref-height: 1;
-fx-opacity: 0;
}
No need for all that whacky code.
I observed code of TextAreaSkin class, and found, that a
void layoutChildren(x, y, w, h) method, which is called "during the layout pass of the scenegraph" and de facto, each time, when something happens with a control, contains a code, which changes hbarPolicy and vbarPolicy between AS_NEEDED and NEVER, according to the current state of control.
So, looks like, there is no chance to do somethign with it, using a css.
Try to just make scrollbars invisible. But, as I see code of ScrollPaneSkin, scrollBars are created once, but their visibility state seems to change during the control is working, so, instead of using setVisible(false) (which will be ignored in the nearest layout), try to use a setOpacity(0.0). (I'm not sure, it will work, but it worth to try).
Also, instead of CSS using, you can apply a recursive search of scrollBars in a control structure, using a Parent.getChildrenUnmodifiable() method, and make them invisible manually.
My client is asking me to reduce size of current website for desktop browsers by 30%.
is there a css or meta tag to do it like viewport meta tag on a mobile browser?
Hmmm... I know this is an old question, but there is a MUCH better way to go about this: use the CSS scale() transform function on the <html> tag to scale EVERYTHING inside. Check out this jsFiddle: http://jsfiddle.net/mike_marcacci/6fMnH/
The magic is all here:
html {
transform: scale(.5);
-webkit-transform: scale(.5);
-moz-transform: scale(.5);
-ms-transform: scale(.5);
-o-transform: scale(.5);
width: 200%;
height: 200%;
margin: -50% -50%;
}
You can look at the css screen media type.
It is:
Intended primarily for color computer screens.
You can use it this way:
#media screen {
body { font-size: 70% }
}
There is also a handheld media type, primarily:
Intended for handheld devices (typically small screen, limited bandwidth).
However, you will need to test the different devices and desktops your client is focusing on in order to determine how using these media types will effect the user experience.
Odes is right.
#media screen {
body { font-size: 70% }
}
But to make this really work well, you must use ems instead of px everywhere. That goes for margin and padding as well as width and height of all elements.
A good way to do this is to use SASS. Just create your own sass function to convert your px measurements into ems on the fly. Something like this will do:
#function em($px, $context: 16, $basesize: 16) {
#return (($px/$basesize)/($context/16))+em;
}
Which then gets used in your CSS like so:
div { font-size:em(12); width: em(200,12); }
So, if the body font size was set to 100%, then the font size would be equivalent to 12px and the width of the div would be 200px wide.
Here code for proportional scale and positioning, wnen using "transform: scale"
CSS
html,body
{
width: 100%;
height: 100%;
margin:0;
padding:0;
}
html
{
position:absolute;
}
JS
var scale = 1;
$('html').css('transform','scale('+scale+')');
var windowWidth = $(window).width();
$('body').append(windowWidth);
$('body').append(' ' + windowWidth*scale );
//$('html').width(windowWidth*scale);
var width = (100*(1/scale));
var left = -(width*(1-scale))/2;
var height = (100*(1/scale));
var top = -(height*(1-scale))/2;
$('html').css('top', top+'%');
$('html').css('left', left+'%');
$('html').width(width+'%');
$('html').height(height+'%');
You can enable the meta viewport tag on desktop with JS. First you should derive the setting (width) from the meta tag:
var viewportcontent = $( "#myviewport" ).attr('content');
var viewportcontents = viewportcontent.split(",");
//if it starts with 'width='
for (var i = 0; i < viewportcontents.length; i++) {
if(viewportcontents[i].lastIndexOf('width=', 0) === 0) {
var wspec = viewportcontents[i].substring(6);
}
}
Then you need a little JS and the solution of Mike to get this working solution: http://codepen.io/anon/pen/GqoeYJ. Note that this example forces the width to be 1200 pixels, but initial-scale: 0.7 could be implemented in the same way.