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add Flip horizontal #93

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add Flip horizontal #93

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c328353
add flip horizontal
mas0061 Apr 22, 2015
cdacabd
test html
mas0061 Apr 22, 2015
aedc399
support IE
mas0061 Apr 23, 2015
1249b87
can apply flipH & rotate at the same time
mas0061 May 12, 2015
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33 changes: 33 additions & 0 deletions jquery.iviewer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -261,6 +261,7 @@ $.widget( "ui.iviewer", $.ui.mouse, {
this.zoom_object = {}; //object to show zoom status

this._angle = 0;
this._flipH = -1;

this.current_zoom = this.options.zoom;

Expand Down Expand Up @@ -756,6 +757,13 @@ $.widget( "ui.iviewer", $.ui.mouse, {
this._trigger('angle', 0, { angle: this.img_object.angle() });
},

/**
* Flip horizontal
*/
flip_h: function() {
this.img_object.flip_h();
},

/**
* finds closest multiplier rate for value
* basing on zoom_base and zoom_delta values from settings
Expand Down Expand Up @@ -1004,6 +1012,13 @@ $.ui.iviewer.ImageObject = function(do_anim) {
this.orig_height(h);
this.display_width(w);
this.display_height(h);

var userAgent = window.navigator.userAgent.toLowerCase();
if (userAgent.indexOf('msie') != -1) {
this._flipH = 1;
} else {
this._flipH = -1;
}
};

/**
Expand Down Expand Up @@ -1153,9 +1168,27 @@ $.ui.iviewer.ImageObject = function(do_anim) {
marginTop: ieTransforms[deg].marginTop * this.display_diff() / 2
});
}

// reset flip
this._flipH = -1;
},
function() { return this._angle; });

this.flip_h = function() {
var img = this._img;
var curAngle = this._angle;
var cssVal = 'scaleX(' + this._flipH + ')';

jQuery.each(['', 'Webkit', 'Moz', 'O', 'ms'], function(i, prefix) {
img.css(prefix + 'Transform', cssVal + ' rotate(' + curAngle + 'deg)');
});

img.css('filter', 'FlipH');
img.css('msFilter', 'FlipH');

this._flipH = -this._flipH;
};

/**
* Map point in the container coordinates to the point in image coordinates.
* You will get coordinates of point on image with respect to rotation,
Expand Down
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