beginnings of the icon cropper tool

git-svn-id: https://code.elgg.org/elgg/trunk@1064 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 355 insertions, 0 deletions

diff --git a/mod/profile/views/default/js/jquery.imgareaselect-0.4.2.js b/mod/profile/views/default/js/jquery.imgareaselect-0.4.2.js
new file mode 100644
index 000000000..637332d07
--- /dev/null
+++ b/mod/profile/views/default/js/jquery.imgareaselect-0.4.2.js
@@ -0,0 +1,355 @@
+/*
+ * imgAreaSelect jQuery plugin
+ * version 0.4.2
+ *
+ * Copyright (c) 2008 Michal Wojciechowski (odyniec.net)
+ *
+ * Dual licensed under the MIT (MIT-LICENSE.txt) 
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://odyniec.net/projects/imgareaselect/
+ *
+ */
+
+jQuery.imgAreaSelect = function (img, options) {
+    var $area = jQuery('<div></div>'),
+        $border1 = jQuery('<div></div>'),
+        $border2 = jQuery('<div></div>'),
+        $outLeft = jQuery('<div></div>'),
+        $outTop = jQuery('<div></div>'),
+        $outRight = jQuery('<div></div>'),
+        $outBottom = jQuery('<div></div>'),
+        imgOfs, imgWidth, imgHeight, zIndex = 0, fixed = false, $p,
+        startX, startY, moveX, moveY,
+        resizeMargin = 10, resize = [ ], V = 0, H = 1,
+        d, aspectRatio,
+        x1, x2, y1, y2, x, y,
+        selection = { x1: 0, y1: 0, x2: 0, y2: 0, width: 0, height: 0 };
+
+    var $a = $area.add($border1).add($border2);
+    var $o = $outLeft.add($outTop).add($outRight).add($outBottom);
+
+    function update()
+    {
+        $a.css({
+            left: (selection.x1 + imgOfs.left) + 'px',
+            top: (selection.y1 + imgOfs.top) + 'px',
+            width: Math.max(selection.width - options.borderWidth * 2, 0) + 'px',
+            height: Math.max(selection.height - options.borderWidth * 2, 0) + 'px'
+        });
+        $outLeft.css({ left: imgOfs.left + 'px', top: imgOfs.top + 'px',
+            width: selection.x1 + 'px', height: imgHeight + 'px' });
+        $outTop.css({ left: imgOfs.left + selection.x1 + 'px', top: imgOfs.top + 'px',
+            width: selection.width + 'px', height: selection.y1 + 'px' });
+        $outRight.css({ left: imgOfs.left + selection.x2 + 'px', top: imgOfs.top + 'px',
+            width: imgWidth - selection.x2 + 'px', height: imgHeight + 'px' });
+        $outBottom.css({ left: imgOfs.left + selection.x1 + 'px', top: imgOfs.top + selection.y2 + 'px',
+            width: selection.width + 'px', height: imgHeight - selection.y2 + 'px' });
+    }
+
+    function areaMouseMove(event)
+    {
+        x = event.pageX - selection.x1 - imgOfs.left;
+        y = event.pageY - selection.y1 - imgOfs.top;
+
+        resize = [ ];
+
+        if (options.resizable) {
+            if (y <= resizeMargin)
+                resize[V] = 'n';
+            else if (y >= selection.height - resizeMargin)
+                resize[V] = 's';
+            if (x <= resizeMargin)
+                resize[H] = 'w';
+            else if (x >= selection.width - resizeMargin)
+                resize[H] = 'e';
+        }
+
+        $border2.css('cursor', resize.length ? resize.join('') + '-resize' :
+            options.movable ? 'move' : '');
+    }
+
+    function areaMouseDown(event)
+    {
+        if (event.which != 1) return false;
+
+        if (options.resizable && resize.length > 0) {
+            jQuery('body').css('cursor', resize.join('') + '-resize');
+
+            x1 = (resize[H] == 'w' ? selection.x2 : selection.x1) + imgOfs.left;
+            y1 = (resize[V] == 'n' ? selection.y2 : selection.y1) + imgOfs.top;
+
+            jQuery(document).mousemove(selectingMouseMove);
+            $border2.unbind('mousemove', areaMouseMove);
+
+            jQuery(document).one('mouseup', function () {
+                resize = [ ];
+
+                jQuery('body').css('cursor', '');
+
+                if (options.autoHide)
+                    $a.add($o).hide();
+
+                options.onSelectEnd(img, selection);
+
+                jQuery(document).unbind('mousemove', selectingMouseMove);
+                $border2.mousemove(areaMouseMove);
+            });
+        }
+        else if (options.movable) {
+            moveX = selection.x1 + imgOfs.left;
+            moveY = selection.y1 + imgOfs.top;
+            startX = event.pageX;
+            startY = event.pageY;
+
+            jQuery(document)
+                .mousemove(movingMouseMove)
+                .one('mouseup', function () {
+                    options.onSelectEnd(img, selection);
+
+                    jQuery(document).unbind('mousemove', movingMouseMove);
+                });
+        }
+        else
+            jQuery(img).mousedown(event);
+
+        return false;
+    }
+
+    function aspectRatioXY()
+    {
+        x2 = Math.max(imgOfs.left, Math.min(imgOfs.left + imgWidth,
+            x1 + Math.abs(y2 - y1) * aspectRatio * (x2 > x1 ? 1 : -1)));
+        y2 = Math.round(Math.max(imgOfs.top, Math.min(imgOfs.top + imgHeight,
+            y1 + Math.abs(x2 - x1) / aspectRatio * (y2 > y1 ? 1 : -1))));
+        x2 = Math.round(x2);
+    }
+
+    function aspectRatioYX()
+    {
+        y2 = Math.max(imgOfs.top, Math.min(imgOfs.top + imgHeight,
+            y1 + Math.abs(x2 - x1) / aspectRatio * (y2 > y1 ? 1 : -1)));
+        x2 = Math.round(Math.max(imgOfs.left, Math.min(imgOfs.left + imgWidth,
+            x1 + Math.abs(y2 - y1) * aspectRatio * (x2 > x1 ? 1 : -1))));
+        y2 = Math.round(y2);
+    }
+
+    function selectingMouseMove(event)
+    {
+        x2 = !resize.length || resize[H] || aspectRatio ? event.pageX : selection.x2 + imgOfs.left;
+        y2 = !resize.length || resize[V] || aspectRatio ? event.pageY : selection.y2 + imgOfs.top;
+
+        if (options.minWidth && Math.abs(x2 - x1) < options.minWidth) {
+            x2 = x1 - options.minWidth * (x2 < x1 ? 1 : -1);
+
+            if (x2 < imgOfs.left)
+                x1 = imgOfs.left + options.minWidth;
+            else if (x2 > imgOfs.left + imgWidth)
+                x1 = imgOfs.left + imgWidth - options.minWidth;
+        }
+
+        if (options.minHeight && Math.abs(y2 - y1) < options.minHeight) {
+            y2 = y1 - options.minHeight * (y2 < y1 ? 1 : -1);
+
+            if (y2 < imgOfs.top)
+                y1 = imgOfs.top + options.minHeight;
+            else if (y2 > imgOfs.top + imgHeight)
+                y1 = imgOfs.top + imgHeight - options.minHeight;
+        }
+
+        x2 = Math.max(imgOfs.left, Math.min(x2, imgOfs.left + imgWidth));
+        y2 = Math.max(imgOfs.top, Math.min(y2, imgOfs.top + imgHeight));
+
+        if (aspectRatio)
+            if (Math.abs(x2 - x1) / aspectRatio > Math.abs(y2 - y1))
+                aspectRatioYX();
+            else
+                aspectRatioXY();
+
+        if (options.maxWidth && Math.abs(x2 - x1) > options.maxWidth) {
+            x2 = x1 - options.maxWidth * (x2 < x1 ? 1 : -1);
+            if (aspectRatio) aspectRatioYX();
+        }
+
+        if (options.maxHeight && Math.abs(y2 - y1) > options.maxHeight) {
+            y2 = y1 - options.maxHeight * (y2 < y1 ? 1 : -1);
+            if (aspectRatio) aspectRatioXY();
+        }
+
+        selection.x1 = Math.min(x1, x2) - imgOfs.left;
+        selection.x2 = Math.max(x1, x2) - imgOfs.left;
+        selection.y1 = Math.min(y1, y2) - imgOfs.top;
+        selection.y2 = Math.max(y1, y2) - imgOfs.top;
+        selection.width = Math.abs(x2 - x1);
+        selection.height = Math.abs(y2 - y1);
+
+        update();
+
+        options.onSelectChange(img, selection);
+
+        return false;        
+    }
+
+    function movingMouseMove(event)
+    {
+        x1 = Math.max(imgOfs.left, Math.min(moveX + event.pageX - startX,
+            imgOfs.left + imgWidth - selection.width));
+        y1 = Math.max(imgOfs.top, Math.min(moveY + event.pageY - startY,
+            imgOfs.top + imgHeight - selection.height));
+        x2 = x1 + selection.width;
+        y2 = y1 + selection.height;
+
+        selection.x1 = x1 - imgOfs.left;
+        selection.y1 = y1 - imgOfs.top;
+        selection.x2 = x2 - imgOfs.left;
+        selection.y2 = y2 - imgOfs.top;
+        
+        update();
+
+        options.onSelectChange(img, selection);
+        event.preventDefault();
+
+        return false;
+    }
+
+    function imgMouseDown(event)
+    {
+        if (event.which != 1) return false;
+
+        startX = x1 = event.pageX;
+        startY = y1 = event.pageY;
+        selection.x1 = selection.x2 = x1 - imgOfs.left;
+        selection.y1 = selection.y2 = y1 - imgOfs.top;
+        selection.width = 0;
+        selection.height = 0;
+
+        resize = [ ];
+
+        update();
+        $a.add($o).show();
+
+        jQuery(document).mousemove(selectingMouseMove);
+        $border2.unbind('mousemove', areaMouseMove);
+
+        options.onSelectStart(img, selection);
+
+        jQuery(document).one('mouseup', function () {
+            if (options.autoHide)
+                $a.add($o).hide();
+
+            options.onSelectEnd(img, selection);
+
+            jQuery(document).unbind('mousemove', selectingMouseMove);
+            $border2.mousemove(areaMouseMove);
+        });
+
+        return false;
+    }
+
+    this.setOptions = function(newOptions)
+    {
+        options = jQuery.extend(options, newOptions);
+
+        if (newOptions.x1 != null) {
+            selection.x1 = newOptions.x1;
+            selection.y1 = newOptions.y1;
+            selection.x2 = newOptions.x2;
+            selection.y2 = newOptions.y2;
+            newOptions.show = true;
+        }
+
+        imgWidth = jQuery(img).width();
+        imgHeight = jQuery(img).height();
+        imgOfs = jQuery(img).offset();
+        
+        $p = jQuery(img);
+
+        while ($p.length && !$p.is('body')) {
+            if (!isNaN($p.css('z-index')) && $p.css('z-index') > zIndex)
+                zIndex = $p.css('z-index');
+            if ($p.css('position') == 'fixed') fixed = true;
+
+            $p = $p.parent();
+        }
+    
+        x1 = selection.x1 + imgOfs.left;
+        y1 = selection.y1 + imgOfs.top;
+        x2 = selection.x2 + imgOfs.left;
+        y2 = selection.y2 + imgOfs.top;
+        selection.width = x2 - x1;
+        selection.height = y2 - y1;
+        
+        update();
+        
+        if (newOptions.hide)
+            $a.add($o).hide();
+        else if (newOptions.show)
+            $a.add($o).show();
+
+        $a.css({ borderWidth: options.borderWidth + 'px' });
+        $area.css({ backgroundColor: options.selectionColor, opacity: options.selectionOpacity });       
+        $border1.css({ borderStyle: 'solid', borderColor: options.borderColor1 });
+        $border2.css({ borderStyle: 'dashed', borderColor: options.borderColor2 });
+        $o.css({ opacity: options.outerOpacity, backgroundColor: options.outerColor });
+
+        aspectRatio = options.aspectRatio && (d = options.aspectRatio.split(/:/)) ?
+            d[0] / d[1] : null;
+
+        if (options.disable || options.enable === false) {
+            $a.unbind('mousemove', areaMouseMove).unbind('mousedown', areaMouseDown);
+            jQuery(img).add($o).unbind('mousedown', imgMouseDown);
+        }
+        else if (options.enable || options.disable === false) {
+            if (options.resizable || options.movable)
+                $a.mousemove(areaMouseMove).mousedown(areaMouseDown);
+
+            jQuery(img).add($o).mousedown(imgMouseDown);
+        }
+
+        options.enable = options.disable = undefined;
+    };
+
+    if (jQuery.browser.msie)
+        jQuery(img).attr('unselectable', 'on');
+        
+    $a.add($o).css({ display: 'none', position: fixed ? 'fixed' : 'absolute', overflow: 'hidden', 
+        zIndex: zIndex > 0 ? zIndex : null });
+    $area.css({ borderStyle: 'solid' });
+
+    jQuery('body').append($o.add($a));
+
+    initOptions = {
+        borderColor1: '#000',
+        borderColor2: '#fff',
+        borderWidth: 1,
+        movable: true,
+        resizable: true,
+        selectionColor: '#fff',
+        selectionOpacity: 0.2,
+        outerColor: '#000',
+        outerOpacity: 0.2,
+        onSelectStart: function () {},
+        onSelectChange: function () {},
+        onSelectEnd: function () {}
+    };
+
+    options = jQuery.extend(initOptions, options);
+    this.setOptions(options);
+};
+
+jQuery.fn.imgAreaSelect = function (options) {
+    options = options || {};
+
+    this.each(function () {
+        if (jQuery(this).data('imgAreaSelect'))
+            jQuery(this).data('imgAreaSelect').setOptions(options);
+        else {
+            if (options.enable === undefined && options.disable === undefined)
+                options.enable = true;
+
+            jQuery(this).data('imgAreaSelect', new jQuery.imgAreaSelect(this, options));
+        }
+    });
+
+    return this;
+};