author | Dan Fuhry <dan@enanocms.org> |
Sat, 21 Aug 2010 23:32:06 -0400 | |
changeset 42 | 7c6e2e97aa08 |
parent 35 | 1dd30d7bf29f |
permissions | -rw-r--r-- |
18
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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1 |
var canvas_mousemove_temp; |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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var canvas_keyup_temp; |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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var CANVAS_KEY_ESC = 27; |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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|
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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5 |
function canvas_click(obj) |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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{ |
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var click_x = mouseX - $dynano(obj).Left(); |
7c6e2e97aa08
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var click_y = mouseY - $dynano(obj).Top() + getScrollOffset(); |
7c6e2e97aa08
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if ( obj.canvas_in_draw ) |
7c6e2e97aa08
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{ |
7c6e2e97aa08
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canvas_close_draw(obj, click_x, click_y); |
7c6e2e97aa08
Added AJAX file upload support.
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} |
7c6e2e97aa08
Added AJAX file upload support.
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parents:
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else |
7c6e2e97aa08
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parents:
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15 |
{ |
7c6e2e97aa08
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16 |
canvas_open_draw(obj, click_x, click_y); |
7c6e2e97aa08
Added AJAX file upload support.
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parents:
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17 |
} |
18
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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18 |
} |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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|
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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|
20 |
function canvas_open_draw(obj, x, y) |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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21 |
{ |
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obj.canvas_box_obj = canvas_create_box(obj, x, y, 1, 1); |
7c6e2e97aa08
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obj.canvas_in_draw = true; |
7c6e2e97aa08
Added AJAX file upload support.
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obj.onclick = function(e) |
7c6e2e97aa08
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{ |
7c6e2e97aa08
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canvas_click(this); |
7c6e2e97aa08
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var onclose = this.getAttribute('canvas:oncomplete'); |
7c6e2e97aa08
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if ( onclose ) |
7c6e2e97aa08
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{ |
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eval(onclose); |
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} |
7c6e2e97aa08
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} |
7c6e2e97aa08
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canvas_replace_mousemove(obj); |
18
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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|
34 |
} |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
changeset
|
35 |
|
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
changeset
|
36 |
function canvas_replace_mousemove(obj) |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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37 |
{ |
42
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canvas_mousemove_temp = document.onmousemove; |
7c6e2e97aa08
Added AJAX file upload support.
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parents:
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canvas_mousemove_temp.box_obj = obj; |
7c6e2e97aa08
Added AJAX file upload support.
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parents:
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canvas_keyup_temp = document.onkeyup; |
7c6e2e97aa08
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parents:
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document.onmousemove = function(e) |
7c6e2e97aa08
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parents:
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42 |
{ |
7c6e2e97aa08
Added AJAX file upload support.
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parents:
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43 |
canvas_mousemove_temp(e); |
7c6e2e97aa08
Added AJAX file upload support.
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canvas_redraw_box(canvas_mousemove_temp.box_obj); |
7c6e2e97aa08
Added AJAX file upload support.
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45 |
} |
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document.onkeyup = function(e) |
7c6e2e97aa08
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47 |
{ |
7c6e2e97aa08
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if ( typeof(canvas_keyup_temp) == 'function' ) |
7c6e2e97aa08
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49 |
canvas_keyup_temp(e); |
7c6e2e97aa08
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50 |
|
7c6e2e97aa08
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if ( e.keyCode == CANVAS_KEY_ESC ) |
7c6e2e97aa08
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canvas_cancel_draw(canvas_mousemove_temp.box_obj); |
7c6e2e97aa08
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53 |
} |
18
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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|
54 |
} |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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55 |
|
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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56 |
function canvas_restore_mousemove() |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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57 |
{ |
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document.onmousemove = canvas_mousemove_temp; |
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document.onkeyup = canvas_keyup_temp; |
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c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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60 |
} |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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61 |
|
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
diff
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62 |
function canvas_create_box(obj, x, y, width, height) |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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parents:
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63 |
{ |
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var inner_width = width - 2; |
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var inner_height = height - 2; |
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var top = $dynano(obj).Top() + y; |
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var left = $dynano(obj).Left() + x; |
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|
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// draw outer box |
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var div_outer = document.createElement('div'); |
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div_outer.className = 'canvasbox'; |
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div_outer.style.border = '1px solid #000000'; |
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div_outer.style.position = 'absolute'; |
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div_outer.style.width = String(width) + 'px'; |
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div_outer.style.height = String(height) + 'px'; |
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div_outer.style.top = String(top) + 'px'; |
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div_outer.style.left = String(left) + 'px'; |
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|
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div_outer.rootY = y; |
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div_outer.rootX = x; |
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|
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var div_inner = document.createElement('div'); |
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div_inner.style.border = '1px solid #FFFFFF'; |
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if ( IE ) |
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85 |
{ |
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86 |
div_inner.style.width = '100%'; |
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87 |
div_inner.style.height = '100%'; |
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88 |
} |
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else |
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90 |
{ |
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div_inner.style.width = String(inner_width) + 'px'; |
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div_inner.style.height = String(inner_height) + 'px'; |
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93 |
} |
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|
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95 |
div_outer.appendChild(div_inner); |
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96 |
|
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97 |
obj.appendChild(div_outer); |
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98 |
return div_outer; |
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Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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parents:
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|
99 |
} |
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Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
Dan
parents:
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100 |
|
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Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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parents:
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|
101 |
function canvas_redraw_box(obj) |
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102 |
{ |
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103 |
if ( !obj.canvas_box_obj ) |
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104 |
return false; |
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105 |
var rel_x = mouseX - $dynano(obj).Left(); |
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106 |
var rel_y = mouseY - $dynano(obj).Top() + getScrollOffset(); |
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107 |
var new_width = rel_x - obj.canvas_box_obj.rootX; |
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108 |
var new_height = rel_y - obj.canvas_box_obj.rootY; |
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109 |
var rootX = obj.canvas_box_obj.rootX; |
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110 |
var rootY = obj.canvas_box_obj.rootY; |
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111 |
// Limit dimensions to width - origin_x and height - origin_y |
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112 |
if ( new_width + rootX > $dynano(obj).Width() ) |
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113 |
new_width = $dynano(obj).Width() - rootX; |
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114 |
if ( new_height + rootY > $dynano(obj).Height() ) |
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115 |
new_height = $dynano(obj).Height() - rootY; |
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116 |
// If going to the top or left of the origin, avoid negative width/height by moving the box |
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117 |
if ( new_width < 1 ) |
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118 |
{ |
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119 |
new_width = rootX - rel_x; |
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120 |
obj.canvas_box_obj.style.left = String(mouseX + 2) + 'px'; |
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121 |
} |
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122 |
if ( new_height < 1 ) |
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123 |
{ |
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124 |
new_height = rootY - rel_y; |
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125 |
obj.canvas_box_obj.style.top = String(mouseY + getScrollOffset() + 2) + 'px'; |
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126 |
} |
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127 |
obj.canvas_box_obj.style.width = String(new_width) + 'px'; |
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128 |
obj.canvas_box_obj.style.height = String(new_height) + 'px'; |
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129 |
new_width = new_width - 2; |
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130 |
new_height = new_height - 2; |
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131 |
if ( IE ) |
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|
132 |
{ |
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133 |
var nw = new_width; |
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134 |
var nh = new_height; |
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135 |
obj.canvas_box_obj.firstChild.style.width = String(nw) + 'px'; |
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136 |
obj.canvas_box_obj.firstChild.style.height = String(nh) + 'px'; |
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137 |
} |
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138 |
else |
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139 |
{ |
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140 |
obj.canvas_box_obj.firstChild.style.width = String(new_width) + 'px'; |
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|
141 |
obj.canvas_box_obj.firstChild.style.height = String(new_height) + 'px'; |
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142 |
} |
18
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143 |
} |
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144 |
|
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145 |
function canvas_close_draw(obj, x, y) |
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|
146 |
{ |
42
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147 |
canvas_restore_mousemove(); |
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148 |
obj.canvas_in_draw = false; |
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|
149 |
obj.canvas = { |
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150 |
top: $dynano(obj.canvas_box_obj).Top() - $dynano(obj).Top(), |
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151 |
left: $dynano(obj.canvas_box_obj).Left() - $dynano(obj).Left(), |
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|
152 |
width: $dynano(obj.canvas_box_obj).Width(), |
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153 |
height: $dynano(obj.canvas_box_obj).Height() |
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|
154 |
} |
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|
155 |
obj.onclick = function(e) |
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|
156 |
{ |
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|
157 |
canvas_click(this); |
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|
158 |
} |
18
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|
159 |
} |
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Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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|
160 |
|
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|
161 |
function canvas_cancel_draw(obj) |
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|
162 |
{ |
42
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|
163 |
canvas_restore_mousemove(); |
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|
164 |
obj.canvas_in_draw = false; |
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165 |
obj.removeChild(obj.canvas_box_obj); |
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|
166 |
obj.canvas_box_obj = null; |
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|
167 |
obj.onclick = function(e) |
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|
168 |
{ |
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|
169 |
canvas_click(this); |
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|
170 |
} |
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|
171 |
var ga = obj.getAttribute('canvas:oncancel'); |
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|
172 |
if ( ga ) |
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|
173 |
{ |
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|
174 |
eval(ga); |
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changeset
|
175 |
} |
18
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Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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|
176 |
} |
c1c398349651
Added initial support for notes (aka tags) on images, done completely (including initial load of metadata) with AJAX. They're not fixed at 100x100 like on Facebook either.
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changeset
|
177 |