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2014/10/16 ¤W¤È 12:04:28
jquery Programming Glossary: isdownHow to drag images / objects within Canvas? http://stackoverflow.com/questions/18333936/how-to-drag-images-objects-within-canvas 1 draw1 scaleValue false Code for panning on canvas var isDown false var startCoords var transX transY var last 0 0 canvas.onmousedown.. var last 0 0 canvas.onmousedown function e clearTooltip isDown true startCoords e.offsetX last 0 e.offsetY last 1 canvas.onmouseup.. last 0 e.offsetY last 1 canvas.onmouseup function e isDown false last e.offsetX startCoords 0 set last coordinates e.offsetY..
http://stackoverflow.com/questions/2970973/mouseover-while-mousedown Try something like this document .ready function var isDown false Tracks status of mouse button document .mousedown function.. Tracks status of mouse button document .mousedown function isDown true When mouse goes down set isDown to true .mouseup function.. .mousedown function isDown true When mouse goes down set isDown to true .mouseup function isDown false When mouse goes up set..
HTML5 Panning based on Mouse Movement http://stackoverflow.com/questions/7096921/html5-panning-based-on-mouse-movement fiddle a little http jsfiddle.net pimvdb VWn6t 3 . var isDown false whether mouse is pressed var startCoords 'grab' coordinates.. coordinates of mouse release canvas.onmousedown function e isDown true startCoords e.offsetX last 0 set start coordinates e.offsetY.. coordinates e.offsetY last 1 canvas.onmouseup function e isDown false last e.offsetX startCoords 0 set last coordinates e.offsetY..
How to drag images / objects within Canvas? http://stackoverflow.com/questions/18333936/how-to-drag-images-objects-within-canvas original_size .addEventListener click function scaleValue 1 draw1 scaleValue false Code for panning on canvas var isDown false var startCoords var transX transY var last 0 0 canvas.onmousedown function e clearTooltip isDown true startCoords.. on canvas var isDown false var startCoords var transX transY var last 0 0 canvas.onmousedown function e clearTooltip isDown true startCoords e.offsetX last 0 e.offsetY last 1 canvas.onmouseup function e isDown false last e.offsetX startCoords.. function e clearTooltip isDown true startCoords e.offsetX last 0 e.offsetY last 1 canvas.onmouseup function e isDown false last e.offsetX startCoords 0 set last coordinates e.offsetY startCoords 1 canvas.onmousemove function e var x..
http://stackoverflow.com/questions/2970973/mouseover-while-mousedown jquery onmouseover onmousedown share improve this question Try something like this document .ready function var isDown false Tracks status of mouse button document .mousedown function isDown true When mouse goes down set isDown to true .mouseup.. like this document .ready function var isDown false Tracks status of mouse button document .mousedown function isDown true When mouse goes down set isDown to true .mouseup function isDown false When mouse goes up set isDown to false .node.. var isDown false Tracks status of mouse button document .mousedown function isDown true When mouse goes down set isDown to true .mouseup function isDown false When mouse goes up set isDown to false .node .mouseover function if isDown Only change..
HTML5 Panning based on Mouse Movement http://stackoverflow.com/questions/7096921/html5-panning-based-on-mouse-movement panning in that you can drag around. I tried to update your fiddle a little http jsfiddle.net pimvdb VWn6t 3 . var isDown false whether mouse is pressed var startCoords 'grab' coordinates when pressing mouse var last 0 0 previous coordinates.. coordinates when pressing mouse var last 0 0 previous coordinates of mouse release canvas.onmousedown function e isDown true startCoords e.offsetX last 0 set start coordinates e.offsetY last 1 canvas.onmouseup function e isDown false last e.offsetX.. function e isDown true startCoords e.offsetX last 0 set start coordinates e.offsetY last 1 canvas.onmouseup function e isDown false last e.offsetX startCoords 0 set last coordinates e.offsetY startCoords 1 canvas.onmousemove function e if isDown..
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