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Moved drawing logic outside of tools. Previews and animations are broken. Performance is somehow degraded

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juliandescottes
2012-09-04 14:10:16 +02:00
parent 561c35c882
commit 4c4faa88e6
13 changed files with 249 additions and 263 deletions
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50
js/drawingtools/BaseTool.js
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@ -8,55 +8,11 @@
ns.BaseTool = function() {};
ns.BaseTool.prototype.applyToolAt = function(col, row, frame, color, canvas, dpi) {};
ns.BaseTool.prototype.applyToolAt = function(col, row, frame) {};
ns.BaseTool.prototype.moveToolAt = function(col, row, frame, color, canvas, dpi) {};
ns.BaseTool.prototype.moveToolAt = function(col, row, frame) {};
ns.BaseTool.prototype.releaseToolAt = function(col, row, frame, color, canvas, dpi) {};
// TODO: Remove that when we have the centralized redraw loop
ns.BaseTool.prototype.drawPixelInCanvas = function (col, row, canvas, color, dpi) {
var context = canvas.getContext('2d');
if(color == undefined || color == Constants.TRANSPARENT_COLOR) {
context.clearRect(col * dpi, row * dpi, dpi, dpi);
}
else {
if(color != Constants.SELECTION_TRANSPARENT_COLOR) {
// TODO(vincz): Found a better design to update the palette, it's called too frequently.
$.publish(Events.COLOR_USED, [color]);
}
context.fillStyle = color;
context.fillRect(col * dpi, row * dpi, dpi, dpi);
}
};
// TODO: Remove that when we have the centralized redraw loop
ns.BaseTool.prototype.drawFrameInCanvas = function (frame, canvas, dpi) {
var color;
for(var col = 0, num_col = frame.length; col < num_col; col++) {
for(var row = 0, num_row = frame[col].length; row < num_row; row++) {
color = frame[col][row];
this.drawPixelInCanvas(col, row,canvas, color, dpi);
}
}
};
// For some tools, we need a fake canvas that overlay the drawing canvas. These tools are
// generally 'drap and release' based tools (stroke, selection, etc) and the fake canvas
// will help to visualize the tool interaction (without modifying the canvas).
ns.BaseTool.prototype.createCanvasOverlay = function (canvas) {
var overlayCanvas = document.createElement("canvas");
overlayCanvas.className = "canvas-overlay";
overlayCanvas.setAttribute("width", canvas.width);
overlayCanvas.setAttribute("height", canvas.height);
canvas.parentNode.appendChild(overlayCanvas);
return overlayCanvas;
};
ns.BaseTool.prototype.removeCanvasOverlays = function () {
$(".canvas-overlay").remove();
};
ns.BaseTool.prototype.releaseToolAt = function(col, row, frame) {};
/**
* Bresenham line algorihtm: Get an array of pixels from