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Rename variables for clarity

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This commit is contained in:
Tom Payne
2013-11-12 22:11:06 +01:00
parent eb6dc88a9f
commit 19758b6268
1 changed files with 18 additions and 13 deletions
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31
src/ol/render/canvas/canvasreplay.js
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@@ -98,21 +98,23 @@ ol.render.canvas.Replay.prototype.draw = function(context, transform) {
this.coordinates, 2, transform, this.pixelCoordinates_);
this.pixelCoordinates_ = pixelCoordinates; // FIXME ?
var instructions = this.instructions;
var i = 0;
var end, j, jj;
for (j = 0, jj = instructions.length; j < jj; ++j) {
var instruction = instructions[j];
var i = 0; // instruction index
var ii = instructions.length; // end of instructions
var d = 0; // data index
var dd; // end of per-instruction data
for (; i < ii; ++i) {
var instruction = instructions[i];
var type = /** @type {ol.render.canvas.Instruction} */ (instruction[0]);
if (type == ol.render.canvas.Instruction.BEGIN_PATH) {
context.beginPath();
} else if (type == ol.render.canvas.Instruction.CLOSE_PATH) {
context.closePath();
} else if (type == ol.render.canvas.Instruction.DRAW_IMAGE) {
end = /** @type {number} */ (instruction[1]);
dd = /** @type {number} */ (instruction[1]);
var imageStyle = /** @type {ol.style.Image} */ (instruction[2]);
for (; i < end; i += 2) {
var x = pixelCoordinates[i] - imageStyle.anchor[0];
var y = pixelCoordinates[i + 1] - imageStyle.anchor[1];
for (; d < dd; d += 2) {
var x = pixelCoordinates[d] - imageStyle.anchor[0];
var y = pixelCoordinates[d + 1] - imageStyle.anchor[1];
if (imageStyle.snapToPixel) {
x = (x + 0.5) | 0;
y = (y + 0.5) | 0;
@@ -122,11 +124,11 @@ ol.render.canvas.Replay.prototype.draw = function(context, transform) {
} else if (type == ol.render.canvas.Instruction.FILL) {
context.fill();
} else if (type == ol.render.canvas.Instruction.MOVE_TO_LINE_TO) {
context.moveTo(pixelCoordinates[i], pixelCoordinates[i + 1]);
context.moveTo(pixelCoordinates[d], pixelCoordinates[d + 1]);
goog.asserts.assert(goog.isNumber(instruction[1]));
end = /** @type {number} */ (instruction[1]);
for (i += 2; i < end; i += 2) {
context.lineTo(pixelCoordinates[i], pixelCoordinates[i + 1]);
dd = /** @type {number} */ (instruction[1]);
for (d += 2; d < dd; d += 2) {
context.lineTo(pixelCoordinates[d], pixelCoordinates[d + 1]);
}
} else if (type == ol.render.canvas.Instruction.SET_FILL_STYLE) {
goog.asserts.assert(goog.isObject(instruction[1]));
@@ -141,7 +143,10 @@ ol.render.canvas.Replay.prototype.draw = function(context, transform) {
context.stroke();
}
}
goog.asserts.assert(i == pixelCoordinates.length);
// assert that all data were consumed
goog.asserts.assert(d == pixelCoordinates.length);
// assert that all instructions were consumed
goog.asserts.assert(i == instructions.length);
};