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Partial implementation of text editing function

This commit is contained in:
Lewis Hemens 2014-03-23 13:27:43 +00:00
parent bfec7a220a
commit 8b27d9813d
1 changed files with 42 additions and 0 deletions
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42
js-lib/draw.js
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@ -204,6 +204,10 @@ ascii.DrawText.prototype.start = function(position) {
this.state.commitDraw();
$('#text-tool-input').val('');
this.startPosition = position;
// Not working yet, needs fixing so that it can remove the underlying text completely.
//this.loadExistingText(position);
// Effectively highlights the starting cell.
var currentValue = this.state.getCell(this.startPosition).getRawValue();
this.state.drawValue(this.startPosition,
@ -244,6 +248,44 @@ ascii.DrawText.prototype.handleKey = function(value) {
}
};
/**
* Loads any existing text if it is present.
* TODO: This is horrible, and does not quite work, fix it.
*/
ascii.DrawText.prototype.loadExistingText = function(position) {
var currentPosition = new ascii.Vector(position.x, position.y);
var cell = this.state.getCell(position);
var spacesCount = 0;
// Go back to find the start of the line.
while ((!cell.isSpecial() && cell.getRawValue() != null) || spacesCount < 1) {
if (cell.getRawValue() == null) {
spacesCount++;
} else if (!cell.isSpecial()) {
spacesCount = 0;
}
currentPosition.x--;
cell = this.state.getCell(currentPosition);
}
this.startPosition = currentPosition.add(new ascii.Vector(spacesCount + 1, 0));
var text = '';
spacesCount = 0;
currentPosition = this.startPosition.clone();
// Go forward to load the text.
while ((!cell.isSpecial() && cell.getRawValue() != null) || spacesCount < 1) {
cell = this.state.getCell(currentPosition);
if (cell.getRawValue() == null) {
spacesCount++;
text += ' ';
} else if (!cell.isSpecial()) {
spacesCount = 0;
text += cell.getRawValue();
this.state.drawValue(currentPosition, cell.getRawValue());
}
currentPosition.x++;
}
$('#text-tool-input').val(text.substr(0, text.length - 1));
};
/**
* @constructor
* @implements {ascii.DrawFunction}