piskel/js/Palette.js
Vince 4c611d80c5 Create palette component
Create Palette component (was inside the ToolSelector before)
Fix the palette generation as well.
2012-09-03 22:30:53 +02:00

101 lines
2.7 KiB
JavaScript

/*
* @provide pskl.Palette
*
* @require Constants
* @require Events
*/
$.namespace("pskl");
pskl.Palette = (function() {
var paletteRoot,
paletteColors = [];
/**
* @private
*/
var onPickerChange_ = function(evt) {
var inputPicker = $(evt.target);
$.publish(Events.COLOR_SELECTED, [inputPicker.val()]);
};
/**
* @private
*/
var createPalette_ = function (colors) {
// Always adding transparent color
paletteRoot.html('<span class="palette-color transparent-color" data-color="TRANSPARENT" title="Transparent"></span>');
for(var color in colors) {
if(color != Constants.TRANSPARENT_COLOR) {
addColorToPalette_(color);
}
}
};
/**
* @private
*/
var addColorToPalette_ = function (color) {
if (paletteColors.indexOf(color) == -1) {
var colorEl = document.createElement("li");
colorEl.className = "palette-color";
colorEl.setAttribute("data-color", color);
colorEl.setAttribute("title", color);
colorEl.style.background = color;
paletteRoot[0].appendChild(colorEl);
paletteColors.push(color);
}
};
/**
* @private
*/
var onPaletteColorClick_ = function (event) {
var selectedColor = $(event.target).data("color");
var colorPicker = $('#color-picker');
if (selectedColor == Constants.TRANSPARENT_COLOR) {
// We can set the current palette color to transparent.
// You can then combine this transparent color with an advanced
// tool for customized deletions.
// Eg: bucket + transparent: Delete a colored area
// Stroke + transparent: hollow out the equivalent of a stroke
// The colorpicker can't be set to a transparent state.
// We set its background to white and insert the
// string "TRANSPARENT" to mimic this state:
colorPicker[0].color.fromString("#fff");
colorPicker.val("TRANSPARENT");
} else {
colorPicker[0].color.fromString(selectedColor);
}
$.publish(Events.COLOR_SELECTED, [selectedColor])
};
return {
init: function(framesheet) {
paletteRoot = $("#palette");
// Initialize palette:
createPalette_(framesheet.getUsedColors());
$.subscribe(Events.FRAMESHEET_RESET, function(evt) {
createPalette_(framesheet.getUsedColors());
});
paletteRoot.click(onPaletteColorClick_);
$.subscribe(Events.COLOR_USED, function(evt, color) {
addColorToPalette_(color);
});
// Initialize colorpicker:
var colorPicker = $('#color-picker');
colorPicker.val(Constants.DEFAULT_PEN_COLOR);
colorPicker.change(onPickerChange_);
}
};
})();