officegen-dbb/lib/pptxplg-widescreen.js

Modification of Ziv Barber's officegen, to provide a reasonable way to have line breaks in table cells.

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// 'Software'), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

/**
 * This function creating the wide screen plugin object.
 * @param {object} pluginsman Access to the plugins manager for pptx documents.
 * @constructor
 * @name MakeWidescreenPlugin
 */
function MakeWidescreenPlugin ( pluginsman ) {
	var funcThis = this;

	if ( pluginsman.docType !== 'pptx' && pluginsman.docType !== 'ppsx' ) {
		throw "[pptx-widescreen] This plugin supporting only PowerPoint based documents.";
	} // Endif.

	this.pluginsman = pluginsman;
	this.pptxData = pluginsman.getDataStorage ();

	// We want to extend the main API of the pptx document object:
	pluginsman.registerCallback ( 'makeDocApi', function ( docObj ) { funcThis.extendPptxApi ( docObj ); } );
	return this;
}

/**
 * This function extending the main document object with new API methods.
 * @param {object} docObj Document object.
 */
MakeWidescreenPlugin.prototype.extendPptxApi = function ( docObj ) {
	var funcThis = this;

	docObj.setSlideSize = function ( cx, cy, sizeType ) {
		if ( cx && typeof cx === 'number' ) {
			funcThis.pptxData.pptWidth = cx * funcThis.pptxData.EMUS_PER_PT;
		} // Endif.

		if ( cy && typeof cy === 'number' ) {
			funcThis.pptxData.pptHeight = cy * funcThis.pptxData.EMUS_PER_PT;
		} // Endif.

		/*
		Supported types:

		'35mm'
		'A3'
		'A4'
		'B4ISO'
		'B4JIS'
		'B5ISO'
		'B5JIS'
		'banner'
		'custom'
		'hagakiCard'
		'ledger'
		'letter'
		'overhead'
		'screen16x10'
		'screen16x9'
		'screen4x3'
		*/

		if ( sizeType && typeof sizeType === 'string' ) {
			funcThis.pptxData.pptType = sizeType;
		} // Endif.
	};

	docObj.setWidescreen = function ( wide ) {
		funcThis.pptxData.pptWidth 	= wide ? (960 * funcThis.pptxData.EMUS_PER_PT) 		: funcThis.pptxData.pptWidth;
		funcThis.pptxData.pptType 	= wide ? 'screen16x9' 	: 'screen4x3';
	};
};

module.exports = MakeWidescreenPlugin;