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exportToPPTX.m
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exportToPPTX.m
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classdef exportToPPTX < handle
% exportToPPTX Creates PowerPoint 2007+ (PPTX) slides
%
% exportToPPTX allows user to create PowerPoint 2007+ (PPTX) files
% without using COM-objects automation. Proper XML files are created and
% packed into PPTX file that can be read and displayed by PowerPoint.
%
% exportToPPTX methods:
% exportToPPTX - Starts new presentation or opens an existing presentation
% save - Saves current presentation
% addSlide - Adds a slide to the presentation
% switchSlide - Switches current slide to a given slide ID
% addPicture - Adds picture to the current slide
% addShape - Adds lines or closed shapes to the current slide
% addNote - Adds notes information to the current slide
% addTextbox - Adds textbox to the current slide
% addTable - Adds PowerPoint table to the current slide
%
% exportToPPTX properties:
% author - Presentation's author, default is 'exportToPPTX'
% title - Presentation's title, default is 'Blank'
% subject - Presentation's subject, default is blank
% description - Presentation's description, default is blank
%
% Basic usage example:
%
% % Start new presentation
% pptx = exportToPPTX();
%
% % Set presentation title
% pptx.title = 'Basic example'
%
% % Just an example image
% load mandrill; figure('color','w'); image(X); colormap(map); axis off; axis image;
%
% % Add slide, then add image to it, then add box
% pptx.addSlide();
% pptx.addPicture(gcf,'Scale','maxfixed');
% pptx.addTextbox('Mandrill','Position',[0 5 6 1],'FontWeight','bold','HorizontalAlignment','center','VerticalAlignment','bottom');
%
% % Save
% pptx.save('example.pptx');
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% PROPERTIES
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Define constants
properties (Constant,Access=private)
CONST_IN_TO_EMU = 914400;
CONST_PT_TO_EMU = 12700;
CONST_DEG_TO_EMU = 60000;
CONST_FONT_PX_TO_PPTX = 100;
end
%% Define run-time public (settable) properties
properties (Access=public)
% author Presentation's author, default is 'exportToPPTX'
%
% Example:
% pptx.author = 'exportToPPTX Example';
author = 'exportToPPTX';
% title Presentation's title, default is 'Blank'
%
% Example:
% pptx.title = 'Demonstration Presentation';
title = 'Blank';
% subject Presentation's subject, default is blank
%
% Example:
% pptx.subject = 'Demonstration of various exportToPPTX commands';
subject = '';
% description Presentation's description, default is blank
%
% Example:
% pptx.description = 'Description goes in here';
description = '';
end
%% Define run-time gettable properties (not settable)
properties (GetAccess=public,SetAccess=private)
dimensions = [10 7.5]; % Presentation's dimensions in inches (read only)
fullName = ''; % Full filename of the openned presentation (empty if new)
numSlides = 0; % Total number of slides
currentSlide % Current slide
end
%% Define run-time private properties (for internal use)
properties (Access=private)
revNumber = 0;
numMasters
tempName
createdDate
updatedDate
imageTypes
videoTypes
bgColor
lastSlideId
lastRId
themeNum = 0;
Slide
SlideMaster
NotesMaster
end
%% Define internal XML structures that are kept in memory for modifications
properties (Access=private)
XML
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% METHODS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Public methods
methods
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function PPTX = exportToPPTX(fileName,varargin)
% exportToPPTX([fileName],...)
%
% Start new presentation or open an existing presentation
% Actual PowerPoint files are not written until 'save' command is called.
% No required inputs. This command does not return any values.
%
% Additional parameters:
% Dimensions two element vector specifying presentation's width and
% height in inches. Default size is 10 x 7.5 in.
% Author specify presentation's author. Default is "exportToPPTX".
% Title specify presentation's title. Default is "Blank".
% Subject specify presentation's subject line. Default is empty (blank).
% Comments specify presentation's comments. Default is empty (blank).
% BackgroundColor Three element vector specifying RGB value in the
% range from 0 to 1. By default background is white.
%
% Examples:
% % Start new presentation
% pptx = exportToPPTX();
%
% % Open existing presentation
% pptx = exportToPPTX('\\path\to\some\existing\presentation.pptx');
%% Obtain temp folder name
tempName = tempname;
while exist(tempName,'dir'),
tempName = tempname;
end
%% Create temp folder to hold all PPTX files
mkdir(tempName);
PPTX.tempName = tempName;
if nargin>0 && ~isempty(fileName)
% Open file
%% Check input validity
[filePath,fileName,fileExt] = fileparts(fileName);
if isempty(filePath),
filePath = pwd;
end
if ~strncmpi(fileExt,'.pptx',5),
fileExt = cat(2,fileExt,'.pptx');
end
fullName = fullfile(filePath,cat(2,fileName,fileExt));
PPTX.fullName = fullName;
if exist(PPTX.fullName,'file'),
PPTX.openExistingPPTX();
%% Load important XML files into memory
PPTX.loadAndParseXMLFiles();
else
error('exportToPPTX:fileNotFound','PPTX to open (%s) not found.',PPTX.fullName);
end
else
% New file
mi = false(size(varargin));
[PPTX.dimensions,mi] = exportToPPTX.getPVPair(varargin,'Dimensions',PPTX.dimensions,mi);
[PPTX.author,mi] = exportToPPTX.getPVPair(varargin,'Author',PPTX.author,mi);
[PPTX.title,mi] = exportToPPTX.getPVPair(varargin,'Title',PPTX.title,mi);
[PPTX.subject,mi] = exportToPPTX.getPVPair(varargin,'Subject',PPTX.subject,mi);
[PPTX.description,mi] = exportToPPTX.getPVPair(varargin,'Comments',PPTX.description,mi);
[PPTX.bgColor,mi] = exportToPPTX.getPVPair(varargin,'BackgroundColor',[],mi);
if any(~mi)
error('exportToPPTX:badProperty','Unrecognized property %s',varargin{find(~mi,1)});
end
if numel(PPTX.dimensions)~=2,
error('exportToPPTX:badDimensions','Slide dimensions vector must have two values only: width x height');
end
if ~isempty(PPTX.bgColor),
if ~isnumeric(PPTX.bgColor) || numel(PPTX.bgColor)~=3,
error('exportToPPTX:badProperty','Bad property value found in BackgroundColor');
end
end
%% Create new (empty) PPTX files structure
PPTX.fullName = [];
PPTX.createdDate = datestr(now,'yyyy-mm-ddTHH:MM:SS');
PPTX.initBlankPPTX();
PPTX.loadAndParseXMLFiles();
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function delete(PPTX)
% Destructor: clears out temporary storage
% TODO: check if recently saved before destroying changes
% Remove temporary directory and all its contents
rmdir(PPTX.tempName,'s');
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function disp(PPTX)
% Command window display
showFileName = PPTX.fullName;
if isempty(showFileName),
showFileName = '<new>';
end
fprintf('\tFile: %s\n',showFileName);
fprintf('\tTotal slides: %d\n',PPTX.numSlides);
fprintf('\tCurrent slide: %d\n',PPTX.currentSlide);
fprintf('\tAuthor: %s\n',PPTX.author);
fprintf('\tTitle: %s\n',PPTX.title);
fprintf('\tSubject: %s\n',PPTX.subject);
fprintf('\tDescription: %s\n',PPTX.description);
fprintf('\tDimensions: %.2f x %.2f in\n',PPTX.dimensions);
fprintf('\n');
if ~isempty(PPTX.SlideMaster),
for imast=1:numel(PPTX.SlideMaster),
fprintf('\tMaster #%d: %s\n',imast,PPTX.SlideMaster(imast).name);
if ~isempty(PPTX.SlideMaster(imast).Layout),
for ilay=1:numel(PPTX.SlideMaster(imast).Layout),
placeHolders = sprintf('%s, ',PPTX.SlideMaster(imast).Layout(ilay).place{:});
if ~isempty(placeHolders),
placeHolders = sprintf('(%s)',placeHolders(1:end-2));
end
fprintf('\t\tLayout #%d: %s %s\n',ilay,PPTX.SlideMaster(imast).Layout(ilay).name,placeHolders);
end
else
fprintf('\t\tNo layouts defined.\n');
end
end
else
fprintf('\tNo master layouts defined.\n');
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function currentSlideId = addSlide(PPTX,varargin)
% addSlide(...)
%
% Adds a slide to the presentation. No additional inputs required. Returns
% newly created slide ID (sequential slide number signifying total slides in
% the deck, not neccessarily slide order).
%
% Additional parameters:
% Position Specify position at which to insert new slide. The value
% must be between 1 and the total number of slides.
% BackgroundColor Three element vector specifying RGB value in the
% range from 0 to 1. By default background is white.
% Master Master layout ID or name. By default first master layout is used.
% Layout Slide template layout ID or name. By default first slide
% template layout is used.
%
% Examples:
% % Add new slide
% pptx.addSlide();
%
% % Add new slide with green background at position 1
% pptx.addSlide('BackgroundColor','g','Position',1);
% Adding a new slide to PPTX
% 1. Create slide#.xml file
% 2. Create slide#.xml.rels file
% 3. Update presentation.xml to include new slide
% 4. Update presentation.xml.rels to link new slide to presentation.xml
% 5. Update [Content_Types].xml
% Parse optional inputs
mi = false(size(varargin));
[bgCol,mi] = exportToPPTX.getPVPair(varargin,'BackgroundColor',[],mi);
[insPos,mi] = exportToPPTX.getPVPair(varargin,'Position',[],mi);
[masterID,mi] = exportToPPTX.getPVPair(varargin,'Master',1,mi);
[layoutID,mi] = exportToPPTX.getPVPair(varargin,'Layout',1,mi);
if any(~mi)
error('exportToPPTX:badProperty','Unrecognized property %s',varargin{find(~mi,1)});
end
bgCol = exportToPPTX.validateColor(bgCol);
if ~isempty(bgCol),
bgContent = { ...
'<p:bg>'
'<p:bgPr>'
'<a:solidFill>'
['<a:srgbClr val="' bgCol '"/>']
'</a:solidFill>'
'<a:effectLst/>'
'</p:bgPr>'
'</p:bg>'
};
else
bgContent = {};
end
if ~isempty(insPos) && (insPos<1 || insPos>PPTX.numSlides+1 || numel(insPos)>1),
% Error condition
error('exportToPPTX:badProperty','addSlide position must be between 1 and the total number of slides');
end
% Parse master number and layout number
% Use first master slide by default
if isnumeric(masterID),
masterNum = masterID;
elseif ischar(masterID),
masterNum = find(strncmpi({PPTX.SlideMaster.name},masterID,length(masterID)));
if isempty(masterNum),
warning('exportToPPTX:badName','Master layout "%s" does not exist in the current presentation',masterID);
masterNum = 1;
end
if numel(masterNum)>1,
warning('exportToPPTX:badName','There are multiple matches for master layout "%s"',masterID);
masterNum = masterNum(1);
end
end
if ~isempty(masterNum) && (masterNum<1 || masterNum>PPTX.numMasters),
error('exportToPPTX:badProperty','addSlide cannot proceed because requested slide master number does not exist');
end
% Use first layout slide by default
if isnumeric(layoutID),
layoutNum = layoutID;
elseif ischar(layoutID),
layoutNum = find(strncmpi({PPTX.SlideMaster(masterNum).Layout.name},layoutID,length(layoutID)));
if isempty(layoutNum),
warning('exportToPPTX:badName','Layout "%s" does not exist in the current master',layoutID);
layoutNum = 1;
end
if numel(layoutNum)>1,
warning('exportToPPTX:badName','There are multiple matches for layout "%s"',layoutID);
layoutNum = layoutNum(1);
end
end
if ~isempty(layoutNum) && (layoutNum<1 || layoutNum>PPTX.SlideMaster(masterNum).numLayout),
error('exportToPPTX:badProperty','addSlide cannot proceed because requested slide layout number does not exist');
end
% Check if slides folder exists
if ~exist(fullfile(PPTX.tempName,'ppt','slides'),'dir'),
mkdir(fullfile(PPTX.tempName,'ppt','slides'));
mkdir(fullfile(PPTX.tempName,'ppt','slides','_rels'));
end
% Before creating new slide, is there a current slide that needs to be
% saved to XML file?
if isfield(PPTX.XML,'Slide') && ~isempty(PPTX.XML.Slide),
fileName = PPTX.Slide(PPTX.currentSlide).file;
xmlwrite(fullfile(PPTX.tempName,'ppt','slides',fileName),PPTX.XML.Slide);
xmlwrite(fullfile(PPTX.tempName,'ppt','slides','_rels',cat(2,fileName,'.rels')),PPTX.XML.SlideRel);
end
% Update useful variables
PPTX.numSlides = PPTX.numSlides+1;
PPTX.lastSlideId = PPTX.lastSlideId+1;
PPTX.lastRId = PPTX.lastRId+1;
% Create new XML file
% file name and path are relative to presentation.xml file
fileName = sprintf('slide%d.xml',PPTX.numSlides);
fileContent = { ...
'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
'<p:sld xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:p="http://schemas.openxmlformats.org/presentationml/2006/main">'
'<p:cSld>'
[bgContent{:}]
'<p:spTree>'
'<p:nvGrpSpPr>'
'<p:cNvPr id="1" name=""/>'
'<p:cNvGrpSpPr/>'
'<p:nvPr/>'
'</p:nvGrpSpPr>'
'<p:grpSpPr>'
'<a:xfrm>'
'<a:off x="0" y="0"/>'
'<a:ext cx="0" cy="0"/>'
'<a:chOff x="0" y="0"/>'
'<a:chExt cx="0" cy="0"/>'
'</a:xfrm>'
'</p:grpSpPr>'
'</p:spTree>'
'</p:cSld>'
'<p:clrMapOvr>'
'<a:masterClrMapping/>'
'</p:clrMapOvr>'
'</p:sld>'};
retCode = exportToPPTX.writeTextFile(fullfile(PPTX.tempName,'ppt','slides',fileName),fileContent);
% Create new XML relationships file
fileRelsPath = cat(2,fileName,'.rels');
fileContent = { ...
'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'
'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">'
['<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideLayout" Target="../slideLayouts/' PPTX.SlideMaster(masterNum).Layout(layoutNum).file '"/>']
'</Relationships>'};
retCode = exportToPPTX.writeTextFile(fullfile(PPTX.tempName,'ppt','slides','_rels',fileRelsPath),fileContent) & retCode;
% Link new slide to presentation.xml
% Check if list of slides node exists
sldIdLstNode = exportToPPTX.findNode(PPTX.XML.Pres,'p:sldIdLst');
if isempty(sldIdLstNode),
% Note: order of tags within XML structure is important, slide list
% must show up after p:sldMasterIdLst and before p:sldSz
exportToPPTX.addNodeBefore(PPTX.XML.Pres,'p:presentation','p:sldIdLst','p:sldSz');
end
% Order of items in the sldIdLst node determines the order of the slides
if ~isempty(insPos),
exportToPPTX.addNodeAtPosition(PPTX.XML.Pres,'p:sldIdLst','p:sldId',insPos, ...
{'id',int2str(PPTX.lastSlideId), ...
'r:id',sprintf('rId%d',PPTX.lastRId)});
else
exportToPPTX.addNode(PPTX.XML.Pres,'p:sldIdLst','p:sldId', ...
{'id',int2str(PPTX.lastSlideId), ...
'r:id',sprintf('rId%d',PPTX.lastRId)});
end
% Link new slide filename to presentation.xml slide ID
exportToPPTX.addNode(PPTX.XML.PresRel,'Relationships','Relationship', ...
{'Id',cat(2,'rId',int2str(PPTX.lastRId)), ...
'Type','http://schemas.openxmlformats.org/officeDocument/2006/relationships/slide', ...
'Target',cat(2,'slides/',fileName)});
% Include new slide in the table of contents
exportToPPTX.addNode(PPTX.XML.TOC,'Types','Override', ...
{'PartName',cat(2,'/ppt/slides/',fileName), ...
'ContentType','application/vnd.openxmlformats-officedocument.presentationml.slide+xml'});
% Load created files
PPTX.XML.Slide = xmlread(fullfile(PPTX.tempName,'ppt','slides',fileName));
PPTX.XML.SlideRel = xmlread(fullfile(PPTX.tempName,'ppt','slides','_rels',fileRelsPath));
% Even though masterNum and layoutNum variables are available in this
% function we still want to get actual numbers based on generated XML file
[mNum,lNum] = PPTX.parseMasterLayoutNumber();
% Assign data to slide
PPTX.Slide(PPTX.numSlides).id = PPTX.lastSlideId;
PPTX.Slide(PPTX.numSlides).rId = sprintf('rId%d',PPTX.lastRId);
PPTX.Slide(PPTX.numSlides).file = fileName;
PPTX.Slide(PPTX.numSlides).objId = 1;
PPTX.Slide(PPTX.numSlides).masterNum = mNum;
PPTX.Slide(PPTX.numSlides).layoutNum = lNum;
PPTX.currentSlide = PPTX.numSlides;
currentSlideId = PPTX.currentSlide;
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function currentSlide = switchSlide(PPTX,slideId)
% switchSlide(slideId)
%
% Switches current slide to be operated on. Requires slide ID as the second
% input parameter.
%
% Examples:
% % Switch current slide to slide number 2
% pptx.switchSlide(2);
%% Inputs
if nargin<2,
error('exportToPPTX:minInput','Second argument required: slide ID to switch to');
end
% Check slide numbers
if slideId<1 || slideId>PPTX.numSlides || numel(slideId)>1,
% Error condition
error('exportToPPTX:badProperty','switchSlide position must be between 1 and the total number of slides');
end
% Before creating new slide, is there a current slide that needs to be
% saved to XML file?
if isfield(PPTX.XML,'Slide') && ~isempty(PPTX.XML.Slide),
fileName = PPTX.Slide(PPTX.currentSlide).file;
xmlwrite(fullfile(PPTX.tempName,'ppt','slides',fileName),PPTX.XML.Slide);
xmlwrite(fullfile(PPTX.tempName,'ppt','slides','_rels',cat(2,fileName,'.rels')),PPTX.XML.SlideRel);
end
fileRelsPath = cat(2,PPTX.Slide(slideId).file,'.rels');
PPTX.XML.Slide = xmlread(fullfile(PPTX.tempName,'ppt','slides',PPTX.Slide(slideId).file));
PPTX.XML.SlideRel = xmlread(fullfile(PPTX.tempName,'ppt','slides','_rels',fileRelsPath));
allIDs = exportToPPTX.getAllAttribute(PPTX.XML.Slide,'id');
allIDNums = str2num(char(reshape(allIDs,[],1)));
PPTX.Slide(slideId).objId = max(allIDNums);
[mNum,lNum] = PPTX.parseMasterLayoutNumber();
PPTX.Slide(slideId).masterNum = mNum;
PPTX.Slide(slideId).layoutNum = lNum;
PPTX.currentSlide = slideId;
currentSlide = PPTX.currentSlide;
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function addPicture(PPTX,imgData,varargin)
% addPicture([figureHandle|axesHandle|imageFilename|CDATA],...)
%
% Adds picture to the current slide. Requires figure or axes handle or image
% filename or CDATA to be supplied. Images supplied as handles or CDATA
% matricies are saved in PNG format. This command does not return any values.
%
% Additional parameters:
% Scale Controls how image is placed on the slide
% noscale - No scaling (place figure as is in the center of
% the slide)
% maxfixed - Max size while preserving aspect ratio (default
% when Position is not set)
% max - Max size with no aspect ratio preservation
% (default when Position is set)
% Position Four element vector: x, y, width, height (in inches) or
% template placeholder ID or name.
% Coordinates x=0, y=0 are in the upper left corner of the slide.
% LineWidth Width of the picture's edge line, a single value (in
% points). Edge is not drawn by default. Unless either
% LineWidth or EdgeColor are specified.
% EdgeColor Color of the picture's edge, a three element vector
% specifying RGB value. Edge is not drawn by default. Unless
% either LineWidth or EdgeColor are specified.
%
% Examples:
% % Add current figure
% figure,plot(rand(10));
% pptx.addPicture(gcf);
%
% % Lower left corner picture inserted via image CDATA (height x width x 3)
% rgb = imread('ngc6543a.jpg');
% pptx.addPicture(rgb,'Position',[1 3.5 3 2]);
% Adding image to existing slide
% 1. Add <p:pic> node to slide#.xml
% 2. Update slide#.xml.rels to link new pic to an image file
%
%% Inputs
if nargin<2,
error('exportToPPTX:minInput','Second argument required: figure handle or filename or CDATA');
end
mi = false(size(varargin));
[picPositionNew,mi] = exportToPPTX.getPVPair(varargin,'Position',[],mi);
if isempty(picPositionNew)
[scaleOpt,mi] = exportToPPTX.getPVPair(varargin,'Scale','maxfixed',mi);
else
[scaleOpt,mi] = exportToPPTX.getPVPair(varargin,'Scale','max',mi);
end
[lnWNew,mi] = exportToPPTX.getPVPair(varargin,'LineWidth',[],mi);
[lnColNew,mi] = exportToPPTX.getPVPair(varargin,'EdgeColor',[],mi);
if any(~mi)
error('exportToPPTX:badProperty','Unrecognized property %s',varargin{find(~mi,1)});
end
% Defaults
showLn = false;
lnW = 1;
lnCol = [0 0 0];
% Check if media folder exists
if ~exist(fullfile(PPTX.tempName,'ppt','media'),'dir'),
mkdir(fullfile(PPTX.tempName,'ppt','media'));
end
% Set object ID
PPTX.Slide(PPTX.currentSlide).objId = PPTX.Slide(PPTX.currentSlide).objId+1;
objId = PPTX.Slide(PPTX.currentSlide).objId;
% Get screen size (used in a few places)
screenSize = get(0,'ScreenSize');
screenSize = screenSize(1,3:4);
emusPerPx = max(round(PPTX.dimensions.*PPTX.CONST_IN_TO_EMU)./screenSize);
isVideoClass = false;
% Based on the input format, decide what to do about it
if ischar(imgData),
if exist(imgData,'file'),
% Image or video filename
[d,d,inImgExt] = fileparts(imgData);
inImgExt = inImgExt(2:end);
imageName = sprintf('media-%d-%d.%s',PPTX.currentSlide,objId,inImgExt);
imagePath = fullfile(PPTX.tempName,'ppt','media',imageName);
copyfile(imgData,imagePath);
if any(strcmpi({'emf','wmf','eps'},inImgExt)),
% Vector images cannot be loaded by MatLab to determine their
% native sizes, but they can be scaled to any size anyway
imdims = PPTX.dimensions([2 1])./emusPerPx.*PPTX.CONST_IN_TO_EMU;
elseif exist('VideoReader','class') && any(strcmpi(get(VideoReader.getFileFormats,'Extension'),inImgExt)),
% This is a new MatLab style access to video information
% Only format types supported on this system are allowed
% because video has to be read to create a thumbnail image
videoName = imageName;
videoPath = imagePath;
vidinfo = VideoReader(videoPath);
imdims = [vidinfo.Height vidinfo.Width];
% Video gets its own relationship ID
PPTX.Slide(PPTX.currentSlide).objId = PPTX.Slide(PPTX.currentSlide).objId+1;
vidRId = PPTX.Slide(PPTX.currentSlide).objId;
PPTX.Slide(PPTX.currentSlide).objId = PPTX.Slide(PPTX.currentSlide).objId+1;
vidR2Id = PPTX.Slide(PPTX.currentSlide).objId;
% Prepare a thumbnail image
thumbData = read(vidinfo,1);
imageName = sprintf('media-thumb-%d-%d.png',PPTX.currentSlide,objId);
imagePath = fullfile(PPTX.tempName,'ppt','media',imageName);
imwrite(thumbData,imagePath);
clear vidinfo;
isVideoClass = true;
elseif any(strcmpi({'avi'},inImgExt)),
% This is an older MatLab style, which supports only AVI
videoName = imageName;
videoPath = imagePath;
vidinfo = aviinfo(videoPath);
imdims = [vidinfo.Height vidinfo.Width];
% Video gets its own relationship ID
PPTX.Slide(PPTX.currentSlide).objId = PPTX.Slide(PPTX.currentSlide).objId+1;
vidRId = PPTX.Slide(PPTX.currentSlide).objId;
PPTX.Slide(PPTX.currentSlide).objId = PPTX.Slide(PPTX.currentSlide).objId+1;
vidR2Id = PPTX.Slide(PPTX.currentSlide).objId;
% Prepare a thumbnail image
thumbData = aviread(imgData,1);
imageName = sprintf('media-thumb-%d-%d.png',PPTX.currentSlide,objId);
imagePath = fullfile(PPTX.tempName,'ppt','media',imageName);
imwrite(thumbData.cdata,imagePath);
clear vidinfo;
isVideoClass = true;
else
imgCdata = imread(imgData);
imdims = size(imgCdata);
end
else
error('exportToPPTX:fileNotFound','Image file requested to be added to the slide was not found');
end
elseif isnumeric(imgData) && numel(imgData)>1,
% Image CDATA
imageName = sprintf('image-%d-%d.png',PPTX.currentSlide,objId);
imagePath = fullfile(PPTX.tempName,'ppt','media',imageName);
imwrite(imgData,imagePath);
imdims = size(imgData);
inImgExt = 'png';
elseif ishghandle(imgData,'Figure') || ishghandle(imgData,'Axes'),
% Either figure or axes handle
img = getframe(imgData);
imageName = sprintf('image-%d-%d.png',PPTX.currentSlide,objId);
imagePath = fullfile(PPTX.tempName,'ppt','media',imageName);
imwrite(img.cdata,imagePath);
imdims = size(img.cdata);
inImgExt = 'png';
else
% Error condition
error('exportToPPTX:badInput','addPicture command requires a valid figure/axes handle or filename or CDATA');
end
% If XML file does not support this format yet, then add it
if isVideoClass,
if ~any(strcmpi(PPTX.videoTypes,inImgExt)),
PPTX.addVideoTypeSupport(inImgExt);
end
% Make sure PNG (format for video thumbnail image) is supported
if ~any(strcmpi(PPTX.imageTypes,'png')),
PPTX.addImageTypeSupport('png');
end
else
if ~any(strcmpi(PPTX.imageTypes,inImgExt)),
PPTX.addImageTypeSupport(inImgExt);
end
end
% % Save image -- this code would be MUCH faster, but less supported: requires additional MEX file and uses unsupported hardcopy
% % Obtain a copy of fast PNG writing routine: http://www.mathworks.com/matlabcentral/fileexchange/40384
% imageName = sprintf('image%d.png',PPTX.currentSlide);
% imagePath = fullfile(PPTX.tempName,'ppt','media',imageName);
% cdata = hardcopy(figH,'-Dopengl','-r0');
% savepng(cdata,imagePath);
% Figure out picture size in PPTX units (EMUs)
imEMUs = imdims([2 1]).*emusPerPx;
% Check picture position (absolute page position, or placeholder position)
% Adding a picture to a placeholder follows a different procedure than
% textbox. Picture is added into a placeholder, but its postion attributes
% are filled out anyway, but matched to the underlying placeholder size.
picPlaceholder = [];
picPosition = [];
mNum = PPTX.Slide(PPTX.currentSlide).masterNum;
lNum = PPTX.Slide(PPTX.currentSlide).layoutNum;
if ~isempty(picPositionNew)
if ischar(picPositionNew),
% Change placeholder name into placeholder ID
posID = find(strncmpi(PPTX.SlideMaster(mNum).Layout(lNum).place,picPositionNew,length(picPositionNew)));
if isempty(posID),
% Try search in ph attribute for the name match
posID = find(strncmpi(PPTX.SlideMaster(mNum).Layout(lNum).ph,picPositionNew,length(picPositionNew)));
if isempty(posID),
warning('exportToPPTX:badName','Placeholder "%s" does not exist in the current layout',picPositionNew);
posID = 1;
end
if numel(posID)>1,
warning('exportToPPTX:badName','There are multiple matches for placeholder "%s"',picPositionNew);
posID = posID(1);
end
end
picPlaceholder = posID;
elseif isnumeric(picPositionNew) && numel(picPositionNew)==1,
if (picPositionNew<1 || picPositionNew>numel(PPTX.SlideMaster(mNum).Layout(lNum).ph)),
error('exportToPPTX:badProperty','Invalid placeholder index');
end
picPlaceholder = picPositionNew;
elseif isnumeric(picPositionNew) && numel(picPositionNew)==4,
picPosition = round(picPositionNew.*PPTX.CONST_IN_TO_EMU);
else
error('exportToPPTX:badProperty','Bad property value found in Position');
end
end
if ~isempty(picPlaceholder),
frameDimensions = PPTX.SlideMaster(mNum).Layout(lNum).position{picPlaceholder};
elseif ~isempty(picPosition)
frameDimensions = picPosition;
else
frameDimensions = [0 0 round(PPTX.dimensions.*PPTX.CONST_IN_TO_EMU)];
end
aspRatioAttrib = {};
switch lower(scaleOpt),
case 'noscale',
picPosition = round([frameDimensions([1 2])+(frameDimensions([3 4])-imEMUs)./2 imEMUs]);
aspRatioAttrib = [aspRatioAttrib {'noChangeAspect','1'}];
case 'maxfixed',
scaleSize = min(frameDimensions([3 4])./imEMUs);
newImEMUs = imEMUs.*scaleSize;
picPosition = round([frameDimensions([1 2])+(frameDimensions([3 4])-newImEMUs)./2 newImEMUs]);
aspRatioAttrib = [aspRatioAttrib {'noChangeAspect','1'}];
case 'max',
picPosition = round(frameDimensions);
otherwise,
error('exportToPPTX:badProperty','Bad property value found in Scale');
end
if ~isempty(lnWNew),
showLn = true;
lnW = lnWNew;
if ~isnumeric(lnW) || numel(lnW)~=1,
error('exportToPPTX:badProperty','Bad property value found in LineWidth');
end
end
if ~isempty(lnColNew),
lnCol = lnColNew;
showLn = true;
if ~isnumeric(lnCol) || numel(lnCol)~=3,
error('exportToPPTX:badProperty','Bad property value found in EdgeColor');
end
end
% Set object name
objName = 'Media File';
if ~isempty(picPlaceholder),
objName = PPTX.SlideMaster(mNum).Layout(lNum).place{picPlaceholder};
end
% Add image/video to slide XML file
picNode = exportToPPTX.addNode(PPTX.XML.Slide,'p:spTree','p:pic');
nvPicPr = exportToPPTX.addNode(PPTX.XML.Slide,picNode,'p:nvPicPr');
cNvPr = exportToPPTX.addNode(PPTX.XML.Slide,nvPicPr,'p:cNvPr',{'id',objId,'name',objName,'descr',imageName});
if isVideoClass,
exportToPPTX.addNode(PPTX.XML.Slide,cNvPr,'a:hlinkClick',{'r:id','','action','ppaction://media'});
end
cNvPicPr = exportToPPTX.addNode(PPTX.XML.Slide,nvPicPr,'p:cNvPicPr');
exportToPPTX.addNode(PPTX.XML.Slide,cNvPicPr,'a:picLocks',aspRatioAttrib);
nvPr = exportToPPTX.addNode(PPTX.XML.Slide,nvPicPr,'p:nvPr');
if ~isempty(picPlaceholder),
allAttribs = {};
if ~isempty(PPTX.SlideMaster(mNum).Layout(lNum).idx{picPlaceholder}),
allAttribs = [allAttribs {'idx',PPTX.SlideMaster(mNum).Layout(lNum).idx{picPlaceholder}}];
end
if ~isempty(PPTX.SlideMaster(mNum).Layout(lNum).ph{picPlaceholder}),
allAttribs = [allAttribs {'type',PPTX.SlideMaster(mNum).Layout(lNum).ph{picPlaceholder}}];
end
exportToPPTX.addNode(PPTX.XML.Slide,nvPr,'p:ph',allAttribs);
end
if isVideoClass,
exportToPPTX.addNode(PPTX.XML.Slide,nvPr,'a:videoFile',{'r:link',sprintf('rId%d',vidRId)});
extLst = exportToPPTX.addNode(PPTX.XML.Slide,nvPr,'p:extLst');
pExt = exportToPPTX.addNode(PPTX.XML.Slide,extLst,'p:ext',{'uri','{DAA4B4D4-6D71-4841-9C94-3DE7FCFB9230}'});
exportToPPTX.addNode(PPTX.XML.Slide,pExt,'p14:media',{'xmlns:p14','http://schemas.microsoft.com/office/powerpoint/2010/main','r:embed',sprintf('rId%d',vidR2Id)});
end
blipFill = exportToPPTX.addNode(PPTX.XML.Slide,picNode,'p:blipFill');
exportToPPTX.addNode(PPTX.XML.Slide,blipFill,'a:blip',{'r:embed',sprintf('rId%d',objId)','cstate','print'});
stretch = exportToPPTX.addNode(PPTX.XML.Slide,blipFill,'a:stretch');
exportToPPTX.addNode(PPTX.XML.Slide,stretch,'a:fillRect');
spPr = exportToPPTX.addNode(PPTX.XML.Slide,picNode,'p:spPr');
axfm = exportToPPTX.addNode(PPTX.XML.Slide,spPr,'a:xfrm');
exportToPPTX.addNode(PPTX.XML.Slide,axfm,'a:off',{'x',picPosition(1),'y',picPosition(2)});
exportToPPTX.addNode(PPTX.XML.Slide,axfm,'a:ext',{'cx',picPosition(3),'cy',picPosition(4)});
prstGeom = exportToPPTX.addNode(PPTX.XML.Slide,spPr,'a:prstGeom',{'prst','rect'});
exportToPPTX.addNode(PPTX.XML.Slide,prstGeom,'a:avLst');
if showLn,
aLn = exportToPPTX.addNode(PPTX.XML.Slide,spPr,'a:ln',{'w',lnW*PPTX.CONST_PT_TO_EMU});
sFil = exportToPPTX.addNode(PPTX.XML.Slide,aLn,'a:solidFill');
exportToPPTX.addNode(PPTX.XML.Slide,sFil,'a:srgbClr',{'val',sprintf('%s',dec2hex(round(lnCol*255),2).')});
end
% Add slide timing info, node <p:timing>
if isVideoClass,
% TODO: this needs to be added at sometime later...
pTiming = exportToPPTX.addNode(PPTX.XML.Slide,'p:sld','p:timing');
tnLst = exportToPPTX.addNode(PPTX.XML.Slide,pTiming,'p:tnLst');
pPar = exportToPPTX.addNode(PPTX.XML.Slide,tnLst,'p:par');
exportToPPTX.addNode(PPTX.XML.Slide,pPar,'p:cTn',{'id',1,'dur','indefinite','restart','never','nodeType','tmRoot'});
end
% Add image reference to rels file
exportToPPTX.addNode(PPTX.XML.SlideRel,'Relationships','Relationship', ...
{'Id',sprintf('rId%d',objId), ...
'Type','http://schemas.openxmlformats.org/officeDocument/2006/relationships/image', ...
'Target',cat(2,'../media/',imageName)});
if isVideoClass,
exportToPPTX.addNode(PPTX.XML.SlideRel,'Relationships','Relationship', ...
{'Id',sprintf('rId%d',vidRId), ...
'Type','http://schemas.openxmlformats.org/officeDocument/2006/relationships/video', ...
'Target',cat(2,'../media/',videoName)});
exportToPPTX.addNode(PPTX.XML.SlideRel,'Relationships','Relationship', ...
{'Id',sprintf('rId%d',vidR2Id), ...
'Type','http://schemas.microsoft.com/office/2007/relationships/media', ...
'Target',cat(2,'../media/',videoName)});
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function addShape(PPTX,xData,yData,varargin)
% addShape(xData,yData,...)
%
% Add lines or closed shapes to the current slide. Requires X and Y data to
% be supplied. This command does not return any values.
%
% Additional parameters:
% ClosedShape Specifies whether the shape is automatically closed or not.
% Default value is false.
% LineWidth Width of the line, a single value (in points). Default line
% width is 1 point. Set LineWidth to zero have no edge drawn.
% LineColor Color of the drawn line, a three element vector specifying
% RGB value. Default color is black.
% LineStyle Style of the drawn line. Default style is a solid line.
% The following styles are available:
% - (solid), : (dotted), -. (dash dot), -- (dashes)
% BackgroundColor Shape fill color, a three element vector specifying
% RGB value. By default shapes are drawn transparent.
%
% Examples:
% % Add lines
% xData = linspace(0,12,101);
% yData = 3+sin(xData*2)*0.3;
% pptx.addShape(xData,yData,'LineWidth',2,'LineStyle',':');
%
% % Add filled circle
% theta = linspace(0,2*pi,101); xData = sin(theta); yData = cos(theta);
% pptx.addShape(xData+4,yData+1,'LineWidth',2,'LineColor','r','LineStyle','--','BackgroundColor','g','ClosedShape',true);
% Adding a line/patch segment (custGeom) to PPTX
% 1. Add <p:sp> node to slide#.xml
%% Inputs
if nargin<3,
error('exportToPPTX:minInput','Two input argument required: X and Y data');
end
mi = false(size(varargin));
[bCol,mi] = exportToPPTX.getPVPair(varargin,'BackgroundColor',[],mi);
[isClosed,mi] = exportToPPTX.getPVPair(varargin,'ClosedShape',false,mi);
[lnWVal,mi] = exportToPPTX.getPVPair(varargin,'LineWidth',[],mi);
[lnColVal,mi] = exportToPPTX.getPVPair(varargin,'LineColor',[],mi);
[lnStyleVal,mi] = exportToPPTX.getPVPair(varargin,'LineStyle',[],mi);
if any(~mi)
error('exportToPPTX:badProperty','Unrecognized property %s',varargin{find(~mi,1)});
end
% Input error checking
if isempty(xData) || isempty(yData),
% Error condition
error('exportToPPTX:badInput','addShape command requires non-empty X and Y data');
end
if size(xData)~=size(yData),
% Error condition
error('exportToPPTX:badInput','addShape command requires X and Y data sizes to match');
end
if numel(xData)==1 || numel(yData)==1,
% Error condition
error('exportToPPTX:badInput','addShape command requires at least two X and Y data point');
end
% If needed, reshape data (dim 1 = segments of a single line, dim 2 = different lines)
if size(xData,1)==1,
xData = reshape(xData,[],1);
yData = reshape(yData,[],1);
end
% Convert to PPTX coordinates
xData = round(xData*PPTX.CONST_IN_TO_EMU);
yData = round(yData*PPTX.CONST_IN_TO_EMU);
% Defaults
showLn = true;
lnW = 1;
lnCol = exportToPPTX.validateColor([0 0 0]);
lnStyle = '';
bCol = exportToPPTX.validateColor(bCol);
if ~isempty(lnWVal),
lnW = lnWVal;
if ~isnumeric(lnW) || numel(lnW)~=1,
error('exportToPPTX:badProperty','Bad property value found in LineWidth');
end
if lnW==0,
showLn = false;
end
end
lnColVal = exportToPPTX.validateColor(lnColVal);
if ~isempty(lnColVal),
lnCol = lnColVal;
end
if ~isempty(lnStyleVal),
switch (lnStyleVal),
case '-',
lnStyle = 'solid';
case ':',
lnStyle = 'sysDot';
case '-.',
lnStyle = 'sysDashDot';
case '--',
lnStyle = 'sysDash';
otherwise,
error('exportToPPTX:badProperty','Bad property value found in LineStyle');
end
% Other possible values supported by PowerPoint
% dash
% dashDot
% dot
% lgDash (large dash)
% lgDashDot
% lgDashDotDot
% solid
% sysDash (system dash)