Matlab源码及GUI实现-公式编辑器-编辑各种Mathtype可编辑的复杂公式，支持保存和删除常用公式集

function texeditor(varargin) %TEXEDITOR TeX equation editor % TEXEDITOR starts an equation editor for LaTeX equations. % % See also: TEXT, TEX % Copyright 2006-2010 The MathWorks, Inc. %todo: % move templates around % select text and see it highlighted in eqn preview % shortcut window needs improvement % say how to reset to default templates figs = allchild(0); f = findall(figs,'flat','Type','figure','Tag','TexEditorFigure'); if nargin > 0 callbacks = getappdata(f,'Callbacks'); feval(callbacks.cmdCB,varargin{:}); return; end if ~isempty(f) set(f,'Visible','on'); figure(f); return; end if ~usejava('swing') error('texeditor:NeedSwing','Equation editor requires Java Swing.'); end dirname = fullfile(tempdir, 'texeditor'); % make sure Java .class and other helper files are on the path if ~exist(dirname,'dir') || isempty(which('TeXAction')) extractFiles(tempdir); javaaddpath(dirname); addpath(dirname); end % make sure icons are on the path back = get(0,'DefaultFigureColor'); set(f,'Color',back); [addim,addcmap] = imread('move_down.gif'); addcmap(end,:) = back; rolladdcmap = addcmap; roll = back.*[.75 .75 1]; rolladdcmap(end,:) = roll; [delim,delcmap] = imread('delete.gif'); delcmap(200:end,:) = repmat(back,size(delcmap,1)-199,1); disdelcmap = delcmap; disdelcmap(1:100,:) = repmat(back*.7,100,1); rolldelcmap = delcmap; rolldelcmap(200:end,:) = repmat(roll,size(delcmap,1)-199,1); addbuth = []; % for callbacks deletebuth = []; % for callbacks f = figure('MenuBar','none','ToolBar','none',... 'Name','Equation Editor',... 'Tag','TexEditorFigure',... 'NumberTitle','off',... 'HandleVisibility','callback',... 'DeleteFcn',@deletecb,... 'ResizeFcn',@layoutcb,... 'Position',[0 0 450 350],... 'Visible','off'); % read preferences or create defaults if none if ispref('texeditor','ActionTable') actionTable = getpref('texeditor','ActionTable'); else actionTable = { ... % key, cmd '/','\frac{}{}';... 'f','\frac{}{}';... 's','\sum_{}^{}';... 'p','\prod_{}^{}';... 'i','\int_{}^{}';... 'l','\lim_{ \to }';... 'q','\sqrt{}';... 'a','\alpha ';... 'b','\beta ';... 'g','\gamma ';... 'd','\delta ';... 'o','\overline{}';... 'u','\underline{}';... 't','\dot{}';... 'h','\hat{}'... }; end if ispref('texeditor','Templates') templates = getpref('texeditor','Templates'); else templates = {... '\alpha x_1^2 + \beta x_2^2',... '\sqrt{x+1}',... '\lim_{n \to \infty} \frac{1}{1+n}',... '\int_0^1 x \,dx',... '\sum_{n=0}^{\infty} \frac{1}{n^2}',... ['\left[ \begin{array}{cc}' char(10) ' A\ & B \\' ... char(10) ' C\ & D' char(10) '\end{array}\right]']... }; end % spacing in pixels bgap = 6; left = 107; bottom = 40; % template buttons buttonHeight = 48; buttonWidth = 80; % gui buttons guiBW = 65; guiBH = 25; % make Preview pane ax=axes('Units','pixels',... 'XLim',[0 1],'YLim',[0 1],... 'Layer','top',... 'Parent',f,... 'XTick',[],'YTick',[],'Box','on'); defaultFontSize = 20; dt = text(.5,.9,'','Interpreter','latex',... 'VerticalAlignment','top','HorizontalAlignment','center',... 'FontSize',defaultFontSize,'Parent',ax); errt = text(.5,.1,'','Interpreter','none',... 'VerticalAlignment','bottom','HorizontalAlignment','center',... 'FontSize',12,'Parent',ax); setappdata(f,'lastKnownGoodString',''); setappdata(f,'lastEditedString',''); % make Java text pane - undocumented feature alert! jc = com.mathworks.mwswing.MJTextPane; try jfont = com.mathworks.hg.peer.FontConverter.convertToJavaFont('Courier',14,0,0); catch jfont = com.mathworks.hg.util.FontConverter.convertToJavaFont('Courier',14,0,0); end set(jc,'Font',jfont); %[dummy,jch] = javacomponent(jc,[left+bgap .75 1-2*bgap-left .17].*pos,f); [dummy,jch] = javacomponent(jc,[0 0 1 1],f); jcc = handle(jc,'CallbackProperties'); set(jcc,'KeyTypedCallback',@typedCB) set(jcc,'CaretUpdateCallback',@caretCB) tabAct = TeXAction; tabAct.putValue(javax.swing.Action.SHORT_DESCRIPTION,'Tab'); % hmm... this still will put a Tab character into the contents... keymap = jc.getKeymap; keymap.addActionForKeyStroke(... javax.swing.KeyStroke.getKeyStroke('released TAB'),tabAct); setappdata(f,'Callbacks',jcc); % needed? %todo: margin in scrollpane jbp = com.mathworks.mwswing.MJPanel(com.mathworks.page.utils.VertFlowLayout); jsp = com.mathworks.mwswing.MJScrollPane(jbp,javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,... javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); jsbar = jsp.getVerticalScrollBar; set(jsp,'Font',jfont); [dummy,jcompsp] = javacomponent(jsp,[0 0 1 1],f); list = templates; addbut = addIconButton('Add Template',addim,addcmap,... @addtmplcb,[],rolladdcmap); [dummy,addbuth] = javacomponent(addbut,[0 0 1 1],f); deletebut = addIconButton('Delete Template',delim,delcmap,... @deltmplcb,disdelcmap,rolldelcmap); [dummy,deletebuth] = javacomponent(deletebut,[0 0 1 1],f); setEnabled(deletebut,false); miniax = axes('Units','pixels',... 'XLim',[0 1],'YLim',[0 1],... 'Layer','top','Visible','on',... 'Parent',f,... 'XTick',[],'YTick',[],'Box','off','Clipping','on',... 'XColor',back,'YColor',back); defaultMiniFontSize = 10; minit = text(.5,.5,'','Interpreter','latex',... 'VerticalAlignment','middle','HorizontalAlignment','center',... 'FontSize',defaultMiniFontSize,'Clipping','on',... 'HitTest','off','Parent',miniax); set(miniax,'ButtonDownFcn',@lastbutcb); set(f,'WindowButtonMotionFcn',@mousemovecb); scutbut = uicontrol('style','pushbutton',... 'String','Shortcuts',... 'Parent',f,... 'Callback',@shortcutscb); symsbut = uicontrol('style','pushbutton',... 'String','Symbols',... 'Parent',f,... 'Callback',@symbolscb); helpbut = uicontrol('style','pushbutton',... 'String','Help',... 'Parent',f,... 'Callback',@helpcb); closebut = uicontrol('style','pushbutton',... 'String','Close',... 'Parent',f,... 'Callback',@closecb); movegui(f,'center'); set(f,'visible','on') tim = timer('timerfcn',@dotimer,'startdelay',1,'executionmode','singleshot'); setappdata(f,'Callbacks',struct('cmdCB',@cmdCB)); doLayout; drawnow; pause(.5); for k=length(list):-1:1 addTemplate(jbp,list{k},[]); end jc.requestFocus; function doLayout pos = get(f,'Position'); origpos = pos; if pos(3) < 120 pos