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<table border="0" cellspacing="0" cellpadding="3" width="100%"><tr><td> <div align="center" id="bldcontent"> <a href="../default.htm"><img src="../images/opendocs.png" width="63" height="76" border="0"></a> <br> <div class="symbol">Your OpenSource Publisher™</div> </div> </td></tr></table> <div align="center" class="author"> <a href="../products.lxp">Products</a> | <a href="../wheretobuy.lxp">Where to buy</a> | <a href="../bookstore.lxp">Retailers</a> | <a href="../faq.lxp">FAQ</a> | <a href="../writeforus.lxp">Write for Us.</a> | <a href="#contact">Contact Us.</a> </div> <table border="0" cellspacing="3" cellpadding="0" width="100%"><tr><td width="100%"> <div class="content"> <table border="0" cellspacing="2" cellpadding="0" width="100%"><tr><td width="100%"> <div align="center"><H4 CLASS="AUTHOR"><A NAME="AEN5">Boudewijn Rempt</A><br><a href="../../https@secure.linuxports.com/opendocs/default.htm"><img src=odpyqt125.png></a><br>ISBN: 0-97003300-4-4<br><a href="../../https@secure.linuxports.com/opendocs/default.htm">Available from bookstores everywhere or you can order it here.</a><p>You can download the source files for the book <a href="pyqtsrc.tgz">(code / eps) here.</a><hr></div> <HTML><HEAD><TITLE>Toolbars</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.72"><LINKREL="HOME"TITLE="GUI Programming with Python: QT Edition"HREF="book1.htm"><LINKREL="UP"TITLE="Interface"HREF="c411.htm"><LINKREL="PREVIOUS"TITLE="Interface"HREF="c411.htm"><LINKREL="NEXT"TITLE="Project management"HREF="x545.htm"></HEAD><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">GUI Programming with Python: QT Edition</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><A accesskey="P" href="index.lxp@lxpwrap=c411_252ehtm.htm">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 3. Interface</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><A accesskey="N" href="index.lxp@lxpwrap=x545_252ehtm.htm">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1">Toolbars</A></H1><P>BlackAdder possesses an imposing array of toolbars. I'd certainly advise you to not emulate this example in your own application!</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The BlackAdder collection of toolbars.</P></DIV></P></DIV><P>Most of the toolbars are used when designing forms, as they represent different widgets and layout strategies. These widget buttons really belong in a floating tool palette, but let's gloss over that user interface design nicety.</P><P>Going from left to right and top to bottom on the previous image, we encounter the following toolbars:</P><DIVCLASS="SECT2"><H2CLASS="SECT2">File toolbar</A></H2><P>This toolbar contains buttons that can be used to create, open and save BlackAdder projects, single Python scripts and dialog designs. The last two buttons are used to compile either the current dialog design, or all dialog designs in the current project. In this case, compilation means that the XML-based designs are converted to usable Python code. Running a project also means that all form designs will be compiled to Python.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The file toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">Edit toolbar</A></H2><P>Undo, redo, cut, copy and paste are all fairly standard functions, and work on both widgets in dialog design mode, and on text in the editor.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The edit toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">Execution toolbar</A></H2><P> This toolbar contains buttons to start scripts and projects, debug scripts and projects, restart debugging, continue running while debugging, single stepping, clear the breakpoints in the currently edited script, clear all breakpoints set in the whole project, and cancel or stop debugging.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The execution toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">Layout manager toolbar</A></H2><P>On the next row we find the layout manager toolbar. Again, from left to right, there are buttons to resize widgets, insert a horizontal, vertical and grid layout manager, remove the current layout manager and insert a spacer object (the spacer is the the curious springy thing).</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The layout toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">Widgets</A></H2><P>Next follows a set of buttons that insert display widgets in your design: a textlabel, a picture label, and LCD number, a line, a progressbar, and finally, a textview and a more complex textbrowser (this is a small html browser in itself). These last two buttons are used to insert rich text widgets.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The first widget toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">Help</A></H2><P>The lonely button on the last toolbar of the second row gives you help if you first click on the button, and then on the object you want help with. By clicking it and then subsequently clicking on all toolbar buttons, you'll discover that I haven't been lying to you in this section.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The help toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">Pointer toolbar</A></H2><P>The first toolbar on the third row has three buttons. The first resets your cursor to a pointer. This is useful if you want to select a widget in your design, but have previously pressed another button. The second allows you to graphically connect signals and slots between elements on screen. The last button helps you put all the components of your design in the right tab order.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The pointer toolbar.</P></DIV></P></DIV></DIV><DIVCLASS="SECT2"><H2CLASS="SECT2">More widget toolbars</A></H2><P>The last four toolbars contain more widgets: pushbutton, toolbutton, radio button and checkbox. Then we have group box, button group, frame and tab-bar, next listbox, treeview, iconview and table. Finally you get line-editor, spin box, multi-line editor, slider and dial.</P><DIVCLASS="MEDIAOBJECT"><P><DIVCLASS="CAPTION"><P>The widget toolbars.</P></DIV></P></DIV><P>You can also add your own widgets to the palette. If you do so, you will discover BlackAdder has given you a new, and last, button bar.</P></DIV></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><A accesskey="P" href="index.lxp@lxpwrap=c411_252ehtm.htm">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><A accesskey="H" href="index.lxp@lxpwrap=book1_252ehtm">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><A accesskey="N" href="index.lxp@lxpwrap=x545_252ehtm.htm">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Interface</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><A accesskey="U" href="index.lxp@lxpwrap=c411_252ehtm.htm">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Project management</TD></TR></TABLE></DIV></BODY></HTML> </td> </tr> </table> </td> </tr> </table> ⌨️ 快捷键说明
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