Subclass Qmainwindows, add menu bars and toolbars, and add icons

Mymainwindow.cpp

#include   "mymainwindow.h" #include   "ui_mymainwindow.h"//#include  <QMenuBar>   &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;//uses a forward declaration that does not use the form contained in the header file, mainly for faster compilation class qmenubar;// The forward declaration of the class Mymainwindow::mymainwindow (Qwidget *parent)  :    qmainwindow (parent),     ui (New ui::mymainwindow) {    ui->setupui (this);     openaction = new qaction (tr ("&open"), this);     Openaction->setshortcut (Qkeysequence::open);//shortcut keys for actions, such as: Open shortcut  ctrl+o (qt qkeysequence definition)      openaction->setstatustip (tr ("Open a file"));//Prompt statement to add status bar          file = menubar ()->addmenu (tr ("&file"));     file- >addaction (openaction),     toolbar = addtoolbar (tr ("&File"));     toolbar->addaction (Openaction);} Mymainwindow::~mymainwindow () {    delete ui;}

After running,

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Add icon: 1, the first to use QT resource files. Right-click on the Qtcreator project, select New File ..., and then select Resource file.

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2, then click Choose, Name, choose a good location, next, complete can. For ease of use, I will put this file in the root directory, it is recommended that after careful planning of the file, built in a dedicated rsources folder. When finished, a. qrc file is generated, and QRC is actually the abbreviation for QT Recource collection.

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3, Click the Add button, first select Add prefix, and then change the generated/new/prefix to/. This is prefix is the prefix that you need to provide when you use the icon later, starting with/. After you have added prefix, add an icon to the project file, select Add File, and select the icon. Save the QRC file after this is complete.

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How do you see the path of the picture? As you can see, the resource File view of QT uses the tree structure, the root is/, the leaf node is the picture position, joins together is the path. The path to this picture, for example, is/resource/open.png.

4, add code  

class qicon;  //class   ... mymainwindow:: Mymainwindow (Qwidget *parent)  :    qmainwindow (parent),     UI (New ui::mymainwindow) {    ui->setupui (this);     openaction  = new qaction (tr ("&open"), this);     openaction->setshortcut ( Qkeysequence::open);//shortcut keys for actions, for example: Open shortcut  ctrl+o (qkeysequence definition of QT)     openAction-> Setstatustip (tr ("Open a file"));//Add a prompt statement for the status bar        openaction- >seticon (Qicon (":/resource/open.png"));//Add this code and add an icon         file  = menubar ()->addmenu (tr ("&file"));     file->addaction (openAction);     toolbar = addtoolbar (tr ("&file"));    toolbar-> Addaction (openaction);} 

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This article is from the "11907685" blog, please be sure to keep this source http://11917685.blog.51cto.com/11907685/1892014

Subclass Qmainwindows, add menu bars and toolbars, and add icons