From cf12d7798a01d4be826c3fc7e6621626d4da3523 Mon Sep 17 00:00:00 2001
From: touwoyimuli <touwoyimuli@gmail.com>
Date: Wed, 2 Oct 2019 05:15:40 +0800
Subject: [PATCH] feat: QFileDialog QInputDialog and QMessageDialog
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

QFileDialog    标准文件对话框
QInputDialog   标准输入对话框
QMessageBox    标准消息对话框
QColorDialog   标准颜色对话框
QFontDialog    标准字体对话框
---
 QtQDialogEx/ExDialog.cpp    | 189 ++++++++++++++++++++++++++++++++++++
 QtQDialogEx/ExDialog.h      |  42 ++++++++
 QtQDialogEx/ExDialog.ui     | 181 ++++++++++++++++++++++++++++++++++
 QtQDialogEx/QtQDialogEx.pro |  42 ++++++++
 QtQDialogEx/main.cpp        |  11 +++
 QtQDialogEx/qt.ico          | Bin 0 -> 4286 bytes
 6 files changed, 465 insertions(+)
 create mode 100644 QtQDialogEx/ExDialog.cpp
 create mode 100644 QtQDialogEx/ExDialog.h
 create mode 100644 QtQDialogEx/ExDialog.ui
 create mode 100644 QtQDialogEx/QtQDialogEx.pro
 create mode 100644 QtQDialogEx/main.cpp
 create mode 100644 QtQDialogEx/qt.ico

diff --git a/QtQDialogEx/ExDialog.cpp b/QtQDialogEx/ExDialog.cpp
new file mode 100644
index 0000000..93fd79b
--- /dev/null
+++ b/QtQDialogEx/ExDialog.cpp
@@ -0,0 +1,189 @@
+#include "ExDialog.h"
+#include "ui_ExDialog.h"
+#include <QFileDialog>
+#include <QColorDialog>
+#include <QFontDialog>
+#include <QInputDialog>
+#include <QMessageBox>
+
+ExDialog::ExDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::ExDialog)
+{
+    ui->setupUi(this);
+    setWindowTitle(QObject::tr("文件、颜色、字体、保存、消息、输入等对话框使用"));
+}
+
+ExDialog::~ExDialog()
+{
+    delete ui;
+}
+
+//标准文件对话框QFileDialog+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void ExDialog::on_btnOpenFile_clicked()
+{
+    QString path = QDir::currentPath();                        //获取应用程序当前目录
+    QString fileter = "文本文件(*.txt);;图片文件(*.jpg *.gif);;所有文件(*.*)";
+
+    QString fileNmae = QFileDialog::getOpenFileName(this, "选择一个文件", path, fileter);
+    if (! fileNmae.isEmpty()) {
+        ui->plainTextEdit->appendPlainText(fileNmae);
+    }
+}
+
+void ExDialog::on_btnOpenFiles_clicked()
+{
+    QString path = QDir::currentPath();                        //获取应用程序当前目录
+    QString fileter = "文本文件(*.txt);;图片文件(*.jpg *.gif);;所有文件(*.*)";
+
+    QStringList fileNmaeList = QFileDialog::getOpenFileNames(this, "选择多个文件", path, fileter);
+    for (int i = 0; i < fileNmaeList.count(); i++) {
+        ui->plainTextEdit->appendPlainText(fileNmaeList.at(i));
+    }
+}
+
+void ExDialog::on_btnExistingDir_clicked()
+{
+    QString currPath = QCoreApplication::applicationDirPath(); //获取应用程序当前目录
+    QString path = QFileDialog::getExistingDirectory(this, "选择一个目录【非文件】", currPath, QFileDialog::ShowDirsOnly);   //最后一个参数，表示只显示路径
+
+    if (!path.isEmpty()) {
+        ui->plainTextEdit->appendPlainText(path);
+    }
+}
+
+void ExDialog::on_btnGetColor_clicked()
+{
+    QPalette pal = ui->plainTextEdit->palette();              //获取条调色板
+    QColor initColor = pal.color(QPalette::Text);
+    QColor color = QColorDialog::getColor(initColor, this, "选择颜色");
+
+    if (color.isValid()) {                                    //因为没有.isEmpty(),故而使用.isValid()来判断
+        pal.setColor(QPalette::Text, color);
+        ui->plainTextEdit->setPalette(pal);
+    }
+}
+
+void ExDialog::on_btnGetFont_clicked()
+{
+    QFont initFont = ui->plainTextEdit->font();
+    bool ok = false;
+    QFont font = QFontDialog::getFont(&ok, initFont);
+
+    if (ok)
+        ui->plainTextEdit->setFont(font);
+}
+
+void ExDialog::on_btnSaveFile_clicked()
+{
+    QString path = QDir::currentPath();                        //获取应用程序当前目录
+    QString fileter = "头文件(*.h);;源文件(*.cpp);;所有文件(*.*)";
+    QString fileNmae = QFileDialog::getSaveFileName(this, "保存文件", path, fileter);
+
+    if (!fileNmae.isEmpty())
+        ui->plainTextEdit->appendPlainText(fileNmae);
+}
+
+//标准消息对话框+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void ExDialog::on_btnQuestion_clicked()
+{
+    QMessageBox::StandardButton ret = QMessageBox::question(this, "问题消息对话框", "question对话框的内容",  QMessageBox::Yes | QMessageBox::No | QMessageBox::Close, QMessageBox::NoButton);
+
+    switch (ret) {
+    case QMessageBox::Yes: {
+        ui->plainTextEdit->appendPlainText("QMessageBox::yes 按钮被选中");
+        break;
+    }
+    case QMessageBox::No: {
+        ui->plainTextEdit->appendPlainText("QMessageBox::No 按钮被选中");
+        break;
+    }
+    case QMessageBox::Close: {
+        ui->plainTextEdit->appendPlainText("QMessageBox::Close 按钮被选中");
+        break;
+    }
+    default: {
+        ui->plainTextEdit->appendPlainText("这是 switch 的default 的选项");
+        break;
+    }
+    }
+}
+
+void ExDialog::on_btnInformation_clicked()
+{
+    QMessageBox::information(this, "信息消息对话框", "information对话框的内容", QMessageBox::Ok, QMessageBox::NoButton);
+}
+
+void ExDialog::on_btnWarning_clicked()
+{
+    QMessageBox::warning(this, "警告消息对话框", "warning对话框的内容", QMessageBox::Ok, QMessageBox::NoButton);
+}
+
+void ExDialog::on_btnCritical_clicked()
+{
+    QMessageBox::critical(this, "危机消息对话框", "critical对话框的内容", QMessageBox::Ok, QMessageBox::NoButton);
+}
+
+void ExDialog::on_btnAbout_clicked()
+{
+    QMessageBox::about(this, "关于消息对话框", "abou 作者: 投我以木李，报之以琼玖");
+}
+
+void ExDialog::on_btnAboutQt_clicked()
+{
+    QMessageBox::aboutQt(this, "关于Qt消息对话框");
+}
+
+//标准输入对话框QInputDialog+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void ExDialog::on_btnGetString_clicked()
+{
+    bool ok = false;
+    QString text = QInputDialog::getText(this, "输入文字对话框", "请输入一个字符串", QLineEdit::Normal, "默认输入的字符串", &ok);
+
+    if (ok && !text.isEmpty())
+        ui->plainTextEdit->appendPlainText(text);
+}
+
+void ExDialog::on_btnGetItem_clicked()
+{
+    QStringList list;
+    list<<"2019-10-02"<<"04:28"<<"在武汉的卧室"<<"敲代码"<<"这会没有困意";
+
+    int index = 0;
+    bool editable = true;   //ComboBox是否可编辑
+    bool ok = false;
+    QString text = QInputDialog::getItem(this, "输入item对话框", "请选择一个item", list, index, editable, &ok);
+
+    if (ok && !text.isEmpty())
+        ui->plainTextEdit->appendPlainText(text);
+}
+
+void ExDialog::on_btnInt_clicked()
+{
+    int min = 0;
+    int max = 100;
+    int stepVal = 3;
+    int size = ui->plainTextEdit->font().pointSize();
+    bool ok = false;
+    int val = QInputDialog::getInt(this, "输入整数对话框", "请输入一个整数改变字体大小", size, min, max, stepVal, &ok);
+
+    if (ok) {
+        QFont font = ui->plainTextEdit->font();
+        font.setPointSize(val);
+        ui->plainTextEdit->setFont(font);
+        ui->plainTextEdit->appendPlainText("字体大小已经被设置为:" + QString::number(val));
+    }
+}
+
+void ExDialog::on_btnDouble_clicked()
+{
+    int min = 0;
+    int max = 100;
+    int d = 2;                 //小数点的位数
+    double val = 3.1415;
+    bool ok = false;
+    double ret = QInputDialog::getDouble(this, "输入浮点数对话框", "请输入一个整数改变字体大小", d, min, max, val, &ok);
+
+    if (ok)
+        ui->plainTextEdit->appendPlainText("浮点数大小为:" + QString::number(ret, 'f', 4));
+}
diff --git a/QtQDialogEx/ExDialog.h b/QtQDialogEx/ExDialog.h
new file mode 100644
index 0000000..097ee8c
--- /dev/null
+++ b/QtQDialogEx/ExDialog.h
@@ -0,0 +1,42 @@
+#ifndef EXDIALOG_H
+#define EXDIALOG_H
+
+#include <QDialog>
+
+namespace Ui {
+class ExDialog;
+}
+
+class ExDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit ExDialog(QWidget *parent = nullptr);
+    ~ExDialog();
+
+private slots:
+    void on_btnOpenFile_clicked();        //打开一个文件
+    void on_btnOpenFiles_clicked();       //打开多个文件
+    void on_btnExistingDir_clicked();     //选择已有目录
+    void on_btnGetColor_clicked();        //选择颜色
+    void on_btnGetFont_clicked();         //选择字体
+    void on_btnSaveFile_clicked();        //保存文件
+
+    void on_btnQuestion_clicked();
+    void on_btnInformation_clicked();
+    void on_btnWarning_clicked();
+    void on_btnCritical_clicked();
+    void on_btnAbout_clicked();
+    void on_btnAboutQt_clicked();
+
+    void on_btnGetString_clicked();       //输入字符串
+    void on_btnGetItem_clicked();         //item选择输入
+    void on_btnInt_clicked();             //输入整数
+    void on_btnDouble_clicked();          //输入浮点数
+
+private:
+    Ui::ExDialog *ui;
+};
+
+#endif // EXDIALOG_H
diff --git a/QtQDialogEx/ExDialog.ui b/QtQDialogEx/ExDialog.ui
new file mode 100644
index 0000000..24c8559
--- /dev/null
+++ b/QtQDialogEx/ExDialog.ui
@@ -0,0 +1,181 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExDialog</class>
+ <widget class="QDialog" name="ExDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>663</width>
+    <height>341</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>ExDialog</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <item>
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>标准对话框：</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="2" column="0">
+       <widget class="QPushButton" name="btnOpenFiles">
+        <property name="text">
+         <string>打开多个文件</string>
+        </property>
+       </widget>
+      </item>
+      <item row="8" column="0" colspan="3">
+       <widget class="Line" name="line_2">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+       </widget>
+      </item>
+      <item row="11" column="0">
+       <widget class="QPushButton" name="btnGetString">
+        <property name="text">
+         <string>输入字符串</string>
+        </property>
+       </widget>
+      </item>
+      <item row="11" column="2">
+       <widget class="QPushButton" name="btnGetItem">
+        <property name="text">
+         <string>item选择输入</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QLabel" name="labMsg">
+        <property name="text">
+         <string>标准消息框：</string>
+        </property>
+       </widget>
+      </item>
+      <item row="12" column="0">
+       <widget class="QPushButton" name="btnInt">
+        <property name="text">
+         <string>输入整数</string>
+        </property>
+       </widget>
+      </item>
+      <item row="12" column="2">
+       <widget class="QPushButton" name="btnDouble">
+        <property name="text">
+         <string>输入浮点数</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="labFile">
+        <property name="text">
+         <string>文件对话框：</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="0">
+       <widget class="QPushButton" name="btnExistingDir">
+        <property name="text">
+         <string>选择已有目录</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1" rowspan="7">
+       <widget class="Line" name="line">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="0">
+       <widget class="QPushButton" name="btnGetFont">
+        <property name="text">
+         <string>选择字体</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="0">
+       <widget class="QPushButton" name="btnGetColor">
+        <property name="text">
+         <string>选择颜色</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QPushButton" name="btnQuestion">
+        <property name="text">
+         <string>question</string>
+        </property>
+       </widget>
+      </item>
+      <item row="3" column="2">
+       <widget class="QPushButton" name="btnWarning">
+        <property name="text">
+         <string>warning</string>
+        </property>
+       </widget>
+      </item>
+      <item row="4" column="2">
+       <widget class="QPushButton" name="btnCritical">
+        <property name="text">
+         <string>critical</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="2">
+       <widget class="QPushButton" name="btnInformation">
+        <property name="text">
+         <string>information</string>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="2">
+       <widget class="QPushButton" name="btnAbout">
+        <property name="text">
+         <string>about</string>
+        </property>
+       </widget>
+      </item>
+      <item row="6" column="2">
+       <widget class="QPushButton" name="btnAboutQt">
+        <property name="text">
+         <string>aboutQt</string>
+        </property>
+       </widget>
+      </item>
+      <item row="6" column="0">
+       <widget class="QPushButton" name="btnSaveFile">
+        <property name="text">
+         <string>保存文件</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QPushButton" name="btnOpenFile">
+        <property name="text">
+         <string>打开一个文件</string>
+        </property>
+       </widget>
+      </item>
+      <item row="10" column="0" colspan="3">
+       <widget class="QLabel" name="labInput">
+        <property name="text">
+         <string>标准输入对话框QInputDialog:</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QPlainTextEdit" name="plainTextEdit"/>
+   </item>
+  </layout>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/QtQDialogEx/QtQDialogEx.pro b/QtQDialogEx/QtQDialogEx.pro
new file mode 100644
index 0000000..b3659ce
--- /dev/null
+++ b/QtQDialogEx/QtQDialogEx.pro
@@ -0,0 +1,42 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-10-01T15:57:01
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = QtQDialogEx
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+CONFIG += c++11
+
+SOURCES += \
+        main.cpp \
+        ExDialog.cpp
+
+HEADERS += \
+        ExDialog.h
+
+FORMS += \
+        ExDialog.ui
+
+RC_ICONS += qt.ico
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
diff --git a/QtQDialogEx/main.cpp b/QtQDialogEx/main.cpp
new file mode 100644
index 0000000..3ad5fd0
--- /dev/null
+++ b/QtQDialogEx/main.cpp
@@ -0,0 +1,11 @@
+#include "ExDialog.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    ExDialog w;
+    w.show();
+
+    return a.exec();
+}
diff --git a/QtQDialogEx/qt.ico b/QtQDialogEx/qt.ico
new file mode 100644
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