day12 coding Qt案例练习

day12/qtdemo3/main.cpp

@@ -0,0 +1,11 @@
+#include "widget.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    Widget w;
+    w.show();
+    return a.exec();
+}

day12/qtdemo3/qtdemo3.pro

@@ -0,0 +1,34 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked 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 it uses 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
+
+SOURCES += \
+    main.cpp \
+    widget.cpp
+
+HEADERS += \
+    widget.h
+
+FORMS += \
+    widget.ui
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+RESOURCES += \
+    res.qrc

day12/qtdemo3/res.qrc

@@ -0,0 +1,10 @@
+<RCC>
+    <qresource prefix="/images">
+        <file alias="add">resources/add.png</file>
+        <file alias="mario">resources/mario.gif</file>
+        <file alias="open">resources/open.png</file>
+        <file alias="save">resources/save.png</file>
+        <file alias="sunny">resources/Sunny.jpg</file>
+    </qresource>
+    <qresource prefix="/videos"/>
+</RCC>

day12/qtdemo3/widget.cpp

@@ -0,0 +1,99 @@
+#include "widget.h"
+#include "ui_widget.h"
+#include <QPixmap>
+
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent)
+    , ui(new Ui::Widget)
+{
+    n=0;
+    ui->setupUi(this);
+
+    // 设置 imageLable 的图片资源
+    QPixmap pixmap;
+    // : 开头表示引用 Qt 的资源文件
+    pixmap.load(":/images/mario"); // 加载像素图
+    ui->imageLable->resize(200,200);
+    ui->imageLable->setPixmap(pixmap); // 设置 QLable 显示图片
+
+    marioGif = new QMovie(":/images/mario");
+    ui->imageLable->setMovie(marioGif);
+
+}
+
+Widget::~Widget()
+{
+    delete ui;
+}
+
+
+void Widget::on_hotBtn_clicked()
+{
+    ui->whatLable->setText("巧乐兹");
+}
+
+void Widget::on_coldBtn_clicked()
+{
+    ui->whatLable->setText("厚棉被");
+}
+
+void Widget::on_coldBtn_2_clicked()
+{
+
+}
+
+void Widget::on_setTitleIconBtn_clicked()
+{
+    n++;
+    if(n%2==0){
+
+        this->setWindowIcon(QIcon(":/images/save"));
+        this->setWindowTitle("标题被修改了");
+        showMaximized();
+    } else{
+        this->setWindowIcon(QIcon(""));
+        this->setWindowTitle("");
+        showNormal();
+    }
+}
+
+void Widget::on_showImg_pressed()
+{
+    //ui->imageLable->hide();
+    marioGif->start();
+}
+
+void Widget::on_showImg_released()
+{
+    marioGif->stop();
+    //ui->imageLable->show();
+}
+
+void Widget::on_setImgBtn_pressed()
+{
+    QPixmap pixmap2;
+    pixmap2.load(":/images/sunny");
+
+    ui->showImg->setText("");
+    ui->showImg->setIconSize(QSize(200,200));
+    ui->showImg->setIcon(pixmap2);
+}
+
+void Widget::on_setImgBtn_released()
+{
+    ui->showImg->setText("图片运输中");
+    ui->showImg->setIcon(QPixmap());
+}
+
+void Widget::on_setbgBtn_clicked()
+{
+//    setStyleSheet("background-color: red; color: white; font-size: 16px;");
+    //setStyleSheet("background: qlineargradient(x1:0, y1:0, x2:1, y2:0, stop:0 #FF0000, stop:0.17 #FF7F00, stop:0.33 #FFFF00, stop:0.5 #00FF00, stop:0.67 #0000FF, stop:0.83 #4B0082, stop:1 #8B00FF);");
+    //QString styleSheet = "background: qlineargradient(x1:0, y1:0, x2:1, y2:0, stop:0.5 #000000, stop:0 #FF00F0,stop:1 #0F0F0F);";
+    //setStyleSheet(styleSheet);
+    showFullScreen();
+
+
+}
+

day12/qtdemo3/widget.h

@@ -0,0 +1,49 @@
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+#include <QMovie>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class Widget; }
+QT_END_NAMESPACE
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+private:
+        int n;
+
+public:
+    Widget(QWidget *parent = nullptr);
+    ~Widget();
+
+private slots:
+    void on_hotBtn_clicked();
+
+    void on_coldBtn_clicked();
+
+    void on_coldBtn_2_clicked();
+
+    void on_setTitleIconBtn_clicked();
+
+    void on_setImgBtn_clicked();
+
+    void on_showImg_pressed();
+
+    void on_showImg_released();
+
+    void on_setImgBtn_pressed();
+
+    void on_setImgBtn_released();
+
+    void on_setbgBtn_clicked(bool checked);
+
+    void on_setbgBtn_clicked();
+
+private:
+    Ui::Widget *ui;
+    QMovie *marioGif;
+};
+#endif // WIDGET_H

day12/qtdemo3/widget.ui

@@ -0,0 +1,216 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Widget</class>
+ <widget class="QWidget" name="Widget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>654</width>
+    <height>476</height>
+   </rect>
+  </property>
+  <property name="cursor">
+   <cursorShape>OpenHandCursor</cursorShape>
+  </property>
+  <property name="windowTitle">
+   <string>Widget</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="res.qrc">
+    <normaloff>:/images/open</normaloff>:/images/open</iconset>
+  </property>
+  <widget class="QPushButton" name="hotBtn">
+   <property name="geometry">
+    <rect>
+     <x>170</x>
+     <y>8</y>
+     <width>201</width>
+     <height>81</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>ClosedHandCursor</cursorShape>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">font: 36pt &quot;华文隶书&quot;;
+alternate-background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(9, 41, 4, 255), stop:0.085 rgba(2, 79, 0, 255), stop:0.19 rgba(50, 147, 22, 255), stop:0.275 rgba(236, 191, 49, 255), stop:0.39 rgba(243, 61, 34, 255), stop:0.555 rgba(135, 81, 60, 255), stop:0.667 rgba(121, 75, 255, 255), stop:0.825 rgba(164, 255, 244, 255), stop:0.885 rgba(104, 222, 71, 255), stop:1 rgba(93, 128, 0, 255));
+color: rgb(255, 85, 255);</string>
+   </property>
+   <property name="text">
+    <string>热了</string>
+   </property>
+   <property name="iconSize">
+    <size>
+     <width>37</width>
+     <height>55</height>
+    </size>
+   </property>
+  </widget>
+  <widget class="QLabel" name="label">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>110</y>
+     <width>191</width>
+     <height>69</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>WhatsThisCursor</cursorShape>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">background-color: rgb(0, 170, 255);
+font: 18pt &quot;华文琥珀&quot;;</string>
+   </property>
+   <property name="text">
+    <string>出门买啥？</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="whatLable">
+   <property name="geometry">
+    <rect>
+     <x>230</x>
+     <y>120</y>
+     <width>361</width>
+     <height>141</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>SizeBDiagCursor</cursorShape>
+   </property>
+   <property name="layoutDirection">
+    <enum>Qt::RightToLeft</enum>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">background-color: rgb(255, 85, 0);
+color: rgb(255, 255, 255);
+background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(255, 0, 0, 255), stop:0.166 rgba(255, 255, 0, 255), stop:0.333 rgba(0, 255, 0, 255), stop:0.5 rgba(0, 255, 255, 255), stop:0.666 rgba(0, 0, 255, 255), stop:0.833 rgba(255, 0, 255, 255), stop:1 rgba(255, 0, 0, 255));
+font: 72pt &quot;华文彩云&quot;;</string>
+   </property>
+   <property name="text">
+    <string/>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="coldBtn">
+   <property name="geometry">
+    <rect>
+     <x>410</x>
+     <y>10</y>
+     <width>201</width>
+     <height>81</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>CrossCursor</cursorShape>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">font: 36pt &quot;华文隶书&quot;;
+selection-background-color: rgb(255, 170, 127);
+color: rgb(170, 255, 255);</string>
+   </property>
+   <property name="text">
+    <string>冻着了</string>
+   </property>
+  </widget>
+  <widget class="QLabel" name="imageLable">
+   <property name="enabled">
+    <bool>true</bool>
+   </property>
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>260</y>
+     <width>121</width>
+     <height>121</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>WaitCursor</cursorShape>
+   </property>
+   <property name="text">
+    <string/>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="setImgBtn">
+   <property name="geometry">
+    <rect>
+     <x>240</x>
+     <y>300</y>
+     <width>191</width>
+     <height>49</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>SizeHorCursor</cursorShape>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">font: 28pt &quot;华文隶书&quot;;
+</string>
+   </property>
+   <property name="text">
+    <string>设置图片</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="setTitleIconBtn">
+   <property name="geometry">
+    <rect>
+     <x>240</x>
+     <y>400</y>
+     <width>191</width>
+     <height>49</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>UpArrowCursor</cursorShape>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">font: 18pt &quot;华文隶书&quot;;
+</string>
+   </property>
+   <property name="text">
+    <string>标题Icon修改</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="showImg">
+   <property name="geometry">
+    <rect>
+     <x>440</x>
+     <y>280</y>
+     <width>201</width>
+     <height>181</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>ForbiddenCursor</cursorShape>
+   </property>
+   <property name="text">
+    <string>图片正在派送中</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="setbgBtn">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>40</y>
+     <width>141</width>
+     <height>49</height>
+    </rect>
+   </property>
+   <property name="cursor">
+    <cursorShape>UpArrowCursor</cursorShape>
+   </property>
+   <property name="styleSheet">
+    <string notr="true">font: 18pt &quot;华文隶书&quot;;
+</string>
+   </property>
+   <property name="text">
+    <string>背景修改</string>
+   </property>
+  </widget>
+ </widget>
+ <resources>
+  <include location="res.qrc"/>
+ </resources>
+ <connections/>
+</ui>

day12/qtdemo4/main.cpp

@@ -0,0 +1,11 @@
+#include "widget.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    Widget w;
+    w.show();
+    return a.exec();
+}

day12/qtdemo4/qtdemo4.pro

@@ -0,0 +1,34 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked 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 it uses 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
+
+SOURCES += \
+    main.cpp \
+    widget.cpp
+
+HEADERS += \
+    widget.h
+
+FORMS += \
+    widget.ui
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+RESOURCES += \
+    res.qrc

day12/qtdemo4/res.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/movies">
+        <file alias="yanhua">resources/yanhua1.gif</file>
+    </qresource>
+</RCC>

day12/qtdemo4/widget.cpp

@@ -0,0 +1,45 @@
+#include "widget.h"
+#include "ui_widget.h"
+
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent)
+    , ui(new Ui::Widget)
+{
+    ui->setupUi(this);
+
+    // 加载动画资源
+    yanhuagif = new QMovie(":/movies/yanhua");
+
+    srand(time(NULL));
+    randNum = rand() % 10; // 0-9的数
+
+    // 开启定时器, 用于定时换随机数
+    timer = new QTimer();
+    connect(timer,&QTimer::timeout,[&](){
+        randNum = rand() % 10;
+    });
+    timer->start(5*1000); // 5秒
+
+
+}
+
+Widget::~Widget()
+{
+    delete ui;
+}
+
+
+void Widget::on_pushButton_clicked()
+{
+    guessNum = ui->numEdit->text().toInt();
+    qDebug() << "随机数:" << randNum << "输入的数" << guessNum << endl;
+    if(guessNum == randNum){
+        ui->resaultShowLabel->setMovie(yanhuagif);
+        yanhuagif->start();
+    } else {
+        if(yanhuagif->state() == QMovie::Running)
+            yanhuagif->stop();
+        ui->resaultShowLabel->setText("你猜错了, 正确的结果是:"+ QString::number(randNum));
+    }
+}

day12/qtdemo4/widget.h

@@ -0,0 +1,32 @@
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+#include <QMovie>
+#include <QDebug>
+#include <QTimer>
+#include <cstdlib>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class Widget; }
+QT_END_NAMESPACE
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Widget(QWidget *parent = nullptr);
+    ~Widget();
+
+private slots:
+    void on_pushButton_clicked();
+
+private:
+    Ui::Widget *ui;
+    int guessNum = 0;
+    int randNum = 0;
+    QMovie *yanhuagif;
+    QTimer *timer;
+};
+#endif // WIDGET_H

day12/qtdemo4/widget.ui

@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Widget</class>
+ <widget class="QWidget" name="Widget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>500</width>
+    <height>400</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Widget</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="numEdit">
+       <property name="styleSheet">
+        <string notr="true">padding:5px;
+font: 18pt &quot;Agency FB&quot;;</string>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="pushButton">
+       <property name="styleSheet">
+        <string notr="true">font: 18pt &quot;Agency FB&quot;;</string>
+       </property>
+       <property name="text">
+        <string>猜一猜</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="Line" name="line">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QLabel" name="resaultShowLabel">
+       <property name="text">
+        <string>TextLabel</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>