添加PaintingDemo

PaintingDemo/PaintingDemo.pro

+TEMPLATE = subdirs
+
+SUBDIRS += basicdrawing

PaintingDemo/basicdrawing/basicdrawing.pro

+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 \
+    renderarea.cpp \
+    widget.cpp
+
+HEADERS += \
+    renderarea.h \
+    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
+
+
+#程序版本
+VERSION = 1.0.0.0
+#程序图标
+#RC_ICONS = app.ico
+#公司名称
+QMAKE_TARGET_COMPANY ="company"
+#程序说明
+QMAKE_TARGET_DESCRIPTION = "test app"
+#版权信息
+QMAKE_TARGET_COPYRIGHT = "Copyright(C) 2017"
+#程序名称
+QMAKE_TARGET_PRODUCT = "app"
+#程序语言
+#0x0800代表和系统当前语言一致
+RC_LANG = 0x0800

PaintingDemo/basicdrawing/main.cpp

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

PaintingDemo/basicdrawing/renderarea.cpp

+#include "renderarea.h"
+
+#include <QDebug>
+#include <QFile>
+#include <QPainter>
+#include <QTextDocument>
+
+RenderArea::RenderArea(QWidget *parent) : QWidget(parent)
+{
+    // 设置背景填充色
+    this->setBackgroundRole(QPalette::Base);
+    this->setAutoFillBackground(true);
+}
+
+void RenderArea::paintEvent(QPaintEvent *event)
+{
+
+}

PaintingDemo/basicdrawing/renderarea.h

+#ifndef RENDERAREA_H
+#define RENDERAREA_H
+
+#include <QWidget>
+
+class RenderArea : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit RenderArea(QWidget *parent = nullptr);
+
+signals:
+
+public slots:
+
+protected:
+    void paintEvent(QPaintEvent *event) override;
+
+    QByteArray m_html;
+};
+
+#endif // RENDERAREA_H

PaintingDemo/basicdrawing/widget.cpp

+#include "widget.h"
+#include "ui_widget.h"
+
+Widget::Widget(QWidget *parent)
+    : QWidget(parent)
+    , ui(new Ui::Widget)
+{
+    ui->setupUi(this);
+}
+
+Widget::~Widget()
+{
+    delete ui;
+}
+
+void Widget::init()
+{
+
+}
+

PaintingDemo/basicdrawing/widget.h

+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class Widget; }
+QT_END_NAMESPACE
+
+class Widget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Widget(QWidget *parent = nullptr);
+    ~Widget();
+
+private:
+    void init();
+
+private:
+    Ui::Widget *ui;
+};
+#endif // WIDGET_H

PaintingDemo/basicdrawing/widget.ui

+<?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>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Widget</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <widget class="RenderArea" name="widget" native="true"/>
+   </item>
+   <item row="0" column="1">
+    <widget class="QDockWidget" name="dockWidget">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>250</width>
+       <height>524287</height>
+      </size>
+     </property>
+     <widget class="QWidget" name="dockWidgetContents">
+      <layout class="QGridLayout" name="gridLayout_3">
+       <item row="0" column="0" colspan="2">
+        <layout class="QGridLayout" name="gridLayout_2">
+         <item row="0" column="0">
+          <widget class="QLabel" name="label">
+           <property name="text">
+            <string>形状：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="0" column="1">
+          <widget class="QComboBox" name="com_shape"/>
+         </item>
+         <item row="1" column="0">
+          <widget class="QLabel" name="label_2">
+           <property name="text">
+            <string>画笔样式：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="1">
+          <widget class="QComboBox" name="comboBox_2"/>
+         </item>
+         <item row="2" column="0">
+          <widget class="QLabel" name="label_4">
+           <property name="text">
+            <string>笔帽样式：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="2" column="1">
+          <widget class="QComboBox" name="comboBox_3"/>
+         </item>
+         <item row="3" column="0">
+          <widget class="QLabel" name="label_5">
+           <property name="text">
+            <string>笔连接样式：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="3" column="1">
+          <widget class="QComboBox" name="comboBox_4"/>
+         </item>
+         <item row="4" column="0">
+          <widget class="QLabel" name="label_6">
+           <property name="text">
+            <string>笔刷样式：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="4" column="1">
+          <widget class="QComboBox" name="comboBox_5"/>
+         </item>
+         <item row="5" column="0">
+          <widget class="QLabel" name="label_3">
+           <property name="text">
+            <string>画笔粗细：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="5" column="1">
+          <widget class="QSpinBox" name="spinBox">
+           <property name="value">
+            <number>1</number>
+           </property>
+          </widget>
+         </item>
+         <item row="6" column="0">
+          <widget class="QLabel" name="label_8">
+           <property name="text">
+            <string>原点水平偏移：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="6" column="1">
+          <widget class="QSlider" name="horizontalSlider_2">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+          </widget>
+         </item>
+         <item row="7" column="0">
+          <widget class="QLabel" name="label_9">
+           <property name="text">
+            <string>原点垂直偏移：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="7" column="1">
+          <widget class="QSlider" name="horizontalSlider_3">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+          </widget>
+         </item>
+         <item row="8" column="0">
+          <widget class="QLabel" name="label_7">
+           <property name="text">
+            <string>缩放：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="8" column="1">
+          <widget class="QSlider" name="horizontalSlider">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+          </widget>
+         </item>
+         <item row="9" column="0">
+          <widget class="QLabel" name="label_10">
+           <property name="text">
+            <string>旋转：</string>
+           </property>
+           <property name="alignment">
+            <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+           </property>
+          </widget>
+         </item>
+         <item row="9" column="1">
+          <widget class="QSlider" name="horizontalSlider_4">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
+       <item row="2" column="1">
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>247</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item row="1" column="0" colspan="2">
+        <widget class="QCheckBox" name="checkBox">
+         <property name="text">
+          <string>抗锯齿</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>RenderArea</class>
+   <extends>QWidget</extends>
+   <header>renderarea.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>