添加一个dragdrop例程

test/testdroptoimageeffect/AppRoot/skin/default.qss

@@ -0,0 +1,24 @@
+/*spinbox 抬起样式*/
+QTimeEdit::up-button,QDoubleSpinBox::up-button,QSpinBox::up-button {
+    subcontrol-origin:border;
+    subcontrol-position:right;
+    width: 12px;
+}
+
+QTimeEdit::down-button,QDoubleSpinBox::down-button,QSpinBox::down-button {
+    subcontrol-origin:border;
+    subcontrol-position:left;
+    width: 12px;
+}
+
+/*按钮按下样式*/
+QTimeEdit::up-button:pressed,QDoubleSpinBox::up-button:pressed,QSpinBox::up-button:pressed{
+    subcontrol-origin:border;
+    subcontrol-position:right;
+    width: 12px;
+}
+
+QTimeEdit::down-button:pressed,QDoubleSpinBox::down-button:pressed,QSpinBox::down-button:pressed,QSpinBox::down-button:pressed{
+    subcontrol-position:left;
+    width: 12px;
+}

test/testdroptoimageeffect/android/AndroidManifest.xml

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+<?xml version="1.0"?>
+<manifest package="org.qtproject.example.testdroptoimageeffect" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="1.0" android:versionCode="1" android:installLocation="auto">
+    <application android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:label="testdroptoimageeffect" android:icon="@drawable/icon">
+        <activity android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation" android:name="org.qtproject.qt5.android.bindings.QtActivity" android:label="testdroptoimageeffect" android:screenOrientation="unspecified" android:launchMode="singleTop">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+
+            <!-- Application arguments -->
+            <!-- meta-data android:name="android.app.arguments" android:value="arg1 arg2 arg3"/ -->
+            <!-- Application arguments -->
+
+            <meta-data android:name="android.app.lib_name" android:value="testdroptoimageeffect"/>
+            <meta-data android:name="android.app.qt_sources_resource_id" android:resource="@array/qt_sources"/>
+            <meta-data android:name="android.app.repository" android:value="default"/>
+            <meta-data android:name="android.app.qt_libs_resource_id" android:resource="@array/qt_libs"/>
+            <meta-data android:name="android.app.bundled_libs_resource_id" android:resource="@array/bundled_libs"/>
+            <!-- Deploy Qt libs as part of package -->
+            <meta-data android:name="android.app.bundle_local_qt_libs" android:value="1"/>
+            <meta-data android:name="android.app.bundled_in_lib_resource_id" android:resource="@array/bundled_in_lib"/>
+            <meta-data android:name="android.app.bundled_in_assets_resource_id" android:resource="@array/bundled_in_assets"/>
+            <!-- Run with local libs -->
+            <meta-data android:name="android.app.use_local_qt_libs" android:value="1"/>
+            <meta-data android:name="android.app.libs_prefix" android:value="/data/local/tmp/qt/"/>
+            <meta-data android:name="android.app.load_local_libs" android:value="plugins/platforms/android/libqtforandroid.so"/>
+            <meta-data android:name="android.app.load_local_jars" android:value="jar/QtAndroid.jar:jar/QtAndroid-bundled.jar"/>
+            <meta-data android:name="android.app.static_init_classes" android:value=""/>
+            <!--  Messages maps -->
+            <meta-data android:value="@string/ministro_not_found_msg" android:name="android.app.ministro_not_found_msg"/>
+            <meta-data android:value="@string/ministro_needed_msg" android:name="android.app.ministro_needed_msg"/>
+            <meta-data android:value="@string/fatal_error_msg" android:name="android.app.fatal_error_msg"/>
+            <!--  Messages maps -->
+
+            <!-- Splash screen -->
+            <!-- meta-data android:name="android.app.splash_screen_drawable" android:resource="@drawable/logo"/ -->
+            <!-- meta-data android:name="android.app.splash_screen_sticky" android:value="true"/ -->
+            <!-- Splash screen -->
+
+            <!-- Background running -->
+            <!-- Warning: changing this value to true may cause unexpected crashes if the
+                          application still try to draw after
+                          "applicationStateChanged(Qt::ApplicationSuspended)"
+                          signal is sent! -->
+            <meta-data android:name="android.app.background_running" android:value="false"/>
+            <!-- Background running -->
+
+            <!-- auto screen scale factor -->
+            <meta-data android:name="android.app.auto_screen_scale_factor" android:value="false"/>
+            <!-- auto screen scale factor -->
+
+            <!-- extract android style -->
+            <!-- available android:values :
+                * full - useful QWidget & Quick Controls 1 apps
+                * minimal - useful for Quick Controls 2 apps, it is much faster than "full"
+                * none - useful for apps that don't use any of the above Qt modules
+                -->
+            <meta-data android:name="android.app.extract_android_style" android:value="full"/>
+            <!-- extract android style -->
+    </activity>
+
+    <!-- For adding service(s) please check: https://wiki.qt.io/AndroidServices -->
+
+    </application>
+
+    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="16"/>
+    <supports-screens android:largeScreens="true" android:normalScreens="true" android:anyDensity="true" android:smallScreens="true"/>
+
+    <!-- The following comment will be replaced upon deployment with default permissions based on the dependencies of the application.
+         Remove the comment if you do not require these default permissions. -->
+
+
+
+
+    <!-- The following comment will be replaced upon deployment with default features based on the dependencies of the application.
+         Remove the comment if you do not require these default features. -->
+
+
+
+
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+<!-- %%INSERT_PERMISSIONS -->
+    <!-- %%INSERT_FEATURES -->
+<uses-permission android:name="android.permission.ACCESS_CHECKIN_PROPERTIES"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
+<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
+</manifest>

test/testdroptoimageeffect/main.cpp

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

test/testdroptoimageeffect/mainwindow.cpp

@@ -0,0 +1,25 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include <qqtbodydroptoimageeffect.h>
+#include <qqtframe.h>
+
+MainWindow::MainWindow ( QWidget* parent ) :
+    QMainWindow ( parent ),
+    ui ( new Ui::MainWindow )
+{
+    ui->setupUi ( this );
+
+    ui->widget->setPixmap ( conf_root ( "logo.png" ) );
+    ui->widget->setAcceptDrops ( true );
+    ui->widget_2->setAcceptDrops ( true );
+
+    QQtBodyDropImageEffect* effect = new QQtBodyDropImageEffect ( this );
+    ui->widget->installEventFilter ( effect );
+    ui->widget_2->installEventFilter ( effect );
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}

test/testdroptoimageeffect/mainwindow.h

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+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+};
+
+#endif // MAINWINDOW_H

test/testdroptoimageeffect/mainwindow.ui

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+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>632</width>
+    <height>387</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>testdroptoimageeffect</string>
+  </property>
+  <widget class="QWidget" name="centralWidget">
+   <widget class="QQtWidget" name="widget" native="true">
+    <property name="geometry">
+     <rect>
+      <x>70</x>
+      <y>70</y>
+      <width>120</width>
+      <height>80</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QQtWidget" name="widget_2" native="true">
+    <property name="geometry">
+     <rect>
+      <x>280</x>
+      <y>70</y>
+      <width>120</width>
+      <height>80</height>
+     </rect>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QMenuBar" name="menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>632</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QToolBar" name="mainToolBar">
+   <attribute name="toolBarArea">
+    <enum>TopToolBarArea</enum>
+   </attribute>
+   <attribute name="toolBarBreak">
+    <bool>false</bool>
+   </attribute>
+  </widget>
+  <widget class="QStatusBar" name="statusBar"/>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <customwidgets>
+  <customwidget>
+   <class>QQtWidget</class>
+   <extends>QWidget</extends>
+   <header location="global">qqtwidget.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>

test/testdroptoimageeffect/qqtbodydroptoimageeffect.cpp

@@ -0,0 +1,140 @@
+#include <qqtbodydroptoimageeffect.h>
+
+#include <QEvent>
+#include <QPainter>
+#include <QWidget>
+
+#include <qqtcore.h>
+
+QQtBodyDropImageEffect::QQtBodyDropImageEffect ( QObject* parent ) : QObject ( parent )
+{
+
+}
+
+QQtBodyDropImageEffect::~QQtBodyDropImageEffect() {}
+
+
+bool QQtBodyDropImageEffect::eventFilter ( QObject* watched, QEvent* event )
+{
+    if ( !watched->inherits ( "QWidget" ) )
+        return QObject::eventFilter ( watched, event );
+
+    //修复鼠标穿透。鼠标穿透没有效果
+    bool atti = ( qobject_cast<QWidget*> ( watched ) )->testAttribute ( Qt::WA_TransparentForMouseEvents );
+    if ( atti )
+        return QObject::eventFilter ( watched, event );
+
+    if ( event->type() == QEvent::Paint )
+        return QObject::eventFilter ( watched, event );
+
+    if ( event->type() == QEvent::MouseMove )
+        return QObject::eventFilter ( watched, event );
+
+    static int i = 0;
+    p2line() << i++ << watched->objectName() << event->type() ;
+
+    switch ( event->type() )
+    {
+        case QEvent::DragEnter:
+        {
+            QWidget* target = qobject_cast<QWidget*> ( watched );
+            QWidget& w = *target;
+
+            QRect rectMustIn = QRect ( w.mapToGlobal ( w.rect().topLeft() ), w.mapToGlobal ( w.rect().bottomRight() ) );//srcR0
+            QMargins m_margins = w.contentsMargins();
+#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
+            QRect rectMustNotIn = rectMustIn.adjusted ( m_margins.left(), m_margins.top(), m_margins.right(), m_margins.bottom() );
+#else
+            QRect rectMustNotIn = rectMustIn.marginsRemoved ( m_margins );
+#endif
+            QPoint cursorPos = QCursor::pos();//globalPos
+
+            //在content里面才能响应 [比较的时候不放大坐标，调试出来的]
+            if ( rectMustIn.contains ( cursorPos ) && rectMustNotIn.contains ( cursorPos ) )
+            {
+                QDragEnterEvent* e = ( QDragEnterEvent* ) event;
+                p2line() << e->answerRect();
+                //p2line() << e->dropAction();
+                p2line() << e->spontaneous();
+                p2line() << e->source()->objectName();
+                p2line() << e->mimeData()->formats() << e->mimeData()->urls();
+                p2line() << e->possibleActions() << e->proposedAction();
+            }
+
+            event->accept();
+            return false;
+        }
+        break;
+        case QEvent::DragLeave:
+        {
+            QWidget* target = qobject_cast<QWidget*> ( watched );
+            QWidget& w = *target;
+
+            if ( !target->isActiveWindow() )
+            {
+                event->ignore();
+                return false;
+            }
+
+            QRect rectMustIn = QRect ( w.mapToGlobal ( w.rect().topLeft() ), w.mapToGlobal ( w.rect().bottomRight() ) );//srcR0
+            QMargins m_margins = w.contentsMargins();
+#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
+            QRect rectMustNotIn = rectMustIn.adjusted ( m_margins.left(), m_margins.top(), m_margins.right(), m_margins.bottom() );
+#else
+            QRect rectMustNotIn = rectMustIn.marginsRemoved ( m_margins );
+#endif
+            QPoint cursorPos = QCursor::pos();//globalPos
+
+            //在content里面才能响应 [比较的时候不放大坐标，调试出来的]
+            if ( rectMustIn.contains ( cursorPos ) && rectMustNotIn.contains ( cursorPos ) )
+            {
+                QDragLeaveEvent* e = ( QDragLeaveEvent* ) event;
+                p2line() << e->spontaneous();
+            }
+
+            event->accept();
+            return false;
+        }
+        break;
+        case QEvent::Drop:
+        {
+            QWidget* target = qobject_cast<QWidget*> ( watched );
+            QWidget& w = *target;
+
+            if ( !target->isActiveWindow() )
+            {
+                event->ignore();
+                return false;
+            }
+
+            QRect rectMustIn = QRect ( w.mapToGlobal ( w.rect().topLeft() ), w.mapToGlobal ( w.rect().bottomRight() ) );//srcR0
+            QMargins m_margins = w.contentsMargins();
+#if QT_VERSION < QT_VERSION_CHECK(5,0,0)
+            QRect rectMustNotIn = rectMustIn.adjusted ( m_margins.left(), m_margins.top(), m_margins.right(), m_margins.bottom() );
+#else
+            QRect rectMustNotIn = rectMustIn.marginsRemoved ( m_margins );
+#endif
+            QPoint cursorPos = QCursor::pos();//globalPos
+
+            //在content里面才能响应 [比较的时候不放大坐标，调试出来的]
+            if ( rectMustIn.contains ( cursorPos ) && rectMustNotIn.contains ( cursorPos ) )
+            {
+                QDropEvent* e = ( QDropEvent* ) event;
+                p2line();
+                //p2line() << e->dropAction();
+                p2line() << e->spontaneous();
+                p2line() << e->source()->objectName();
+                p2line() << e->mimeData()->formats() << e->mimeData()->urls();
+                p2line() << e->possibleActions() << e->proposedAction();
+            }
+
+            event->accept();
+            return false;
+        }
+        break;
+        default:
+            break;
+    }
+
+    return QObject::eventFilter ( watched, event );
+}

test/testdroptoimageeffect/qqtbodydroptoimageeffect.h

@@ -0,0 +1,18 @@
+#ifndef QQTBODYDROPIMAGEEFFECT_H
+#define QQTBODYDROPIMAGEEFFECT_H
+
+#include <QObject>
+
+class QQtBodyDropImageEffect : public QObject
+{
+    Q_OBJECT
+public:
+    QQtBodyDropImageEffect ( QObject* parent = 0 );
+    virtual ~QQtBodyDropImageEffect();
+
+    // QObject interface
+public:
+    virtual bool eventFilter ( QObject* watched, QEvent* event ) override;
+};
+
+#endif // QQTBODYDROPIMAGEEFFECT_H

test/testdroptoimageeffect/testdroptoimageeffect.pro

@@ -0,0 +1,69 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2018-10-06T08:16:10
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = testdroptoimageeffect
+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
+include($${PWD}/../../multi-link/add_base_manager.pri)
+
+SOURCES += \
+        main.cpp \
+        mainwindow.cpp
+
+HEADERS += \
+        mainwindow.h
+
+FORMS += \
+        mainwindow.ui
+
+add_file(qqtbodydroptoimageeffect.h)
+add_file(qqtbodydroptoimageeffect.cpp)
+HEADERS += qqtbodydroptoimageeffect.h
+SOURCES += qqtbodydroptoimageeffect.cpp
+
+#-------------------------------------------------
+#用户工程配置
+#-------------------------------------------------
+add_version(1,0,0,0)
+add_deploy()
+add_deploy_config($${PWD}/AppRoot)
+add_dependent_manager(QQt)
+system(touch main.cpp)
+
+#-------------------------------------------------
+#用户工程配置
+#-------------------------------------------------
+equals(QSYS_PRIVATE, macOS) {
+    CONFIG += app_bundle
+}
+
+contains(QSYS_PRIVATE, Android|AndroidX86) {
+    CONFIG += mobility
+    MOBILITY =
+    DISTFILES += \
+        android/AndroidManifest.xml
+
+    ANDROID_PACKAGE_SOURCE_DIR = $${PWD}/android
+}
+
+message ($${TARGET} config $${CONFIG})
+message ($${TARGET} DEFINE $${DEFINES})
+message ($${TARGET} prelink $${QMAKE_PRE_LINK})
+message ($${TARGET} postlink $${QMAKE_POST_LINK})