feat(ci): build and use kimageformats plugins

CMakeLists.txt

@@ -6,7 +6,7 @@ include (GNUInstallDirs)
 
 set (CMAKE_AUTOMOC ON)
 set (CMAKE_AUTORCC ON)
-set (QT_MINIMUM_VERSION "5.7.1")
+set (QT_MINIMUM_VERSION "5.10")
 
 find_package(Qt5 ${QT_MINIMUM_VERSION} CONFIG REQUIRED Widgets Svg LinguistTools)
 

appveyor.yml

@@ -1,27 +1,49 @@
 environment:
+  CMAKE_INSTALL_ROOT: C:\projects\cmake
   matrix:
-    - build_name: mingw73_32_qt5_12_5
-      QTPATH: C:\Qt\5.12.5\mingw73_32
+    - build_name: mingw73_32_qt5_12_6
+      QTPATH: C:\Qt\5.12.6\mingw73_32
       MINGW32: C:\Qt\Tools\mingw730_32
-#    - build_name: msvc2017_64
-#      QTPATH: C:\Qt\5.11.2\msvc2017_64
-#      MINGW32: C:\Qt\Tools\mingw530_32
 
 install:
+  - mkdir %CMAKE_INSTALL_ROOT%
   - cd %APPVEYOR_BUILD_FOLDER%
   - git submodule update --init --recursive
-  - set PATH=%PATH%;%QTPATH%\bin;%MINGW32%\bin
+  - set PATH=%PATH%;%CMAKE_INSTALL_ROOT%;%QTPATH%\bin;%MINGW32%\bin
 
 build_script:
+# prepare
+  - mkdir 3rdparty
+  - cinst ninja
+# install ECM so we can build KImageFormats
+  - cd 3rdparty
+  - git clone -q git://anongit.kde.org/extra-cmake-modules.git
+  - cd extra-cmake-modules
+  - cmake -G "Ninja" . -DCMAKE_INSTALL_PREFIX=%CMAKE_INSTALL_ROOT%
+  - cmake --build .
+  - cmake --build . --target install
+  - cd %APPVEYOR_BUILD_FOLDER%
+# install KImageFormats
+  - cd 3rdparty
+  - git clone git://anongit.kde.org/kimageformats.git
+  - cd kimageformats
   - mkdir build
   - cd build
-  - cmake -G "Unix Makefiles" -DCMAKE_MAKE_PROGRAM=mingw32-make -DCMAKE_INSTALL_PREFIX='%cd%' ..\
+  - cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS_RELEASE="-s" -DCMAKE_MAKE_PROGRAM=mingw32-make -DQT_PLUGIN_INSTALL_DIR=%QTPATH%\plugins
+  - cmake --build . --config Release
+  - cmake --build . --config Release --target install
+  - cd %APPVEYOR_BUILD_FOLDER%
+# finally...
+  - mkdir build
+  - cd build
+  - cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_MAKE_PROGRAM=mingw32-make -DCMAKE_INSTALL_PREFIX='%cd%'
   - mingw32-make
   - mingw32-make install
 # fixme: I don't know how to NOT make the binary installed to the ./bin/ folder...
   - cd bin
-  - windeployqt --no-quick-import --no-translations --no-opengl-sw --no-angle --no-system-d3d-compiler --release .\ppic.exe
-  - tree
+  - windeployqt --verbose=2 --no-quick-import --no-translations --no-opengl-sw --no-angle --no-system-d3d-compiler --release .\ppic.exe
+# for debug..
+  - tree /f
 
 artifacts:
   - path: build\bin

graphicsscene.cpp

@@ -60,6 +60,17 @@ void GraphicsScene::showGif(const QString &filepath)
     this->setSceneRect(m_theThing->boundingRect());
 }
 
+bool GraphicsScene::trySetTransformationMode(Qt::TransformationMode mode)
+{
+    QGraphicsPixmapItem * pixmapItem = qgraphicsitem_cast<QGraphicsPixmapItem *>(m_theThing);
+    if (pixmapItem) {
+        pixmapItem->setTransformationMode(mode);
+        return true;
+    }
+
+    return false;
+}
+
 QPixmap GraphicsScene::renderToPixmap()
 {
     QPixmap pixmap(sceneRect().toRect().size());

graphicsscene.h

@@ -15,6 +15,8 @@ public:
     void showSvg(const QString &filepath);
     void showGif(const QString &filepath);
 
+    bool trySetTransformationMode(Qt::TransformationMode mode);
+
     QPixmap renderToPixmap();
 
 private:

graphicsview.cpp

@@ -39,8 +39,10 @@ void GraphicsView::showFileFromUrl(const QUrl &url, bool doRequestGallery)
         QImageReader imageReader(filePath);
         imageReader.setAutoTransform(true);
         imageReader.setDecideFormatFromContent(true);
-        QImage::Format imageFormat = imageReader.imageFormat();
-        if (imageFormat == QImage::Format_Invalid) {
+        // Since if the image format / plugin does not support this feature, imageFormat() will returns an invalid format.
+        // So we cannot use imageFormat() and check if it returns QImage::Format_Invalid to detect if we support the file.
+        // QImage::Format imageFormat = imageReader.imageFormat();
+        if (imageReader.format().isEmpty()) {
             showText(tr("File is not a valid image"));
         } else {
             showImage(QPixmap::fromImageReader(&imageReader));
@@ -117,6 +119,7 @@ void GraphicsView::zoomView(qreal scaleFactor)
 {
     m_enableFitInView = false;
     scale(scaleFactor, scaleFactor);
+    applyTransformationModeByScaleFactor();
     emit navigatorViewRequired(!isThingSmallerThanWindowWith(transform()), m_rotateAngle);
 }
 
@@ -136,6 +139,7 @@ void GraphicsView::rotateView(qreal rotateAngel)
 void GraphicsView::fitInView(const QRectF &rect, Qt::AspectRatioMode aspectRadioMode)
 {
     QGraphicsView::fitInView(rect, aspectRadioMode);
+    applyTransformationModeByScaleFactor();
 }
 
 void GraphicsView::checkAndDoFitInView()
@@ -213,9 +217,9 @@ void GraphicsView::dragEnterEvent(QDragEnterEvent *event)
     } else {
         event->ignore();
     }
-    qDebug() << event->mimeData() << "Drag Enter Event"
-             << event->mimeData()->hasUrls() << event->mimeData()->hasImage()
-             << event->mimeData()->formats() << event->mimeData()->hasFormat("text/uri-list");
+//    qDebug() << event->mimeData() << "Drag Enter Event"
+//             << event->mimeData()->hasUrls() << event->mimeData()->hasImage()
+//             << event->mimeData()->formats() << event->mimeData()->hasFormat("text/uri-list");
 
     return QGraphicsView::dragEnterEvent(event);
 }
@@ -285,9 +289,9 @@ void GraphicsView::setCheckerboardEnabled(bool enabled)
     if (m_checkerboardEnabled) {
         // Prepare background check-board pattern
         QPixmap tilePixmap(0x20, 0x20);
-        tilePixmap.fill(QColor(35, 35, 35, 110));
+        tilePixmap.fill(QColor(35, 35, 35, 170));
         QPainter tilePainter(&tilePixmap);
-        QColor color(40, 40, 40, 110);
+        QColor color(45, 45, 45, 170);
         tilePainter.fillRect(0, 0, 0x10, 0x10, color);
         tilePainter.fillRect(0x10, 0x10, 0x10, 0x10, color);
         tilePainter.end();
@@ -298,6 +302,15 @@ void GraphicsView::setCheckerboardEnabled(bool enabled)
     }
 }
 
+void GraphicsView::applyTransformationModeByScaleFactor()
+{
+    if (this->scaleFactor() < 1) {
+        scene()->trySetTransformationMode(Qt::SmoothTransformation);
+    } else {
+        scene()->trySetTransformationMode(Qt::FastTransformation);
+    }
+}
+
 void GraphicsView::resetWithScaleAndRotate(qreal scaleFactor, qreal rotateAngle)
 {
     QGraphicsView::resetTransform();

graphicsview.h

@@ -54,6 +54,7 @@ private:
     bool isThingSmallerThanWindowWith(const QTransform &transform) const;
     bool shouldIgnoreMousePressMoveEvent(const QMouseEvent *event) const;
     void setCheckerboardEnabled(bool enabled);
+    void applyTransformationModeByScaleFactor();
 
     void resetWithScaleAndRotate(qreal scaleFactor, qreal rotateAngle);
 

mainwindow.cpp

@@ -113,6 +113,10 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(quitAppShorucut, &QShortcut::activated,
             std::bind(&MainWindow::quitAppAction, this, false));
 
+    QShortcut * quitAppShorucut2 = new QShortcut(QKeySequence(Qt::Key_Escape), this);
+    connect(quitAppShorucut2, &QShortcut::activated,
+            std::bind(&MainWindow::quitAppAction, this, false));
+
     QShortcut * prevPictureShorucut = new QShortcut(QKeySequence(Qt::Key_PageUp), this);
     connect(prevPictureShorucut, &QShortcut::activated,
             this, &MainWindow::galleryPrev);
@@ -185,12 +189,18 @@ QUrl MainWindow::currentImageFileUrl() const
     return QUrl();
 }
 
+void MainWindow::clearGallery()
+{
+    m_currentFileIndex = -1;
+    m_files.clear();
+}
+
 void MainWindow::loadGalleryBySingleLocalFile(const QString &path)
 {
     QFileInfo info(path);
     QDir dir(info.path());
     QString currentFileName = info.fileName();
-    QStringList entryList = dir.entryList({"*.jpg", "*.jpeg", "*.png", "*.gif", "*.svg", "*.bmp"},
+    QStringList entryList = dir.entryList({"*.jpg", "*.jpeg", "*.jfif", "*.png", "*.gif", "*.svg", "*.bmp"},
                                           QDir::Files | QDir::NoSymLinks, QDir::NoSort);
 
     QCollator collator;
@@ -198,8 +208,7 @@ void MainWindow::loadGalleryBySingleLocalFile(const QString &path)
 
     std::sort(entryList.begin(), entryList.end(), collator);
 
-    m_currentFileIndex = -1;
-    m_files.clear();
+    clearGallery();
 
     for (int i = 0; i < entryList.count(); i++) {
         const QString & oneEntry = entryList.at(i);
@@ -268,8 +277,8 @@ void MainWindow::mousePressEvent(QMouseEvent *event)
     if (event->buttons() & Qt::LeftButton && !isMaximized()) {
         m_clickedOnWindow = true;
         m_oldMousePos = event->pos();
-        qDebug() << m_oldMousePos << m_graphicsView->transform().m11()
-                 << m_graphicsView->transform().m22() << m_graphicsView->matrix().m12();
+//        qDebug() << m_oldMousePos << m_graphicsView->transform().m11()
+//                 << m_graphicsView->transform().m22() << m_graphicsView->matrix().m12();
         event->accept();
     }
 
@@ -357,6 +366,7 @@ void MainWindow::contextMenuEvent(QContextMenuEvent *event)
 
     QAction * pasteImage = new QAction(tr("&Paste Image"));
     connect(pasteImage, &QAction::triggered, this, [ = ](){
+        clearGallery();
         m_graphicsView->showImage(clipboardImage);
     });
 

mainwindow.h

@@ -27,6 +27,7 @@ public:
     void adjustWindowSizeBySceneRect();
     QUrl currentImageFileUrl() const;
 
+    void clearGallery();
     void loadGalleryBySingleLocalFile(const QString &path);
     void galleryPrev();
     void galleryNext();