Set mouse size

liblxqt-config-cursor/cfgfile.cpp

@@ -54,7 +54,7 @@ QMultiMap<QString, QString> loadCfgFile(const QString &fname, bool forceLoCase)
     return res;
 }
 
-void fixXDefaults(const QString &themeName)
+void fixXDefaults(const QString &themeName, int cursorSize)
 {
     QStringList lst;
     {
@@ -68,7 +68,7 @@ void fixXDefaults(const QString &themeName)
                 QString s = stream.readLine();
                 if (s.isNull())
                     break;
-                // if the line does not contain Xcursor?theme, save it to a list
+                // if the line does not contain Xcursor.theme, save it to a list
                 if (!(s.startsWith(QLatin1String("Xcursor")) && s.midRef(8).startsWith(QLatin1String("theme"))))
                     lst << s;
             }
@@ -93,6 +93,7 @@ void fixXDefaults(const QString &themeName)
                 stream << s << "\n";
             }
             stream << "\nXcursor.theme: " << themeName << "\n";
+            stream << "\nXcursor.size: " << cursorSize << "\n";
             fl.close();
         }
     }

liblxqt-config-cursor/cfgfile.h

@@ -14,7 +14,7 @@
 #include <QString>
 
 QMultiMap<QString, QString> loadCfgFile(const QString &fname, bool forceLoCase=false);
-void fixXDefaults(const QString &themeName);
+void fixXDefaults(const QString &themeName, int cursorSize);
 const QString findDefaultTheme();
 
 #endif

liblxqt-config-cursor/crtheme.cpp

@@ -227,12 +227,15 @@ bool haveXfixes()
     return result;
 }
 
-bool applyTheme(const XCursorThemeData &theme)
+bool applyTheme(const XCursorThemeData &theme, int cursorSize)
 {
     // Require the Xcursor version that shipped with X11R6.9 or greater, since
     // in previous versions the Xfixes code wasn't enabled due to a bug in the
     // build system (freedesktop bug #975).
     if (!haveXfixes()) return false;
+
+    // Sets default cursor size
+    XcursorSetDefaultSize(QX11Info::display(), cursorSize);
 
     QByteArray themeName = QFile::encodeName(theme.name());
 

liblxqt-config-cursor/crtheme.h

@@ -112,7 +112,7 @@ class XCursorThemeData
 };
 
 bool haveXfixes();
-bool applyTheme(const XCursorThemeData &theme);
+bool applyTheme(const XCursorThemeData &theme, int cursorSize);
 
 QString getCurrentTheme();
 

liblxqt-config-cursor/previewwidget.cpp

@@ -76,11 +76,13 @@ class PreviewCursor
     QPoint position () const { return mPos; }
     operator const xcb_cursor_t& () const { return mCursorHandle; }
     operator const QPixmap& () const { return pixmap(); }
+    const QString &getName() const { return mName; }
 
     private:
     QPixmap mPixmap;
     xcb_cursor_t mCursorHandle;
     QPoint mPos;
+    QString mName;
 };
 
 
@@ -96,6 +98,7 @@ PreviewCursor::PreviewCursor(const XCursorThemeData &theme, const QString &name)
     mPixmap = QPixmap::fromImage(image);
     // load the cursor
     mCursorHandle = theme.loadCursorHandle(name, previewSize);
+    mName = name;
 }
 
 QRect PreviewCursor::rect() const
@@ -109,6 +112,8 @@ PreviewWidget::PreviewWidget(QWidget *parent) : QWidget(parent)
 {
     setMouseTracking(true);
     mCurrent = NULL;
+    mCursorSize = 16; // It usually is the default cursor size
+    mCurrentCursorSize = 16;
 }
 
 PreviewWidget::~PreviewWidget()
@@ -120,6 +125,7 @@ PreviewWidget::~PreviewWidget()
 
 // Since Qt5, wrapping a Cursor handle with QCursor is no longer supported.
 // So we have to do it ourselves. I really hate Qt 5!
+// Update: Qt 5.12 setCursor works properly
 void PreviewWidget::setCursorHandle(xcb_cursor_t cursorHandle)
 {
     WId wid = nativeParentWidget()->windowHandle()->winId();
@@ -157,11 +163,12 @@ void PreviewWidget::layoutItems()
     mNeedLayout = false;
 }
 
-void PreviewWidget::setTheme(const XCursorThemeData &theme)
+void PreviewWidget::setTheme(const XCursorThemeData *theme)
 {
+    mTheme = theme;
     qDeleteAll(mList);
     mList.clear();
-    for (int i = 0; i < numCursors; ++i) mList << new PreviewCursor(theme, QString::fromUtf8(cursorNames[i]));
+    for (int i = 0; i < numCursors; ++i) mList << new PreviewCursor(*theme, QString::fromUtf8(cursorNames[i]));
     mNeedLayout = true;
     updateGeometry();
     mCurrent = NULL;
@@ -174,6 +181,7 @@ void PreviewWidget::clearTheme()
     qDeleteAll(mList);
     mList.clear();
     mCurrent = NULL;
+    mTheme = nullptr;
     update();
 }
 
@@ -204,7 +212,11 @@ void PreviewWidget::mouseMoveEvent(QMouseEvent *e)
                 // cheat Qt so it knows that the current cursor is not Qt::ArrowCursor.
                 // This is a dirty hack, but without this, Qt cannot restore Qt::ArrowCursor later.
                 setCursor(Qt::BlankCursor);
-                setCursorHandle(*c);
+                //setCursorHandle(*c); // Use default Qt5 setCursor:
+                if(mTheme != nullptr) {
+                    QImage image = mTheme->loadImage(c->getName(), mCursorSize);
+                    if (! image.isNull()) setCursor(QPixmap::fromImage(image));
+                }
                 mCurrent = c;
             }
             return;
@@ -214,8 +226,27 @@ void PreviewWidget::mouseMoveEvent(QMouseEvent *e)
     mCurrent = NULL;
 }
 
-
 void PreviewWidget::resizeEvent(QResizeEvent *)
 {
     if (!mList.isEmpty()) mNeedLayout = true;
 }
+
+void PreviewWidget::setCursorSize(int size)
+{
+    mCursorSize = size;
+}
+
+int PreviewWidget::getCursorSize()
+{
+    return mCursorSize;
+}
+
+void PreviewWidget::setCurrentCursorSize(int size)
+{
+    mCurrentCursorSize = size;
+}
+
+int PreviewWidget::getCurrentCursorSize()
+{
+    return mCurrentCursorSize;
+}

liblxqt-config-cursor/previewwidget.h

@@ -37,12 +37,16 @@ class PreviewWidget : public QWidget
     PreviewWidget (QWidget *parent=0);
     ~PreviewWidget ();
 
-    void setTheme (const XCursorThemeData &theme);
+    void setTheme (const XCursorThemeData *theme);
     void clearTheme ();
 
     QSize sizeHint () const;
 
     void setCursorHandle(xcb_cursor_t cursorHandle);
+    void setCursorSize(int size);
+    int getCursorSize();
+    void setCurrentCursorSize(int size);
+    int getCurrentCursorSize();
 
 protected:
     void paintEvent (QPaintEvent *e);
@@ -55,6 +59,9 @@ class PreviewWidget : public QWidget
     QList<PreviewCursor *> mList;
     const PreviewCursor *mCurrent;
     bool mNeedLayout;
+    int mCursorSize;
+    int mCurrentCursorSize;
+    const XCursorThemeData *mTheme;
 };
 
 #endif

liblxqt-config-cursor/selectwnd.cpp

@@ -36,6 +36,9 @@
 #include <QTextStream>
 #include <QProcess>
 
+#include <QX11Info>
+#include <X11/Xcursor/Xcursor.h>
+
 const QString HOME_ICON_DIR(QDir::homePath() + QStringLiteral("/.icons"));
 
 SelectWnd::SelectWnd(LXQt::Settings* settings, QWidget *parent)
@@ -45,6 +48,8 @@ SelectWnd::SelectWnd(LXQt::Settings* settings, QWidget *parent)
 {
     ui->setupUi(this);
     ui->warningLabel->hide();
+    ui->preview->setCurrentCursorSize(XcursorGetDefaultSize(QX11Info::display()));
+    ui->preview->setCursorSize(ui->preview->getCurrentCursorSize());
 
     mModel = new XCursorThemeModel(this);
 
@@ -66,6 +71,12 @@ SelectWnd::SelectWnd(LXQt::Settings* settings, QWidget *parent)
 
     connect(ui->warningLabel, SIGNAL(showDirInfo()),
                     this, SLOT(showDirInfo()));
+
+    // Set actual cursor size
+    ui->cursorSizeSpinBox->setValue(XcursorGetDefaultSize(QX11Info::display()));
+
+    connect(ui->cursorSizeSpinBox, SIGNAL(	valueChanged(int)),
+                    this, SLOT(cursorSizeChaged(int)));
 
     // Disable the install button if we can't install new themes to ~/.icons,
     // or Xcursor isn't set up to look for cursor themes there
@@ -102,7 +113,7 @@ void SelectWnd::setCurrent()
         selectRow(mAppliedIndex);
         ui->lbThemes->scrollTo(mAppliedIndex, QListView::PositionAtCenter);
         // Update the preview widget as well
-        if (theme) ui->preview->setTheme(*theme);// else ui->preview->clearTheme();
+        if (theme) ui->preview->setTheme(theme);// else ui->preview->clearTheme();
     }
 }
 
@@ -136,7 +147,7 @@ void SelectWnd::currentChanged(const QModelIndex &current, const QModelIndex &pr
     if (current.isValid()) {
         const XCursorThemeData *theme = mModel->theme(current);
         if (theme) {
-            ui->preview->setTheme(*theme);
+            ui->preview->setTheme(theme);
             ui->btRemove->setEnabled(theme->isWritable());
         } else {
             ui->preview->clearTheme();
@@ -159,11 +170,18 @@ void SelectWnd::applyCusorTheme()
     QModelIndex curIndex = ui->lbThemes->currentIndex();
     if(!curIndex.isValid()) return;
     const XCursorThemeData *theme = mModel->theme(curIndex);
-    if(!theme || mSettings->value(QStringLiteral("Mouse/cursor_theme")) == theme->name()) {
+
+    if(!theme ||
+        (
+            mSettings->value(QStringLiteral("Mouse/cursor_theme")) == theme->name()
+            && mSettings->value(QStringLiteral("Mouse/cursor_size")) == ui->cursorSizeSpinBox->value()
+        )
+    ) {
         return;
     }
-    applyTheme(*theme);
-    fixXDefaults(theme->name());
+
+    applyTheme(*theme, ui->cursorSizeSpinBox->value());
+    fixXDefaults(theme->name(), ui->cursorSizeSpinBox->value());
 
     // call xrdb to merge the new settings in ~/.Xdefaults
     // FIXME: need to check if we're running in X?
@@ -179,6 +197,7 @@ void SelectWnd::applyCusorTheme()
     // save to Mouse/cursor_theme instead
     mSettings->beginGroup(QStringLiteral("Mouse"));
     mSettings->setValue(QStringLiteral("cursor_theme"), theme->name());
+    mSettings->setValue(QStringLiteral("cursor_size"), ui->cursorSizeSpinBox->value());
     mSettings->endGroup();
 
     // The XCURSOR_THEME environment variable does not work sometimes.
@@ -197,7 +216,8 @@ void SelectWnd::applyCusorTheme()
         "[Icon Theme]\n" <<
         "Name=Default\n" <<
         "Comment=Default cursor theme\n" <<
-        "Inherits=" << theme->name() << "\n";
+        "Inherits=" << theme->name() << "\n" <<
+        "Size=" << ui->cursorSizeSpinBox->value() << "\n";
         indexTheme.close();
     }
 }
@@ -222,13 +242,19 @@ void SelectWnd::on_btRemove_clicked()
 
 void SelectWnd::handleWarning()
 {
-        bool empty = mModel->rowCount();
-        ui->warningLabel->setVisible(!empty);
-        ui->preview->setVisible(empty);
-        ui->infoLabel->setVisible(empty);
+    bool empty = mModel->rowCount();
+    ui->warningLabel->setVisible(!empty);
+    ui->preview->setVisible(empty);
+    ui->infoLabel->setVisible(empty);
 }
 
 void SelectWnd::showDirInfo()
 {
-        QToolTip::showText(mapToGlobal(ui->warningLabel->buttonPos()), mModel->searchPaths().join(QStringLiteral("\n")));
+    QToolTip::showText(mapToGlobal(ui->warningLabel->buttonPos()), mModel->searchPaths().join(QStringLiteral("\n")));
+}
+
+void SelectWnd::cursorSizeChaged(int size)
+{
+    ui->preview->setCursorSize(size);
+    emit settingsChanged();
 }

liblxqt-config-cursor/selectwnd.h

@@ -58,6 +58,7 @@ private slots:
     void on_btRemove_clicked ();
     void handleWarning();
     void showDirInfo();
+    void cursorSizeChaged(int size);
 
 private:
     XCursorThemeModel *mModel;