Changeset 11845 in vbox for trunk/src

Timestamp:

Aug 29, 2008 6:50:53 PM (16 years ago)

Author:

vboxsync

Message:

Fe/Qt4: File/Folder path selector I-Beam cursor positioning fix for entering edit-mode.

Location:

trunk/src/VBox/Frontends/VirtualBox4

Files:

• include/VBoxFilePathSelectorWidget.h (modified) (4 diffs)
• src/VBoxFilePathSelectorWidget.cpp (modified) (8 diffs)

trunk/src/VBox/Frontends/VirtualBox4/include/VBoxFilePathSelectorWidget.h

@@ -68 +68 @@
     void focusInEvent (QFocusEvent *aEvent);
     void focusOutEvent (QFocusEvent *aEvent);
+    bool eventFilter (QObject *aObj, QEvent *aEv);
     void retranslateUi();
 
@@ -74 +75 @@
     void onActivated (int aIndex);
     void copyToClipboard();
+    void refreshText();
 
 private:
@@ -81 +83 @@
     QString fullPath (bool aAbsolute = true) const;
     QString shrinkText (int aWidth) const;
-    void refreshText();
 
     /* Private member vars */
@@ -92 +93 @@
     QString mNoneTip;
     bool mIsEditableMode;
+    bool mIsMouseAwaited;
 };
 

trunk/src/VBox/Frontends/VirtualBox4/src/VBoxFilePathSelectorWidget.cpp

@@ -31 +31 @@
 #include <QFileIconProvider>
 #include <QLineEdit>
+#include <QTimer>
 
 enum
@@ -38 +39 @@
     ResetId
 };
+
+/**
+ * Returns first position of difference between passed strings.
+ */
+static int differFrom (const QString &aS1, const QString &aS2)
+{
+    if (aS1 == aS2)
+        return -1;
+
+    int minLength = qMin (aS1.size(), aS2.size());
+    int index = 0;
+    for (index = 0; index < minLength ; ++ index)
+        if (aS1 [index] != aS2 [index])
+            break;
+    return index;
+}
 
 VBoxFilePathSelectorWidget::VBoxFilePathSelectorWidget (QWidget *aParent)
@@ -46 +63 @@
     , mHomeDir (QDir::current().absolutePath())
     , mIsEditableMode (false)
+    , mIsMouseAwaited (false)
 {
     /* Populate items */
@@ -76 +94 @@
     /* Applying language settings */
     retranslateUi();
+
+    /* Installing necessary event filters */
+    lineEdit()->installEventFilter (this);
 }
 
@@ -156 +177 @@
     {
         mIsEditableMode = true;
-        refreshText();
+        if (aEvent->reason() == Qt::MouseFocusReason)
+            mIsMouseAwaited = true;
+        else
+            refreshText();
     }
     QIWithRetranslateUI<QComboBox>::focusInEvent (aEvent);
@@ -169 +193 @@
     }
     QIWithRetranslateUI<QComboBox>::focusOutEvent (aEvent);
+}
+
+bool VBoxFilePathSelectorWidget::eventFilter (QObject *aObj, QEvent *aEv)
+{
+    if (mIsMouseAwaited && (aEv->type() == QEvent::MouseButtonPress))
+        QTimer::singleShot (0, this, SLOT (refreshText()));
+
+    return QIWithRetranslateUI<QComboBox>::eventFilter (aObj, aEv);
 }
 
@@ -353 +385 @@
     if (mIsEditableMode)
     {
+        /* Cursor positioning variables */
+        int curPos = -1;
+        int diffPos = -1;
+        int fromRight = -1;
+
+        if (mIsMouseAwaited)
+        {
+            /* Store the cursor position */
+            curPos = lineEdit()->cursorPosition();
+            diffPos = differFrom (lineEdit()->text(), mPath);
+            fromRight = lineEdit()->text().size() - curPos;
+        }
+
         /* In editable mode there should be no any icon
          * and text have be corresponding real stored path
@@ -361 +406 @@
             tr ("Please type the desired folder path here.") :
             tr ("Please type the desired file path here."));
+
+        if (mIsMouseAwaited)
+        {
+            mIsMouseAwaited = false;
+
+            /* Restore the position to the right of dots */
+            if (diffPos != -1 && curPos >= diffPos + 3)
+                lineEdit()->setCursorPosition (lineEdit()->text().size() -
+                                               fromRight);
+            /* Restore the position to the center of text */
+            else if (diffPos != -1 && curPos > diffPos)
+                lineEdit()->setCursorPosition (lineEdit()->text().size() / 2);
+            /* Restore the position to the left of dots */
+            else
+                lineEdit()->setCursorPosition (curPos);
+        }
     }
     else if (mPath.isNull())