some tuning of the overlay search result selection

src/plugins/texteditor/basetexteditor.cpp

@@ -1871,6 +1871,9 @@ void BaseTextEditorPrivate::highlightSearchResults(const QTextBlock &block,
     if (m_searchExpr.isEmpty())
         return;
 
+    int blockPosition = block.position();
+
+    QTextCursor cursor = q->textCursor();
     QString text = block.text();
     text.replace(QChar::Nbsp, QLatin1Char(' '));
     int idx = -1;
@@ -1885,8 +1888,8 @@ void BaseTextEditorPrivate::highlightSearchResults(const QTextBlock &block,
             continue;
 
         if (m_findScope.isNull()
-            || (block.position() + idx >= m_findScope.selectionStart()
-                && block.position() + idx + l <= m_findScope.selectionEnd())) {
+            || (blockPosition + idx >= m_findScope.selectionStart()
+                && blockPosition + idx + l <= m_findScope.selectionEnd())) {
             if (selections) {
                 QTextLayout::FormatRange selection;
                 selection.start = idx;
@@ -1895,10 +1898,12 @@ void BaseTextEditorPrivate::highlightSearchResults(const QTextBlock &block,
                 selections->append(selection);
             }
 
-            overlay->addOverlaySelection(block.position() + idx,
-                                         block.position() + idx + l,
+            overlay->addOverlaySelection(blockPosition + idx,
+                                         blockPosition + idx + l,
                                          m_searchResultFormat.background().color().darker(120),
-                                         QColor());
+                                         QColor(), false,
+                                         (idx == cursor.selectionStart() - blockPosition
+                                          && idx + l == cursor.selectionEnd() - blockPosition));
 
         }
     }
@@ -2935,7 +2940,7 @@ void BaseTextEditor::slotCursorPositionChanged()
         saveCurrentCursorPositionForNavigation();
     }
 
-    if (d->m_parenthesesMatchingEnabled) {
+    if (d->m_parenthesesMatchingEnabled && hasFocus()) {
         // Delay update when no matching is displayed yet, to avoid flicker
         if (extraSelections(ParenthesesMatchingSelection).isEmpty()
             && d->m_animator == 0) {
@@ -4268,6 +4273,12 @@ void BaseTextEditor::changeEvent(QEvent *e)
     }
 }
 
+void BaseTextEditor::focusInEvent(QFocusEvent *e)
+{
+    QPlainTextEdit::focusInEvent(e);
+    slotCursorPositionChanged();
+}
+
 void BaseTextEditor::focusOutEvent(QFocusEvent *e)
 {
     QPlainTextEdit::focusOutEvent(e);

src/plugins/texteditor/basetexteditor.h

@@ -418,6 +418,7 @@ protected:
     void keyPressEvent(QKeyEvent *e);
     void wheelEvent(QWheelEvent *e);
     void changeEvent(QEvent *e);
+    void focusInEvent(QFocusEvent *e);
     void focusOutEvent(QFocusEvent *e);
 
     void showEvent(QShowEvent *);

src/plugins/texteditor/texteditoroverlay.cpp

@@ -37,7 +37,9 @@ void TextEditorOverlay::clear()
 }
 
 void TextEditorOverlay::addOverlaySelection(int begin, int end,
-                                            const QColor &fg, const QColor &bg, bool lockSize)
+                                            const QColor &fg, const QColor &bg,
+                                            bool lockSize,
+                                            bool dropShadow)
 {
     if (end < begin)
         return;
@@ -57,6 +59,8 @@ void TextEditorOverlay::addOverlaySelection(int begin, int end,
     if (lockSize)
         selection.m_fixedLength = (end - begin);
 
+    selection.m_dropShadow = dropShadow;
+
     m_selections += selection;
     update();
 }
@@ -232,9 +236,16 @@ QPainterPath TextEditorOverlay::createSelectionPath(const QTextCursor &begin, co
     return path;
 }
 
-void TextEditorOverlay::paintSelection(QPainter *painter, const QTextCursor &begin, const QTextCursor &end,
-                                       const QColor &fg, const QColor &bg)
+void TextEditorOverlay::paintSelection(QPainter *painter,
+                                       const OverlaySelection &selection)
 {
+
+    const QTextCursor &begin = selection.m_cursor_begin;
+    const QTextCursor &end= selection.m_cursor_end;
+    const QColor &fg = selection.m_fg;
+    const QColor &bg = selection.m_bg;
+
+
     if (begin.isNull() || end.isNull() || begin.position() > end.position())
         return;
 
@@ -268,9 +279,12 @@ void TextEditorOverlay::paintSelection(QPainter *painter, const QTextCursor &beg
     painter->restore();
 }
 
-void TextEditorOverlay::fillSelection(QPainter *painter, const QTextCursor &begin, const QTextCursor &end,
-                                       const QColor &color)
+void TextEditorOverlay::fillSelection(QPainter *painter,
+                                      const OverlaySelection &selection,
+                                      const QColor &color)
 {
+    const QTextCursor &begin = selection.m_cursor_begin;
+    const QTextCursor &end= selection.m_cursor_end;
     if (begin.isNull() || end.isNull() || begin.position() > end.position())
         return;
 
@@ -279,6 +293,11 @@ void TextEditorOverlay::fillSelection(QPainter *painter, const QTextCursor &begi
     painter->save();
     painter->translate(-.5, -.5);
     painter->setRenderHint(QPainter::Antialiasing);
+    if (selection.m_dropShadow) {
+        painter->translate(2, 2);
+        painter->fillPath(path, QColor(0, 0, 0, 100));
+        painter->translate(-2, -2);
+    }
     painter->fillPath(path, color);
     painter->restore();
 }
@@ -293,12 +312,7 @@ void TextEditorOverlay::paint(QPainter *painter, const QRect &clip)
             != selection.m_fixedLength)
             continue;
 
-        paintSelection(painter,
-                       selection.m_cursor_begin,
-                       selection.m_cursor_end,
-                       selection.m_fg,
-                       selection.m_bg
-                       );
+        paintSelection(painter, selection);
     }
 }
 
@@ -312,11 +326,7 @@ void TextEditorOverlay::fill(QPainter *painter, const QColor &color, const QRect
             != selection.m_fixedLength)
             continue;
 
-        fillSelection(painter,
-                       selection.m_cursor_begin,
-                       selection.m_cursor_end,
-                       color
-                       );
+        fillSelection(painter, selection, color);
     }
 }
 

src/plugins/texteditor/texteditoroverlay.h

@@ -8,12 +8,13 @@ namespace TextEditor {
 namespace Internal {
 
 struct TEXTEDITOR_EXPORT OverlaySelection {
-    OverlaySelection():m_fixedLength(-1){}
+    OverlaySelection():m_fixedLength(-1), m_dropShadow(false){}
     QTextCursor m_cursor_begin;
     QTextCursor m_cursor_end;
     QColor m_fg;
     QColor m_bg;
     int m_fixedLength;
+    bool m_dropShadow;
 };
 
 class TEXTEDITOR_EXPORT TextEditorOverlay : public QObject
@@ -47,16 +48,14 @@ public:
 
     void clear();
     void addOverlaySelection(const QTextCursor &cursor, const QColor &fg, const QColor &bg, bool lockSize = false);
-    void addOverlaySelection(int begin, int end, const QColor &fg, const QColor &bg, bool lockSize = false);
+    void addOverlaySelection(int begin, int end, const QColor &fg, const QColor &bg, bool lockSize = false, bool dropShadow = false);
 
     inline bool isEmpty() const { return m_selections.isEmpty(); }
 
 private:
     QPainterPath createSelectionPath(const QTextCursor &begin, const QTextCursor &end, const QRect& clip);
-    void paintSelection(QPainter *painter, const QTextCursor &begin, const QTextCursor &end,
-                        const QColor &fg, const QColor &bg);
-    void fillSelection(QPainter *painter, const QTextCursor &begin, const QTextCursor &end,
-                        const QColor &color);
+    void paintSelection(QPainter *painter, const OverlaySelection &selection);
+    void fillSelection(QPainter *painter, const OverlaySelection &selection, const QColor &color);
 
 };