Find: Show number of replaced items after replace all

Show a fading indicator over the editor, or over the main window in case
of global search & replace.

Change-Id: I84a982bcfed558c0f84c08c3625a0cad4c5409d6
Task-number: QTCREATORBUG-3494
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/libs/utils/fadingindicator.cpp

@@ -48,7 +48,7 @@ class FadingIndicatorPrivate : public QWidget
     Q_OBJECT
 
 public:
-    FadingIndicatorPrivate(QWidget *parent = 0)
+    FadingIndicatorPrivate(QWidget *parent, FadingIndicator::TextSize size)
         : QWidget(parent)
     {
         m_effect = new QGraphicsOpacityEffect(this);
@@ -57,7 +57,7 @@ public:
 
         m_label = new QLabel;
         QFont font = m_label->font();
-        font.setPixelSize(45);
+        font.setPixelSize(size == FadingIndicator::LargeText ? 45 : 22);
         m_label->setFont(font);
         QPalette pal = palette();
         pal.setColor(QPalette::Foreground, pal.color(QPalette::Background));
@@ -126,16 +126,16 @@ private:
 
 namespace FadingIndicator {
 
-void showText(QWidget *parent, const QString &text)
+void showText(QWidget *parent, const QString &text, TextSize size)
 {
-    auto indicator = new Internal::FadingIndicatorPrivate(parent);
+    auto indicator = new Internal::FadingIndicatorPrivate(parent, size);
     indicator->setText(text);
-    indicator->run(1000); // deletes itself
+    indicator->run(2500); // deletes itself
 }
 
 void showPixmap(QWidget *parent, const QString &pixmap)
 {
-    auto indicator = new Internal::FadingIndicatorPrivate(parent);
+    auto indicator = new Internal::FadingIndicatorPrivate(parent, LargeText);
     indicator->setPixmap(pixmap);
     indicator->run(300); // deletes itself
 }

src/libs/utils/fadingindicator.h

@@ -40,7 +40,13 @@
 namespace Utils {
 namespace FadingIndicator {
 
-QTCREATOR_UTILS_EXPORT void showText(QWidget *parent, const QString &text);
+enum TextSize {
+    SmallText,
+    LargeText
+};
+
+QTCREATOR_UTILS_EXPORT void showText(QWidget *parent, const QString &text,
+                                     TextSize size = LargeText);
 QTCREATOR_UTILS_EXPORT void showPixmap(QWidget *parent, const QString &pixmap);
 
 } // FadingIndicator

src/plugins/coreplugin/find/currentdocumentfind.cpp

@@ -32,6 +32,8 @@
 
 #include <aggregation/aggregate.h>
 #include <coreplugin/coreconstants.h>
+
+#include <utils/fadingindicator.h>
 #include <utils/qtcassert.h>
 
 #include <QDebug>
@@ -134,7 +136,12 @@ bool CurrentDocumentFind::replaceStep(const QString &before, const QString &afte
 int CurrentDocumentFind::replaceAll(const QString &before, const QString &after, FindFlags findFlags)
 {
     QTC_ASSERT(m_currentFind, return 0);
-    return m_currentFind->replaceAll(before, after, findFlags);
+    QTC_CHECK(m_currentWidget);
+    int count = m_currentFind->replaceAll(before, after, findFlags);
+    Utils::FadingIndicator::showText(m_currentWidget,
+                                     tr("%1 occurrences replaced.").arg(count),
+                                     Utils::FadingIndicator::SmallText);
+    return count;
 }
 
 void CurrentDocumentFind::defineFindScope()

src/plugins/texteditor/basefilefind.cpp

@@ -42,9 +42,10 @@
 #include <coreplugin/find/ifindsupport.h>
 #include <texteditor/texteditor.h>
 #include <texteditor/refactoringchanges.h>
-#include <utils/stylehelper.h>
-#include <utils/qtcassert.h>
+#include <utils/fadingindicator.h>
 #include <utils/filesearch.h>
+#include <utils/qtcassert.h>
+#include <utils/stylehelper.h>
 
 #include <QDebug>
 #include <QSettings>
@@ -208,6 +209,9 @@ void BaseFileFind::doReplace(const QString &text,
 {
     QStringList files = replaceAll(text, items, preserveCase);
     if (!files.isEmpty()) {
+        Utils::FadingIndicator::showText(ICore::mainWindow(),
+            tr("%1 occurrences replaced.").arg(items.size()),
+            Utils::FadingIndicator::SmallText);
         DocumentManager::notifyFilesChangedInternally(files);
         SearchResultWindow::instance()->hide();
     }