TextEditor: Make TextEditorSettings all static

Move the fading indicator to the widget

Change-Id: I762c46845153c93c75ea0198c993b655559fad3b
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>

src/plugins/texteditor/texteditor.cpp

@@ -81,6 +81,7 @@
 #include <utils/linecolumnlabel.h>
 #include <utils/fileutils.h>
 #include <utils/dropsupport.h>
+#include <utils/fadingindicator.h>
 #include <utils/filesearch.h>
 #include <utils/hostosinfo.h>
 #include <utils/mimetypes/mimedatabase.h>
@@ -3022,11 +3023,6 @@ void TextEditorWidgetPrivate::setupDocumentSignals()
     connect(settings, &TextEditorSettings::extraEncodingSettingsChanged,
             q, &TextEditorWidget::setExtraEncodingSettings);
 
-    connect(q, &TextEditorWidget::requestFontZoom,
-            settings, &TextEditorSettings::fontZoomRequested);
-    connect(q, &TextEditorWidget::requestZoomReset,
-            settings, &TextEditorSettings::zoomResetRequested);
-
     // Apply current settings
     m_document->setFontSettings(settings->fontSettings());
     m_document->setTabSettings(settings->codeStyle()->tabSettings()); // also set through code style ???
@@ -5494,12 +5490,15 @@ void TextEditorWidget::zoomF(float delta)
     else if (step < 0 && step > -1)
         step = -1;
 
-    emit requestFontZoom(step);
+    const int newZoom = TextEditorSettings::instance()->increaseFontZoom(int(step));
+    Utils::FadingIndicator::showText(this,
+                                     tr("Zoom: %1%").arg(newZoom),
+                                     Utils::FadingIndicator::SmallText);
 }
 
 void TextEditorWidget::zoomReset()
 {
-    emit requestZoomReset();
+    TextEditorSettings::instance()->resetFontZoom();
 }
 
 TextEditorWidget::Link TextEditorWidget::findLinkAt(const QTextCursor &, bool, bool)

src/plugins/texteditor/texteditor.h

@@ -479,8 +479,6 @@ signals:
     void assistFinished(); // Used in tests.
     void readOnlyChanged();
 
-    void requestFontZoom(int zoom);
-    void requestZoomReset();
     void requestBlockUpdate(const QTextBlock &);
 
 protected:

src/plugins/texteditor/texteditorsettings.cpp

@@ -50,7 +50,6 @@
 
 #include <extensionsystem/pluginmanager.h>
 #include <coreplugin/icore.h>
-#include <utils/fadingindicator.h>
 #include <utils/qtcassert.h>
 
 #include <QApplication>
@@ -509,23 +508,19 @@ Core::Id TextEditorSettings::languageId(const QString &mimeType)
     return d->m_mimeTypeToLanguage.value(mimeType);
 }
 
-void TextEditorSettings::fontZoomRequested(int zoom)
+int TextEditorSettings::increaseFontZoom(int step)
 {
     FontSettings &fs = const_cast<FontSettings&>(d->m_fontSettingsPage->fontSettings());
     const int previousZoom = fs.fontZoom();
-    const int newZoom = qMax(10, previousZoom + zoom);
-    if (newZoom == previousZoom)
-        return;
+    const int newZoom = qMax(10, previousZoom + step);
+    if (newZoom != previousZoom) {
         fs.setFontZoom(newZoom);
-    if (QWidget *editor = qobject_cast<QWidget *>(sender())) {
-        Utils::FadingIndicator::showText(editor,
-                                         tr("Zoom: %1%").arg(newZoom),
-                                         Utils::FadingIndicator::SmallText);
-    }
         d->m_fontSettingsPage->saveSettings();
     }
+    return newZoom;
+}
 
-void TextEditorSettings::zoomResetRequested()
+void TextEditorSettings::resetFontZoom()
 {
     FontSettings &fs = const_cast<FontSettings&>(d->m_fontSettingsPage->fontSettings());
     fs.setFontZoom(100);

src/plugins/texteditor/texteditorsettings.h

@@ -103,8 +103,8 @@ public:
 
     static void registerMimeTypeForLanguageId(const char *mimeType, Core::Id languageId);
     static Core::Id languageId(const QString &mimeType);
-    void fontZoomRequested(int zoom);
-    void zoomResetRequested();
+    static int increaseFontZoom(int step);
+    static void resetFontZoom();
 
 signals:
     void fontSettingsChanged(const TextEditor::FontSettings &);