TextEditors: Move font settings to document

Change-Id: I325764cbaa9684fa2758b0ea6c6ea58de142cb73
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/cppeditor/cppeditor.cpp

@@ -1529,13 +1529,14 @@ TextEditor::CompletionAssistProvider *CPPEditor::completionAssistProvider()
     return CppModelManagerInterface::instance()->cppEditorSupport(this)->completionAssistProvider();
 }
 
-void CPPEditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
+void CPPEditorWidget::applyFontSettings()
 {
-    TextEditor::BaseTextEditorWidget::setFontSettings(fs);
+    TextEditor::BaseTextEditorWidget::applyFontSettings();
     TextEditor::SyntaxHighlighter *highlighter = baseTextDocument()->syntaxHighlighter();
     if (!highlighter)
         return;
 
+    const TextEditor::FontSettings &fs = baseTextDocument()->fontSettings();
     m_occurrencesFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES);
     m_occurrencesUnusedFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES_UNUSED);
     m_occurrencesUnusedFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);

src/plugins/cppeditor/cppeditor.h

@@ -145,7 +145,6 @@ Q_SIGNALS:
     void outlineModelIndexChanged(const QModelIndex &index);
 
 public Q_SLOTS:
-    virtual void setFontSettings(const TextEditor::FontSettings &);
     void setSortedOutline(bool sort);
     void switchDeclarationDefinition(bool inNextSplit);
     void renameSymbolUnderCursor();
@@ -162,6 +161,7 @@ protected:
     void contextMenuEvent(QContextMenuEvent *);
     void keyPressEvent(QKeyEvent *e);
 
+    void applyFontSettings();
     TextEditor::BaseTextEditor *createEditor();
 
     const CPlusPlus::Macro *findCanonicalMacro(const QTextCursor &cursor,

src/plugins/cpptools/cppcodestylesettingspage.cpp

@@ -497,7 +497,7 @@ void CppCodeStylePreferencesWidget::decorateEditors(const TextEditor::FontSettin
     }
 
     foreach (TextEditor::SnippetEditorWidget *editor, m_previews) {
-        editor->setFontSettings(fontSettings);
+        editor->baseTextDocument()->setFontSettings(fontSettings);
         if (provider)
             provider->decorateEditor(editor);
     }

src/plugins/diffeditor/diffeditorwidget.cpp

@@ -185,7 +185,6 @@ public:
 
 public slots:
     void setDisplaySettings(const DisplaySettings &ds);
-    void setFontSettings(const TextEditor::FontSettings &fs);
 
 signals:
     void jumpToOriginalFileRequested(int diffFileIndex,
@@ -194,6 +193,7 @@ signals:
 
 protected:
     virtual int extraAreaWidth(int *markWidthPtr = 0) const { return BaseTextEditorWidget::extraAreaWidth(markWidthPtr); }
+    void applyFontSettings();
     BaseTextEditor *createEditor() { return new DiffViewEditorEditable(this); }
     virtual QString lineNumber(int blockNumber) const;
     virtual int lineNumberDigits() const;
@@ -356,9 +356,10 @@ void DiffViewEditorWidget::setDisplaySettings(const DisplaySettings &ds)
     BaseTextEditorWidget::setDisplaySettings(settings);
 }
 
-void DiffViewEditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
+void DiffViewEditorWidget::applyFontSettings()
 {
-    BaseTextEditorWidget::setFontSettings(fs);
+    BaseTextEditorWidget::applyFontSettings();
+    const TextEditor::FontSettings &fs = baseTextDocument()->fontSettings();
     m_fileLineForeground = fs.formatFor(C_DIFF_FILE_LINE).foreground();
     m_chunkLineForeground = fs.formatFor(C_DIFF_CONTEXT_LINE).foreground();
     m_textForeground = fs.toTextCharFormat(C_TEXT).foreground().color();
@@ -1578,8 +1579,8 @@ static QTextCharFormat fullWidthFormatForTextStyle(const TextEditor::FontSetting
 
 void DiffEditorWidget::setFontSettings(const TextEditor::FontSettings &fontSettings)
 {
-    m_leftEditor->setFontSettings(fontSettings);
-    m_rightEditor->setFontSettings(fontSettings);
+    m_leftEditor->baseTextDocument()->setFontSettings(fontSettings);
+    m_rightEditor->baseTextDocument()->setFontSettings(fontSettings);
 
     m_fileLineFormat = fullWidthFormatForTextStyle(fontSettings, C_DIFF_FILE_LINE);
     m_chunkLineFormat = fullWidthFormatForTextStyle(fontSettings, C_DIFF_CONTEXT_LINE);

src/plugins/diffeditor/diffshoweditor.cpp

@@ -125,7 +125,7 @@ DiffShowEditor::DiffShowEditor(DiffEditorWidget *editorWidget)
             m_diffShowWidget, SLOT(setFontSettings(TextEditor::FontSettings)));
     m_diffShowWidget->setDisplaySettings(TextEditorSettings::displaySettings());
     m_diffShowWidget->setCodeStyle(TextEditorSettings::codeStyle());
-    m_diffShowWidget->setFontSettings(TextEditorSettings::fontSettings());
+    m_diffShowWidget->baseTextDocument()->setFontSettings(TextEditorSettings::fontSettings());
 }
 
 DiffShowEditor::~DiffShowEditor()

src/plugins/projectexplorer/environmentitemswidget.cpp

@@ -71,7 +71,7 @@ EnvironmentItemsWidget::EnvironmentItemsWidget(QWidget *parent) :
     QWidget(parent), d(new EnvironmentItemsWidgetPrivate)
 {
     d->m_editor = new TextEditor::SnippetEditorWidget(this);
-    d->m_editor->setFontSettings(TextEditor::TextEditorSettings::fontSettings());
+    d->m_editor->baseTextDocument()->setFontSettings(TextEditor::TextEditorSettings::fontSettings());
     QVBoxLayout *layout = new QVBoxLayout(this);
     layout->addWidget(d->m_editor);
 }

src/plugins/pythoneditor/pythoneditorwidget.cpp

@@ -89,14 +89,14 @@ void EditorWidget::unCommentSelection()
   Handles common IDE fonts&colors settings
   (Tools -> Options -> Text editor -> Fonts and colors)
   */
-void EditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
+void EditorWidget::applyFontSettings()
 {
-    TextEditor::BaseTextEditorWidget::setFontSettings(fs);
+    TextEditor::BaseTextEditorWidget::applyFontSettings();
 
     PythonHighlighter *highlighter =
             qobject_cast<PythonHighlighter *>(baseTextDocument()->syntaxHighlighter());
     if (highlighter)
-        highlighter->setFontSettings(fs);
+        highlighter->setFontSettings(baseTextDocument()->fontSettings());
 }
 
 TextEditor::BaseTextEditor *EditorWidget::createEditor()

src/plugins/pythoneditor/pythoneditorwidget.h

@@ -47,10 +47,8 @@ public:
 
     virtual void unCommentSelection();
 
-public slots:
-    virtual void setFontSettings(const TextEditor::FontSettings &);
-
 protected:
+    void applyFontSettings();
     TextEditor::BaseTextEditor *createEditor();
 
 private:

src/plugins/qmljseditor/qmljseditor.cpp

@@ -997,10 +997,11 @@ void QmlJSTextEditorWidget::setSelectedElements()
     emit selectedElementsChanged(offsets, wordAtCursor);
 }
 
-void QmlJSTextEditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
+void QmlJSTextEditorWidget::applyFontSettings()
 {
-    TextEditor::BaseTextEditorWidget::setFontSettings(fs);
+    TextEditor::BaseTextEditorWidget::applyFontSettings();
 
+    const TextEditor::FontSettings &fs = baseTextDocument()->fontSettings();
     m_occurrencesFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES);
     m_occurrencesUnusedFormat = fs.toTextCharFormat(TextEditor::C_OCCURRENCES_UNUSED);
     m_occurrencesUnusedFormat.setUnderlineStyle(QTextCharFormat::WaveUnderline);

src/plugins/qmljseditor/qmljseditor.h

@@ -135,7 +135,6 @@ public slots:
     void findUsages();
     void renameUsages();
     void showContextPane();
-    virtual void setFontSettings(const TextEditor::FontSettings &);
 
 signals:
     void outlineModelIndexChanged(const QModelIndex &index);
@@ -168,6 +167,7 @@ protected:
     void wheelEvent(QWheelEvent *event);
     void resizeEvent(QResizeEvent *event);
     void scrollContentsBy(int dx, int dy);
+    void applyFontSettings();
     TextEditor::BaseTextEditor *createEditor();
     void createToolBar(QmlJSEditor *editable);
     TextEditor::BaseTextEditorWidget::Link findLinkAt(const QTextCursor &cursor,

src/plugins/qmljstools/qmljscodestylesettingspage.cpp

@@ -107,7 +107,7 @@ void QmlJSCodeStylePreferencesWidget::decorateEditor(const TextEditor::FontSetti
         }
     }
 
-    m_ui->previewTextEdit->setFontSettings(fontSettings);
+    m_ui->previewTextEdit->baseTextDocument()->setFontSettings(fontSettings);
     if (provider)
         provider->decorateEditor(m_ui->previewTextEdit);
 }

src/plugins/texteditor/basetextdocument.cpp

@@ -33,6 +33,7 @@
 #include "basetexteditor.h"
 #include "convenience.h"
 #include "extraencodingsettings.h"
+#include "fontsettings.h"
 #include "indenter.h"
 #include "storagesettings.h"
 #include "syntaxhighlighter.h"
@@ -77,6 +78,7 @@ public:
     StorageSettings m_storageSettings;
     TabSettings m_tabSettings;
     ExtraEncodingSettings m_extraEncodingSettings;
+    FontSettings m_fontSettings;
     QTextDocument *m_document;
     SyntaxHighlighter *m_highlighter;
     QScopedPointer<Indenter> m_indenter;
@@ -230,6 +232,19 @@ const TabSettings &BaseTextDocument::tabSettings() const
     return d->m_tabSettings;
 }
 
+void BaseTextDocument::setFontSettings(const FontSettings &fontSettings)
+{
+    if (fontSettings == d->m_fontSettings)
+        return;
+    d->m_fontSettings = fontSettings;
+    emit fontSettingsChanged();
+}
+
+const FontSettings &BaseTextDocument::fontSettings() const
+{
+    return d->m_fontSettings;
+}
+
 void BaseTextDocument::setExtraEncodingSettings(const ExtraEncodingSettings &extraEncodingSettings)
 {
     d->m_extraEncodingSettings = extraEncodingSettings;

src/plugins/texteditor/basetextdocument.h

@@ -43,6 +43,7 @@ namespace TextEditor {
 
 class BaseTextDocumentPrivate;
 class ExtraEncodingSettings;
+class FontSettings;
 class ITextMarkable;
 class Indenter;
 class StorageSettings;
@@ -71,6 +72,7 @@ public:
     const StorageSettings &storageSettings() const;
     const TabSettings &tabSettings() const;
     const ExtraEncodingSettings &extraEncodingSettings() const;
+    const FontSettings &fontSettings() const;
 
     void setIndenter(Indenter *indenter);
     Indenter *indenter() const;
@@ -112,10 +114,12 @@ public:
 
 public slots:
     void setTabSettings(const TextEditor::TabSettings &tabSettings);
+    void setFontSettings(const TextEditor::FontSettings &fontSettings);
 
 signals:
     void mimeTypeChanged();
     void tabSettingsChanged();
+    void fontSettingsChanged();
 
 private:
     void cleanWhitespace(QTextCursor &cursor, bool cleanIndentation, bool inEntireDocument);

src/plugins/texteditor/basetexteditor.cpp

@@ -2347,6 +2347,7 @@ BaseTextEditorWidgetPrivate::BaseTextEditorWidgetPrivate()
     m_parenthesesMatchingTimer(0),
     m_extraArea(0),
     m_codeStylePreferences(0),
+    m_fontSettingsNeedsApply(true), // apply when making visible the first time, for the split case
     extraAreaSelectionAnchorBlockNumber(-1),
     extraAreaToggleMarkBlockNumber(-1),
     extraAreaHighlightFoldedBlockNumber(-1),
@@ -2404,6 +2405,7 @@ void BaseTextEditorWidgetPrivate::setupDocumentSignals()
     QObject::connect(m_document.data(), SIGNAL(aboutToReload()), q, SLOT(documentAboutToBeReloaded()));
     QObject::connect(m_document.data(), SIGNAL(reloadFinished(bool)), q, SLOT(documentReloadFinished(bool)));
     QObject::connect(m_document.data(), SIGNAL(tabSettingsChanged()), q, SLOT(updateTabStops()));
+    QObject::connect(m_document.data(), SIGNAL(fontSettingsChanged()), q, SLOT(applyFontSettingsDelayed()));
     q->slotUpdateExtraAreaWidth();
 }
 
@@ -5363,25 +5365,25 @@ void BaseTextEditorWidget::unCommentSelection()
 
 void BaseTextEditorWidget::showEvent(QShowEvent* e)
 {
-    if (!d->m_fontSettings.isEmpty()) {
-        setFontSettings(d->m_fontSettings);
-        d->m_fontSettings.clear();
+    if (d->m_fontSettingsNeedsApply) {
+        applyFontSettings();
+        d->m_fontSettingsNeedsApply = false;
     }
     QPlainTextEdit::showEvent(e);
 }
 
 
-void BaseTextEditorWidget::setFontSettingsIfVisible(const TextEditor::FontSettings &fs)
+void BaseTextEditorWidget::applyFontSettingsDelayed()
 {
-    if (!isVisible()) {
-        d->m_fontSettings = fs;
-        return;
-    }
-    setFontSettings(fs);
+    if (isVisible())
+        applyFontSettings();
+    else
+        d->m_fontSettingsNeedsApply = true;
 }
 
-void BaseTextEditorWidget::setFontSettings(const TextEditor::FontSettings &fs)
+void BaseTextEditorWidget::applyFontSettings()
 {
+    const FontSettings &fs = baseTextDocument()->fontSettings();
     const QTextCharFormat textFormat = fs.toTextCharFormat(C_TEXT);
     const QTextCharFormat selectionFormat = fs.toTextCharFormat(C_SELECTION);
     const QTextCharFormat lineNumberFormat = fs.toTextCharFormat(C_LINE_NUMBER);

src/plugins/texteditor/basetexteditor.h

@@ -343,6 +343,7 @@ private:
 
 protected:
     virtual BaseTextEditor *createEditor() = 0;
+    virtual void applyFontSettings();
 
 private slots:
     void editorContentsChange(int position, int charsRemoved, int charsAdded);
@@ -412,8 +413,6 @@ public slots:
     virtual void format();
     virtual void rewrapParagraph();
     virtual void unCommentSelection();
-    virtual void setFontSettings(const TextEditor::FontSettings &);
-    void setFontSettingsIfVisible(const TextEditor::FontSettings &);
     virtual void setDisplaySettings(const TextEditor::DisplaySettings &);
     virtual void setMarginSettings(const TextEditor::MarginSettings &);
     virtual void setBehaviorSettings(const TextEditor::BehaviorSettings &);
@@ -547,6 +546,7 @@ private:
 private slots:
     void handleBlockSelection(int diff_row, int diff_col);
     void updateTabStops();
+    void applyFontSettingsDelayed();
 
     // parentheses matcher
     void _q_matchParentheses();

src/plugins/texteditor/basetexteditor_p.h

@@ -138,7 +138,7 @@ public:
     ICodeStylePreferences *m_codeStylePreferences;
     DisplaySettings m_displaySettings;
     MarginSettings m_marginSettings;
-    FontSettings m_fontSettings;
+    bool m_fontSettingsNeedsApply;
     BehaviorSettings m_behaviorSettings;
 
     int extraAreaSelectionAnchorBlockNumber;

src/plugins/texteditor/codestyleeditor.cpp

@@ -54,7 +54,7 @@ CodeStyleEditor::CodeStyleEditor(ICodeStylePreferencesFactory *factory,
     CodeStyleSelectorWidget *selector = new CodeStyleSelectorWidget(factory, this);
     selector->setCodeStyle(codeStyle);
     m_preview = new SnippetEditorWidget(this);
-    m_preview->setFontSettings(TextEditorSettings::fontSettings());
+    m_preview->baseTextDocument()->setFontSettings(TextEditorSettings::fontSettings());
     DisplaySettings displaySettings = m_preview->displaySettings();
     displaySettings.m_visualizeWhitespace = true;
     m_preview->setDisplaySettings(displaySettings);

src/plugins/texteditor/plaintexteditor.cpp

@@ -171,7 +171,7 @@ void PlainTextEditorWidget::configure(const MimeType &mimeType)
         }
     }
 
-    setFontSettings(TextEditorSettings::fontSettings());
+    baseTextDocument()->setFontSettings(TextEditorSettings::fontSettings());
 
     emit configured(editor());
 }

src/plugins/texteditor/snippets/snippetssettingspage.cpp

@@ -335,7 +335,7 @@ void SnippetsSettingsPagePrivate::configureUi(QWidget *w)
     foreach (ISnippetProvider *provider, providers) {
         m_ui.groupCombo->addItem(provider->displayName(), provider->groupId());
         SnippetEditorWidget *snippetEditor = new SnippetEditorWidget(w);
-        snippetEditor->setFontSettings(TextEditorSettings::fontSettings());
+        snippetEditor->baseTextDocument()->setFontSettings(TextEditorSettings::fontSettings());
         provider->decorateEditor(snippetEditor);
         m_ui.snippetsEditorStack->insertWidget(m_ui.groupCombo->count() - 1, snippetEditor);
         connect(snippetEditor, SIGNAL(snippetContentChanged()), this, SLOT(setSnippetContent()));
@@ -541,7 +541,7 @@ void SnippetsSettingsPagePrivate::decorateEditors(const TextEditor::FontSettings
         ExtensionSystem::PluginManager::getObjects<ISnippetProvider>();
     for (int i = 0; i < m_ui.groupCombo->count(); ++i) {
         SnippetEditorWidget *snippetEditor = editorAt(i);
-        snippetEditor->setFontSettings(fontSettings);
+        snippetEditor->baseTextDocument()->setFontSettings(fontSettings);
         const QString &id = m_ui.groupCombo->itemData(i).toString();
         // This list should be quite short... Re-iterating over it is ok.
         foreach (const ISnippetProvider *provider, providers) {

src/plugins/texteditor/texteditorsettings.cpp

@@ -335,7 +335,7 @@ void TextEditorSettings::initializeEditor(BaseTextEditorWidget *editor)
 {
     // Connect to settings change signals
     connect(m_instance, SIGNAL(fontSettingsChanged(TextEditor::FontSettings)),
-            editor, SLOT(setFontSettingsIfVisible(TextEditor::FontSettings)));
+            editor->baseTextDocument(), SLOT(setFontSettings(TextEditor::FontSettings)));
     connect(m_instance, SIGNAL(typingSettingsChanged(TextEditor::TypingSettings)),
             editor, SLOT(setTypingSettings(TextEditor::TypingSettings)));
     connect(m_instance, SIGNAL(storageSettingsChanged(TextEditor::StorageSettings)),
@@ -357,7 +357,7 @@ void TextEditorSettings::initializeEditor(BaseTextEditorWidget *editor)
             m_instance, SLOT(zoomResetRequested()));
 
     // Apply current settings
-    editor->setFontSettings(fontSettings());
+    editor->baseTextDocument()->setFontSettings(fontSettings());
     editor->baseTextDocument()->setTabSettings(codeStyle()->tabSettings()); // also set through code style ???
     editor->setTypingSettings(typingSettings());
     editor->setStorageSettings(storageSettings());