- enhancement: setting non-ascii font for editors

NEWS.md

@@ -7,6 +7,7 @@ Red Panda C++ Version 0.13.4
   - fix: static members are not correct shown after Classname + '::'
   - enhancement: show parameter tips for class constructors
   - enhancement: when there are tips showing, don't show mouse tips
+  - enhancement: setting non-ascii font for editors
 
 Red Panda C++ Version 0.13.3
   - enhancement: restore editor position after rename symbol

RedPandaIDE/editor.cpp

@@ -4170,6 +4170,10 @@ void Editor::applySettings()
     f.setPixelSize(pointToPixel(pSettings->editor().fontSize()));
     f.setStyleStrategy(QFont::PreferAntialias);
     setFont(f);
+    QFont f2=QFont(pSettings->editor().nonAsciiFontName());
+    f2.setPixelSize(pointToPixel(pSettings->editor().fontSize()));
+    f2.setStyleStrategy(QFont::PreferAntialias);
+    setFontForNonAscii(f2);
 
     // Set gutter properties
     gutter().setLeftOffset(pointToPixel(pSettings->editor().fontSize()) + pSettings->editor().gutterLeftOffset());

RedPandaIDE/qsynedit/SynEdit.cpp

@@ -69,6 +69,8 @@ SynEdit::SynEdit(QWidget *parent) : QAbstractScrollArea(parent)
     mFontDummy.setStyleStrategy(QFont::PreferAntialias);
     setFont(mFontDummy);
 
+    setFontForNonAscii(mFontDummy);
+
     mUndoList = std::make_shared<SynEditUndoList>();
     mUndoList->connect(mUndoList.get(), &SynEditUndoList::addedUndo, this, &SynEdit::onUndoAdded);
     mOrigUndoList = mUndoList;
@@ -3103,14 +3105,21 @@ void SynEdit::recalcCharExtent()
     mTextHeight  = 0;
     mCharWidth = 0;
     QFontMetrics fm(font());
-    mTextHeight = fm.lineSpacing();
+    QFontMetrics fm2(font());
+    mTextHeight = std::max(fm.lineSpacing(),fm2.lineSpacing());
     mCharWidth = fm.horizontalAdvance("M");
+
     if (hasStyles[0]) { // has bold font
         QFont f = font();
         f.setBold(true);
         QFontMetrics fm(f);
+        QFont f2 = font();
+        f2.setBold(true);
+        QFontMetrics fm2(f);
         if (fm.lineSpacing()>mTextHeight)
             mTextHeight=fm.lineSpacing();
+        if (fm2.lineSpacing()>mTextHeight)
+            mTextHeight=fm2.lineSpacing();
         if (fm.horizontalAdvance("M")>mCharWidth)
             mCharWidth = fm.horizontalAdvance("M");
     }
@@ -3118,8 +3127,13 @@ void SynEdit::recalcCharExtent()
         QFont f = font();
         f.setItalic(true);
         QFontMetrics fm(f);
+        QFont f2 = font();
+        f2.setItalic(true);
+        QFontMetrics fm2(f);
         if (fm.lineSpacing()>mTextHeight)
             mTextHeight=fm.lineSpacing();
+        if (fm2.lineSpacing()>mTextHeight)
+            mTextHeight=fm2.lineSpacing();
         if (fm.horizontalAdvance("M")>mCharWidth)
             mCharWidth = fm.horizontalAdvance("M");
     }
@@ -3127,8 +3141,13 @@ void SynEdit::recalcCharExtent()
         QFont f = font();
         f.setStrikeOut(true);
         QFontMetrics fm(f);
+        QFont f2 = font();
+        f2.setStrikeOut(true);
+        QFontMetrics fm2(f);
         if (fm.lineSpacing()>mTextHeight)
             mTextHeight=fm.lineSpacing();
+        if (fm2.lineSpacing()>mTextHeight)
+            mTextHeight=fm2.lineSpacing();
         if (fm.horizontalAdvance("M")>mCharWidth)
             mCharWidth = fm.horizontalAdvance("M");
     }
@@ -3136,8 +3155,13 @@ void SynEdit::recalcCharExtent()
         QFont f = font();
         f.setUnderline(true);
         QFontMetrics fm(f);
+        QFont f2 = font();
+        f2.setUnderline(true);
+        QFontMetrics fm2(f);
         if (fm.lineSpacing()>mTextHeight)
             mTextHeight=fm.lineSpacing();
+        if (fm2.lineSpacing()>mTextHeight)
+            mTextHeight=fm2.lineSpacing();
         if (fm.horizontalAdvance("M")>mCharWidth)
             mCharWidth = fm.horizontalAdvance("M");
     }
@@ -3736,6 +3760,17 @@ void SynEdit::onScrolled(int)
     invalidate();
 }
 
+const QFont &SynEdit::fontForNonAscii() const
+{
+    return mFontForNonAscii;
+}
+
+void SynEdit::setFontForNonAscii(const QFont &newFontForNonAscii)
+{
+    mFontForNonAscii = newFontForNonAscii;
+    mFontForNonAscii.setStyleStrategy(QFont::PreferAntialias);
+}
+
 const QColor &SynEdit::backgroundColor() const
 {
     return mBackgroundColor;

RedPandaIDE/qsynedit/SynEdit.h

@@ -619,6 +619,7 @@ private:
     int mCharsInWindow;
     int mCharWidth;
     QFont mFontDummy;
+    QFont mFontForNonAscii;
     SynFontSmoothMethod mFontSmoothing;
     bool mMouseMoved;
     /* IME input */
@@ -756,6 +757,9 @@ public:
 QVariant inputMethodQuery(Qt::InputMethodQuery property) const override;
 
 // QWidget interface
+const QFont &fontForNonAscii() const;
+void setFontForNonAscii(const QFont &newFontForNonAscii);
+
 protected:
 void dragEnterEvent(QDragEnterEvent *event) override;
 void dropEvent(QDropEvent *event) override;

RedPandaIDE/qsynedit/TextPainter.cpp

@@ -381,7 +381,9 @@ int SynEditTextPainter::ColumnToXValue(int Col)
     return edit->textOffset() + (Col - 1) * edit->mCharWidth;
 }
 
-void SynEditTextPainter::PaintToken(const QString &Token, int TokenCols, int ColumnsBefore, int First, int Last, bool)
+void SynEditTextPainter::PaintToken(const QString &Token, int TokenCols, int ColumnsBefore,
+                                    int First, int Last, bool /*isSelection*/, const QFont& font,
+                                    const QFont& fontForNonAscii)
 {
     bool startPaint;
     int nX;
@@ -446,7 +448,13 @@ void SynEditTextPainter::PaintToken(const QString &Token, int TokenCols, int Col
                         }
                     }
                     if (!drawed) {
-                        painter->drawText(nX,rcToken.bottom()-painter->fontMetrics().descent() , Token[i]);
+                        if (Token[i].unicode()<=255)
+                            painter->drawText(nX,rcToken.bottom()-painter->fontMetrics().descent() , Token[i]);
+                        else {
+                            painter->setFont(fontForNonAscii);
+                            painter->drawText(nX,rcToken.bottom()-painter->fontMetrics().descent() , Token[i]);
+                            painter->setFont(font);
+                        }
                         drawed = true;
                     }
                     nX += charCols * edit->mCharWidth;
@@ -552,30 +560,36 @@ void SynEditTextPainter::PaintHighlightToken(bool bFillToEOL)
         font.setStrikeOut(TokenAccu.Style & SynFontStyle::fsStrikeOut);
         font.setUnderline(TokenAccu.Style & SynFontStyle::fsUnderline);
         painter->setFont(font);
+        QFont nonAsciiFont = edit->fontForNonAscii();
+        nonAsciiFont.setBold(TokenAccu.Style & SynFontStyle::fsBold);
+        nonAsciiFont.setItalic(TokenAccu.Style & SynFontStyle::fsItalic);
+        nonAsciiFont.setStrikeOut(TokenAccu.Style & SynFontStyle::fsStrikeOut);
+        nonAsciiFont.setUnderline(TokenAccu.Style & SynFontStyle::fsUnderline);
+
         // Paint the chars
         if (bComplexToken) {
             // first unselected part of the token
             if (bU1) {
                 setDrawingColors(false);
                 rcToken.setRight(ColumnToXValue(nLineSelStart));
-                PaintToken(TokenAccu.s,TokenAccu.Columns,TokenAccu.ColumnsBefore,nC1,nLineSelStart,false);
+                PaintToken(TokenAccu.s,TokenAccu.Columns,TokenAccu.ColumnsBefore,nC1,nLineSelStart,false,font,nonAsciiFont);
             }
             // selected part of the token
             setDrawingColors(true);
             nC1Sel = std::max(nLineSelStart, nC1);
             nC2Sel = std::min(nLineSelEnd, nC2);
             rcToken.setRight(ColumnToXValue(nC2Sel));
-            PaintToken(TokenAccu.s, TokenAccu.Columns, TokenAccu.ColumnsBefore, nC1Sel, nC2Sel,true);
+            PaintToken(TokenAccu.s, TokenAccu.Columns, TokenAccu.ColumnsBefore, nC1Sel, nC2Sel,true,font,nonAsciiFont);
             // second unselected part of the token
             if (bU2) {
                 setDrawingColors(false);
                 rcToken.setRight(ColumnToXValue(nC2));
-                PaintToken(TokenAccu.s, TokenAccu.Columns, TokenAccu.ColumnsBefore,nLineSelEnd, nC2,false);
+                PaintToken(TokenAccu.s, TokenAccu.Columns, TokenAccu.ColumnsBefore,nLineSelEnd, nC2,false,font,nonAsciiFont);
             }
         } else {
             setDrawingColors(bSel);
             rcToken.setRight(ColumnToXValue(nC2));
-            PaintToken(TokenAccu.s, TokenAccu.Columns, TokenAccu.ColumnsBefore, nC1, nC2,bSel);
+            PaintToken(TokenAccu.s, TokenAccu.Columns, TokenAccu.ColumnsBefore, nC1, nC2,bSel,font,nonAsciiFont);
         }
     }
 
@@ -941,17 +955,17 @@ void SynEditTextPainter::PaintLines()
                   setDrawingColors(true);
                   rcToken.setLeft(std::max(rcLine.left(), ColumnToXValue(nLineSelStart)));
                   rcToken.setRight(std::min(rcLine.right(), ColumnToXValue(nLineSelEnd)));
-                  PaintToken(sToken, nTokenColumnLen, 0, nLineSelStart, nLineSelEnd,false);
+                  PaintToken(sToken, nTokenColumnLen, 0, nLineSelStart, nLineSelEnd,false,edit->font(),edit->fontForNonAscii());
                   setDrawingColors(false);
                   rcToken.setLeft(std::max(rcLine.left(), ColumnToXValue(FirstCol)));
                   rcToken.setRight(std::min(rcLine.right(), ColumnToXValue(nLineSelStart)));
-                  PaintToken(sToken, nTokenColumnLen, 0, FirstCol, nLineSelStart,false);
+                  PaintToken(sToken, nTokenColumnLen, 0, FirstCol, nLineSelStart,false,edit->font(),edit->fontForNonAscii());
                   rcToken.setLeft(std::max(rcLine.left(), ColumnToXValue(nLineSelEnd)));
                   rcToken.setRight(std::min(rcLine.right(), ColumnToXValue(LastCol)));
-                  PaintToken(sToken, nTokenColumnLen, 0, nLineSelEnd, LastCol,true);
+                  PaintToken(sToken, nTokenColumnLen, 0, nLineSelEnd, LastCol,true,edit->font(),edit->fontForNonAscii());
               } else {
                   setDrawingColors(bLineSelected);
-                  PaintToken(sToken, nTokenColumnLen, 0, FirstCol, LastCol,bLineSelected);
+                  PaintToken(sToken, nTokenColumnLen, 0, FirstCol, LastCol,bLineSelected,edit->font(),edit->fontForNonAscii());
               }
               //Paint editingAreaBorders
               if (bCurrentLine && edit->mInputPreeditString.length()>0) {

RedPandaIDE/qsynedit/TextPainter.h

@@ -49,7 +49,8 @@ private:
     void setDrawingColors(bool Selected);
     int ColumnToXValue(int Col);
     void PaintToken(const QString& Token, int TokenLen, int ColumnsBefore,
-                    int First, int Last, bool isSelection);
+                    int First, int Last, bool isSelection, const QFont& font,
+                    const QFont& fontForNonAscii);
     void PaintEditAreas(const SynEditingAreaList& areaList);
     void PaintHighlightToken(bool bFillToEOL);
     bool TokenIsSpaces(bool& bSpacesTest, const QString& Token, bool& bIsSpaces);

RedPandaIDE/settings.cpp

@@ -588,6 +588,16 @@ void Settings::Editor::setEnableLigaturesSupport(bool newEnableLigaturesSupport)
     mEnableLigaturesSupport = newEnableLigaturesSupport;
 }
 
+const QString &Settings::Editor::nonAsciiFontName() const
+{
+    return mNonAsciiFontName;
+}
+
+void Settings::Editor::setNonAsciiFontName(const QString &newNonAsciiFontName)
+{
+    mNonAsciiFontName = newNonAsciiFontName;
+}
+
 bool Settings::Editor::highlightCurrentWord() const
 {
     return mHighlightCurrentWord;
@@ -1097,9 +1107,10 @@ void Settings::Editor::doSave()
 
     //Font
     //font
-    saveValue("font_name",mFontName);
+    saveValue("font_name", mFontName);
+    saveValue("non_ascii_font_name", mNonAsciiFontName);
     saveValue("font_size", mFontSize);
-    saveValue("font_only_monospaced",mFontOnlyMonospaced);
+    saveValue("font_only_monospaced", mFontOnlyMonospaced);
     saveValue("enable_ligatures_support", mEnableLigaturesSupport);
 
     //gutter
@@ -1215,8 +1226,10 @@ void Settings::Editor::doLoad()
     //Font
 #ifdef Q_OS_WIN
     mFontName = stringValue("font_name","consolas");
+    mNonAsciiFontName = stringValue("non_ascii_font_name","consolas");
 #else
     mFontName = stringValue("font_name","Dejavu Sans Mono");
+    mNonAsciiFontName = stringValue("non_ascii_font_name","Dejavu Sans Mono");
 #endif
     mFontSize = intValue("font_size",14);
     mFontOnlyMonospaced = boolValue("font_only_monospaced",true);

RedPandaIDE/settings.h

@@ -366,6 +366,9 @@ public:
         bool enableLigaturesSupport() const;
         void setEnableLigaturesSupport(bool newEnableLigaturesSupport);
 
+        const QString &nonAsciiFontName() const;
+        void setNonAsciiFontName(const QString &newNonAsciiFontName);
+
     private:
         //General
         // indents
@@ -405,6 +408,7 @@ public:
         //Font
         //font
         QString mFontName;
+        QString mNonAsciiFontName;
         int mFontSize;
         bool mFontOnlyMonospaced;
 

RedPandaIDE/settingsdialog/editorfontwidget.cpp

@@ -56,6 +56,7 @@ void EditorFontWidget::doLoad()
     //font
     ui->chkOnlyMonospacedFonts->setChecked(pSettings->editor().fontOnlyMonospaced());
     ui->cbFont->setCurrentFont(QFont(pSettings->editor().fontName()));
+    ui->cbNonAsciiFont->setCurrentFont(QFont(pSettings->editor().nonAsciiFontName()));
     ui->spinFontSize->setValue(pSettings->editor().fontSize());
     ui->chkLigature->setChecked(pSettings->editor().enableLigaturesSupport());
 
@@ -79,6 +80,7 @@ void EditorFontWidget::doSave()
     //font
     pSettings->editor().setFontOnlyMonospaced(ui->chkOnlyMonospacedFonts->isChecked());
     pSettings->editor().setFontName(ui->cbFont->currentFont().family());
+    pSettings->editor().setNonAsciiFontName(ui->cbNonAsciiFont->currentFont().family());
     pSettings->editor().setFontSize(ui->spinFontSize->value());
     pSettings->editor().setEnableLigaturesSupport(ui->chkLigature->isChecked());
 

RedPandaIDE/settingsdialog/editorfontwidget.ui

@@ -133,6 +133,47 @@
         </property>
        </widget>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_8">
+        <property name="text">
+         <string>Font for non-ascii Text:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QWidget" name="widget_9" native="true">
+        <layout class="QHBoxLayout" name="horizontalLayout_7">
+         <property name="leftMargin">
+          <number>0</number>
+         </property>
+         <property name="topMargin">
+          <number>0</number>
+         </property>
+         <property name="rightMargin">
+          <number>0</number>
+         </property>
+         <property name="bottomMargin">
+          <number>0</number>
+         </property>
+         <item>
+          <widget class="QFontComboBox" name="cbNonAsciiFont"/>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_7">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>