use point as the unit for font size in configuration

RedPandaIDE/editor.cpp

@@ -4078,7 +4078,7 @@ void Editor::applySettings()
     codeFolding().fillIndents = pSettings->editor().fillIndents();
 
     QFont f=QFont(pSettings->editor().fontName());
-    f.setPixelSize(pSettings->editor().fontSize());
+    f.setPixelSize(pointToPixel(pSettings->editor().fontSize()));
     f.setStyleStrategy(QFont::PreferAntialias);
     setFont(f);
 
@@ -4089,10 +4089,10 @@ void Editor::applySettings()
     gutter().setUseFontStyle(pSettings->editor().gutterUseCustomFont());
     if (pSettings->editor().gutterUseCustomFont()) {
         f=QFont(pSettings->editor().gutterFontName());
-        f.setPixelSize(pSettings->editor().gutterFontSize());
+        f.setPixelSize(pointToPixel(pSettings->editor().gutterFontSize()));
     } else {
         f=QFont(pSettings->editor().fontName());
-        f.setPixelSize(pSettings->editor().fontSize());
+        f.setPixelSize(pointToPixel(pSettings->editor().fontSize()));
     }
     f.setStyleStrategy(QFont::PreferAntialias);
     gutter().setFont(f);

RedPandaIDE/mainwindow.cpp

@@ -540,13 +540,13 @@ void MainWindow::applySettings()
     updateEditorColorSchemes();
 
     QFont font(pSettings->environment().interfaceFont());
-    font.setPixelSize(pSettings->environment().interfaceFontSize());
+    font.setPixelSize(pointToPixel(pSettings->environment().interfaceFontSize()));
     font.setStyleStrategy(QFont::PreferAntialias);
     qApp->setFont(font);
     this->setFont(font);
 
     QFont caseEditorFont(pSettings->executor().caseEditorFontName());
-    caseEditorFont.setPixelSize(pSettings->executor().caseEditorFontSize());
+    caseEditorFont.setPixelSize(pointToPixel(pSettings->executor().caseEditorFontSize()));
     font.setStyleStrategy(QFont::PreferAntialias);
     ui->txtProblemCaseInput->setFont(caseEditorFont);
     ui->txtProblemCaseOutput->setFont(caseEditorFont);
@@ -1071,7 +1071,7 @@ void MainWindow::updateCompilerSet()
 void MainWindow::updateDebuggerSettings()
 {
     QFont font(pSettings->debugger().fontName());
-    font.setPixelSize(pSettings->debugger().fontSize());
+    font.setPixelSize(pointToPixel(pSettings->debugger().fontSize()));
     ui->debugConsole->setFont(font);
     ui->txtMemoryView->setFont(font);
     ui->txtLocals->setFont(font);

RedPandaIDE/settings.cpp

@@ -1167,7 +1167,7 @@ void Settings::Editor::doLoad()
     //Font
     //font
     mFontName = stringValue("font_name","consolas");
-    mFontSize = intValue("font_size",16*qApp->desktop()->logicalDpiY()/96);
+    mFontSize = intValue("font_size",14);
     mFontOnlyMonospaced = boolValue("font_only_monospaced",true);
 
     //gutter
@@ -1181,7 +1181,7 @@ void Settings::Editor::doLoad()
     mGutterLineNumbersStartZero = boolValue("gutter_line_numbers_start_zero",false);
     mGutterUseCustomFont = boolValue("gutter_use_custom_font",false);
     mGutterFontName = stringValue("gutter_font_name","consolas");
-    mGutterFontSize = intValue("gutter_font_size",16*qApp->desktop()->logicalDpiY()/96);
+    mGutterFontSize = intValue("gutter_font_size",14);
     mGutterFontOnlyMonospaced = boolValue("gutter_font_only_monospaced",true);
 
     //copy
@@ -2755,7 +2755,7 @@ void Settings::Environment::doLoad()
         }
     }
     mInterfaceFont = stringValue("interface_font",defaultFontName);
-    mInterfaceFontSize = intValue("interface_font_size",12*qApp->desktop()->logicalDpiY()/96);
+    mInterfaceFontSize = intValue("interface_font_size",10);
     mLanguage = stringValue("language", QLocale::system().name());
 
     mCurrentFolder = stringValue("current_folder",QDir::currentPath());
@@ -3007,7 +3007,7 @@ void Settings::Executor::doLoad()
     mCompetivieCompanionPort = intValue("competitive_companion_port",10045);
     mIgnoreSpacesWhenValidatingCases = boolValue("ignore_spaces_when_validating_cases",false);
     mCaseEditorFontName = stringValue("case_editor_font_name","consolas");
-    mCaseEditorFontSize = intValue("case_editor_font_size",14*qApp->desktop()->logicalDpiY()/96);
+    mCaseEditorFontSize = intValue("case_editor_font_size",10);
     mCaseEditorFontOnlyMonospaced = boolValue("case_editor_font_only_monospaced",true);
 }
 
@@ -3171,7 +3171,7 @@ void Settings::Debugger::doLoad()
     mShowDetailLog = boolValue("show_detail_log",false);
     mFontName = stringValue("font_name","Consolas");
     mOnlyShowMono = boolValue("only_show_mono",true);
-    mFontSize = intValue("font_size",12*qApp->desktop()->logicalDpiY()/96);
+    mFontSize = intValue("font_size",12);
     mUseIntelStyle = boolValue("use_intel_style",true);
     mBlendMode = boolValue("blend_mode",true);
     mSkipSystemLibraries = boolValue("skip_system_lib",true);

RedPandaIDE/utils.cpp

@@ -15,6 +15,7 @@
 #include <QStyleFactory>
 #include <QDateTime>
 #include <QColor>
+#include <QDesktopWidget>
 #include "parser/cppparser.h"
 #include "settings.h"
 #include "mainwindow.h"
@@ -957,3 +958,13 @@ QString localizePath(const QString &path)
     result.replace("/",QDir::separator());
     return result;
 }
+
+float pointToPixel(float point)
+{
+    return point * qApp->desktop()->logicalDpiY() / 72;
+}
+
+float pixelToPoint(float pixel)
+{
+    return pixel * 72 / qApp->desktop()->logicalDpiY();
+}

RedPandaIDE/utils.h

@@ -204,6 +204,9 @@ bool readRegistry(HKEY key,const QByteArray& subKey, const QByteArray& name, QSt
 class CppParser;
 void resetCppParser(std::shared_ptr<CppParser> parser);
 
+float pointToPixel(float point);
+float pixelToPoint(float pixel);
+
 
 /**
  * from https://github.com/Microsoft/GSL