Polish charactermap example

- Use Qt 5 connection syntax.
- Introduce helper function to calculate the square size, remove
  the existing 24 pixel limitation since that makes it impossible
  to render 20pt fonts.
- Add filter chooser for font filters.
- Add menu and info dialog showing DPI and default fonts.
- Streamline code

Change-Id: I0cd4d0475b5a7ed3c475de7a413abebbe688dfe2
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/examples/widgets/widgets/charactermap/characterwidget.h b/examples/widgets/widgets/charactermap/characterwidget.h
index d1c0f28bc4..e195c177d0 100644
--- a/examples/widgets/widgets/charactermap/characterwidget.h
+++ b/examples/widgets/widgets/charactermap/characterwidget.h
@@ -76,6 +76,8 @@ protected:
     void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
 
 private:
+    void calculateSquareSize();
+
     QFont displayFont;
     int columns;
     int lastKey;