Use QMessageBox for toggleWarning if possible

[lyx.git] / src / frontends / Painter.h

diff --git a/src/frontends/Painter.h b/src/frontends/Painter.h
index e515c5fe484dd1b89ffe4707d1533f5596313197..17253b2f44dae76fb7d5eebcb55f01bd5d28eb51 100644 (file)
--- a/src/frontends/Painter.h
+++ b/src/frontends/Painter.h
@@ -49,7 +49,7 @@ namespace frontend {
  */
 class Painter {
 public:
-       Painter(double pixel_ratio) : drawing_enabled_(true), pixel_ratio_(pixel_ratio) {}
+       Painter(double pixel_ratio) : pixel_ratio_(pixel_ratio) {}
 
        static const int thin_line;
 
@@ -147,11 +147,8 @@ public:
                          Color other, size_type from, size_type to,
                       double wordspacing, double textwidth) = 0;
 
-       void setDrawingEnabled(bool drawing_enabled)
-       { drawing_enabled_ = drawing_enabled; }
-
-       /// Indicate wether real screen drawing shall be done or not.
-       bool isDrawingEnabled() const { return drawing_enabled_; }
+       // Returns true if the painter does not actually paint.
+       virtual bool isNull() const = 0;
 
        double pixelRatio() const { return pixel_ratio_; }
 
@@ -176,15 +173,13 @@ public:
                char_type c, FontInfo const & f, preedit_style style) = 0;
 
        /// start monochrome painting mode, i.e. map every color into [min,max]
-       virtual void enterMonochromeMode(Color const & min, 
+       virtual void enterMonochromeMode(Color const & min,
                Color const & max) = 0;
        /// leave monochrome painting mode
        virtual void leaveMonochromeMode() = 0;
        /// draws a wavy line that can be used for underlining.
        virtual void wavyHorizontalLine(int x, int y, int width, ColorCode col) = 0;
 private:
-       ///
-       bool drawing_enabled_;
        /// Ratio between physical pixels and device-independent pixels
        double pixel_ratio_;
 };