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-rw-r--r--FL/Fl_Text_Display.H9
1 files changed, 6 insertions, 3 deletions
diff --git a/FL/Fl_Text_Display.H b/FL/Fl_Text_Display.H
index 0812fe52a..ae5356c00 100644
--- a/FL/Fl_Text_Display.H
+++ b/FL/Fl_Text_Display.H
@@ -287,7 +287,7 @@ public:
\param x number of pixels form the left margin
\return an approximate column number based on the main font
*/
- double x_to_col(double y);
+ double x_to_col(double y) const;
/**
Convert a column number into an x pixel position.
@@ -295,7 +295,7 @@ public:
\return number of pixels form the left margin to the left of an average
sized character
*/
- double col_to_x(double col);
+ double col_to_x(double col) const;
protected:
// Most (all?) of this stuff should only be called from resize() or
@@ -445,7 +445,10 @@ protected:
int mModifyingTabDistance; /* Whether tab distance is being
modified */
- double mColumnScale; /* Width in pixels of an average character */
+ mutable double mColumnScale; /* Width in pixels of an average character. This
+ value is calculated as needed (lazy eval); it
+ needs to be mutable so that it can be calculated
+ within a method marked as "const" */
Fl_Color mCursor_color;