Fix showing slider label in wxMSW when wxSL_MIN_MAX_LABELS was not used.

wxSlider with wxSL_LABELS style but without wxSL_MIN_MAX_LABELS didn't show
the current value because the width of the value label was 0.

Fix this by always computing the widths of min and max labels and using the
longest of them for the value label, even if we don't actually show them.

Closes #13291.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68230 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/msw/slider.h b/include/wx/msw/slider.h
index d6c2400cd316083dc2f964079c7589093b88002a..23de38a6077c33672d00ecaa53dfd312eb83275a 100644 (file)
--- a/include/wx/msw/slider.h
+++ b/include/wx/msw/slider.h
@@ -106,6 +106,10 @@ protected:
     wxRect GetBoundingBox() const;
 
     // Get the height and, if the pointers are non NULL, widths of both labels.
+    //
+    // Notice that the return value will be 0 if we don't have wxSL_LABELS
+    // style but we do fill widthMin and widthMax even if we don't have
+    // wxSL_MIN_MAX_LABELS style set so the caller should account for it.
     int GetLabelsSize(int *widthMin = NULL, int *widthMax = NULL) const;
 
 

diff --git a/src/msw/slider.cpp b/src/msw/slider.cpp
index b2df912ba1c5d99fd2f1c8816db3b8de0a45850a..f7aefdd5998521561775c0571931916d270d577e 100644 (file)
--- a/src/msw/slider.cpp
+++ b/src/msw/slider.cpp
@@ -369,16 +369,8 @@ int wxSlider::GetLabelsSize(int *widthMin, int *widthMax) const
 {
     if ( widthMin && widthMax )
     {
-        if ( HasFlag(wxSL_MIN_MAX_LABELS) )
-        {
-            *widthMin = GetTextExtent(Format(m_rangeMin)).x;
-            *widthMax = GetTextExtent(Format(m_rangeMax)).x;
-        }
-        else
-        {
-            *widthMin =
-            *widthMax = 0;
-        }
+        *widthMin = GetTextExtent(Format(m_rangeMin)).x;
+        *widthMax = GetTextExtent(Format(m_rangeMax)).x;
     }
 
     return HasFlag(wxSL_LABELS) ? GetCharHeight() : 0;
@@ -398,6 +390,11 @@ void wxSlider::DoMoveWindow(int x, int y, int width, int height)
         maxLabelWidth;
     const int labelHeight = GetLabelsSize(&minLabelWidth, &maxLabelWidth);
     const int longestLabelWidth = wxMax(minLabelWidth, maxLabelWidth);
+    if ( !HasFlag(wxSL_MIN_MAX_LABELS) )
+    {
+        minLabelWidth =
+        maxLabelWidth = 0;
+    }
 
     int labelOffset =  0;
     int tickOffset = 0;
@@ -594,7 +591,8 @@ wxSize wxSlider::DoGetBestSize() const
             int hLabel = GetLabelsSize(&widthMin, &widthMax);
 
             // account for the labels
-            size.x += HGAP + wxMax(widthMin, widthMax);
+            if ( HasFlag(wxSL_MIN_MAX_LABELS) )
+                size.x += HGAP + wxMax(widthMin, widthMax);
 
             // labels are indented relative to the slider itself
             size.y += hLabel;