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fix for scrollbar rounding errors

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9789 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2001-04-19 11:13:14 +00:00
parent c9cb56f7f2
commit a9f21e71d6
2 changed files with 4 additions and 4 deletions
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4
src/gtk/scrolbar.cpp
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@@ -64,7 +64,7 @@ static void gtk_scrollbar_callback( GtkAdjustment *adjust, wxScrollBar *win )
else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN; else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN;
double dvalue = adjust->value; double dvalue = adjust->value;
int value = (int)(dvalue >= 0 ? dvalue - 0.5 : dvalue + 0.5); int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5);
int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL; int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
@@ -186,7 +186,7 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
int wxScrollBar::GetThumbPosition() const int wxScrollBar::GetThumbPosition() const
{ {
double val = m_adjust->value; double val = m_adjust->value;
return (int)(val >= 0 ? val - 0.5 : val + 0.5); return (int)(val < 0 ? val - 0.5 : val + 0.5);
} }
int wxScrollBar::GetThumbSize() const int wxScrollBar::GetThumbSize() const

4
src/gtk1/scrolbar.cpp
View File

@@ -64,7 +64,7 @@ static void gtk_scrollbar_callback( GtkAdjustment *adjust, wxScrollBar *win )
else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN; else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN;
double dvalue = adjust->value; double dvalue = adjust->value;
int value = (int)(dvalue >= 0 ? dvalue - 0.5 : dvalue + 0.5); int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5);
int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL; int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
@@ -186,7 +186,7 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
int wxScrollBar::GetThumbPosition() const int wxScrollBar::GetThumbPosition() const
{ {
double val = m_adjust->value; double val = m_adjust->value;
return (int)(val >= 0 ? val - 0.5 : val + 0.5); return (int)(val < 0 ? val - 0.5 : val + 0.5);
} }
int wxScrollBar::GetThumbSize() const int wxScrollBar::GetThumbSize() const