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implemented ScrollLines/Pages() for GTK+ 2

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28441 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2004-07-23 21:32:44 +00:00
parent acfb5554ed
commit 1ce52aa64b
3 changed files with 31 additions and 28 deletions
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29
src/gtk/textctrl.cpp
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@@ -1718,16 +1718,18 @@ void wxTextCtrl::Thaw()
GtkAdjustment *wxTextCtrl::GetVAdj() const
{
if ( !IsMultiLine() )
return NULL;
#ifdef __WXGTK20__
return NULL;
return gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_widget));
#else
return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL;
return GTK_TEXT(m_text)->vadj;
#endif
}
bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
{
#ifndef __WXGTK20__
float value = adj->value + diff;
if ( value < 0 )
@@ -1746,39 +1748,38 @@ bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff)
adj->value = value;
#ifdef __WXGTK20__
gtk_adjustment_value_changed(GTK_ADJUSTMENT(adj));
#else
gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed");
#endif
return TRUE;
}
bool wxTextCtrl::ScrollLines(int lines)
{
#ifdef __WXGTK20__
return FALSE;
#else
GtkAdjustment *adj = GetVAdj();
if ( !adj )
return FALSE;
#ifdef __WXGTK20__
int diff = (int)ceil(lines*adj->step_increment);
#else
// this is hardcoded to 10 in GTK+ 1.2 (great idea)
static const int KEY_SCROLL_PIXELS = 10;
return DoScroll(adj, lines*KEY_SCROLL_PIXELS);
int diff = 10*lines;
#endif
return DoScroll(adj, diff);
}
bool wxTextCtrl::ScrollPages(int pages)
{
#ifdef __WXGTK20__
return FALSE;
#else
GtkAdjustment *adj = GetVAdj();
if ( !adj )
return FALSE;
return DoScroll(adj, (int)ceil(pages*adj->page_increment));
#endif
}