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/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk1/control.cpp
// Purpose: wxControl implementation for wxGTK
// Author: Robert Roebling
// Copyright: (c) 1998 Robert Roebling, Julian Smart and Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_CONTROLS
#include "wx/control.h"
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/settings.h"
#endif
#include "wx/fontutil.h"
#include "wx/gtk1/private.h"
// ============================================================================
// wxControl implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxControl creation
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow)
wxControl::wxControl()
{
m_needParent = true;
}
bool wxControl::Create( wxWindow *parent,
wxWindowID id,
const wxPoint &pos,
const wxSize &size,
long style,
const wxValidator& validator,
const wxString &name )
{
bool ret = wxWindow::Create(parent, id, pos, size, style, name);
#if wxUSE_VALIDATORS
SetValidator(validator);
#endif
return ret;
}
wxSize wxControl::DoGetBestSize() const
{
// Do not return any arbitrary default value...
wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") );
GtkRequisition req;
req.width = 2;
req.height = 2;
(* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request )
(m_widget, &req );
wxSize best(req.width, req.height);
CacheBestSize(best);
return best;
}
void wxControl::PostCreation(const wxSize& size)
{
wxWindow::PostCreation();
// NB: GetBestSize needs to know the style, otherwise it will assume
// default font and if the user uses a different font, determined
// best size will be different (typically, smaller) than the desired
// size. This call ensure that a style is available at the time
// GetBestSize is called.
gtk_widget_ensure_style(m_widget);
ApplyWidgetStyle();
SetInitialSize(size);
}
// ----------------------------------------------------------------------------
// wxControl dealing with labels
// ----------------------------------------------------------------------------
void wxControl::SetLabel( const wxString &label )
{
// keep the original string internally to be able to return it later (for
// consistency with the other ports)
m_label = label;
InvalidateBestSize();
}
wxString wxControl::GetLabel() const
{
return m_label;
}
void wxControl::GTKSetLabelForLabel(GtkLabel *w, const wxString& label)
{
// don't call the virtual function which might call this one back again
wxControl::SetLabel(label);
const wxString labelGTK = GTKRemoveMnemonics(label);
gtk_label_set(w, wxGTK_CONV(labelGTK));
}
void wxControl::GTKSetLabelForFrame(GtkFrame *w, const wxString& label)
{
wxControl::SetLabel(label);
const wxString labelGTK = GTKRemoveMnemonics(label);
gtk_frame_set_label(w, labelGTK.empty() ? (const char *)NULL
: wxGTK_CONV(labelGTK));
}
/* static */
wxString wxControl::GTKRemoveMnemonics(const wxString& label)
{
const size_t len = label.length();
wxString labelGTK;
labelGTK.reserve(len);
for ( size_t i = 0; i < len; i++ )
{
wxChar ch = label[i];
if ( ch == wxT('&') )
{
if ( i == len - 1 )
{
// "&" at the end of string is an error
wxLogDebug(wxT("Invalid label \"%s\"."), label.c_str());
break;
}
ch = label[++i]; // skip '&' itself
if ( ch == wxT('&') )
{
// special case: "&&" is not a mnemonic at all but just an
// escaped "&"
labelGTK += wxT('&');
continue;
}
}
labelGTK += ch;
}
return labelGTK;
}
// ----------------------------------------------------------------------------
// wxControl styles (a.k.a. attributes)
// ----------------------------------------------------------------------------
wxVisualAttributes wxControl::GetDefaultAttributes() const
{
return GetDefaultAttributesFromGTKWidget(m_widget,
UseGTKStyleBase());
}
#define SHIFT (8*(sizeof(short int)-sizeof(char)))
// static
wxVisualAttributes
wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget,
bool useBase,
int state)
{
GtkStyle* style;
wxVisualAttributes attr;
style = gtk_rc_get_style(widget);
if (!style)
style = gtk_widget_get_default_style();
if (!style)
{
return wxWindow::GetClassDefaultAttributes(wxWINDOW_VARIANT_NORMAL);
}
if (state == -1)
state = GTK_STATE_NORMAL;
// get the style's colours
attr.colFg = wxColour(style->fg[state].red >> SHIFT,
style->fg[state].green >> SHIFT,
style->fg[state].blue >> SHIFT);
if (useBase)
attr.colBg = wxColour(style->base[state].red >> SHIFT,
style->base[state].green >> SHIFT,
style->base[state].blue >> SHIFT);
else
attr.colBg = wxColour(style->bg[state].red >> SHIFT,
style->bg[state].green >> SHIFT,
style->bg[state].blue >> SHIFT);
// get the style's font
// TODO: isn't there a way to get a standard gtk 1.2 font?
attr.font = wxFont( 12, wxSWISS, wxNORMAL, wxNORMAL );
return attr;
}
//static
wxVisualAttributes
wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNew_t widget_new,
bool useBase,
int state)
{
wxVisualAttributes attr;
// NB: we need toplevel window so that GTK+ can find the right style
GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
GtkWidget* widget = widget_new();
gtk_container_add(GTK_CONTAINER(wnd), widget);
attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
gtk_widget_destroy(wnd);
return attr;
}
//static
wxVisualAttributes
wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromStr_t widget_new,
bool useBase,
int state)
{
wxVisualAttributes attr;
// NB: we need toplevel window so that GTK+ can find the right style
GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
GtkWidget* widget = widget_new("");
gtk_container_add(GTK_CONTAINER(wnd), widget);
attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
gtk_widget_destroy(wnd);
return attr;
}
//static
wxVisualAttributes
wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromAdj_t widget_new,
bool useBase,
int state)
{
wxVisualAttributes attr;
// NB: we need toplevel window so that GTK+ can find the right style
GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL);
GtkWidget* widget = widget_new(NULL);
gtk_container_add(GTK_CONTAINER(wnd), widget);
attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state);
gtk_widget_destroy(wnd);
return attr;
}
#endif // wxUSE_CONTROLS
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