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wxWindows-2.4.0
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statusbr.cpp
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2002-11-22
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/////////////////////////////////////////////////////////////////////////////
// Name: generic/statusbr.cpp
// Purpose: wxStatusBarGeneric class implementation
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id: statusbr.cpp,v 1.47.2.3 2002/11/22 07:13:39 GD Exp $
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "statusbr.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_STATUSBAR
#ifndef WX_PRECOMP
#include "wx/setup.h"
#include "wx/frame.h"
#include "wx/settings.h"
#include "wx/dcclient.h"
#endif
#ifdef __WXGTK20__
#include "wx/gtk/private.h"
#include "wx/gtk/win_gtk.h"
#endif
#include "wx/statusbr.h"
// we only have to do it here when we use wxStatusBarGeneric in addition to the
// standard wxStatusBar class, if wxStatusBarGeneric is the same as
// wxStatusBar, then the corresponding IMPLEMENT_DYNAMIC_CLASS is already in
// common/statbar.cpp
#if defined(__WXMAC__) || \
(defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR)
#include "wx/generic/statusbr.h"
IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
#endif // wxUSE_NATIVE_STATUSBAR
BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
EVT_PAINT(wxStatusBarGeneric::OnPaint)
EVT_LEFT_DOWN(wxStatusBarGeneric::OnLeftDown)
EVT_RIGHT_DOWN(wxStatusBarGeneric::OnRightDown)
EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
END_EVENT_TABLE()
// Default status border dimensions
#define wxTHICK_LINE_BORDER 2
#define wxTHICK_LINE_WIDTH 1
void wxStatusBarGeneric::Init()
{
m_borderX = wxTHICK_LINE_BORDER;
m_borderY = wxTHICK_LINE_BORDER;
}
wxStatusBarGeneric::~wxStatusBarGeneric()
{
// VZ: what is this for? please comment...
#ifdef __WXMSW__
SetFont(wxNullFont);
#endif // MSW
}
bool wxStatusBarGeneric::Create(wxWindow *parent,
wxWindowID id,
long style,
const wxString& name)
{
if ( !wxWindow::Create(parent, id,
wxDefaultPosition, wxDefaultSize,
style | wxTAB_TRAVERSAL, name) )
return FALSE;
// The status bar should have a themed background
SetThemeEnabled( TRUE );
// Don't wish this to be found as a child
#ifndef __WXMAC__
parent->GetChildren().DeleteObject(this);
#endif
InitColours();
SetFont(m_defaultStatusBarFont);
// Set the height according to the font and the border size
wxClientDC dc(this);
dc.SetFont(GetFont());
wxCoord y;
dc.GetTextExtent(_T("X"), NULL, &y );
int height = (int)( (11*y)/10 + 2*GetBorderY());
SetSize(-1, -1, -1, height);
return TRUE;
}
void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
{
wxASSERT_MSG( number >= 0, _T("negative number of fields in wxStatusBar?") );
int i;
for(i = m_nFields; i < number; ++i)
m_statusStrings.Add( wxEmptyString );
for (i = m_nFields - 1; i >= number; --i)
m_statusStrings.RemoveAt(i);
m_nFields = number;
wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
_T("This really should never happen, can we do away with m_nFields here?") );
SetStatusWidths(number, widths);
}
void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
{
wxCHECK_RET( (number >= 0) && (number < m_nFields),
_T("invalid status bar field index") );
m_statusStrings[number] = text;
wxRect rect;
GetFieldRect(number, rect);
Refresh( TRUE, &rect );
}
wxString wxStatusBarGeneric::GetStatusText(int n) const
{
wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
_T("invalid status bar field index") );
return m_statusStrings[n];
}
void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
{
// only set status widths, when n == number of statuswindows
wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
// delete the old widths in any case - this function may be used to reset
// the widths to the default (all equal)
// MBN: this is incompatible with at least wxMSW and wxMAC and not
// documented, but let's keep it for now
ReinitWidths();
// forget the old cached pixel widths
m_widthsAbs.Empty();
if ( !widths_field )
{
// not an error, see the comment above
Refresh();
return;
}
wxStatusBarBase::SetStatusWidths(n, widths_field);
}
void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
{
wxPaintDC dc(this);
#ifdef __WXGTK20__
// Draw grip first
if (HasFlag( wxST_SIZEGRIP ))
{
int width, height;
GetClientSize(&width, &height);
gtk_paint_resize_grip( m_widget->style,
GTK_PIZZA(m_wxwindow)->bin_window,
(GtkStateType) GTK_WIDGET_STATE (m_widget),
NULL,
m_widget,
"statusbar",
GDK_WINDOW_EDGE_SOUTH_EAST,
width-height-2, 1, height-2, height-3 );
}
#endif
if (GetFont().Ok())
dc.SetFont(GetFont());
dc.SetBackgroundMode(wxTRANSPARENT);
#ifdef __WXPM__
wxColour vColor;
vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
#endif
for (int i = 0; i < m_nFields; i ++)
DrawField(dc, i);
}
void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
{
int leftMargin = 2;
wxRect rect;
GetFieldRect(i, rect);
wxString text(GetStatusText(i));
long x, y;
dc.GetTextExtent(text, &x, &y);
int xpos = rect.x + leftMargin;
int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
#if defined( __WXGTK__ ) || defined(__WXMAC__)
xpos++;
ypos++;
#endif
dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
dc.DrawText(text, xpos, ypos);
dc.DestroyClippingRegion();
}
void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
{
wxRect rect;
GetFieldRect(i, rect);
// Draw border
// Have grey background, plus 3-d border -
// One black rectangle.
// Inside this, left and top sides - dark grey. Bottom and right -
// white.
dc.SetPen(m_hilightPen);
#ifndef __WXPM__
// Right and bottom white lines
dc.DrawLine(rect.x + rect.width, rect.y,
rect.x + rect.width, rect.y + rect.height);
dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
rect.x, rect.y + rect.height);
dc.SetPen(m_mediumShadowPen);
// Left and top grey lines
dc.DrawLine(rect.x, rect.y + rect.height,
rect.x, rect.y);
dc.DrawLine(rect.x, rect.y,
rect.x + rect.width, rect.y);
#else
dc.DrawLine(rect.x + rect.width, rect.height + 2,
rect.x, rect.height + 2);
dc.DrawLine(rect.x + rect.width, rect.y,
rect.x + rect.width, rect.y + rect.height);
dc.SetPen(m_mediumShadowPen);
dc.DrawLine(rect.x, rect.y,
rect.x + rect.width, rect.y);
dc.DrawLine(rect.x, rect.y + rect.height,
rect.x, rect.y);
#endif
DrawFieldText(dc, i);
}
// Get the position and size of the field's internal bounding rectangle
bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
{
wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
_T("invalid status bar field index") );
// FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
int width, height;
#ifdef __WXPM__
GetSize(&width, &height);
#else
GetClientSize(&width, &height);
#endif
// we cache m_widthsAbs between calls and recompute it if client
// width has changed (or when it is initially empty)
if ( m_widthsAbs.IsEmpty() || (m_lastClientWidth != width) )
{
wxConstCast(this, wxStatusBarGeneric)->
m_widthsAbs = CalculateAbsWidths(width);
// remember last width for which we have recomputed the widths in pixels
wxConstCast(this, wxStatusBarGeneric)->
m_lastClientWidth = width;
}
rect.x = 0;
for ( int i = 0; i < n; i++ )
{
rect.x += m_widthsAbs[i];
}
rect.x += m_borderX;
rect.y = m_borderY;
rect.width = m_widthsAbs[n] - 2*m_borderX;
rect.height = height - 2*m_borderY;
return TRUE;
}
// Initialize colours
void wxStatusBarGeneric::InitColours()
{
// Shadow colours
#if defined(__WIN95__)
wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
#elif defined(__WXPM__)
m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
m_hilightPen = wxPen("WHITE", 1, wxSOLID);
wxColour vColour;
vColour.Set(wxString("LIGHT GREY"));
SetBackgroundColour(vColour);
vColour.Set(wxString("BLACK"));
SetForegroundColour(vColour);
m_defaultStatusBarFont = *wxSMALL_FONT;
#else
m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
m_hilightPen = wxPen("WHITE", 1, wxSOLID);
#endif
#ifndef __WXPM__
m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
#endif
}
// Responds to colour changes, and passes event on to children.
void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
{
InitColours();
Refresh();
// Propagate the event to the non-top-level children
wxWindow::OnSysColourChanged(event);
}
void wxStatusBarGeneric::SetMinHeight(int height)
{
// check that this min height is not less than minimal height for the
// current font
wxClientDC dc(this);
wxCoord y;
dc.GetTextExtent( wxT("X"), NULL, &y );
if ( height > (11*y)/10 )
{
SetSize(-1, -1, -1, height + 2*m_borderY);
}
}
void wxStatusBarGeneric::OnLeftDown(wxMouseEvent& event)
{
#ifdef __WXGTK20__
int width, height;
GetClientSize(&width, &height);
if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
{
GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
if (!GTK_IS_WINDOW (ancestor))
return;
GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
int org_x = 0;
int org_y = 0;
gdk_window_get_origin( source, &org_x, &org_y );
gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
GDK_WINDOW_EDGE_SOUTH_EAST,
1,
org_x + event.GetX(),
org_y + event.GetY(),
0);
}
else
{
event.Skip( TRUE );
}
#else
event.Skip( TRUE );
#endif
}
void wxStatusBarGeneric::OnRightDown(wxMouseEvent& event)
{
#ifdef __WXGTK20__
int width, height;
GetClientSize(&width, &height);
if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
{
GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
if (!GTK_IS_WINDOW (ancestor))
return;
GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
int org_x = 0;
int org_y = 0;
gdk_window_get_origin( source, &org_x, &org_y );
gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
2,
org_x + event.GetX(),
org_y + event.GetY(),
0);
}
else
{
event.Skip( TRUE );
}
#else
event.Skip( TRUE );
#endif
}
#endif // wxUSE_STATUSBAR