390015c0ee
1. works correctly (handles negative widths according to the docs/MSW/Univ) 2. has shorter and simpler GetFieldRect() implementation 3. ... which is also more efficient (pixel widths are cached) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16966 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
372 lines
9.4 KiB
C++
372 lines
9.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: generic/statusbr.cpp
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// Purpose: wxStatusBarGeneric class implementation
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart and Markus Holzem
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "statusbr.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_STATUSBAR
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#ifndef WX_PRECOMP
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#include "wx/setup.h"
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#include "wx/frame.h"
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#include "wx/settings.h"
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#include "wx/dcclient.h"
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#endif
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#include "wx/statusbr.h"
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// we only have to do it here when we use wxStatusBarGeneric in addition to the
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// standard wxStatusBar class, if wxStatusBarGeneric is the same as
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// wxStatusBar, then the corresponding IMPLEMENT_DYNAMIC_CLASS is already in
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// common/statbar.cpp
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#if defined(__WXMAC__) || \
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(defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR)
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#include "wx/generic/statusbr.h"
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IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
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#endif // wxUSE_NATIVE_STATUSBAR
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BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
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EVT_PAINT(wxStatusBarGeneric::OnPaint)
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EVT_SIZE(wxStatusBarGeneric::OnSize)
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EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
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END_EVENT_TABLE()
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// Default status border dimensions
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#define wxTHICK_LINE_BORDER 2
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#define wxTHICK_LINE_WIDTH 1
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void wxStatusBarGeneric::Init()
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{
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m_borderX = wxTHICK_LINE_BORDER;
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m_borderY = wxTHICK_LINE_BORDER;
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}
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wxStatusBarGeneric::~wxStatusBarGeneric()
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{
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// VZ: what is this for? please comment...
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#ifdef __WXMSW__
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SetFont(wxNullFont);
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#endif // MSW
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}
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bool wxStatusBarGeneric::Create(wxWindow *parent,
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wxWindowID id,
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long style,
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const wxString& name)
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{
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if ( !wxWindow::Create(parent, id,
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wxDefaultPosition, wxDefaultSize,
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style | wxTAB_TRAVERSAL, name) )
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return FALSE;
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// The status bar should have a themed background
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SetThemeEnabled( TRUE );
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// Don't wish this to be found as a child
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#ifndef __WXMAC__
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parent->GetChildren().DeleteObject(this);
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#endif
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InitColours();
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SetFont(m_defaultStatusBarFont);
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// Set the height according to the font and the border size
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wxClientDC dc(this);
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dc.SetFont(GetFont());
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wxCoord y;
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dc.GetTextExtent(_T("X"), NULL, &y );
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int height = (int)( (11*y)/10 + 2*GetBorderY());
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SetSize(-1, -1, -1, height);
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return TRUE;
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}
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void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
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{
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wxASSERT_MSG( number >= 0, _T("negative number of fields in wxStatusBar?") );
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int i;
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for(i = m_nFields; i < number; ++i)
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m_statusStrings.Add( wxEmptyString );
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for (i = m_nFields - 1; i >= number; --i)
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m_statusStrings.RemoveAt(i);
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m_nFields = number;
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wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
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_T("This really should never happen, can we do away with m_nFields here?") );
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SetStatusWidths(number, widths);
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}
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void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
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{
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wxCHECK_RET( (number >= 0) && (number < m_nFields),
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_T("invalid status bar field index") );
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m_statusStrings[number] = text;
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wxRect rect;
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GetFieldRect(number, rect);
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Refresh( TRUE, &rect );
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}
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wxString wxStatusBarGeneric::GetStatusText(int n) const
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{
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wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
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_T("invalid status bar field index") );
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return m_statusStrings[n];
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}
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void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
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{
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// only set status widths, when n == number of statuswindows
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wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
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// delete the old widths in any case - this function may be used to reset
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// the widths to the default (all equal)
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// MBN: this is incompatible with at least wxMSW and wxMAC and not
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// documented, but let's keep it for now
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ReinitWidths();
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// forget the old cached pixel widths
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m_widthsAbs.Empty();
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if ( !widths_field )
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{
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// not an error, see the comment above
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Refresh();
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return;
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}
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wxStatusBarBase::SetStatusWidths(n, widths_field);
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}
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void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
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{
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wxPaintDC dc(this);
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int i;
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if ( GetFont().Ok() )
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dc.SetFont(GetFont());
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dc.SetBackgroundMode(wxTRANSPARENT);
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#ifdef __WXPM__
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wxColour vColor;
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vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
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::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
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#endif
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for ( i = 0; i < m_nFields; i ++ )
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DrawField(dc, i);
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// VZ: again, what is this for?
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#ifdef __WXMSW__
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dc.SetFont(wxNullFont);
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#endif // MSW
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}
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void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
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{
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int leftMargin = 2;
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wxRect rect;
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GetFieldRect(i, rect);
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wxString text(GetStatusText(i));
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long x, y;
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dc.GetTextExtent(text, &x, &y);
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int xpos = rect.x + leftMargin;
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int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
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#if defined( __WXGTK__ ) || defined(__WXMAC__)
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xpos++;
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ypos++;
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#endif
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dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
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dc.DrawText(text, xpos, ypos);
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dc.DestroyClippingRegion();
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}
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void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
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{
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wxRect rect;
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GetFieldRect(i, rect);
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// Draw border
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// Have grey background, plus 3-d border -
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// One black rectangle.
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// Inside this, left and top sides - dark grey. Bottom and right -
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// white.
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dc.SetPen(m_hilightPen);
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#ifndef __WXPM__
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// Right and bottom white lines
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dc.DrawLine(rect.x + rect.width, rect.y,
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rect.x + rect.width, rect.y + rect.height);
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dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
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rect.x, rect.y + rect.height);
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dc.SetPen(m_mediumShadowPen);
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// Left and top grey lines
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dc.DrawLine(rect.x, rect.y + rect.height,
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rect.x, rect.y);
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dc.DrawLine(rect.x, rect.y,
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rect.x + rect.width, rect.y);
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#else
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dc.DrawLine(rect.x + rect.width, rect.height + 2,
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rect.x, rect.height + 2);
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dc.DrawLine(rect.x + rect.width, rect.y,
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rect.x + rect.width, rect.y + rect.height);
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dc.SetPen(m_mediumShadowPen);
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dc.DrawLine(rect.x, rect.y,
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rect.x + rect.width, rect.y);
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dc.DrawLine(rect.x, rect.y + rect.height,
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rect.x, rect.y);
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#endif
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DrawFieldText(dc, i);
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}
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// Get the position and size of the field's internal bounding rectangle
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bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
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{
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wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
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_T("invalid status bar field index") );
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// FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
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int width, height;
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#ifdef __WXPM__
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GetSize(&width, &height);
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#else
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GetClientSize(&width, &height);
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#endif
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// we cache m_widthsAbs between calls normally but it's cleared when the
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// status widths change so recompute it if needed
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if ( m_widthsAbs.IsEmpty() )
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{
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wxConstCast(this, wxStatusBarGeneric)->
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m_widthsAbs = CalculateAbsWidths(width);
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}
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rect.x = 0;
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for ( int i = 0; i < n; i++ )
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{
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rect.x += m_widthsAbs[i];
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}
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rect.x += m_borderX;
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rect.y = m_borderY;
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rect.width = m_widthsAbs[n] - 2*m_borderX;
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rect.height = height - 2*m_borderY;
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return TRUE;
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}
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// Initialize colours
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void wxStatusBarGeneric::InitColours()
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{
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// Shadow colours
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#if defined(__WIN95__)
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wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
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m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
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wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
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m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
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#elif defined(__WXPM__)
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m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
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m_hilightPen = wxPen("WHITE", 1, wxSOLID);
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wxColour vColour;
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vColour.Set(wxString("LIGHT GREY"));
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SetBackgroundColour(vColour);
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vColour.Set(wxString("BLACK"));
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SetForegroundColour(vColour);
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m_defaultStatusBarFont = *wxSMALL_FONT;
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#else
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m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
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m_hilightPen = wxPen("WHITE", 1, wxSOLID);
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#endif
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#ifndef __WXPM__
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m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
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SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
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#endif
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}
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// Responds to colour changes, and passes event on to children.
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void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
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{
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InitColours();
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Refresh();
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// Propagate the event to the non-top-level children
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wxWindow::OnSysColourChanged(event);
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}
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void wxStatusBarGeneric::SetMinHeight(int height)
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{
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// check that this min height is not less than minimal height for the
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// current font
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wxClientDC dc(this);
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wxCoord y;
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dc.GetTextExtent( _T("X"), NULL, &y );
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if ( height > (11*y)/10 )
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{
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SetSize(-1, -1, -1, height + 2*m_borderY);
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}
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}
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void wxStatusBarGeneric::OnSize(wxSizeEvent& event)
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{
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// have to recompute the widths in pixels
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m_widthsAbs.Empty();
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event.Skip();
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}
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#endif // wxUSE_STATUSBAR
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