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Make mouse capture checking asserts stronger and more detailed.
[wxWidgets.git] / src / common / ownerdrwcmn.cpp
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1///////////////////////////////////////////////////////////////////////////////
2// Name: src/common/ownerdrwcmn.cpp
3// Purpose: wxOwnerDrawn class methods common to all platforms
4// Author: Marcin Malich
5// Modified by:
6// Created: 2009-09-22
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7// Copyright: (c) 2009 Marcin Malich <me@malcom.pl>
8// Licence: wxWindows licence
9///////////////////////////////////////////////////////////////////////////////
10
11// ============================================================================
12// declarations
13// ============================================================================
14
15// ----------------------------------------------------------------------------
16// headers
17// ----------------------------------------------------------------------------
18
19// For compilers that support precompilation, includes "wx.h".
20#include "wx/wxprec.h"
21
22#ifdef __BORLANDC__
23 #pragma hdrstop
24#endif
25
26#if wxUSE_OWNER_DRAWN
27
28#include "wx/ownerdrw.h"
29
30#ifndef WX_PRECOMP
31 #include "wx/window.h"
32 #include "wx/font.h"
33 #include "wx/colour.h"
34 #include "wx/dcmemory.h"
35 #include "wx/settings.h"
36 #include "wx/utils.h"
37#endif
38
39// ============================================================================
40// implementation
41// ============================================================================
42
43bool wxOwnerDrawnBase::OnMeasureItem(size_t *width, size_t *height)
44{
45 if ( IsOwnerDrawn() )
46 {
47 wxMemoryDC dc;
48 wxFont font;
49 GetFontToUse(font);
50 dc.SetFont(font);
51
52 // item name/text without mnemonics
53 wxString name = wxStripMenuCodes(GetName(), wxStrip_Mnemonics);
54
55 wxCoord w, h;
56 dc.GetTextExtent(name, &w, &h);
57
58 *width = w + m_margin;
59 *height = h;
60 }
61 else
62 {
63 *width = 0;
64 *height = 0;
65 }
66
67 return true;
68}
69
70void wxOwnerDrawnBase::GetFontToUse(wxFont& font) const
71{
72 font = m_font.IsOk() ? m_font : *wxNORMAL_FONT;
73}
74
75void wxOwnerDrawnBase::GetColourToUse(wxODStatus stat, wxColour& colText, wxColour& colBack) const
76{
77 if ( stat & wxODSelected )
78 {
79 colText = wxSystemSettings::GetColour(
80 !(stat & wxODDisabled) ? wxSYS_COLOUR_HIGHLIGHTTEXT
81 : wxSYS_COLOUR_GRAYTEXT);
82
83 colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
84 }
85 else
86 {
87 // fall back to default colors if none explicitly specified
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88
89 if ( stat & wxODDisabled )
90 {
91 colText = wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT);
92 }
93 else
94 {
a1b806b9 95 colText = m_colText.IsOk() ? m_colText
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96 : wxSystemSettings::GetColour(wxSYS_COLOUR_MENUTEXT);
97 }
98
a1b806b9 99 colBack = m_colBack.IsOk() ? m_colBack
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100 : wxSystemSettings::GetColour(wxSYS_COLOUR_MENU);
101 }
102}
103
104#endif // wxUSE_OWNER_DRAWN