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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk/gauge.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Id: $Id$ | |
6 | // Copyright: (c) 1998 Robert Roebling | |
7 | // Licence: wxWindows licence | |
8 | ///////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // For compilers that support precompilation, includes "wx.h". | |
11 | #include "wx/wxprec.h" | |
12 | ||
13 | #if wxUSE_GAUGE | |
14 | ||
15 | #include "wx/gauge.h" | |
16 | ||
17 | #include <gtk/gtk.h> | |
18 | ||
19 | //----------------------------------------------------------------------------- | |
20 | // wxGauge | |
21 | //----------------------------------------------------------------------------- | |
22 | ||
23 | IMPLEMENT_DYNAMIC_CLASS(wxGauge, wxControl) | |
24 | ||
25 | bool wxGauge::Create( wxWindow *parent, | |
26 | wxWindowID id, | |
27 | int range, | |
28 | const wxPoint& pos, | |
29 | const wxSize& size, | |
30 | long style, | |
31 | const wxValidator& validator, | |
32 | const wxString& name ) | |
33 | { | |
34 | if (!PreCreation( parent, pos, size ) || | |
35 | !CreateBase( parent, id, pos, size, style, validator, name )) | |
36 | { | |
37 | wxFAIL_MSG( wxT("wxGauge creation failed") ); | |
38 | return false; | |
39 | } | |
40 | ||
41 | m_rangeMax = range; | |
42 | ||
43 | m_widget = gtk_progress_bar_new(); | |
44 | g_object_ref(m_widget); | |
45 | if ( style & wxGA_VERTICAL ) | |
46 | { | |
47 | gtk_progress_bar_set_orientation( GTK_PROGRESS_BAR(m_widget), | |
48 | GTK_PROGRESS_BOTTOM_TO_TOP ); | |
49 | } | |
50 | ||
51 | // when using the gauge in indeterminate mode, we need this: | |
52 | gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR (m_widget), 0.05); | |
53 | ||
54 | m_parent->DoAddChild( this ); | |
55 | ||
56 | PostCreation(size); | |
57 | SetInitialSize(size); | |
58 | ||
59 | return true; | |
60 | } | |
61 | ||
62 | void wxGauge::DoSetGauge() | |
63 | { | |
64 | wxASSERT_MSG( 0 <= m_gaugePos && m_gaugePos <= m_rangeMax, | |
65 | _T("invalid gauge position in DoSetGauge()") ); | |
66 | ||
67 | gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (m_widget), | |
68 | m_rangeMax ? ((double)m_gaugePos)/m_rangeMax : 0.0); | |
69 | } | |
70 | ||
71 | wxSize wxGauge::DoGetBestSize() const | |
72 | { | |
73 | wxSize best; | |
74 | if (HasFlag(wxGA_VERTICAL)) | |
75 | best = wxSize(28, 100); | |
76 | else | |
77 | best = wxSize(100, 28); | |
78 | CacheBestSize(best); | |
79 | return best; | |
80 | } | |
81 | ||
82 | void wxGauge::SetRange( int range ) | |
83 | { | |
84 | m_rangeMax = range; | |
85 | if (m_gaugePos > m_rangeMax) | |
86 | m_gaugePos = m_rangeMax; | |
87 | ||
88 | DoSetGauge(); | |
89 | } | |
90 | ||
91 | void wxGauge::SetValue( int pos ) | |
92 | { | |
93 | wxCHECK_RET( pos <= m_rangeMax, _T("invalid value in wxGauge::SetValue()") ); | |
94 | ||
95 | m_gaugePos = pos; | |
96 | ||
97 | DoSetGauge(); | |
98 | } | |
99 | ||
100 | int wxGauge::GetRange() const | |
101 | { | |
102 | return m_rangeMax; | |
103 | } | |
104 | ||
105 | int wxGauge::GetValue() const | |
106 | { | |
107 | return m_gaugePos; | |
108 | } | |
109 | ||
110 | void wxGauge::Pulse() | |
111 | { | |
112 | gtk_progress_bar_pulse(GTK_PROGRESS_BAR (m_widget)); | |
113 | } | |
114 | ||
115 | wxVisualAttributes wxGauge::GetDefaultAttributes() const | |
116 | { | |
117 | // Visible gauge colours use a different colour state | |
118 | return GetDefaultAttributesFromGTKWidget(m_widget, | |
119 | UseGTKStyleBase(), | |
120 | GTK_STATE_ACTIVE); | |
121 | ||
122 | } | |
123 | ||
124 | // static | |
125 | wxVisualAttributes | |
126 | wxGauge::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) | |
127 | { | |
128 | return GetDefaultAttributesFromGTKWidget(gtk_progress_bar_new, | |
129 | false, GTK_STATE_ACTIVE); | |
130 | } | |
131 | ||
132 | #endif // wxUSE_GAUGE |