]> git.saurik.com Git - wxWidgets.git/blob - src/gtk1/slider.cpp
Changed m_font to * GetFont() since m_font isn't in all implementations.
[wxWidgets.git] / src / gtk1 / slider.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: slider.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10
11 #ifdef __GNUG__
12 #pragma implementation "slider.h"
13 #endif
14
15 #include "wx/slider.h"
16 #include "wx/utils.h"
17
18 //-----------------------------------------------------------------------------
19 // data
20 //-----------------------------------------------------------------------------
21
22 extern bool g_blockEventsOnDrag;
23
24 //-----------------------------------------------------------------------------
25 // "value_changed"
26 //-----------------------------------------------------------------------------
27
28 static void gtk_slider_callback( GtkWidget *WXUNUSED(widget), wxSlider *win )
29 {
30 if (!win->HasVMT()) return;
31 if (g_blockEventsOnDrag) return;
32
33 float diff = win->m_adjust->value - win->m_oldPos;
34 if (fabs(diff) < 0.2) return;
35
36 wxEventType command = wxEVT_NULL;
37
38 float line_step = win->m_adjust->step_increment;
39 float page_step = win->m_adjust->page_increment;
40
41 if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN;
42 else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP;
43 else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN;
44 else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP;
45 else command = wxEVT_SCROLL_THUMBTRACK;
46
47 int value = (int)(win->m_adjust->value+0.5);
48
49 int orient = wxHORIZONTAL;
50 if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxVERTICAL;
51
52 wxScrollEvent event( command, win->GetId(), value, orient );
53 event.SetEventObject( win );
54 win->ProcessEvent( event );
55
56 wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, win->GetId() );
57 cevent.SetEventObject( win );
58 win->ProcessEvent( cevent );
59 }
60
61 //-----------------------------------------------------------------------------
62 // wxSlider
63 //-----------------------------------------------------------------------------
64
65 IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl)
66
67 wxSlider::wxSlider(void)
68 {
69 }
70
71 wxSlider::~wxSlider(void)
72 {
73 }
74
75 bool wxSlider::Create(wxWindow *parent, wxWindowID id,
76 int value, int minValue, int maxValue,
77 const wxPoint& pos, const wxSize& size,
78 long style, const wxValidator& validator, const wxString& name )
79 {
80 m_needParent = TRUE;
81
82 PreCreation( parent, id, pos, size, style, name );
83
84 SetValidator( validator );
85
86 m_oldPos = 0.0;
87
88 if (style & wxSL_VERTICAL == wxSL_VERTICAL)
89 m_widget = gtk_hscale_new( (GtkAdjustment *) NULL );
90 else
91 m_widget = gtk_vscale_new( (GtkAdjustment *) NULL );
92
93 gtk_scale_set_draw_value( GTK_SCALE( m_widget ), FALSE );
94
95 m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) );
96
97 gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed",
98 (GtkSignalFunc) gtk_slider_callback, (gpointer) this );
99 SetRange( minValue, maxValue );
100 SetValue( value );
101
102 m_parent->AddChild( this );
103
104 (m_parent->m_insertCallback)( m_parent, this );
105
106 PostCreation();
107
108 SetBackgroundColour( parent->GetBackgroundColour() );
109
110 Show( TRUE );
111
112 return TRUE;
113 }
114
115 int wxSlider::GetValue(void) const
116 {
117 return (int)(m_adjust->value+0.5);
118 }
119
120 void wxSlider::SetValue( int value )
121 {
122 float fpos = (float)value;
123 m_oldPos = fpos;
124 if (fabs(fpos-m_adjust->value) < 0.2) return;
125 m_adjust->value = fpos;
126
127 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
128 }
129
130 void wxSlider::SetRange( int minValue, int maxValue )
131 {
132 float fmin = (float)minValue;
133 float fmax = (float)maxValue;
134
135 if ((fabs(fmin-m_adjust->lower) < 0.2) &&
136 (fabs(fmax-m_adjust->upper) < 0.2))
137 return;
138
139 m_adjust->lower = fmin;
140 m_adjust->upper = fmax;
141
142 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
143 }
144
145 int wxSlider::GetMin(void) const
146 {
147 return (int)(m_adjust->lower+0.5);
148 }
149
150 int wxSlider::GetMax(void) const
151 {
152 return (int)(m_adjust->upper+0.5);
153 }
154
155 void wxSlider::SetPageSize( int pageSize )
156 {
157 float fpage = (float)pageSize;
158
159 if (fabs(fpage-m_adjust->page_increment) < 0.2) return;
160
161 m_adjust->page_increment = fpage;
162
163 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
164 }
165
166 int wxSlider::GetPageSize(void) const
167 {
168 return (int)(m_adjust->page_increment+0.5);
169 }
170
171 void wxSlider::SetThumbLength( int len )
172 {
173 float flen = (float)len;
174
175 if (fabs(flen-m_adjust->page_size) < 0.2) return;
176
177 m_adjust->page_size = flen;
178
179 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
180 }
181
182 int wxSlider::GetThumbLength(void) const
183 {
184 return (int)(m_adjust->page_size+0.5);
185 }
186
187 void wxSlider::SetLineSize( int WXUNUSED(lineSize) )
188 {
189 }
190
191 int wxSlider::GetLineSize(void) const
192 {
193 return 0;
194 }
195
196 void wxSlider::SetTick( int WXUNUSED(tickPos) )
197 {
198 }
199
200 void wxSlider::SetTickFreq( int WXUNUSED(n), int WXUNUSED(pos) )
201 {
202 }
203
204 int wxSlider::GetTickFreq(void) const
205 {
206 return 0;
207 }
208
209 void wxSlider::ClearTicks(void)
210 {
211 }
212
213 void wxSlider::SetSelection( int WXUNUSED(minPos), int WXUNUSED(maxPos) )
214 {
215 }
216
217 int wxSlider::GetSelEnd(void) const
218 {
219 return 0;
220 }
221
222 int wxSlider::GetSelStart(void) const
223 {
224 return 0;
225 }
226
227 void wxSlider::ClearSel(void)
228 {
229 }
230
231 bool wxSlider::IsOwnGtkWindow( GdkWindow *window )
232 {
233 GtkRange *range = GTK_RANGE(m_widget);
234 return ( (window == GTK_WIDGET(range)->window) ||
235 (window == range->trough) ||
236 (window == range->slider) ||
237 (window == range->step_forw) ||
238 (window == range->step_back) );
239 }
240
241 void wxSlider::ApplyWidgetStyle()
242 {
243 SetWidgetStyle();
244 gtk_widget_set_style( m_widget, m_widgetStyle );
245 }