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c801d85f | 1 | ///////////////////////////////////////////////////////////////////////////// |
1e6feb95 | 2 | // Name: gtk/slider.cpp |
c801d85f KB |
3 | // Purpose: |
4 | // Author: Robert Roebling | |
f96aa4d9 RR |
5 | // Id: $Id$ |
6 | // Copyright: (c) 1998 Robert Roebling | |
1e6feb95 | 7 | // Licence: wxWindows licence |
c801d85f KB |
8 | ///////////////////////////////////////////////////////////////////////////// |
9 | ||
c801d85f KB |
10 | #ifdef __GNUG__ |
11 | #pragma implementation "slider.h" | |
12 | #endif | |
13 | ||
14 | #include "wx/slider.h" | |
dcf924a3 RR |
15 | |
16 | #if wxUSE_SLIDER | |
17 | ||
c801d85f | 18 | #include "wx/utils.h" |
57a1fd73 | 19 | |
f5368809 | 20 | #include <math.h> |
c801d85f | 21 | |
9e691f46 | 22 | #include "wx/gtk/private.h" |
83624f79 | 23 | |
acfd422a RR |
24 | //----------------------------------------------------------------------------- |
25 | // idle system | |
26 | //----------------------------------------------------------------------------- | |
27 | ||
28 | extern void wxapp_install_idle_handler(); | |
29 | extern bool g_isIdle; | |
30 | ||
66bd6b93 RR |
31 | //----------------------------------------------------------------------------- |
32 | // data | |
33 | //----------------------------------------------------------------------------- | |
34 | ||
1e6feb95 | 35 | extern bool g_blockEventsOnDrag; |
66bd6b93 | 36 | |
57a1fd73 RR |
37 | static const float sensitivity = 0.02; |
38 | ||
c801d85f | 39 | //----------------------------------------------------------------------------- |
97b3455a | 40 | // "value_changed" |
c801d85f KB |
41 | //----------------------------------------------------------------------------- |
42 | ||
9e691f46 VZ |
43 | static void gtk_slider_callback( GtkAdjustment *adjust, |
44 | SCROLLBAR_CBACK_ARG | |
45 | wxSlider *win ) | |
80810ca3 | 46 | { |
acfd422a RR |
47 | if (g_isIdle) wxapp_install_idle_handler(); |
48 | ||
a2053b27 | 49 | if (!win->m_hasVMT) return; |
2d17d68f | 50 | if (g_blockEventsOnDrag) return; |
e1811a01 RR |
51 | |
52 | float diff = adjust->value - win->m_oldPos; | |
57a1fd73 | 53 | if (fabs(diff) < sensitivity) return; |
80810ca3 | 54 | |
e1811a01 | 55 | win->m_oldPos = adjust->value; |
2d17d68f | 56 | |
9e691f46 | 57 | wxEventType command = GtkScrollTypeToWx(GET_SCROLL_TYPE(win->m_widget)); |
80810ca3 | 58 | |
0a07a7d8 | 59 | double dvalue = adjust->value; |
83c22707 | 60 | int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5); |
80810ca3 | 61 | |
1e6feb95 VZ |
62 | int orient = win->GetWindowStyleFlag() & wxSL_VERTICAL ? wxVERTICAL |
63 | : wxHORIZONTAL; | |
80810ca3 | 64 | |
2d17d68f RR |
65 | wxScrollEvent event( command, win->GetId(), value, orient ); |
66 | event.SetEventObject( win ); | |
828f655f | 67 | win->GetEventHandler()->ProcessEvent( event ); |
80810ca3 | 68 | |
2d17d68f RR |
69 | wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, win->GetId() ); |
70 | cevent.SetEventObject( win ); | |
f6bcfd97 | 71 | cevent.SetInt( value ); |
828f655f | 72 | win->GetEventHandler()->ProcessEvent( cevent ); |
6de97a3b | 73 | } |
c801d85f | 74 | |
97b3455a RR |
75 | //----------------------------------------------------------------------------- |
76 | // wxSlider | |
77 | //----------------------------------------------------------------------------- | |
78 | ||
c801d85f KB |
79 | IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl) |
80 | ||
debe6624 JS |
81 | bool wxSlider::Create(wxWindow *parent, wxWindowID id, |
82 | int value, int minValue, int maxValue, | |
c801d85f | 83 | const wxPoint& pos, const wxSize& size, |
6de97a3b | 84 | long style, const wxValidator& validator, const wxString& name ) |
c801d85f | 85 | { |
b292e2f5 | 86 | m_acceptsFocus = TRUE; |
2d17d68f | 87 | m_needParent = TRUE; |
80810ca3 | 88 | |
4dcaf11a RR |
89 | if (!PreCreation( parent, pos, size ) || |
90 | !CreateBase( parent, id, pos, size, style, validator, name )) | |
91 | { | |
223d09f6 | 92 | wxFAIL_MSG( wxT("wxSlider creation failed") ); |
ef7a25a7 | 93 | return FALSE; |
4dcaf11a | 94 | } |
6de97a3b | 95 | |
2d17d68f | 96 | m_oldPos = 0.0; |
c801d85f | 97 | |
2e563988 | 98 | if (style & wxSL_VERTICAL) |
2d17d68f | 99 | m_widget = gtk_vscale_new( (GtkAdjustment *) NULL ); |
19da4326 RR |
100 | else |
101 | m_widget = gtk_hscale_new( (GtkAdjustment *) NULL ); | |
80810ca3 | 102 | |
2e563988 | 103 | if (style & wxSL_LABELS) |
858b5bdd | 104 | { |
2e563988 | 105 | gtk_scale_set_draw_value( GTK_SCALE( m_widget ), TRUE ); |
ef7a25a7 | 106 | gtk_scale_set_digits( GTK_SCALE( m_widget ), 0 ); |
80810ca3 | 107 | |
f03fc89f VZ |
108 | /* labels need more space and too small window will |
109 | cause junk to appear on the dialog */ | |
858b5bdd | 110 | if (style & wxSL_VERTICAL) |
f03fc89f VZ |
111 | { |
112 | wxSize sz( size ); | |
113 | if (sz.x < 35) | |
114 | { | |
115 | sz.x = 35; | |
116 | SetSize( sz ); | |
117 | } | |
118 | } | |
858b5bdd | 119 | else |
f03fc89f VZ |
120 | { |
121 | wxSize sz( size ); | |
122 | if (sz.y < 35) | |
123 | { | |
124 | sz.y = 35; | |
125 | SetSize( sz ); | |
126 | } | |
127 | } | |
858b5bdd | 128 | } |
2e563988 RR |
129 | else |
130 | gtk_scale_set_draw_value( GTK_SCALE( m_widget ), FALSE ); | |
19da4326 | 131 | |
2d17d68f | 132 | m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) ); |
80810ca3 VZ |
133 | |
134 | gtk_signal_connect( GTK_OBJECT(m_adjust), | |
2d17d68f | 135 | "value_changed", |
80810ca3 | 136 | (GtkSignalFunc) gtk_slider_callback, |
f03fc89f | 137 | (gpointer) this ); |
80810ca3 | 138 | |
2d17d68f RR |
139 | SetRange( minValue, maxValue ); |
140 | SetValue( value ); | |
80810ca3 | 141 | |
f03fc89f | 142 | m_parent->DoAddChild( this ); |
80810ca3 | 143 | |
2d17d68f | 144 | PostCreation(); |
80810ca3 | 145 | |
2d17d68f | 146 | SetBackgroundColour( parent->GetBackgroundColour() ); |
f96aa4d9 | 147 | |
2d17d68f | 148 | Show( TRUE ); |
80810ca3 | 149 | |
2d17d68f | 150 | return TRUE; |
6de97a3b | 151 | } |
c801d85f | 152 | |
1e1fafb9 | 153 | int wxSlider::GetValue() const |
c801d85f | 154 | { |
ef7a25a7 VZ |
155 | // we want to round to the nearest integer, i.e. 0.9 is rounded to 1 and |
156 | // -0.9 is rounded to -1 | |
157 | double val = m_adjust->value; | |
83c22707 | 158 | return (int)(val < 0 ? val - 0.5 : val + 0.5); |
6de97a3b | 159 | } |
c801d85f | 160 | |
debe6624 | 161 | void wxSlider::SetValue( int value ) |
c801d85f | 162 | { |
2d17d68f RR |
163 | float fpos = (float)value; |
164 | m_oldPos = fpos; | |
165 | if (fabs(fpos-m_adjust->value) < 0.2) return; | |
80810ca3 | 166 | |
2d17d68f | 167 | m_adjust->value = fpos; |
80810ca3 | 168 | |
2d17d68f | 169 | gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); |
6de97a3b | 170 | } |
c801d85f | 171 | |
debe6624 | 172 | void wxSlider::SetRange( int minValue, int maxValue ) |
c801d85f | 173 | { |
2d17d68f RR |
174 | float fmin = (float)minValue; |
175 | float fmax = (float)maxValue; | |
80810ca3 | 176 | |
2d17d68f RR |
177 | if ((fabs(fmin-m_adjust->lower) < 0.2) && |
178 | (fabs(fmax-m_adjust->upper) < 0.2)) | |
179 | { | |
180 | return; | |
181 | } | |
80810ca3 | 182 | |
2d17d68f RR |
183 | m_adjust->lower = fmin; |
184 | m_adjust->upper = fmax; | |
4ee1741f RR |
185 | m_adjust->step_increment = 1.0; |
186 | m_adjust->page_increment = ceil((fmax-fmin) / 10.0); | |
c801d85f | 187 | |
2d17d68f | 188 | gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); |
6de97a3b | 189 | } |
c801d85f | 190 | |
1e1fafb9 | 191 | int wxSlider::GetMin() const |
c801d85f | 192 | { |
b1a39f47 | 193 | return (int)ceil(m_adjust->lower); |
6de97a3b | 194 | } |
c801d85f | 195 | |
1e1fafb9 | 196 | int wxSlider::GetMax() const |
c801d85f | 197 | { |
b1a39f47 | 198 | return (int)ceil(m_adjust->upper); |
6de97a3b | 199 | } |
c801d85f | 200 | |
debe6624 | 201 | void wxSlider::SetPageSize( int pageSize ) |
c801d85f | 202 | { |
2d17d68f | 203 | float fpage = (float)pageSize; |
80810ca3 | 204 | |
2d17d68f | 205 | if (fabs(fpage-m_adjust->page_increment) < 0.2) return; |
80810ca3 | 206 | |
2d17d68f | 207 | m_adjust->page_increment = fpage; |
c801d85f | 208 | |
2d17d68f | 209 | gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); |
6de97a3b | 210 | } |
c801d85f | 211 | |
1e1fafb9 | 212 | int wxSlider::GetPageSize() const |
c801d85f | 213 | { |
b1a39f47 | 214 | return (int)ceil(m_adjust->page_increment); |
6de97a3b | 215 | } |
c801d85f | 216 | |
debe6624 | 217 | void wxSlider::SetThumbLength( int len ) |
c801d85f | 218 | { |
2d17d68f | 219 | float flen = (float)len; |
80810ca3 | 220 | |
2d17d68f | 221 | if (fabs(flen-m_adjust->page_size) < 0.2) return; |
80810ca3 | 222 | |
2d17d68f | 223 | m_adjust->page_size = flen; |
c801d85f | 224 | |
2d17d68f | 225 | gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); |
6de97a3b | 226 | } |
c801d85f | 227 | |
1e1fafb9 | 228 | int wxSlider::GetThumbLength() const |
c801d85f | 229 | { |
b1a39f47 | 230 | return (int)ceil(m_adjust->page_size); |
6de97a3b | 231 | } |
c801d85f | 232 | |
debe6624 | 233 | void wxSlider::SetLineSize( int WXUNUSED(lineSize) ) |
c801d85f | 234 | { |
6de97a3b | 235 | } |
c801d85f | 236 | |
1e1fafb9 | 237 | int wxSlider::GetLineSize() const |
c801d85f | 238 | { |
2d17d68f | 239 | return 0; |
6de97a3b | 240 | } |
c801d85f | 241 | |
b4071e91 RR |
242 | bool wxSlider::IsOwnGtkWindow( GdkWindow *window ) |
243 | { | |
2d17d68f | 244 | GtkRange *range = GTK_RANGE(m_widget); |
9e691f46 VZ |
245 | return ( (window == GTK_WIDGET(range)->window) |
246 | #ifndef __WXGTK20__ | |
247 | || (window == range->trough) | |
248 | || (window == range->slider) | |
249 | || (window == range->step_forw) | |
250 | || (window == range->step_back) | |
251 | #endif // GTK+ 1.x | |
252 | ); | |
b4071e91 RR |
253 | } |
254 | ||
58614078 RR |
255 | void wxSlider::ApplyWidgetStyle() |
256 | { | |
2d17d68f RR |
257 | SetWidgetStyle(); |
258 | gtk_widget_set_style( m_widget, m_widgetStyle ); | |
58614078 | 259 | } |
dcf924a3 RR |
260 | |
261 | #endif |