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added possibility to throw different objects and crash directly from the main frame...
[wxWidgets.git] / src / gtk1 / spinbutt.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: spinbutt.cpp
3// Purpose: wxSpinButton
4// Author: Robert
5// Modified by:
6// RCS-ID: $Id$
7// Copyright: (c) Robert Roebling
65571936 8// Licence: wxWindows licence
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9/////////////////////////////////////////////////////////////////////////////
10
14f355c2 11#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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12 #pragma implementation "spinbutt.h"
13 #pragma implementation "spinbutbase.h"
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14#endif
15
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16// For compilers that support precompilation, includes "wx.h".
17#include "wx/wxprec.h"
18
8e189077 19#include "wx/spinbutt.h"
dcf924a3 20
2fa7c206 21#if wxUSE_SPINBTN
dcf924a3 22
8e189077 23#include "wx/utils.h"
463c4d71 24#include "wx/math.h"
9e691f46 25#include "wx/gtk/private.h"
83624f79 26
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27//-----------------------------------------------------------------------------
28// idle system
29//-----------------------------------------------------------------------------
30
31extern void wxapp_install_idle_handler();
32extern bool g_isIdle;
33
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34//-----------------------------------------------------------------------------
35// data
36//-----------------------------------------------------------------------------
37
38extern bool g_blockEventsOnDrag;
39
738f9e5a 40static const float sensitivity = 0.02;
6380910c 41
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42//-----------------------------------------------------------------------------
43// "value_changed"
44//-----------------------------------------------------------------------------
45
46static void gtk_spinbutt_callback( GtkWidget *WXUNUSED(widget), wxSpinButton *win )
6380910c 47{
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48 if (g_isIdle) wxapp_install_idle_handler();
49
a2053b27 50 if (!win->m_hasVMT) return;
83624f79 51 if (g_blockEventsOnDrag) return;
828f655f 52
83624f79 53 float diff = win->m_adjust->value - win->m_oldPos;
6380910c 54 if (fabs(diff) < sensitivity) return;
6380910c 55
83624f79 56 wxEventType command = wxEVT_NULL;
6380910c 57
83624f79 58 float line_step = win->m_adjust->step_increment;
6380910c 59
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60 if (fabs(diff-line_step) < sensitivity) command = wxEVT_SCROLL_LINEUP;
61 else if (fabs(diff+line_step) < sensitivity) command = wxEVT_SCROLL_LINEDOWN;
83624f79 62 else command = wxEVT_SCROLL_THUMBTRACK;
8e189077 63
66d78146 64 int value = (int)ceil(win->m_adjust->value);
6380910c 65
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66 wxSpinEvent event( command, win->GetId());
67 event.SetPosition( value );
83624f79 68 event.SetEventObject( win );
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69
70 if ((win->GetEventHandler()->ProcessEvent( event )) &&
71 !event.IsAllowed() )
72 {
73 /* program has vetoed */
74 win->m_adjust->value = win->m_oldPos;
75
76 gtk_signal_disconnect_by_func( GTK_OBJECT (win->m_adjust),
77 (GtkSignalFunc) gtk_spinbutt_callback,
78 (gpointer) win );
79
80 gtk_signal_emit_by_name( GTK_OBJECT(win->m_adjust), "value_changed" );
81
82 gtk_signal_connect( GTK_OBJECT (win->m_adjust),
83 "value_changed",
84 (GtkSignalFunc) gtk_spinbutt_callback,
85 (gpointer) win );
86 return;
87 }
88
89 win->m_oldPos = win->m_adjust->value;
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90
91 /* always send a thumbtrack event */
92 if (command != wxEVT_SCROLL_THUMBTRACK)
93 {
94 command = wxEVT_SCROLL_THUMBTRACK;
95 wxSpinEvent event2( command, win->GetId());
96 event2.SetPosition( value );
97 event2.SetEventObject( win );
98 win->GetEventHandler()->ProcessEvent( event2 );
99 }
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100}
101
102//-----------------------------------------------------------------------------
103// wxSpinButton
104//-----------------------------------------------------------------------------
105
106IMPLEMENT_DYNAMIC_CLASS(wxSpinButton,wxControl)
2fa7c206 107IMPLEMENT_DYNAMIC_CLASS(wxSpinEvent, wxNotifyEvent)
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108
109BEGIN_EVENT_TABLE(wxSpinButton, wxControl)
110 EVT_SIZE(wxSpinButton::OnSize)
111END_EVENT_TABLE()
112
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113bool wxSpinButton::Create(wxWindow *parent,
114 wxWindowID id,
115 const wxPoint& pos,
116 const wxSize& size,
117 long style,
118 const wxString& name)
8e189077 119{
83624f79 120 m_needParent = TRUE;
6380910c 121
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122 wxSize new_size = size,
123 sizeBest = DoGetBestSize();
124 new_size.x = sizeBest.x; // override width always
6380910c 125 if (new_size.y == -1)
9d9b7755 126 new_size.y = sizeBest.y;
6380910c 127
2259e007 128 if (!PreCreation( parent, pos, new_size ) ||
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129 !CreateBase( parent, id, pos, new_size, style, wxDefaultValidator, name ))
130 {
223d09f6 131 wxFAIL_MSG( wxT("wxXX creation failed") );
0f42a871 132 return FALSE;
4dcaf11a 133 }
8e189077 134
83624f79 135 m_oldPos = 0.0;
8e189077 136
83624f79 137 m_adjust = (GtkAdjustment*) gtk_adjustment_new( 0.0, 0.0, 100.0, 1.0, 5.0, 0.0);
6380910c 138
83624f79 139 m_widget = gtk_spin_button_new( m_adjust, 0, 0 );
6380910c 140
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141 gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
142 (int)(m_windowStyle & wxSP_WRAP) );
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143
144 gtk_signal_connect( GTK_OBJECT (m_adjust),
83624f79 145 "value_changed",
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146 (GtkSignalFunc) gtk_spinbutt_callback,
147 (gpointer) this );
148
f03fc89f 149 m_parent->DoAddChild( this );
6380910c 150
abdeb9e7 151 PostCreation(new_size);
6380910c 152
83624f79 153 return TRUE;
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154}
155
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156int wxSpinButton::GetMin() const
157{
223d09f6 158 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
6380910c 159
66d78146 160 return (int)ceil(m_adjust->lower);
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161}
162
163int wxSpinButton::GetMax() const
164{
223d09f6 165 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
6380910c 166
66d78146 167 return (int)ceil(m_adjust->upper);
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168}
169
170int wxSpinButton::GetValue() const
171{
223d09f6 172 wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
6380910c 173
66d78146 174 return (int)ceil(m_adjust->value);
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175}
176
177void wxSpinButton::SetValue( int value )
178{
223d09f6 179 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
6380910c 180
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181 float fpos = (float)value;
182 m_oldPos = fpos;
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183 if (fabs(fpos-m_adjust->value) < sensitivity) return;
184
83624f79 185 m_adjust->value = fpos;
6380910c 186
83624f79 187 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
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188}
189
190void wxSpinButton::SetRange(int minVal, int maxVal)
191{
223d09f6 192 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
6380910c 193
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194 float fmin = (float)minVal;
195 float fmax = (float)maxVal;
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196
197 if ((fabs(fmin-m_adjust->lower) < sensitivity) &&
198 (fabs(fmax-m_adjust->upper) < sensitivity))
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199 {
200 return;
201 }
6380910c 202
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203 m_adjust->lower = fmin;
204 m_adjust->upper = fmax;
8e189077 205
83624f79 206 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
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207
208 // these two calls are required due to some bug in GTK
209 Refresh();
210 SetFocus();
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211}
212
213void wxSpinButton::OnSize( wxSizeEvent &WXUNUSED(event) )
214{
223d09f6 215 wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
6380910c 216
9d9b7755 217 m_width = DoGetBestSize().x;
83624f79 218 gtk_widget_set_usize( m_widget, m_width, m_height );
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219}
220
221bool wxSpinButton::IsOwnGtkWindow( GdkWindow *window )
222{
83624f79 223 return GTK_SPIN_BUTTON(m_widget)->panel == window;
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224}
225
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226wxSize wxSpinButton::DoGetBestSize() const
227{
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228 wxSize best(15, 26); // FIXME
229 CacheBestSize(best);
230 return best;
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231}
232
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233// static
234wxVisualAttributes
235wxSpinButton::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
236{
237 // TODO: overload to accept functions like gtk_spin_button_new?
238 // Until then use a similar type
239 return GetDefaultAttributesFromGTKWidget(gtk_button_new);
240}
241
31528cd3 242#endif