| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/gtk1/spinbutt.cpp |
| 3 | // Purpose: wxSpinCtrl |
| 4 | // Author: Robert |
| 5 | // Modified by: |
| 6 | // RCS-ID: $Id$ |
| 7 | // Copyright: (c) Robert Roebling |
| 8 | // Licence: wxWindows licence |
| 9 | ///////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | // For compilers that support precompilation, includes "wx.h". |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #if wxUSE_SPINCTRL |
| 15 | |
| 16 | #include "wx/spinctrl.h" |
| 17 | |
| 18 | #ifndef WX_PRECOMP |
| 19 | #include "wx/utils.h" |
| 20 | #include "wx/textctrl.h" // for wxEVT_COMMAND_TEXT_UPDATED |
| 21 | #include "wx/math.h" |
| 22 | #endif |
| 23 | |
| 24 | #include "wx/gtk1/private.h" |
| 25 | |
| 26 | //----------------------------------------------------------------------------- |
| 27 | // idle system |
| 28 | //----------------------------------------------------------------------------- |
| 29 | |
| 30 | extern void wxapp_install_idle_handler(); |
| 31 | extern bool g_isIdle; |
| 32 | |
| 33 | static const float sensitivity = 0.02; |
| 34 | |
| 35 | //----------------------------------------------------------------------------- |
| 36 | // data |
| 37 | //----------------------------------------------------------------------------- |
| 38 | |
| 39 | extern bool g_blockEventsOnDrag; |
| 40 | |
| 41 | //----------------------------------------------------------------------------- |
| 42 | // "value_changed" |
| 43 | //----------------------------------------------------------------------------- |
| 44 | |
| 45 | extern "C" { |
| 46 | static void gtk_spinctrl_callback( GtkWidget *WXUNUSED(widget), wxSpinCtrl *win ) |
| 47 | { |
| 48 | if (g_isIdle) wxapp_install_idle_handler(); |
| 49 | |
| 50 | if (!win->m_hasVMT) return; |
| 51 | if (g_blockEventsOnDrag) return; |
| 52 | |
| 53 | wxCommandEvent event( wxEVT_COMMAND_SPINCTRL_UPDATED, win->GetId()); |
| 54 | event.SetEventObject( win ); |
| 55 | |
| 56 | // note that we don't use wxSpinCtrl::GetValue() here because it would |
| 57 | // adjust the value to fit into the control range and this means that we |
| 58 | // would never be able to enter an "invalid" value in the control, even |
| 59 | // temporarily - and trying to enter 10 into the control which accepts the |
| 60 | // values in range 5..50 is then, ummm, quite challenging (hint: you can't |
| 61 | // enter 1!) (VZ) |
| 62 | event.SetInt( (int)ceil(win->m_adjust->value) ); |
| 63 | win->GetEventHandler()->ProcessEvent( event ); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | //----------------------------------------------------------------------------- |
| 68 | // "changed" |
| 69 | //----------------------------------------------------------------------------- |
| 70 | |
| 71 | extern "C" { |
| 72 | static void |
| 73 | gtk_spinctrl_text_changed_callback( GtkWidget *WXUNUSED(widget), wxSpinCtrl *win ) |
| 74 | { |
| 75 | if (!win->m_hasVMT) return; |
| 76 | |
| 77 | if (g_isIdle) |
| 78 | wxapp_install_idle_handler(); |
| 79 | |
| 80 | wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() ); |
| 81 | event.SetEventObject( win ); |
| 82 | |
| 83 | // see above |
| 84 | event.SetInt( (int)ceil(win->m_adjust->value) ); |
| 85 | win->GetEventHandler()->ProcessEvent( event ); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | //----------------------------------------------------------------------------- |
| 90 | // wxSpinCtrl |
| 91 | //----------------------------------------------------------------------------- |
| 92 | |
| 93 | IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl,wxControl) |
| 94 | |
| 95 | BEGIN_EVENT_TABLE(wxSpinCtrl, wxControl) |
| 96 | EVT_CHAR(wxSpinCtrl::OnChar) |
| 97 | END_EVENT_TABLE() |
| 98 | |
| 99 | bool wxSpinCtrl::Create(wxWindow *parent, wxWindowID id, |
| 100 | const wxString& value, |
| 101 | const wxPoint& pos, const wxSize& size, |
| 102 | long style, |
| 103 | int min, int max, int initial, |
| 104 | const wxString& name) |
| 105 | { |
| 106 | m_needParent = true; |
| 107 | m_acceptsFocus = true; |
| 108 | |
| 109 | if (!PreCreation( parent, pos, size ) || |
| 110 | !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name )) |
| 111 | { |
| 112 | wxFAIL_MSG( wxT("wxSpinCtrl creation failed") ); |
| 113 | return false; |
| 114 | } |
| 115 | |
| 116 | m_oldPos = initial; |
| 117 | |
| 118 | m_adjust = (GtkAdjustment*) gtk_adjustment_new( initial, min, max, 1.0, 5.0, 0.0); |
| 119 | |
| 120 | m_widget = gtk_spin_button_new( m_adjust, 1, 0 ); |
| 121 | |
| 122 | gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget), |
| 123 | (int)(m_windowStyle & wxSP_WRAP) ); |
| 124 | |
| 125 | GtkEnableEvents(); |
| 126 | |
| 127 | m_parent->DoAddChild( this ); |
| 128 | |
| 129 | PostCreation(size); |
| 130 | |
| 131 | SetValue( value ); |
| 132 | |
| 133 | return true; |
| 134 | } |
| 135 | |
| 136 | void wxSpinCtrl::GtkDisableEvents() |
| 137 | { |
| 138 | gtk_signal_disconnect_by_func( GTK_OBJECT(m_adjust), |
| 139 | GTK_SIGNAL_FUNC(gtk_spinctrl_callback), |
| 140 | (gpointer) this ); |
| 141 | |
| 142 | gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget), |
| 143 | GTK_SIGNAL_FUNC(gtk_spinctrl_text_changed_callback), |
| 144 | (gpointer) this ); |
| 145 | } |
| 146 | |
| 147 | void wxSpinCtrl::GtkEnableEvents() |
| 148 | { |
| 149 | gtk_signal_connect( GTK_OBJECT (m_adjust), |
| 150 | "value_changed", |
| 151 | GTK_SIGNAL_FUNC(gtk_spinctrl_callback), |
| 152 | (gpointer) this ); |
| 153 | |
| 154 | gtk_signal_connect( GTK_OBJECT(m_widget), |
| 155 | "changed", |
| 156 | GTK_SIGNAL_FUNC(gtk_spinctrl_text_changed_callback), |
| 157 | (gpointer)this); |
| 158 | } |
| 159 | |
| 160 | int wxSpinCtrl::GetMin() const |
| 161 | { |
| 162 | wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") ); |
| 163 | |
| 164 | return (int)ceil(m_adjust->lower); |
| 165 | } |
| 166 | |
| 167 | int wxSpinCtrl::GetMax() const |
| 168 | { |
| 169 | wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") ); |
| 170 | |
| 171 | return (int)ceil(m_adjust->upper); |
| 172 | } |
| 173 | |
| 174 | int wxSpinCtrl::GetValue() const |
| 175 | { |
| 176 | wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") ); |
| 177 | |
| 178 | gtk_spin_button_update( GTK_SPIN_BUTTON(m_widget) ); |
| 179 | |
| 180 | return (int)ceil(m_adjust->value); |
| 181 | } |
| 182 | |
| 183 | void wxSpinCtrl::SetValue( const wxString& value ) |
| 184 | { |
| 185 | wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") ); |
| 186 | |
| 187 | int n; |
| 188 | if ( (wxSscanf(value, wxT("%d"), &n) == 1) ) |
| 189 | { |
| 190 | // a number - set it |
| 191 | SetValue(n); |
| 192 | } |
| 193 | else |
| 194 | { |
| 195 | // invalid number - set text as is (wxMSW compatible) |
| 196 | GtkDisableEvents(); |
| 197 | gtk_entry_set_text( GTK_ENTRY(m_widget), wxGTK_CONV( value ) ); |
| 198 | GtkEnableEvents(); |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | void wxSpinCtrl::SetValue( int value ) |
| 203 | { |
| 204 | wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") ); |
| 205 | |
| 206 | float fpos = (float)value; |
| 207 | m_oldPos = fpos; |
| 208 | if (fabs(fpos-m_adjust->value) < sensitivity) return; |
| 209 | |
| 210 | m_adjust->value = fpos; |
| 211 | |
| 212 | GtkDisableEvents(); |
| 213 | gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); |
| 214 | GtkEnableEvents(); |
| 215 | } |
| 216 | |
| 217 | void wxSpinCtrl::SetSelection(long from, long to) |
| 218 | { |
| 219 | // translate from wxWidgets conventions to GTK+ ones: (-1, -1) means the |
| 220 | // entire range |
| 221 | if ( from == -1 && to == -1 ) |
| 222 | { |
| 223 | from = 0; |
| 224 | to = INT_MAX; |
| 225 | } |
| 226 | |
| 227 | gtk_editable_select_region( GTK_EDITABLE(m_widget), (gint)from, (gint)to ); |
| 228 | } |
| 229 | |
| 230 | void wxSpinCtrl::SetRange(int minVal, int maxVal) |
| 231 | { |
| 232 | wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") ); |
| 233 | |
| 234 | float fmin = (float)minVal; |
| 235 | float fmax = (float)maxVal; |
| 236 | |
| 237 | if ((fabs(fmin-m_adjust->lower) < sensitivity) && |
| 238 | (fabs(fmax-m_adjust->upper) < sensitivity)) |
| 239 | { |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | m_adjust->lower = fmin; |
| 244 | m_adjust->upper = fmax; |
| 245 | |
| 246 | gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); |
| 247 | |
| 248 | // these two calls are required due to some bug in GTK |
| 249 | Refresh(); |
| 250 | SetFocus(); |
| 251 | } |
| 252 | |
| 253 | void wxSpinCtrl::OnChar( wxKeyEvent &event ) |
| 254 | { |
| 255 | wxCHECK_RET( m_widget != NULL, wxT("invalid spin ctrl") ); |
| 256 | |
| 257 | if (event.GetKeyCode() == WXK_RETURN) |
| 258 | { |
| 259 | wxWindow *top_frame = m_parent; |
| 260 | while (top_frame->GetParent() && !(top_frame->IsTopLevel())) |
| 261 | top_frame = top_frame->GetParent(); |
| 262 | |
| 263 | if ( GTK_IS_WINDOW(top_frame->m_widget) ) |
| 264 | { |
| 265 | GtkWindow *window = GTK_WINDOW(top_frame->m_widget); |
| 266 | if ( window ) |
| 267 | { |
| 268 | GtkWidget *widgetDef = window->default_widget; |
| 269 | |
| 270 | if ( widgetDef ) |
| 271 | { |
| 272 | gtk_widget_activate(widgetDef); |
| 273 | return; |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | if ((event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER)) |
| 280 | { |
| 281 | wxCommandEvent evt( wxEVT_COMMAND_TEXT_ENTER, m_windowId ); |
| 282 | evt.SetEventObject(this); |
| 283 | GtkSpinButton *gsb = GTK_SPIN_BUTTON(m_widget); |
| 284 | wxString val = wxGTK_CONV_BACK( gtk_entry_get_text( &gsb->entry ) ); |
| 285 | evt.SetString( val ); |
| 286 | if (GetEventHandler()->ProcessEvent(evt)) return; |
| 287 | } |
| 288 | |
| 289 | event.Skip(); |
| 290 | } |
| 291 | |
| 292 | bool wxSpinCtrl::IsOwnGtkWindow( GdkWindow *window ) |
| 293 | { |
| 294 | if (GTK_SPIN_BUTTON(m_widget)->entry.text_area == window) return true; |
| 295 | |
| 296 | if (GTK_SPIN_BUTTON(m_widget)->panel == window) return true; |
| 297 | |
| 298 | return false; |
| 299 | } |
| 300 | |
| 301 | wxSize wxSpinCtrl::DoGetBestSize() const |
| 302 | { |
| 303 | wxSize ret( wxControl::DoGetBestSize() ); |
| 304 | wxSize best(95, ret.y); |
| 305 | CacheBestSize(best); |
| 306 | return best; |
| 307 | } |
| 308 | |
| 309 | // static |
| 310 | wxVisualAttributes |
| 311 | wxSpinCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) |
| 312 | { |
| 313 | // TODO: overload to accept functions like gtk_spin_button_new? |
| 314 | // Until then use a similar type |
| 315 | return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true); |
| 316 | } |
| 317 | |
| 318 | #endif |
| 319 | // wxUSE_SPINCTRL |