| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/gtk/tglbtn.cpp |
| 3 | // Purpose: Definition of the wxToggleButton class, which implements a |
| 4 | // toggle button under wxGTK. |
| 5 | // Author: John Norris, minor changes by Axel Schlueter |
| 6 | // Modified by: |
| 7 | // Created: 08.02.01 |
| 8 | // RCS-ID: $Id$ |
| 9 | // Copyright: (c) 2000 Johnny C. Norris II |
| 10 | // License: Rocketeer license |
| 11 | ///////////////////////////////////////////////////////////////////////////// |
| 12 | |
| 13 | #include "wx/tglbtn.h" |
| 14 | |
| 15 | #if wxUSE_TOGGLEBTN |
| 16 | |
| 17 | #include <gdk/gdk.h> |
| 18 | #include <gtk/gtk.h> |
| 19 | |
| 20 | extern void wxapp_install_idle_handler(); |
| 21 | extern bool g_isIdle; |
| 22 | extern bool g_blockEventsOnDrag; |
| 23 | extern wxCursor g_globalCursor; |
| 24 | |
| 25 | // void gtk_togglebutton_clicked_callback(GtkWidget *widget, wxToggleButton *cb) |
| 26 | // Callback function given to gtk. |
| 27 | void wxToggleButton::gtk_togglebutton_clicked_callback(GtkWidget *WXUNUSED(widget), wxToggleButton *cb) |
| 28 | { |
| 29 | if (g_isIdle) |
| 30 | wxapp_install_idle_handler(); |
| 31 | |
| 32 | if (!cb->m_hasVMT || g_blockEventsOnDrag) |
| 33 | return; |
| 34 | |
| 35 | // Generate a wx event. |
| 36 | wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, cb->GetId()); |
| 37 | event.SetInt(cb->GetValue()); |
| 38 | event.SetEventObject(cb); |
| 39 | cb->GetEventHandler()->ProcessEvent(event); |
| 40 | } |
| 41 | |
| 42 | IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl) |
| 43 | DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED) |
| 44 | |
| 45 | // bool Create(wxWindow *parent, wxWindowID id, const wxString &label, |
| 46 | // const wxPoint &pos, const wxSize &size, long style, |
| 47 | // const wxValidator& validator, const wxString &name) |
| 48 | // Create the control. |
| 49 | bool wxToggleButton::Create(wxWindow *parent, wxWindowID id, |
| 50 | const wxString &label, const wxPoint &pos, |
| 51 | const wxSize &size, long style, |
| 52 | const wxValidator& validator, |
| 53 | const wxString &name) |
| 54 | { |
| 55 | m_needParent = TRUE; |
| 56 | m_acceptsFocus = TRUE; |
| 57 | |
| 58 | if (!PreCreation(parent, pos, size) || |
| 59 | !CreateBase(parent, id, pos, size, style, validator, name )) { |
| 60 | wxFAIL_MSG(wxT("wxToggleButton creation failed")); |
| 61 | return FALSE; |
| 62 | } |
| 63 | |
| 64 | wxControl::SetLabel(label); |
| 65 | |
| 66 | // Create the gtk widget. |
| 67 | m_widget = gtk_toggle_button_new_with_label(m_label.mbc_str()); |
| 68 | |
| 69 | gtk_signal_connect(GTK_OBJECT(m_widget), "clicked", |
| 70 | GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback), |
| 71 | (gpointer *)this); |
| 72 | |
| 73 | m_parent->DoAddChild(this); |
| 74 | |
| 75 | PostCreation(); |
| 76 | |
| 77 | SetFont(parent->GetFont()); |
| 78 | |
| 79 | wxSize size_best(DoGetBestSize()); |
| 80 | wxSize new_size(size); |
| 81 | if (new_size.x == -1) |
| 82 | new_size.x = size_best.x; |
| 83 | if (new_size.y == -1) |
| 84 | new_size.y = size_best.y; |
| 85 | if ((new_size.x != size.x) || (new_size.y != size.y)) |
| 86 | SetSize(new_size.x, new_size.y); |
| 87 | |
| 88 | SetBackgroundColour(parent->GetBackgroundColour()); |
| 89 | SetForegroundColour(parent->GetForegroundColour()); |
| 90 | |
| 91 | Show(TRUE); |
| 92 | |
| 93 | return TRUE; |
| 94 | } |
| 95 | |
| 96 | // void SetValue(bool state) |
| 97 | // Set the value of the toggle button. |
| 98 | void wxToggleButton::SetValue(bool state) |
| 99 | { |
| 100 | wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button")); |
| 101 | |
| 102 | if (state == GetValue()) |
| 103 | return; |
| 104 | |
| 105 | gtk_signal_disconnect_by_func(GTK_OBJECT(m_widget), |
| 106 | GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback), |
| 107 | (gpointer *)this); |
| 108 | |
| 109 | gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(m_widget), state); |
| 110 | |
| 111 | gtk_signal_connect(GTK_OBJECT(m_widget), "clicked", |
| 112 | GTK_SIGNAL_FUNC(gtk_togglebutton_clicked_callback), |
| 113 | (gpointer *)this); |
| 114 | } |
| 115 | |
| 116 | // bool GetValue() const |
| 117 | // Get the value of the toggle button. |
| 118 | bool wxToggleButton::GetValue() const |
| 119 | { |
| 120 | wxCHECK_MSG(m_widget != NULL, FALSE, wxT("invalid toggle button")); |
| 121 | |
| 122 | return GTK_TOGGLE_BUTTON(m_widget)->active; |
| 123 | } |
| 124 | |
| 125 | // void SetLabel(const wxString& label) |
| 126 | // Set the button's label. |
| 127 | void wxToggleButton::SetLabel(const wxString& label) |
| 128 | { |
| 129 | wxCHECK_RET(m_widget != NULL, wxT("invalid toggle button")); |
| 130 | |
| 131 | wxControl::SetLabel(label); |
| 132 | |
| 133 | gtk_label_set(GTK_LABEL(GTK_BUTTON(m_widget)->child), |
| 134 | GetLabel().mbc_str()); |
| 135 | } |
| 136 | |
| 137 | // bool Enable(bool enable) |
| 138 | // Enable (or disable) the control. |
| 139 | bool wxToggleButton::Enable(bool enable /*=TRUE*/) |
| 140 | { |
| 141 | if (!wxControl::Enable(enable)) |
| 142 | return FALSE; |
| 143 | |
| 144 | gtk_widget_set_sensitive(GTK_BUTTON(m_widget)->child, enable); |
| 145 | |
| 146 | return TRUE; |
| 147 | } |
| 148 | |
| 149 | // void ApplyWidgetStyle() |
| 150 | // I don't really know what this does. |
| 151 | void wxToggleButton::ApplyWidgetStyle() |
| 152 | { |
| 153 | SetWidgetStyle(); |
| 154 | gtk_widget_set_style(m_widget, m_widgetStyle); |
| 155 | gtk_widget_set_style(GTK_BUTTON(m_widget)->child, m_widgetStyle); |
| 156 | } |
| 157 | |
| 158 | // bool IsOwnGtkWindow(GdkWindow *window) |
| 159 | // I'm not really sure what this is for, either. |
| 160 | bool wxToggleButton::IsOwnGtkWindow(GdkWindow *window) |
| 161 | { |
| 162 | return (window == GTK_TOGGLE_BUTTON(m_widget)->event_window); |
| 163 | } |
| 164 | |
| 165 | // void OnInternalIdle() |
| 166 | // Apparently gtk cursors are difficult to deal with. |
| 167 | void wxToggleButton::OnInternalIdle() |
| 168 | { |
| 169 | wxCursor cursor = m_cursor; |
| 170 | if (g_globalCursor.Ok()) |
| 171 | cursor = g_globalCursor; |
| 172 | |
| 173 | if (GTK_TOGGLE_BUTTON(m_widget)->event_window && cursor.Ok()) { |
| 174 | /* I now set the cursor the anew in every OnInternalIdle call |
| 175 | as setting the cursor in a parent window also effects the |
| 176 | windows above so that checking for the current cursor is |
| 177 | not possible. */ |
| 178 | |
| 179 | gdk_window_set_cursor(GTK_TOGGLE_BUTTON(m_widget)->event_window, |
| 180 | cursor.GetCursor()); |
| 181 | } |
| 182 | |
| 183 | UpdateWindowUI(); |
| 184 | } |
| 185 | |
| 186 | // wxSize DoGetBestSize() const |
| 187 | // Get the "best" size for this control. |
| 188 | wxSize wxToggleButton::DoGetBestSize() const |
| 189 | { |
| 190 | wxSize ret(wxControl::DoGetBestSize()); |
| 191 | if (ret.x < 80) |
| 192 | ret.x = 80; |
| 193 | |
| 194 | return ret; |
| 195 | } |
| 196 | |
| 197 | #endif // wxUSE_TOGGLEBTN |
| 198 | |