X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/393cbb8ff740a9a708a7241e45992ed0bc2797ee..b85db900cdc04cd70dfa940c7d99469f7f4c2b41:/src/gtk/control.cpp diff --git a/src/gtk/control.cpp b/src/gtk/control.cpp index 3c005c4329..9641245f39 100644 --- a/src/gtk/control.cpp +++ b/src/gtk/control.cpp @@ -1,33 +1,40 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: control.cpp -// Purpose: +// Name: src/gtk/control.cpp +// Purpose: wxControl implementation for wxGTK // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling, Julian Smart and Vadim Zeitlin // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "control.h" -#endif - -#include "wx/defs.h" +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #if wxUSE_CONTROLS #include "wx/control.h" -#include +#ifndef WX_PRECOMP + #include "wx/log.h" + #include "wx/settings.h" +#endif + +#include "wx/fontutil.h" +#include "wx/gtk/private.h" -//----------------------------------------------------------------------------- -// wxControl -//----------------------------------------------------------------------------- +// ============================================================================ +// wxControl implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxControl creation +// ---------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxControl, wxWindow) wxControl::wxControl() { - m_needParent = TRUE; + m_needParent = true; } bool wxControl::Create( wxWindow *parent, @@ -39,7 +46,7 @@ bool wxControl::Create( wxWindow *parent, const wxString &name ) { bool ret = wxWindow::Create(parent, id, pos, size, style, name); - + #if wxUSE_VALIDATORS SetValidator(validator); #endif @@ -47,20 +54,48 @@ bool wxControl::Create( wxWindow *parent, return ret; } +wxSize wxControl::DoGetBestSize() const +{ + // Do not return any arbitrary default value... + wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") ); + + GtkRequisition req; + req.width = 2; + req.height = 2; + (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request ) + (m_widget, &req ); + + wxSize best(req.width, req.height); + CacheBestSize(best); + return best; +} + +void wxControl::PostCreation(const wxSize& size) +{ + wxWindow::PostCreation(); + + // NB: GetBestSize needs to know the style, otherwise it will assume + // default font and if the user uses a different font, determined + // best size will be different (typically, smaller) than the desired + // size. This call ensure that a style is available at the time + // GetBestSize is called. + gtk_widget_ensure_style(m_widget); + + ApplyWidgetStyle(); + SetInitialBestSize(size); +} + +// ---------------------------------------------------------------------------- +// wxControl dealing with labels +// ---------------------------------------------------------------------------- + void wxControl::SetLabel( const wxString &label ) { - m_label.Empty(); - for ( const wxChar *pc = label; *pc != wxT('\0'); pc++ ) - { - if ( *pc == wxT('&') ) - { - pc++; // skip it -#if 0 // it would be unused anyhow for now - kbd interface not done yet - if ( *pc != wxT('&') ) m_chAccel = *pc; -#endif - } - m_label << *pc; - } + // keep the original string internally to be able to return it later (for + // consistency with the other ports) + m_label = label; + + InvalidateBestSize(); } wxString wxControl::GetLabel() const @@ -68,64 +103,287 @@ wxString wxControl::GetLabel() const return m_label; } +void wxControl::GTKSetLabelForLabel(GtkLabel *w, const wxString& label) +{ + // don't call the virtual function which might call this one back again + wxControl::SetLabel(label); + + const wxString labelGTK = GTKConvertMnemonics(label); -wxSize wxControl::DoGetBestSize() const + gtk_label_set_text_with_mnemonic(w, wxGTK_CONV(labelGTK)); +} + +// ---------------------------------------------------------------------------- +// GtkFrame helpers +// +// GtkFrames do in fact support mnemonics in GTK2+ but not through +// gtk_frame_set_label, rather you need to use a custom label widget +// instead (idea gleaned from the native gtk font dialog code in GTK) +// ---------------------------------------------------------------------------- + +GtkWidget* wxControl::GTKCreateFrame(const wxString& label) { - // Do not return any arbitrary default value... - wxASSERT_MSG( m_widget, wxT("DoGetBestSize called before creation") ); + const wxString labelGTK = GTKConvertMnemonics(label); + GtkWidget* labelwidget = gtk_label_new_with_mnemonic(wxGTK_CONV(labelGTK)); + gtk_widget_show(labelwidget); // without this it won't show... - GtkRequisition req; - req.width = 2; - req.height = 2; - (* GTK_WIDGET_CLASS( GTK_OBJECT_GET_CLASS(m_widget) )->size_request ) - (m_widget, &req ); + GtkWidget* framewidget = gtk_frame_new(NULL); + gtk_frame_set_label_widget(GTK_FRAME(framewidget), labelwidget); - return wxSize(req.width, req.height); + return framewidget; //note that the label is already set so you'll + //only need to call wxControl::SetLabel afterwards } -#ifdef __WXGTK20__ -wxString wxControl::PrepareLabelMnemonics( const wxString &label ) const +void wxControl::GTKSetLabelForFrame(GtkFrame *w, const wxString& label) { - //Format mnemonics properly for GTK2. This can be called from GTK1.x, but - //it's not very useful because mnemonics don't exist prior to GTK2. - wxString label2; - for (size_t i = 0; i < label.Len(); i++) + GtkLabel* labelwidget = GTK_LABEL(gtk_frame_get_label_widget(w)); + GTKSetLabelForLabel(labelwidget, label); +} + +void wxControl::GTKFrameApplyWidgetStyle(GtkFrame* w, GtkRcStyle* style) +{ + gtk_widget_modify_style(GTK_WIDGET(w), style); + gtk_widget_modify_style(gtk_frame_get_label_widget (w), style); +} + +void wxControl::GTKFrameSetMnemonicWidget(GtkFrame* w, GtkWidget* widget) +{ + GtkLabel* labelwidget = GTK_LABEL(gtk_frame_get_label_widget(w)); + + gtk_label_set_mnemonic_widget(labelwidget, widget); +} + +// ---------------------------------------------------------------------------- +// worker function implementing both GTKConvert/RemoveMnemonics() +// +// notice that under GTK+ 1 we only really need to support MNEMONICS_REMOVE as +// it doesn't support mnemonics anyhow but this would make the code so ugly +// that we do the same thing for GKT+ 1 and 2 +// ---------------------------------------------------------------------------- + +enum MnemonicsFlag +{ + MNEMONICS_REMOVE, + MNEMONICS_CONVERT +}; + +static wxString GTKProcessMnemonics(const wxString& label, MnemonicsFlag flag) +{ + const size_t len = label.length(); + wxString labelGTK; + labelGTK.reserve(len); + for ( size_t i = 0; i < len; i++ ) { - if (label.GetChar(i) == wxT('&')) - { - //Mnemonic escape sequence "&&" is a literal "&" in the output. - if (label.GetChar(i + 1) == wxT('&')) - { - label2 << wxT('&'); - i++; - } - //Handle special case of "&_" (i.e. "_" is the mnemonic). - //FIXME - Is it possible to use "_" as a GTK mnemonic? Just use a - //dash for now. - else if (label.GetChar(i + 1) == wxT('_')) - { - label2 << wxT("_-"); - i++; - } - //Replace WX mnemonic indicator "&" with GTK indicator "_". - else - { - label2 << wxT('_'); - } - } - else if (label.GetChar(i) == wxT('_')) + wxChar ch = label[i]; + + switch ( ch ) { - //Escape any underlines in the string so GTK doesn't use them. - label2 << wxT("__"); + case wxT('&'): + if ( i == len - 1 ) + { + // "&" at the end of string is an error + wxLogDebug(wxT("Invalid label \"%s\"."), label.c_str()); + break; + } + + ch = label[++i]; // skip '&' itself + switch ( ch ) + { + case wxT('&'): + // special case: "&&" is not a mnemonic at all but just + // an escaped "&" + labelGTK += wxT('&'); + break; + + case wxT('_'): + if ( flag == MNEMONICS_CONVERT ) + { + // '_' can't be a GTK mnemonic apparently so + // replace it with something similar + labelGTK += wxT("_-"); + break; + } + //else: fall through + + default: + if ( flag == MNEMONICS_CONVERT ) + labelGTK += wxT('_'); + labelGTK += ch; + } + break; + + case wxT('_'): + if ( flag == MNEMONICS_CONVERT ) + { + // escape any existing underlines in the string so that + // they don't become mnemonics accidentally + labelGTK += wxT("__"); + break; + } + //else: fall through + + default: + labelGTK += ch; } + } + + return labelGTK; +} + +/* static */ +wxString wxControl::GTKRemoveMnemonics(const wxString& label) +{ + return GTKProcessMnemonics(label, MNEMONICS_REMOVE); +} + +/* static */ +wxString wxControl::GTKConvertMnemonics(const wxString& label) +{ + return GTKProcessMnemonics(label, MNEMONICS_CONVERT); +} + +// ---------------------------------------------------------------------------- +// wxControl styles (a.k.a. attributes) +// ---------------------------------------------------------------------------- + +wxVisualAttributes wxControl::GetDefaultAttributes() const +{ + return GetDefaultAttributesFromGTKWidget(m_widget, + UseGTKStyleBase()); +} + + +#define SHIFT (8*(sizeof(short int)-sizeof(char))) + +// static +wxVisualAttributes +wxControl::GetDefaultAttributesFromGTKWidget(GtkWidget* widget, + bool useBase, + int state) +{ + GtkStyle* style; + wxVisualAttributes attr; + + style = gtk_rc_get_style(widget); + if (!style) + style = gtk_widget_get_default_style(); + + if (!style) + { + return wxWindow::GetClassDefaultAttributes(wxWINDOW_VARIANT_NORMAL); + } + + if (state == -1) + state = GTK_STATE_NORMAL; + + // get the style's colours + attr.colFg = wxColour(style->fg[state].red >> SHIFT, + style->fg[state].green >> SHIFT, + style->fg[state].blue >> SHIFT); + if (useBase) + attr.colBg = wxColour(style->base[state].red >> SHIFT, + style->base[state].green >> SHIFT, + style->base[state].blue >> SHIFT); + else + attr.colBg = wxColour(style->bg[state].red >> SHIFT, + style->bg[state].green >> SHIFT, + style->bg[state].blue >> SHIFT); + + // get the style's font + if ( !style->font_desc ) + style = gtk_widget_get_default_style(); + if ( style && style->font_desc ) + { + wxNativeFontInfo info; + info.description = pango_font_description_copy(style->font_desc); + attr.font = wxFont(info); + } + else + { + GtkSettings *settings = gtk_settings_get_default(); + gchar *font_name = NULL; + g_object_get ( settings, + "gtk-font-name", + &font_name, + NULL); + if (!font_name) + attr.font = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT ); else - { - label2 << label.GetChar(i); - } + attr.font = wxFont(wxString::FromAscii(font_name)); + g_free (font_name); } - return label2; + + return attr; } -#endif -#endif // wxUSE_CONTROLS +//static +wxVisualAttributes +wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNew_t widget_new, + bool useBase, + int state) +{ + wxVisualAttributes attr; + // NB: we need toplevel window so that GTK+ can find the right style + GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL); + GtkWidget* widget = widget_new(); + gtk_container_add(GTK_CONTAINER(wnd), widget); + attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state); + gtk_widget_destroy(wnd); + return attr; +} + +//static +wxVisualAttributes +wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromStr_t widget_new, + bool useBase, + int state) +{ + wxVisualAttributes attr; + // NB: we need toplevel window so that GTK+ can find the right style + GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL); + GtkWidget* widget = widget_new(""); + gtk_container_add(GTK_CONTAINER(wnd), widget); + attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state); + gtk_widget_destroy(wnd); + return attr; +} + + +//static +wxVisualAttributes +wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromAdj_t widget_new, + bool useBase, + int state) +{ + wxVisualAttributes attr; + // NB: we need toplevel window so that GTK+ can find the right style + GtkWidget *wnd = gtk_window_new(GTK_WINDOW_TOPLEVEL); + GtkWidget* widget = widget_new(NULL); + gtk_container_add(GTK_CONTAINER(wnd), widget); + attr = GetDefaultAttributesFromGTKWidget(widget, useBase, state); + gtk_widget_destroy(wnd); + return attr; +} + +// ---------------------------------------------------------------------------- +// idle handling +// ---------------------------------------------------------------------------- + +void wxControl::OnInternalIdle() +{ + if ( GtkShowFromOnIdle() ) + return; + + if ( GTK_WIDGET_REALIZED(m_widget) ) + { + GTKUpdateCursor(); + + GTKSetDelayedFocusIfNeeded(); + } + + if ( wxUpdateUIEvent::CanUpdate(this) ) + UpdateWindowUI(wxUPDATE_UI_FROMIDLE); +} + +#endif // wxUSE_CONTROLS