X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5b8a521e5993217b027e8045f0a211957cba945d..dcae64c221450a7ca9b530ecf44757543c33a754:/src/gtk/scrolbar.cpp diff --git a/src/gtk/scrolbar.cpp b/src/gtk/scrolbar.cpp index b7d24b3460..3a44d755f0 100644 --- a/src/gtk/scrolbar.cpp +++ b/src/gtk/scrolbar.cpp @@ -1,27 +1,22 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: scrolbar.cpp +// Name: src/gtk/scrolbar.cpp // Purpose: // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" -#ifdef __GNUG__ -#pragma implementation "scrolbar.h" -#endif +#if wxUSE_SCROLLBAR #include "wx/scrolbar.h" -#if wxUSE_SCROLLBAR - #include "wx/utils.h" - -#include - -#include -#include +#include "wx/math.h" +#include "wx/gtk/private.h" //----------------------------------------------------------------------------- // idle system @@ -35,7 +30,7 @@ extern bool g_isIdle; //----------------------------------------------------------------------------- extern bool g_blockEventsOnDrag; -extern bool g_blockEventsOnScroll; +static wxEventType g_currentUpDownEvent = wxEVT_NULL; static const float sensitivity = 0.02; @@ -43,74 +38,121 @@ static const float sensitivity = 0.02; // "value_changed" //----------------------------------------------------------------------------- -static void gtk_scrollbar_callback( GtkAdjustment *adjust, wxScrollBar *win ) -{ +// FIXME: is GtkScrollType really passed to us as 2nd argument? + +extern "C" { +static void gtk_scrollbar_callback( GtkAdjustment *adjust, + wxScrollBar *win ) +{ if (g_isIdle) wxapp_install_idle_handler(); if (!win->m_hasVMT) return; if (g_blockEventsOnDrag) return; - + float diff = adjust->value - win->m_oldPos; if (fabs(diff) < sensitivity) return; - + win->m_oldPos = adjust->value; - GtkRange *range = GTK_RANGE( win->m_widget ); + wxEventType command = GtkScrollTypeToWx(GTK_SCROLL_JUMP); + + double dvalue = adjust->value; + int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5); - wxEventType command = wxEVT_SCROLL_THUMBTRACK; - if (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLL_LINEUP; - else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD) command = wxEVT_SCROLL_LINEDOWN; - else if (range->scroll_type == GTK_SCROLL_PAGE_BACKWARD) command = wxEVT_SCROLL_PAGEUP; - else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN; - - int value = (int)ceil(adjust->value); - int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL; - + + // throw a LINEUP / LINEDOWN event if necessary + if (g_currentUpDownEvent != wxEVT_NULL) + { + wxScrollEvent event( g_currentUpDownEvent, win->GetId(), value, orient ); + event.SetEventObject( win ); + win->GetEventHandler()->ProcessEvent( event ); + } + + // throw other event (wxEVT_SCROLL_THUMBTRACK) wxScrollEvent event( command, win->GetId(), value, orient ); event.SetEventObject( win ); win->GetEventHandler()->ProcessEvent( event ); - + /* wxCommandEvent cevent( wxEVT_COMMAND_SCROLLBAR_UPDATED, win->GetId() ); cevent.SetEventObject( win ); win->ProcessEvent( cevent ); */ } +} //----------------------------------------------------------------------------- // "button_press_event" from slider //----------------------------------------------------------------------------- - -static gint gtk_scrollbar_button_press_callback( GtkRange *WXUNUSED(widget), - GdkEventButton *WXUNUSED(gdk_event), +extern "C" { +static gint gtk_scrollbar_button_press_callback( GtkRange *widget, + GdkEventButton *gdk_event, wxScrollBar *win ) { if (g_isIdle) wxapp_install_idle_handler(); - win->m_isScrolling = TRUE; -// g_blockEventsOnScroll = TRUE; doesn't work in DialogEd - + // check if a LINEUP/LINEDOWN event must be thrown + // I suppose here the size of scrollbar top/bottom buttons is 16px height + if (gdk_event->type == GDK_BUTTON_PRESS && gdk_event->button == 1) + { + int scroll_height, mouse_pos; + + // get the mouse position when the click is done + if (win->HasFlag(wxSB_VERTICAL)) + { + scroll_height = GTK_WIDGET(widget)->allocation.height - 16; + mouse_pos = (int)gdk_event->y; + } + else + { + scroll_height = GTK_WIDGET(widget)->allocation.width - 16; + mouse_pos = (int)gdk_event->x; + } + + // compare mouse position to scrollbar height + if (mouse_pos > scroll_height) + g_currentUpDownEvent = wxEVT_SCROLL_LINEDOWN; + else if (mouse_pos < 16) + g_currentUpDownEvent = wxEVT_SCROLL_LINEUP; + } + return FALSE; } +} //----------------------------------------------------------------------------- // "button_release_event" from slider //----------------------------------------------------------------------------- -static gint gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget), - GdkEventButton *WXUNUSED(gdk_event), - wxScrollBar *win ) +extern "C" { +static gint +gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget), + GdkEventButton *WXUNUSED(gdk_event), + wxScrollBar *win ) { - if (g_isIdle) wxapp_install_idle_handler(); + if (g_isIdle) + wxapp_install_idle_handler(); + + if (win->m_isScrolling) + { + wxEventType command = wxEVT_SCROLL_THUMBRELEASE; + int value = (int)ceil(win->m_adjust->value); + int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL; + + wxScrollEvent event( command, win->GetId(), value, orient ); + event.SetEventObject( win ); + win->GetEventHandler()->ProcessEvent( event ); + } + + win->m_isScrolling = false; + + // reset the LINEUP/LINEDOWN flag when the mouse button is released + g_currentUpDownEvent = wxEVT_NULL; - win->m_isScrolling = FALSE; -// g_blockEventsOnScroll = FALSE; - - gtk_signal_emit_by_name( GTK_OBJECT(win->m_adjust), "value_changed" ); - return FALSE; } +} //----------------------------------------------------------------------------- // wxScrollBar @@ -118,7 +160,7 @@ static gint gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget), IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl) -wxScrollBar::~wxScrollBar(void) +wxScrollBar::~wxScrollBar() { } @@ -126,14 +168,14 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style, const wxValidator& validator, const wxString& name ) { - m_needParent = TRUE; - m_acceptsFocus = TRUE; - + m_needParent = true; + m_acceptsFocus = true; + if (!PreCreation( parent, pos, size ) || !CreateBase( parent, id, pos, size, style, validator, name )) { wxFAIL_MSG( wxT("wxScrollBar creation failed") ); - return FALSE; + return false; } m_oldPos = 0.0; @@ -144,36 +186,31 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id, m_widget = gtk_hscrollbar_new( (GtkAdjustment *) NULL ); m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) ); - - gtk_signal_connect( GTK_OBJECT(m_adjust), - "value_changed", - (GtkSignalFunc) gtk_scrollbar_callback, - (gpointer) this ); - - gtk_signal_connect( GTK_OBJECT(m_widget), - "button_press_event", - (GtkSignalFunc)gtk_scrollbar_button_press_callback, - (gpointer) this ); - - gtk_signal_connect( GTK_OBJECT(m_widget), - "button_release_event", - (GtkSignalFunc)gtk_scrollbar_button_release_callback, - (gpointer) this ); + if ( style & wxSB_VERTICAL ) + { + SetVScrollAdjustment(m_adjust); + } + + g_signal_connect (m_adjust, "value_changed", + G_CALLBACK (gtk_scrollbar_callback), this); + g_signal_connect (m_widget, "button_press_event", + G_CALLBACK (gtk_scrollbar_button_press_callback), + this); + g_signal_connect (m_widget, "button_release_event", + G_CALLBACK (gtk_scrollbar_button_release_callback), + this); m_parent->DoAddChild( this ); - - PostCreation(); - - SetBackgroundColour( parent->GetBackgroundColour() ); - - Show( TRUE ); - - return TRUE; + + PostCreation(size); + + return true; } -int wxScrollBar::GetThumbPosition(void) const +int wxScrollBar::GetThumbPosition() const { - return (int)(m_adjust->value+0.5); + double val = m_adjust->value; + return (int)(val < 0 ? val - 0.5 : val + 0.5); } int wxScrollBar::GetThumbSize() const @@ -194,13 +231,20 @@ int wxScrollBar::GetRange() const void wxScrollBar::SetThumbPosition( int viewStart ) { if (m_isScrolling) return; - + float fpos = (float)viewStart; m_oldPos = fpos; if (fabs(fpos-m_adjust->value) < 0.2) return; m_adjust->value = fpos; - - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); + + g_signal_handlers_disconnect_by_func (m_adjust, + (gpointer) gtk_scrollbar_callback, + this); + + g_signal_emit_by_name (m_adjust, "value_changed"); + + g_signal_connect (m_adjust, "value_changed", + G_CALLBACK (gtk_scrollbar_callback), this); } void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize, @@ -210,7 +254,7 @@ void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int page float frange = (float)range; float fthumb = (float)thumbSize; float fpage = (float)pageSize; - + if ((fabs(frange-m_adjust->upper) < 0.2) && (fabs(fthumb-m_adjust->page_size) < 0.2) && (fabs(fpage-m_adjust->page_increment) < 0.2)) @@ -218,9 +262,9 @@ void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int page SetThumbPosition( position ); return; } - + m_oldPos = fpos; - + m_adjust->lower = 0.0; m_adjust->upper = frange; m_adjust->value = fpos; @@ -228,11 +272,11 @@ void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int page m_adjust->page_increment = (float)(wxMax(fpage,0)); m_adjust->page_size = fthumb; - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); + g_signal_emit_by_name (m_adjust, "changed"); } /* Backward compatibility */ -int wxScrollBar::GetValue(void) const +int wxScrollBar::GetValue() const { return GetThumbPosition(); } @@ -248,7 +292,7 @@ void wxScrollBar::GetValues( int *viewStart, int *viewLength, int *objectLength, int thumb = (int)(m_adjust->page_size+0.5); int page = (int)(m_adjust->page_increment+0.5); int range = (int)(m_adjust->upper+0.5); - + *viewStart = pos; *viewLength = range; *objectLength = thumb; @@ -292,17 +336,19 @@ void wxScrollBar::SetViewLength( int viewLength ) bool wxScrollBar::IsOwnGtkWindow( GdkWindow *window ) { GtkRange *range = GTK_RANGE(m_widget); - return ( (window == GTK_WIDGET(range)->window) || - (window == range->trough) || - (window == range->slider) || - (window == range->step_forw) || - (window == range->step_back) ); + return ( (window == GTK_WIDGET(range)->window) ); +} + +wxSize wxScrollBar::DoGetBestSize() const +{ + return wxControl::DoGetBestSize(); } -void wxScrollBar::ApplyWidgetStyle() +// static +wxVisualAttributes +wxScrollBar::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) { - SetWidgetStyle(); - gtk_widget_set_style( m_widget, m_widgetStyle ); + return GetDefaultAttributesFromGTKWidget(gtk_vscrollbar_new); } #endif