From 830ed6d97d913f9d3cf53999a82d3507d5aebde4 Mon Sep 17 00:00:00 2001 From: Robert Roebling Date: Tue, 1 May 2001 20:09:10 +0000 Subject: [PATCH] Some minor clean-ups to the wxScrolledWindow code. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9963 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775 --- include/wx/gtk/scrolwin.h | 16 ++-- include/wx/gtk1/scrolwin.h | 16 ++-- src/gtk/scrolwin.cpp | 165 ++++++++++++++++++------------------- src/gtk1/scrolwin.cpp | 165 ++++++++++++++++++------------------- 4 files changed, 176 insertions(+), 186 deletions(-) diff --git a/include/wx/gtk/scrolwin.h b/include/wx/gtk/scrolwin.h index 2133e8f4cc..c9abfd3dce 100644 --- a/include/wx/gtk/scrolwin.h +++ b/include/wx/gtk/scrolwin.h @@ -37,18 +37,18 @@ WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr; class WXDLLEXPORT wxScrolledWindow : public wxPanel { public: - wxScrolledWindow(); + wxScrolledWindow() + { Init(); } + wxScrolledWindow(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxScrolledWindowStyle, const wxString& name = wxPanelNameStr) - { - Create(parent, id, pos, size, style, name); - } - - ~wxScrolledWindow(); + { Create(parent, id, pos, size, style, name); } + + void Init(); bool Create(wxWindow *parent, wxWindowID id, @@ -124,6 +124,10 @@ public: void GtkVScroll( float value ); void GtkHScroll( float value ); + void GtkVConnectEvent(); + void GtkHConnectEvent(); + void GtkVDisconnectEvent(); + void GtkHDisconnectEvent(); // Calculate scroll increment virtual int CalcScrollInc(wxScrollWinEvent& event); diff --git a/include/wx/gtk1/scrolwin.h b/include/wx/gtk1/scrolwin.h index 2133e8f4cc..c9abfd3dce 100644 --- a/include/wx/gtk1/scrolwin.h +++ b/include/wx/gtk1/scrolwin.h @@ -37,18 +37,18 @@ WXDLLEXPORT_DATA(extern const wxChar*) wxPanelNameStr; class WXDLLEXPORT wxScrolledWindow : public wxPanel { public: - wxScrolledWindow(); + wxScrolledWindow() + { Init(); } + wxScrolledWindow(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxScrolledWindowStyle, const wxString& name = wxPanelNameStr) - { - Create(parent, id, pos, size, style, name); - } - - ~wxScrolledWindow(); + { Create(parent, id, pos, size, style, name); } + + void Init(); bool Create(wxWindow *parent, wxWindowID id, @@ -124,6 +124,10 @@ public: void GtkVScroll( float value ); void GtkHScroll( float value ); + void GtkVConnectEvent(); + void GtkHConnectEvent(); + void GtkVDisconnectEvent(); + void GtkHDisconnectEvent(); // Calculate scroll increment virtual int CalcScrollInc(wxScrollWinEvent& event); diff --git a/src/gtk/scrolwin.cpp b/src/gtk/scrolwin.cpp index 2de10148a0..7e38b4c7b2 100644 --- a/src/gtk/scrolwin.cpp +++ b/src/gtk/scrolwin.cpp @@ -104,8 +104,8 @@ static void gtk_scrolled_window_hscroll_callback( GtkAdjustment *adjust, wxScrol static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child ) { - /* the window might have been scrolled already, do we - have to adapt the position */ + // The window might have been scrolled already, do we + // have to adapt the position. GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow); child->m_x += pizza->xoffset; child->m_y += pizza->yoffset; @@ -122,7 +122,7 @@ static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child ) // wxScrolledWindow creation // ---------------------------------------------------------------------------- -wxScrolledWindow::wxScrolledWindow() +void wxScrolledWindow::Init() { m_xScrollPixelsPerLine = 0; m_yScrollPixelsPerLine = 0; @@ -146,6 +146,8 @@ bool wxScrolledWindow::Create(wxWindow *parent, long style, const wxString& name) { + Init(); + if (!PreCreation( parent, pos, size ) || !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name )) { @@ -155,17 +157,6 @@ bool wxScrolledWindow::Create(wxWindow *parent, m_insertCallback = wxInsertChildInScrolledWindow; - m_xScrollPixelsPerLine = 0; - m_yScrollPixelsPerLine = 0; - m_xScrollingEnabled = TRUE; - m_yScrollingEnabled = TRUE; - m_xScrollPosition = 0; - m_yScrollPosition = 0; - m_xScrollLines = 0; - m_yScrollLines = 0; - m_xScrollLinesPerPage = 0; - m_yScrollLinesPerPage = 0; - m_targetWindow = this; m_widget = gtk_scrolled_window_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL ); @@ -221,13 +212,9 @@ bool wxScrolledWindow::Create(wxWindow *parent, m_hAdjust->page_increment = 1.0; gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" ); - // these handlers get notified when screen updates are required either when - // scrolling or when the window size (and therefore scrollbar configuration) - // has changed - gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); - gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); + // Handlers for new scrollbar values + GtkVConnectEvent(); + GtkHConnectEvent(); gtk_widget_show( m_wxwindow ); @@ -241,10 +228,6 @@ bool wxScrolledWindow::Create(wxWindow *parent, return TRUE; } -wxScrolledWindow::~wxScrolledWindow() -{ -} - // ---------------------------------------------------------------------------- // setting scrolling parameters // ---------------------------------------------------------------------------- @@ -401,34 +384,40 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos ) if ((x_pos != -1) && (m_xScrollPixelsPerLine)) { + int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); + if (max < 0) max = 0; + if (x_pos > max) x_pos = max; + if (x_pos < 0) x_pos = 0; + int old_x = m_xScrollPosition; m_xScrollPosition = x_pos; m_hAdjust->value = x_pos; - wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK; - wxScrollWinEvent event( command, m_xScrollPosition, wxHORIZONTAL ); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent( event ); - m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 ); + // Just update the scrollbar, don't send any wxWindows event + GtkHDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" ); + GtkHConnectEvent(); } if ((y_pos != -1) && (m_yScrollPixelsPerLine)) { + int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); + if (max < 0) max = 0; + if (y_pos > max) y_pos = max; + if (y_pos < 0) y_pos = 0; + int old_y = m_yScrollPosition; m_yScrollPosition = y_pos; m_vAdjust->value = y_pos; - wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK; - wxScrollWinEvent event( command, m_yScrollPosition, wxVERTICAL ); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent( event ); - m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine ); + // Just update the scrollbar, don't send any wxWindows event + GtkVDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" ); + GtkVConnectEvent(); } } @@ -457,13 +446,6 @@ void wxScrolledWindow::GtkVScroll( float value ) wxScrollWinEvent event( command, y_pos, wxVERTICAL ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - -/* - int old_y = m_yScrollPosition; - m_yScrollPosition = y_pos; - - m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine ); -*/ } void wxScrolledWindow::GtkHScroll( float value ) @@ -491,13 +473,6 @@ void wxScrolledWindow::GtkHScroll( float value ) wxScrollWinEvent event( command, x_pos, wxHORIZONTAL ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - -/* - int old_x = m_xScrollPosition; - m_xScrollPosition = x_pos; - - m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 ); -*/ } void wxScrolledWindow::EnableScrolling (bool x_scroll, bool y_scroll) @@ -594,16 +569,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) { if (m_xScrollPixelsPerLine > 0) { - int w, h; - m_targetWindow->GetClientSize(&w, &h); - - int noPositions = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); - if (noPositions < 0) noPositions = 0; + int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); + if (max < 0) max = 0; if ( (m_xScrollPosition + nScrollInc) < 0 ) nScrollInc = -m_xScrollPosition; // As -ve as we can go - else if ( (m_xScrollPosition + nScrollInc) > noPositions ) - nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go + else if ( (m_xScrollPosition + nScrollInc) > max ) + nScrollInc = max - m_xScrollPosition; // As +ve as we can go } else m_targetWindow->Refresh(); @@ -612,16 +584,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) { if (m_yScrollPixelsPerLine > 0) { - int w, h; - m_targetWindow->GetClientSize(&w, &h); - - int noPositions = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); - if (noPositions < 0) noPositions = 0; + int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); + if (max < 0) max = 0; if ( (m_yScrollPosition + nScrollInc) < 0 ) nScrollInc = -m_yScrollPosition; // As -ve as we can go - else if ( (m_yScrollPosition + nScrollInc) > noPositions ) - nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go + else if ( (m_yScrollPosition + nScrollInc) > max ) + nScrollInc = max - m_yScrollPosition; // As +ve as we can go } else m_targetWindow->Refresh(); @@ -638,48 +607,70 @@ void wxScrolledWindow::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) if (orient == wxHORIZONTAL) { - float fpos = (float)pos; - if (fpos > m_hAdjust->upper - m_hAdjust->page_size) fpos = m_hAdjust->upper - m_hAdjust->page_size; - if (fpos < 0.0) fpos = 0.0; - - if (fabs(fpos-m_hAdjust->value) < 0.2) return; - m_hAdjust->value = fpos; + int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); + if (max < 0) max = 0; + + if (pos > max) pos = 0; + if (pos < 0) pos = 0; + + if (pos == (int)(m_hAdjust->value+0.5)) return; + m_hAdjust->value = pos; } else { - float fpos = (float)pos; - if (fpos > m_vAdjust->upper - m_vAdjust->page_size) fpos = m_vAdjust->upper - m_vAdjust->page_size; - if (fpos < 0.0) fpos = 0.0; - - if (fabs(fpos-m_vAdjust->value) < 0.2) return; - m_vAdjust->value = fpos; + int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); + if (max < 0) max = 0; + + if (pos > max) pos = 0; + if (pos < 0) pos = 0; + + if (pos == (int)(m_vAdjust->value+0.5)) return; + m_vAdjust->value = pos; } if (m_wxwindow->window) { if (orient == wxHORIZONTAL) { - gtk_signal_disconnect_by_func( GTK_OBJECT(m_hAdjust), - (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); - + // Just update the scrollbar, don't send any wxWindows event + GtkHDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" ); - - gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); + GtkHConnectEvent(); } else { - gtk_signal_disconnect_by_func( GTK_OBJECT(m_vAdjust), - (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); - + // Just update the scrollbar, don't send any wxWindows event + GtkVDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" ); - - gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); + GtkVConnectEvent(); } } } +void wxScrolledWindow::GtkVConnectEvent() +{ + gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed", + (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); +} + +void wxScrolledWindow::GtkHConnectEvent() +{ + gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed", + (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); +} + +void wxScrolledWindow::GtkHDisconnectEvent() +{ + gtk_signal_disconnect_by_func( GTK_OBJECT(m_hAdjust), + (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); +} + +void wxScrolledWindow::GtkVDisconnectEvent() +{ + gtk_signal_disconnect_by_func( GTK_OBJECT(m_vAdjust), + (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); +} + // ---------------------------------------------------------------------------- // event handlers // ---------------------------------------------------------------------------- diff --git a/src/gtk1/scrolwin.cpp b/src/gtk1/scrolwin.cpp index 2de10148a0..7e38b4c7b2 100644 --- a/src/gtk1/scrolwin.cpp +++ b/src/gtk1/scrolwin.cpp @@ -104,8 +104,8 @@ static void gtk_scrolled_window_hscroll_callback( GtkAdjustment *adjust, wxScrol static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child ) { - /* the window might have been scrolled already, do we - have to adapt the position */ + // The window might have been scrolled already, do we + // have to adapt the position. GtkPizza *pizza = GTK_PIZZA(parent->m_wxwindow); child->m_x += pizza->xoffset; child->m_y += pizza->yoffset; @@ -122,7 +122,7 @@ static void wxInsertChildInScrolledWindow( wxWindow* parent, wxWindow* child ) // wxScrolledWindow creation // ---------------------------------------------------------------------------- -wxScrolledWindow::wxScrolledWindow() +void wxScrolledWindow::Init() { m_xScrollPixelsPerLine = 0; m_yScrollPixelsPerLine = 0; @@ -146,6 +146,8 @@ bool wxScrolledWindow::Create(wxWindow *parent, long style, const wxString& name) { + Init(); + if (!PreCreation( parent, pos, size ) || !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name )) { @@ -155,17 +157,6 @@ bool wxScrolledWindow::Create(wxWindow *parent, m_insertCallback = wxInsertChildInScrolledWindow; - m_xScrollPixelsPerLine = 0; - m_yScrollPixelsPerLine = 0; - m_xScrollingEnabled = TRUE; - m_yScrollingEnabled = TRUE; - m_xScrollPosition = 0; - m_yScrollPosition = 0; - m_xScrollLines = 0; - m_yScrollLines = 0; - m_xScrollLinesPerPage = 0; - m_yScrollLinesPerPage = 0; - m_targetWindow = this; m_widget = gtk_scrolled_window_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL ); @@ -221,13 +212,9 @@ bool wxScrolledWindow::Create(wxWindow *parent, m_hAdjust->page_increment = 1.0; gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" ); - // these handlers get notified when screen updates are required either when - // scrolling or when the window size (and therefore scrollbar configuration) - // has changed - gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); - gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); + // Handlers for new scrollbar values + GtkVConnectEvent(); + GtkHConnectEvent(); gtk_widget_show( m_wxwindow ); @@ -241,10 +228,6 @@ bool wxScrolledWindow::Create(wxWindow *parent, return TRUE; } -wxScrolledWindow::~wxScrolledWindow() -{ -} - // ---------------------------------------------------------------------------- // setting scrolling parameters // ---------------------------------------------------------------------------- @@ -401,34 +384,40 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos ) if ((x_pos != -1) && (m_xScrollPixelsPerLine)) { + int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); + if (max < 0) max = 0; + if (x_pos > max) x_pos = max; + if (x_pos < 0) x_pos = 0; + int old_x = m_xScrollPosition; m_xScrollPosition = x_pos; m_hAdjust->value = x_pos; - wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK; - wxScrollWinEvent event( command, m_xScrollPosition, wxHORIZONTAL ); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent( event ); - m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 ); + // Just update the scrollbar, don't send any wxWindows event + GtkHDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" ); + GtkHConnectEvent(); } if ((y_pos != -1) && (m_yScrollPixelsPerLine)) { + int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); + if (max < 0) max = 0; + if (y_pos > max) y_pos = max; + if (y_pos < 0) y_pos = 0; + int old_y = m_yScrollPosition; m_yScrollPosition = y_pos; m_vAdjust->value = y_pos; - wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK; - wxScrollWinEvent event( command, m_yScrollPosition, wxVERTICAL ); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent( event ); - m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine ); + // Just update the scrollbar, don't send any wxWindows event + GtkVDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" ); + GtkVConnectEvent(); } } @@ -457,13 +446,6 @@ void wxScrolledWindow::GtkVScroll( float value ) wxScrollWinEvent event( command, y_pos, wxVERTICAL ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - -/* - int old_y = m_yScrollPosition; - m_yScrollPosition = y_pos; - - m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine ); -*/ } void wxScrolledWindow::GtkHScroll( float value ) @@ -491,13 +473,6 @@ void wxScrolledWindow::GtkHScroll( float value ) wxScrollWinEvent event( command, x_pos, wxHORIZONTAL ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - -/* - int old_x = m_xScrollPosition; - m_xScrollPosition = x_pos; - - m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 ); -*/ } void wxScrolledWindow::EnableScrolling (bool x_scroll, bool y_scroll) @@ -594,16 +569,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) { if (m_xScrollPixelsPerLine > 0) { - int w, h; - m_targetWindow->GetClientSize(&w, &h); - - int noPositions = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); - if (noPositions < 0) noPositions = 0; + int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); + if (max < 0) max = 0; if ( (m_xScrollPosition + nScrollInc) < 0 ) nScrollInc = -m_xScrollPosition; // As -ve as we can go - else if ( (m_xScrollPosition + nScrollInc) > noPositions ) - nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go + else if ( (m_xScrollPosition + nScrollInc) > max ) + nScrollInc = max - m_xScrollPosition; // As +ve as we can go } else m_targetWindow->Refresh(); @@ -612,16 +584,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) { if (m_yScrollPixelsPerLine > 0) { - int w, h; - m_targetWindow->GetClientSize(&w, &h); - - int noPositions = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); - if (noPositions < 0) noPositions = 0; + int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); + if (max < 0) max = 0; if ( (m_yScrollPosition + nScrollInc) < 0 ) nScrollInc = -m_yScrollPosition; // As -ve as we can go - else if ( (m_yScrollPosition + nScrollInc) > noPositions ) - nScrollInc = noPositions - m_yScrollPosition; // As +ve as we can go + else if ( (m_yScrollPosition + nScrollInc) > max ) + nScrollInc = max - m_yScrollPosition; // As +ve as we can go } else m_targetWindow->Refresh(); @@ -638,48 +607,70 @@ void wxScrolledWindow::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) if (orient == wxHORIZONTAL) { - float fpos = (float)pos; - if (fpos > m_hAdjust->upper - m_hAdjust->page_size) fpos = m_hAdjust->upper - m_hAdjust->page_size; - if (fpos < 0.0) fpos = 0.0; - - if (fabs(fpos-m_hAdjust->value) < 0.2) return; - m_hAdjust->value = fpos; + int max = (int)(m_hAdjust->upper - m_hAdjust->page_size + 0.5); + if (max < 0) max = 0; + + if (pos > max) pos = 0; + if (pos < 0) pos = 0; + + if (pos == (int)(m_hAdjust->value+0.5)) return; + m_hAdjust->value = pos; } else { - float fpos = (float)pos; - if (fpos > m_vAdjust->upper - m_vAdjust->page_size) fpos = m_vAdjust->upper - m_vAdjust->page_size; - if (fpos < 0.0) fpos = 0.0; - - if (fabs(fpos-m_vAdjust->value) < 0.2) return; - m_vAdjust->value = fpos; + int max = (int)(m_vAdjust->upper - m_vAdjust->page_size + 0.5); + if (max < 0) max = 0; + + if (pos > max) pos = 0; + if (pos < 0) pos = 0; + + if (pos == (int)(m_vAdjust->value+0.5)) return; + m_vAdjust->value = pos; } if (m_wxwindow->window) { if (orient == wxHORIZONTAL) { - gtk_signal_disconnect_by_func( GTK_OBJECT(m_hAdjust), - (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); - + // Just update the scrollbar, don't send any wxWindows event + GtkHDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" ); - - gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); + GtkHConnectEvent(); } else { - gtk_signal_disconnect_by_func( GTK_OBJECT(m_vAdjust), - (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); - + // Just update the scrollbar, don't send any wxWindows event + GtkVDisconnectEvent(); gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" ); - - gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed", - (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); + GtkVConnectEvent(); } } } +void wxScrolledWindow::GtkVConnectEvent() +{ + gtk_signal_connect( GTK_OBJECT(m_vAdjust), "value_changed", + (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); +} + +void wxScrolledWindow::GtkHConnectEvent() +{ + gtk_signal_connect( GTK_OBJECT(m_hAdjust), "value_changed", + (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); +} + +void wxScrolledWindow::GtkHDisconnectEvent() +{ + gtk_signal_disconnect_by_func( GTK_OBJECT(m_hAdjust), + (GtkSignalFunc) gtk_scrolled_window_hscroll_callback, (gpointer) this ); +} + +void wxScrolledWindow::GtkVDisconnectEvent() +{ + gtk_signal_disconnect_by_func( GTK_OBJECT(m_vAdjust), + (GtkSignalFunc) gtk_scrolled_window_vscroll_callback, (gpointer) this ); +} + // ---------------------------------------------------------------------------- // event handlers // ---------------------------------------------------------------------------- -- 2.45.2