X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d9a4f62064559ddf7b88afb1bdcfbdf22893d9a5..4b7b750dd1ffd0d26b78728adb613b282a37c058:/src/gtk/scrolwin.cpp diff --git a/src/gtk/scrolwin.cpp b/src/gtk/scrolwin.cpp index 40fd6bed32..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 // ---------------------------------------------------------------------------- @@ -268,13 +251,13 @@ void wxScrolledWindow::SetScrollbars (int pixelsPerUnitX, int pixelsPerUnitY, m_hAdjust->upper = noUnitsX; m_hAdjust->value = xPos; m_hAdjust->step_increment = 1.0; - m_hAdjust->page_increment = 1.0; + m_hAdjust->page_increment = 2.0; m_vAdjust->lower = 0.0; m_vAdjust->upper = noUnitsY; m_vAdjust->value = yPos; m_vAdjust->step_increment = 1.0; - m_vAdjust->page_increment = 1.0; + m_vAdjust->page_increment = 2.0; AdjustScrollbars(); } @@ -294,6 +277,9 @@ void wxScrolledWindow::AdjustScrollbars() else m_vAdjust->page_size = (h / m_yScrollPixelsPerLine); + m_xScrollLinesPerPage = (int)(m_hAdjust->page_size + 0.5); + m_yScrollLinesPerPage = (int)(m_vAdjust->page_size + 0.5); + gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" ); gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" ); } @@ -348,7 +334,7 @@ void wxScrolledWindow::SetScrollPageSize(int orient, int pageSize) void wxScrolledWindow::OnScroll(wxScrollWinEvent& event) { int orient = event.GetOrientation(); - + int nScrollInc = CalcScrollInc(event); if (nScrollInc == 0) return; @@ -398,34 +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(); } } @@ -442,11 +434,8 @@ void wxScrolledWindow::GtkVScroll( float value ) if (y_pos == m_yScrollPosition) return; - int old_y = m_yScrollPosition; - m_yScrollPosition = y_pos; - GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget); - GtkRange *range = GTK_RANGE(scrolledWindow->hscrollbar); + GtkRange *range = GTK_RANGE(scrolledWindow->vscrollbar); wxEventType command = wxEVT_SCROLLWIN_THUMBTRACK; if (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLLWIN_LINEUP; @@ -454,28 +443,23 @@ void wxScrolledWindow::GtkVScroll( float value ) else if (range->scroll_type == GTK_SCROLL_PAGE_BACKWARD) command = wxEVT_SCROLLWIN_PAGEUP; else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLLWIN_PAGEDOWN; - wxScrollWinEvent event( command, m_yScrollPosition, wxVERTICAL ); + wxScrollWinEvent event( command, y_pos, wxVERTICAL ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - - m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine ); } void wxScrolledWindow::GtkHScroll( float value ) { if (!m_targetWindow) return; - + if (m_xScrollPixelsPerLine == 0) return; int x_pos = (int)(value+0.5); - + if (x_pos == m_xScrollPosition) return; - - int old_x = m_xScrollPosition; - m_xScrollPosition = x_pos; GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(m_widget); GtkRange *range = GTK_RANGE(scrolledWindow->hscrollbar); @@ -486,11 +470,9 @@ void wxScrolledWindow::GtkHScroll( float value ) else if (range->scroll_type == GTK_SCROLL_PAGE_BACKWARD) command = wxEVT_SCROLLWIN_PAGEUP; else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLLWIN_PAGEDOWN; - wxScrollWinEvent event( command, m_xScrollPosition, wxHORIZONTAL ); + wxScrollWinEvent event( command, x_pos, wxHORIZONTAL ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - - m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 ); } void wxScrolledWindow::EnableScrolling (bool x_scroll, bool y_scroll) @@ -587,18 +569,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) { if (m_xScrollPixelsPerLine > 0) { - int w, h; - m_targetWindow->GetClientSize(&w, &h); - - int nMaxWidth = m_xScrollLines*m_xScrollPixelsPerLine; - int noPositions = (int) ( ((nMaxWidth - w)/(double)m_xScrollPixelsPerLine) + 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(); @@ -607,18 +584,13 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) { if (m_yScrollPixelsPerLine > 0) { - int w, h; - m_targetWindow->GetClientSize(&w, &h); - - int nMaxHeight = m_yScrollLines*m_yScrollPixelsPerLine; - int noPositions = (int) ( ((nMaxHeight - h)/(double)m_yScrollPixelsPerLine) + 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(); @@ -627,6 +599,78 @@ int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event) return nScrollInc; } +void wxScrolledWindow::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) ) +{ + wxCHECK_RET( m_widget != NULL, wxT("invalid window") ); + + wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") ); + + if (orient == wxHORIZONTAL) + { + 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 + { + 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) + { + // Just update the scrollbar, don't send any wxWindows event + GtkHDisconnectEvent(); + gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" ); + GtkHConnectEvent(); + } + else + { + // Just update the scrollbar, don't send any wxWindows event + GtkVDisconnectEvent(); + gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" ); + 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 // ----------------------------------------------------------------------------