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[wxWidgets.git] / src / motif / scrolbar.cpp

diff --git a/src/motif/scrolbar.cpp b/src/motif/scrolbar.cpp
index 99e5316bebb7a604df58cf712292726f5f253628..f6f2df3d3635727e026d02a508b8ab0bf9be2d73 100644 (file)
--- a/src/motif/scrolbar.cpp
+++ b/src/motif/scrolbar.cpp
@@ -6,7 +6,7 @@
 // Created:     17/09/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
-// Licence:    wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
@@ -15,9 +15,18 @@
 
 #include "wx/scrolbar.h"
 
+#include <X11/IntrinsicP.h>
+#include <Xm/Xm.h>
+#include <Xm/RowColumn.h>
+#include <Xm/ScrollBar.h>
+
+#include <wx/motif/private.h>
+
+static void wxScrollBarCallback(Widget widget, XtPointer clientData,
+                        XmScaleCallbackStruct *cbs);
+
 #if !USE_SHARED_LIBRARY
 IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
-
 #endif
 
 // Scrollbar
@@ -31,16 +40,61 @@ bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
         return FALSE;
     parent->AddChild(this);
     SetName(name);
-       SetValidator(validator);
-    
+    m_backgroundColour = parent->GetBackgroundColour();
+    m_foregroundColour = parent->GetForegroundColour();
+    SetValidator(validator);
+
     m_windowStyle = style;
 
     if ( id == -1 )
-           m_windowId = (int)NewControlId();
+        m_windowId = (int)NewControlId();
     else
-           m_windowId = id;
+        m_windowId = id;
+
+    int x = pos.x;
+    int y = pos.y;
+    int width = size.x;
+    int height = size.y;
+
+    if (width == -1)
+    {
+      if (style & wxHORIZONTAL)
+        width = 140;
+      else
+        width = 12;
+    }
+    if (height == -1)
+    {
+      if (style & wxVERTICAL)
+        height = 140;
+      else
+        height = 12;
+    }
+
+    Widget parentWidget = (Widget) parent->GetClientWidget();
+    int direction = (style & wxHORIZONTAL) ? XmHORIZONTAL: XmVERTICAL;
+
+    Widget scrollBarWidget = XtVaCreateManagedWidget("scrollBarWidget",
+                  xmScrollBarWidgetClass,  parentWidget,
+                  XmNorientation,      direction,
+                  NULL);
+
+    m_mainWidget = (Widget) scrollBarWidget;
+
+    // This will duplicate other events
+    //    XtAddCallback(scrollBarWidget, XmNvalueChangedCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNdragCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNdecrementCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNincrementCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNpageDecrementCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNpageIncrementCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNtoTopCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+    XtAddCallback(scrollBarWidget, XmNtoBottomCallback, (XtCallbackProc)wxScrollBarCallback, (XtPointer)this);
+
+    SetCanAddEventHandler(TRUE);
+    AttachWidget (parent, m_mainWidget, (WXWidget) NULL, x, y, width, height);
+    ChangeBackgroundColour();
 
-    // TODO create scrollbar
     return TRUE;
 }
 
@@ -48,15 +102,27 @@ wxScrollBar::~wxScrollBar()
 {
 }
 
-void wxScrollBar::SetPosition(int viewStart)
+void wxScrollBar::SetThumbPosition(int pos)
 {
-    // TODO
+       if (m_mainWidget)
+       {
+               XtVaSetValues ((Widget) m_mainWidget,
+                               XmNvalue, pos,
+                               NULL);
+       }
 }
 
-int wxScrollBar::GetPosition() const
+int wxScrollBar::GetThumbPosition() const
 {
-    // TODO
-    return 0;
+       if (m_mainWidget)
+       {
+        int pos;
+        XtVaGetValues((Widget) m_mainWidget,
+            XmNvalue, &pos, NULL);
+        return pos;
+    }
+    else
+        return 0;
 }
 
 void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize,
@@ -66,13 +132,111 @@ void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageS
     m_pageSize = thumbSize;
     m_objectSize = range;
 
-    // TODO
-}
+    if (range == 0)
+      range = 1;
+    if (thumbSize == 0)
+      thumbSize = 1;
 
+    XtVaSetValues((Widget) m_mainWidget,
+         XmNvalue, position,
+         XmNminimum, 0,
+         XmNmaximum, range,
+         XmNsliderSize, thumbSize,
+         XmNpageIncrement, pageSize,
+         NULL);
+}
 
 void wxScrollBar::Command(wxCommandEvent& event)
 {
-    SetPosition(event.m_commandInt);
+    SetThumbPosition(event.m_commandInt);
     ProcessCommand(event);
 }
 
+void wxScrollBar::ChangeFont(bool keepOriginalSize)
+{
+    // TODO
+    // Do anything for a scrollbar? A font will never be seen.
+}
+
+void wxScrollBar::ChangeBackgroundColour()
+{
+    wxWindow::ChangeBackgroundColour();
+
+    XtVaSetValues ((Widget) GetMainWidget(),
+        XmNtroughColor, m_backgroundColour.AllocColour(XtDisplay((Widget) GetMainWidget())),
+        NULL);
+}
+
+void wxScrollBar::ChangeForegroundColour()
+{
+    wxWindow::ChangeForegroundColour();
+}
+
+static void wxScrollBarCallback(Widget widget, XtPointer clientData,
+                        XmScaleCallbackStruct *cbs)
+{
+    wxScrollBar *scrollBar = (wxScrollBar *)clientData;
+
+    wxEventType eventType = wxEVT_NULL;
+    switch (cbs->reason)
+    {
+        case XmCR_INCREMENT:
+        {
+            eventType = wxEVT_SCROLL_LINEDOWN;
+            break;
+        }
+        case XmCR_DECREMENT:
+        {
+            eventType = wxEVT_SCROLL_LINEUP;
+            break;
+        }
+        case XmCR_DRAG:
+        {
+            eventType = wxEVT_SCROLL_THUMBTRACK;
+            break;
+        }
+        case XmCR_VALUE_CHANGED:
+        {
+            // TODO: Should this be intercepted too, or will it cause
+            // duplicate events?
+            eventType = wxEVT_SCROLL_THUMBTRACK;
+            break;
+        }
+        case XmCR_PAGE_INCREMENT:
+        {
+            eventType = wxEVT_SCROLL_PAGEDOWN;
+            break;
+        }
+        case XmCR_PAGE_DECREMENT:
+        {
+            eventType = wxEVT_SCROLL_PAGEUP;
+            break;
+        }
+        case XmCR_TO_TOP:
+        {
+            eventType = wxEVT_SCROLL_TOP;
+            break;
+        }
+        case XmCR_TO_BOTTOM:
+        {
+            eventType = wxEVT_SCROLL_BOTTOM;
+            break;
+        }
+        default:
+        {
+            // Should never get here
+            wxFAIL_MSG("Unknown scroll event.");
+            break;
+        }
+    }
+
+    wxScrollEvent event(eventType, scrollBar->GetId());
+    event.SetEventObject(scrollBar);
+    event.SetPosition(cbs->value);
+    scrollBar->GetEventHandler()->ProcessEvent(event);
+/*
+    if (!scrollBar->inSetValue)
+      scrollBar->ProcessCommand(event);
+*/
+}
+