The scroll bars now work correctly.

Mouse wheel support added.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6572 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/diskprobe/DataView.cpp

@@ -7,8 +7,9 @@
 #include "DataView.h"
 #include "DataEditor.h"
 
-#include <Messenger.h>
+//#include <Messenger.h>
 #include <Looper.h>
+#include <ScrollBar.h>
 
 
 static const uint32 kBlockSize = 16;
@@ -158,6 +159,9 @@ DataView::Draw(BRect updateRect)
 int32 
 DataView::PositionAt(view_focus focus, BPoint point, view_focus *_newFocus)
 {
+	if (!Bounds().Contains(point))
+		return -1;
+
 	float left = fCharWidth * (fPositionLength + kBlockSpace) + kHorizontalSpace;
 	float hexWidth = fCharWidth * kBlockSize * kHexByteWidth;
 	float width = fCharWidth;
@@ -478,6 +482,41 @@ DataView::WindowActivated(bool active)
 }
 
 
+void 
+DataView::UpdateScroller()
+{
+	float width, height;
+	GetPreferredSize(&width, &height);
+
+	BScrollBar *bar;
+	if ((bar = ScrollBar(B_HORIZONTAL)) != NULL) {
+		float delta = width - Bounds().Width();
+		if (delta < 0)
+			delta = 0;
+
+		bar->SetRange(0, delta);
+		bar->SetSteps(fCharWidth, Bounds().Width());
+		bar->SetProportion(Bounds().Width() / width);
+	}
+	if ((bar = ScrollBar(B_VERTICAL)) != NULL) {
+		float delta = height - Bounds().Height();
+		if (delta < 0)
+			delta = 0;
+
+		bar->SetRange(0, delta);
+		bar->SetSteps(fFontHeight, Bounds().Height());
+		bar->SetProportion(Bounds().Height() / height);
+	}
+}
+
+
+void
+DataView::FrameResized(float width, float height)
+{
+	UpdateScroller();
+}
+
+
 void 
 DataView::MouseDown(BPoint where)
 {

src/apps/diskprobe/DataView.h

@@ -34,10 +34,12 @@ class DataView : public BView {
 		virtual void MouseUp(BPoint where);
 
 		virtual void WindowActivated(bool active);
+		virtual void FrameResized(float width, float height);
 		virtual void SetFont(const BFont *font, uint32 properties = B_FONT_ALL);
 		virtual void GetPreferredSize(float *_width, float *_height);
 
 		void SetFontSize(float point);
+		void UpdateScroller();
 
 		void SetSelection(int32 start, int32 end, view_focus focus = kNoFocus);
 		void GetSelection(int32 &start, int32 &end);

src/apps/diskprobe/ProbeView.cpp

@@ -365,6 +365,8 @@ ProbeView::ProbeView(BRect rect, entry_ref *ref, const char *attribute)
 
 	fScrollView = new BScrollView("scroller", fDataView, B_FOLLOW_ALL, B_WILL_DRAW, true, true);
 	AddChild(fScrollView);
+
+	fDataView->UpdateScroller();
 }
 
 
@@ -383,7 +385,7 @@ ProbeView::UpdateSizeLimits()
 	fDataView->GetPreferredSize(&width, &height);
 
 	Window()->SetSizeLimits(200, width + B_V_SCROLL_BAR_WIDTH,
-		200, height + fHeaderView->Frame().bottom + 1 + B_H_SCROLL_BAR_HEIGHT + Frame().top);
+		200, height + fHeaderView->Frame().bottom + 4 + B_H_SCROLL_BAR_HEIGHT + Frame().top);
 }
 
 

src/apps/diskprobe/ProbeWindow.cpp

@@ -83,7 +83,14 @@ ProbeWindow::~ProbeWindow()
 void 
 ProbeWindow::MessageReceived(BMessage *message)
 {
-	BWindow::MessageReceived(message);
+	switch (message->what) {
+		case B_MOUSE_WHEEL_CHANGED:
+			if (BView *view = FindView("dataView"))
+				view->MessageReceived(message);
+			break;
+		default:
+			BWindow::MessageReceived(message);
+	}
 }