DiskUsage: Usability enhancement

* When clicking in a outer sector, the middle circle now takes the color the outer sector had, helping to keep some consistency.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35779 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/diskusage/PieView.cpp

@@ -488,6 +488,11 @@ PieView::_DrawDirectory(BRect b, FileInfo* info, float parentSpan,
 		return 0.0;
 	}
 
+	if (info != NULL && info->color >= 0 && level == 0)
+		colorIdx = info->color;
+	else if (info != NULL)
+		info->color = colorIdx;
+
 	VolumeSnapshot* snapshot = fScanners[fCurrentVolume]->Snapshot();
 
 	float cx = floorf(b.left + b.Width() / 2.0 + 0.5);
@@ -528,6 +533,7 @@ PieView::_DrawDirectory(BRect b, FileInfo* info, float parentSpan,
 
 			// Record in-use space and free space for use during MouseMoved().
 			info = snapshot->rootDir;
+			info->color = colorIdx;
 			fMouseOverInfo[0].push_back(Segment(0.0, mySpan, info));
 			if (mySpan < 360.0 - kMinSegmentSpan) {
 				fMouseOverInfo[0].push_back(Segment(mySpan, 360.0,

src/apps/diskusage/Scanner.cpp

@@ -195,6 +195,7 @@ Scanner::_GetFileInfo(BDirectory* dir, FileInfo* parent)
 			entry.GetRef(&child->ref);
 			entry.GetSize(&child->size);
 			child->parent = thisDir;
+			child->color = -1;
 			thisDir->children.push_back(child);
 
 			// Send a progress report periodically.

src/apps/diskusage/Snapshot.h

@@ -35,6 +35,8 @@ struct FileInfo {
 			int					count;
 			FileInfo*			parent;
 			std::vector<FileInfo*>	children;
+
+			int					color;
 };