Debugger: Add page protection indicator to inspector.

InspectorWindow:
- We now display a label indicating if the currently inspected block
  is writable or not, so the user knows whether it's possible to modify
  the contents.

src/apps/debugger/user_interface/gui/inspector_window/InspectorWindow.cpp

@@ -14,6 +14,7 @@
 #include <ControlLook.h>
 #include <LayoutBuilder.h>
 #include <ScrollView.h>
+#include <StringView.h>
 #include <TextControl.h>
 
 #include "Architecture.h"
@@ -37,11 +38,12 @@ InspectorWindow::InspectorWindow(::Team* team, UserInterfaceListener* listener,
 	BHandler* target)
 	:
 	BWindow(BRect(100, 100, 700, 500), "Inspector", B_TITLED_WINDOW,
-		B_ASYNCHRONOUS_CONTROLS),
+		B_ASYNCHRONOUS_CONTROLS | B_AUTO_UPDATE_SIZE_LIMITS),
 	fListener(listener),
 	fAddressInput(NULL),
 	fHexMode(NULL),
 	fTextMode(NULL),
+	fWritableBlockIndicator(NULL),
 	fMemoryView(NULL),
 	fCurrentBlock(NULL),
 	fCurrentAddress(0LL),
@@ -163,6 +165,11 @@ InspectorWindow::_Init()
 		.End()
 		.Add(scrollView = new BScrollView("memory scroll",
 			NULL, 0, false, true), 3.0f)
+		.AddGroup(B_HORIZONTAL)
+			.Add(fWritableBlockIndicator = new BStringView("writableIndicator",
+				_GetCurrentWritableIndicator()))
+			.AddGlue()
+		.End()
 	.End();
 
 	fHexMode->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
@@ -514,4 +521,23 @@ InspectorWindow::_SetCurrentBlock(TeamMemoryBlock* block)
 
 	fCurrentBlock = block;
 	fMemoryView->SetTargetAddress(fCurrentBlock, fCurrentAddress);
+	_UpdateWritableIndicator();
+}
+
+
+void
+InspectorWindow::_UpdateWritableIndicator()
+{
+	fWritableBlockIndicator->SetText(_GetCurrentWritableIndicator());
+}
+
+
+const char*
+InspectorWindow::_GetCurrentWritableIndicator() const
+{
+	static char buffer[32];
+	snprintf(buffer, sizeof(buffer), "Writable: %s", fCurrentBlock == NULL
+			? "N/A" : fCurrentBlock->IsWritable() ? "Yes" : "No");
+
+	return buffer;
 }

src/apps/debugger/user_interface/gui/inspector_window/InspectorWindow.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2014, Rene Gollent, [email protected]. All rights reserved.
+ * Copyright 2011-2015, Rene Gollent, [email protected]. All rights reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef INSPECTOR_WINDOW_H
@@ -18,6 +18,7 @@
 class BButton;
 class BMenuField;
 class BMessenger;
+class BStringView;
 class BTextControl;
 class GuiTeamUiSettings;
 class SourceLanguage;
@@ -75,12 +76,16 @@ private:
 	void						_SetToAddress(target_addr_t address);
 	void						_SetCurrentBlock(TeamMemoryBlock* block);
 
+	void						_UpdateWritableIndicator();
+	const char*					_GetCurrentWritableIndicator() const;
+
 private:
 	UserInterfaceListener*		fListener;
 	BTextControl*				fAddressInput;
 	BMenuField*					fHexMode;
 	BMenuField*					fEndianMode;
 	BMenuField*					fTextMode;
+	BStringView*				fWritableBlockIndicator;
 	MemoryView*					fMemoryView;
 	BButton*					fPreviousBlockButton;
 	BButton*					fNextBlockButton;