Implemented a find panel. It's one application wide panel that will always

target the last activated window.
Not yet complete - work in progress.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6797 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/diskprobe/DiskProbe.cpp

@@ -10,6 +10,7 @@
 #include "FileWindow.h"
 #include "AttributeWindow.h"
 #include "OpenWindow.h"
+#include "FindWindow.h"
 
 #include <Application.h>
 #include <Screen.h>
@@ -76,8 +77,10 @@ class DiskProbe : public BApplication {
 		Settings	fSettings;
 		BFilePanel	*fFilePanel;
 		BWindow		*fOpenWindow;
+		FindWindow	*fFindWindow;
 		uint32		fWindowCount;
 		BRect		fWindowFrame;
+		BMessenger	fFindTarget;
 };
 
 
@@ -192,6 +195,7 @@ Settings::UpdateFrom(BMessage *message)
 DiskProbe::DiskProbe()
 	: BApplication(kSignature),
 	fOpenWindow(NULL),
+	fFindWindow(NULL),
 	fWindowCount(0)
 {
 	fFilePanel = new BFilePanel();
@@ -360,6 +364,36 @@ DiskProbe::MessageReceived(BMessage *message)
 			fSettings.UpdateFrom(message);
 			break;
 
+		case kMsgFindWindowClosed:
+			fFindWindow = NULL;
+			break;
+		case kMsgFindTarget:
+		{
+			BMessenger target;
+			if (message->FindMessenger("target", &target) != B_OK)
+				break;
+
+			if (fFindWindow != NULL && fFindWindow->Lock()) {
+				fFindWindow->SetTarget(target);
+				fFindWindow->Unlock();
+			}
+			break;
+		}
+		case kMsgOpenFindWindow:
+		{
+			BMessenger target;
+			if (message->FindMessenger("target", &target) != B_OK)
+				break;
+
+			if (fFindWindow == NULL) {
+				// open it!
+				fFindWindow = new FindWindow(fWindowFrame.OffsetByCopy(80, 80), target);
+				fFindWindow->Show();
+			} else
+				fFindWindow->Activate();
+			break;
+		}
+
 		case kMsgOpenFilePanel:
 			fFilePanel->Show();
 			break;

src/apps/diskprobe/DiskProbe.h

@@ -17,4 +17,9 @@ static const uint32 kMsgOpenWindowClosed = 'clOw';
 static const uint32 kMsgWindowClosed = 'WiCl';
 static const uint32 kMsgSettingsChanged = 'SeCh';
 
+static const uint32 kMsgOpenFindWindow = 'OpFw';
+static const uint32 kMsgFindWindowClosed = 'clFw';
+static const uint32 kMsgFindTarget = 'FTgt';
+static const uint32 kMsgFind = 'find';
+
 #endif	/* DISK_PROBE_H */

src/apps/diskprobe/FindWindow.cpp

@@ -0,0 +1,335 @@
+/* 
+** Copyright 2004, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include "FindWindow.h"
+#include "DiskProbe.h"
+
+#include <Application.h>
+#include <TextView.h>
+#include <MenuField.h>
+#include <PopUpMenu.h>
+#include <MenuItem.h>
+#include <Button.h>
+#include <ScrollView.h>
+#include <CheckBox.h>
+#include <Beep.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+
+enum find_mode {
+	kAsciiMode,
+	kHexMode
+};
+
+static const uint32 kMsgFindMode = 'FMde';
+static const uint32 kMsgStartFind = 'SFnd';
+
+
+class FindTextView : public BTextView {
+	public:
+		FindTextView(BRect frame, const char *name, BRect textRect, uint32 resizeMask);
+
+		virtual void MakeFocus(bool state);
+		virtual void TargetedByScrollView(BScrollView *view);
+
+		status_t SetMode(find_mode mode);
+		void GetData(BMessage &message);
+
+		virtual void KeyDown(const char *bytes, int32 numBytes);
+
+	protected:
+		virtual	void InsertText(const char *text, int32 length, 
+						int32 offset, const text_run_array *runs);
+
+	private:
+		BScrollView	*fScrollView;
+		find_mode	fMode;
+};
+
+
+//---------------
+
+
+FindTextView::FindTextView(BRect frame, const char *name, BRect textRect,
+	uint32 resizeMask)
+	: BTextView(frame, name, textRect, resizeMask),
+	fScrollView(NULL),
+	fMode(kAsciiMode)
+{
+}
+
+
+void
+FindTextView::MakeFocus(bool state)
+{
+	BTextView::MakeFocus(state);
+
+	if (fScrollView != NULL)
+		fScrollView->SetBorderHighlighted(state);
+}
+
+
+void 
+FindTextView::TargetedByScrollView(BScrollView *view)
+{
+	BTextView::TargetedByScrollView(view);
+	fScrollView = view;
+}
+
+
+void 
+FindTextView::KeyDown(const char *bytes, int32 numBytes)
+{
+	if (fMode == kHexMode) {
+		// filter out invalid characters
+		if (numBytes > 1)
+			return;
+		
+		if (bytes[0] == B_DELETE || bytes[0] == B_BACKSPACE) {
+			// ToDo
+			return;
+		}
+
+		if (!strchr("0123456789abcdefABCDEF", bytes[0]))
+			return;
+
+		// the original KeyDown() has severe cursor setting
+		// problems with our InsertText().
+
+		int32 start, end;
+		GetSelection(&start, &end);
+		InsertText(bytes, 1, start, NULL);
+		Invalidate();
+		return;
+	}
+	BTextView::KeyDown(bytes, numBytes);
+}
+
+
+void
+FindTextView::InsertText(const char *text, int32 length, int32 offset,
+	const text_run_array *runs)
+{
+	if (fMode == kHexMode) {
+		if (offset > TextLength())
+			offset = TextLength();
+
+		BTextView::InsertText(text, length, offset, runs);
+			// lets add anything, and then start to filter out
+			// (since we have to reformat the whole text)
+
+		const char *text = Text();
+		int32 textLength = TextLength();
+		char *insert = (char *)malloc(textLength * 2);
+		if (insert == NULL)
+			return;
+
+		int32 cursor = TextLength();
+		int32 out = 0;
+		for (int32 i = 0; i < textLength; i++) {
+			char c = text[i];
+			if (c >= 'A' && c <= 'F')
+				c += 'A' - 'a';
+			if ((c >= 'a' && c <= 'f') || (c >= '0' && c <= '9'))
+				insert[out++] = c;
+
+			if (i == offset && length == 1) {
+				// this is the end of the inserted text
+				cursor = out;
+			}
+
+			if ((out % 3) == 2)
+				insert[out++] = ' ';
+		}
+		insert[out] = '\0';
+
+		DeleteText(0, textLength);
+		BTextView::InsertText(insert, out, 0, NULL);
+
+		int32 start, end;
+		GetSelection(&start, &end);
+		if (start == offset)
+			Select(cursor, cursor);
+
+		free(insert);
+	} else
+		BTextView::InsertText(text, length, offset, runs);
+}
+
+
+status_t
+FindTextView::SetMode(find_mode mode)
+{
+	if (fMode == mode)
+		return B_OK;
+
+	if (mode == kHexMode) {
+		// convert text to hex mode
+
+		int32 length = TextLength();
+		char *hex = (char *)malloc(length * 3 + 1);
+		if (hex == NULL)
+			return B_NO_MEMORY;
+
+		fMode = mode;
+
+		const char *text = Text();
+		char *out = hex;
+		for (int32 i = 0; i < length; i++) {
+			out += sprintf(out, "%02x", *(unsigned char *)(text + i));
+		}
+		out[0] = '\0';
+		SetText(hex);
+		free(hex);
+	} else {
+		// ToDo: convert to ascii
+		return B_ERROR;
+	}
+
+	return B_OK;	
+}
+
+
+void
+FindTextView::GetData(BMessage &message)
+{
+	if (fMode == kHexMode) {
+		// ToDo: ...
+	} else 
+		message.AddData("data", B_RAW_TYPE, Text(), TextLength());
+}
+
+
+//	#pragma mark -
+
+
+FindWindow::FindWindow(BRect rect, BMessenger &target)
+	: BWindow(rect, "Find", B_TITLED_WINDOW, B_ASYNCHRONOUS_CONTROLS),
+	fTarget(target)
+{
+	BView *view = new BView(Bounds(), "main", B_FOLLOW_ALL, 0);
+	view->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
+	AddChild(view);
+
+	// add the top widgets
+
+	fMenu = new BPopUpMenu("mode");
+	BMessage *message;
+	BMenuItem *item;
+	fMenu->AddItem(item = new BMenuItem("String", message = new BMessage(kMsgFindMode)));
+	item->SetMarked(true);
+	message->AddInt8("mode", kAsciiMode);
+	fMenu->AddItem(item = new BMenuItem("Hexadecimal", message = new BMessage(kMsgFindMode)));
+	message->AddInt8("mode", kHexMode);
+
+	BRect rect = Bounds().InsetByCopy(5, 5);
+	BMenuField *menuField = new BMenuField(rect, B_EMPTY_STRING,
+						"Mode:", fMenu, B_FOLLOW_LEFT | B_FOLLOW_TOP);
+	menuField->SetDivider(menuField->StringWidth(menuField->Label()) + 8);
+	menuField->ResizeToPreferred();
+	view->AddChild(menuField);
+
+	// add the bottom widgets
+
+	BButton *button = new BButton(rect, B_EMPTY_STRING, "Find", new BMessage(kMsgStartFind),
+								B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM);
+	button->MakeDefault(true);
+	button->ResizeToPreferred();
+	button->MoveTo(rect.right - button->Bounds().Width(),
+				rect.bottom - button->Bounds().Height());
+	view->AddChild(button);
+
+	fCaseCheckBox = new BCheckBox(rect, B_EMPTY_STRING, "Case sensitive",
+							NULL, B_FOLLOW_LEFT | B_FOLLOW_BOTTOM);
+	fCaseCheckBox->ResizeToPreferred();
+	fCaseCheckBox->MoveTo(5, button->Frame().top - 5 - fCaseCheckBox->Bounds().Height());
+	view->AddChild(fCaseCheckBox);
+
+	// and now those inbetween
+
+	rect.top = menuField->Frame().bottom + 5;
+	rect.bottom = fCaseCheckBox->Frame().top - 5;
+	rect.InsetBy(2, 2);
+	fTextView = new FindTextView(rect, B_EMPTY_STRING,
+						rect.OffsetToCopy(B_ORIGIN).InsetByCopy(3, 3),
+						B_FOLLOW_ALL);
+	fTextView->SetWordWrap(true);
+
+	BScrollView *scrollView = new BScrollView("scroller", fTextView, B_FOLLOW_ALL, B_WILL_DRAW, false, false);
+	view->AddChild(scrollView);
+
+	ResizeTo(290, button->Frame().Height() * 4 + 30);
+}
+
+
+FindWindow::~FindWindow()
+{
+}
+
+
+void 
+FindWindow::WindowActivated(bool active)
+{
+	fTextView->MakeFocus(active);
+}
+
+
+void 
+FindWindow::MessageReceived(BMessage *message)
+{
+	switch (message->what) {
+		case kMsgFindMode:
+		{
+			int8 mode;
+			if (message->FindInt8("mode", &mode) != B_OK)
+				break;
+
+			if (fTextView->SetMode((find_mode)mode) == B_OK) {
+				// the "case sensitive" check box is only for ASCII mode
+				fCaseCheckBox->SetEnabled(mode == kAsciiMode);
+			} else {
+				// activate other item
+				fMenu->ItemAt(mode == kAsciiMode ? 1 : 0)->SetMarked(true);
+				beep();
+			}
+			fTextView->MakeFocus(true);
+			break;
+		}
+
+		case kMsgStartFind:
+		{
+			BMessage find(kMsgFind);
+			fTextView->GetData(find);
+			find.AddBool("case_sensitive", fCaseCheckBox->Value() != 0);
+			fTarget.SendMessage(&find);
+
+			PostMessage(B_QUIT_REQUESTED);
+			break;
+		}
+		
+		default:
+			BWindow::MessageReceived(message);
+	}
+}
+
+
+bool 
+FindWindow::QuitRequested()
+{
+	be_app_messenger.SendMessage(kMsgFindWindowClosed);
+	return true;
+}
+
+
+void 
+FindWindow::SetTarget(BMessenger &target)
+{
+	fTarget = target;
+}
+

src/apps/diskprobe/FindWindow.h

@@ -0,0 +1,34 @@
+/* 
+** Copyright 2004, Axel Dörfler, [email protected]. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+#ifndef FIND_WINDOW_H
+#define FIND_WINDOW_H
+
+
+#include <Window.h>
+#include <Messenger.h>
+
+class FindTextView;
+class BCheckBox;
+
+
+class FindWindow : public BWindow {
+	public:
+		FindWindow(BRect rect, BMessenger &target);
+		virtual ~FindWindow();
+
+		virtual void WindowActivated(bool active);
+		virtual void MessageReceived(BMessage *message);
+		virtual bool QuitRequested();
+
+		void SetTarget(BMessenger &target);
+
+	private:
+		BMessenger		fTarget;
+		FindTextView	*fTextView;
+		BCheckBox		*fCaseCheckBox;
+		BMenu			*fMenu;
+};
+
+#endif	/* FIND_WINDOW_H */

src/apps/diskprobe/Jamfile

@@ -14,6 +14,7 @@ App DiskProbe :
 	AttributeEditors.cpp
 	ProbeView.cpp
 	OpenWindow.cpp
+	FindWindow.cpp
 	;
 
 LinkSharedOSLibs DiskProbe : be tracker translation ;

src/apps/diskprobe/ProbeView.cpp

@@ -55,8 +55,6 @@ static const uint32 kMsgAddBookmark = 'bmrk';
 static const uint32 kMsgPrint = 'prnt';
 static const uint32 kMsgPageSetup = 'pgsp';
 
-static const uint32 kMsgFind = 'find';
-static const uint32 kMsgFindWindow = 'fndw';
 static const uint32 kMsgStopFind = 'sfnd';
 
 
@@ -970,7 +968,7 @@ EditorLooper::Find(off_t startAt, const uint8 *data, size_t dataSize, BMessenger
 			// If the user had to wait more than 8 seconds for the result,
 			// we are trying to please him with a requester...
 			(new BAlert("DiskProbe request",
-				"Could not find pattern", "Ok", NULL, NULL,
+				"Could not find search string.", "Ok", NULL, NULL,
 				B_WIDTH_AS_USUAL, B_WARNING_ALERT))->Go(NULL);
 		} else
 			beep();
@@ -1194,7 +1192,8 @@ ProbeView::AttachedToWindow()
 	menu->AddItem(item = new BMenuItem("Select All", new BMessage(B_SELECT_ALL), 'A', B_COMMAND_KEY));
 	item->SetTarget(fDataView);
 	menu->AddSeparatorItem();
-	menu->AddItem(item = new BMenuItem("Find" B_UTF8_ELLIPSIS, new BMessage(kMsgFindWindow), 'F', B_COMMAND_KEY));
+	menu->AddItem(item = new BMenuItem("Find" B_UTF8_ELLIPSIS, new BMessage(kMsgOpenFindWindow),
+								'F', B_COMMAND_KEY));
 	item->SetTarget(this);
 	menu->AddItem(fFindAgainMenuItem = new BMenuItem("Find Again", new BMessage(kMsgFind),
 		'G', B_COMMAND_KEY));
@@ -1335,8 +1334,15 @@ ProbeView::AllAttached()
 void
 ProbeView::WindowActivated(bool active)
 {
-	if (active)
-		fDataView->MakeFocus(true);
+	if (!active)
+		return;
+
+	fDataView->MakeFocus(true);
+
+	// set this view as the current find panel's target
+	BMessage target(kMsgFindTarget);
+	target.AddMessenger("target", this);
+	be_app_messenger.SendMessage(&target);
 }
 
 
@@ -1662,14 +1668,15 @@ ProbeView::MessageReceived(BMessage *message)
 			PageSetup();
 			break;
 
-		case kMsgFindWindow:
+		case kMsgOpenFindWindow:
 		{
 			fEditorLooper->QuitFind();
 
-			// ToDo: open find window
-			message->AddData("data", B_RAW_TYPE, "test", 4);
-			message->what = kMsgFind;
-			//break;
+			// set this view as the current find panel's target
+			BMessage find(kMsgOpenFindWindow);
+			find.AddMessenger("target", this);
+			be_app_messenger.SendMessage(&find);
+			break;
 		}
 
 		case kMsgFind: