HaikuDepot: New TextDocumentView and test app.

* TextDocumentView still only shows the first paragraph
   of a TextDocument, but this time using the new
   ParagraphLayout. A class for layouting all paragraphs
   of a TextDocument is up next.
 * A simple test app shows that TextSpans with different
   CharacterStyles already work in one Paragraph. The test
   is nowhere extensive and does not test for bugs in
   corner cases.

src/apps/haiku-depot/Jamfile

@@ -12,6 +12,21 @@ for sourceDir in $(sourceDirs) {
 	SEARCH_SOURCE += [ FDirName $(HAIKU_TOP) src apps haiku-depot $(sourceDir) ] ;
 }
 
+local textDocumentSources =
+	CharacterStyle.cpp
+	CharacterStyleData.cpp
+	Paragraph.cpp
+	ParagraphLayout.cpp
+	ParagraphStyle.cpp
+	ParagraphStyleData.cpp
+	TextDocument.cpp
+	TextDocumentView.cpp
+	TextLayout.cpp
+	TextSpan.cpp
+	TextStyle.cpp
+	TextView.cpp
+;
+
 Application HaikuDepot :
 	App.cpp
 	BitmapButton.cpp
@@ -27,17 +42,7 @@ Application HaikuDepot :
 	support.cpp
 
 	# textview stuff
-	CharacterStyle.cpp
-	CharacterStyleData.cpp
-	Paragraph.cpp
-	ParagraphLayout.cpp
-	ParagraphStyle.cpp
-	ParagraphStyleData.cpp
-	TextDocument.cpp
-	TextLayout.cpp
-	TextSpan.cpp
-	TextStyle.cpp
-	TextView.cpp
+	$(textDocumentSources)
 	
 	: be translation libcolumnlistview.a libshared.a $(TARGET_LIBSUPC++)
 		$(HAIKU_LOCALE_LIBS)
@@ -55,3 +60,10 @@ DoCatalogs HaikuDepot :
 	PackageListView.cpp
 	PackageManager.cpp
 ;
+
+Application TextDocumentTest :
+	TextDocumentTest.cpp
+	$(textDocumentSources)
+
+	: be translation libshared.a $(TARGET_LIBSUPC++)
+;

src/apps/haiku-depot/textview/TextDocumentTest.cpp

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2013, Stephan Aßmus <[email protected]>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+
+#include "TextDocumentTest.h"
+
+#include <stdio.h>
+
+#include <LayoutBuilder.h>
+#include <Window.h>
+
+#include "TextDocumentView.h"
+
+TextDocumentTest::TextDocumentTest()
+	:
+	BApplication("application/x-vnd.Haiku-TextDocumentTest")
+{
+}
+
+
+TextDocumentTest::~TextDocumentTest()
+{
+}
+
+
+void
+TextDocumentTest::ReadyToRun()
+{
+	BRect frame(50.0, 50.0, 749.0, 549.0);
+
+	BWindow* window = new BWindow(frame, "Text document test",
+		B_TITLED_WINDOW, B_QUIT_ON_WINDOW_CLOSE | B_AUTO_UPDATE_SIZE_LIMITS);
+
+	TextDocumentView* documentView = new TextDocumentView("text document view");
+
+	BLayoutBuilder::Group<>(window, B_VERTICAL)
+		.Add(documentView)
+	;
+
+	ParagraphStyle paragraphStyle;
+	
+	CharacterStyle regularStyle;
+	
+	CharacterStyle boldStyle(regularStyle);
+	boldStyle.SetFont(BFont(be_bold_font));
+	
+	CharacterStyle bigStyle(regularStyle);
+	bigStyle.SetFontSize(24);
+	bigStyle.SetForegroundColor(255, 50, 50);
+
+	Paragraph paragraph(paragraphStyle);
+	paragraph.Append(TextSpan("This is a ", regularStyle));
+	paragraph.Append(TextSpan("test", bigStyle));
+	paragraph.Append(TextSpan(" to see if ", regularStyle));
+	paragraph.Append(TextSpan("different", boldStyle));
+	paragraph.Append(TextSpan(" character styles already work.", regularStyle));
+
+	TextDocumentRef document(new TextDocument(), true);
+	document->Append(paragraph);
+
+	documentView->SetTextDocument(document);
+
+	window->Show();
+}
+
+
+int
+main(int argc, char* argv[])
+{
+	TextDocumentTest().Run();
+	return 0;
+}
+
+

src/apps/haiku-depot/textview/TextDocumentTest.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2013, Stephan Aßmus <[email protected]>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+#ifndef TEXT_DOCUMENT_TEST_H
+#define TEXT_DOCUMENT_TEST_H
+
+
+#include <Application.h>
+
+
+class TextDocumentTest : public BApplication {
+public:
+								TextDocumentTest();
+	virtual						~TextDocumentTest();
+
+	virtual	void				ReadyToRun();
+};
+
+
+#endif // TEXT_DOCUMENT_TEST_H

src/apps/haiku-depot/textview/TextDocumentView.cpp

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2013, Stephan Aßmus <[email protected]>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+
+#include "TextDocumentView.h"
+
+
+TextDocumentView::TextDocumentView(const char* name)
+	:
+	BView(name, B_WILL_DRAW | B_FULL_UPDATE_ON_RESIZE | B_FRAME_EVENTS)
+{
+	fParagraphLayout.SetWidth(Bounds().Width());
+
+	SetViewColor(B_TRANSPARENT_COLOR);
+//	SetLowColor(ui_color(B_PANEL_BACKGROUND_COLOR));
+	SetLowColor(255, 255, 255, 255);
+}
+
+
+TextDocumentView::~TextDocumentView()
+{
+}
+
+
+void
+TextDocumentView::Draw(BRect updateRect)
+{
+	FillRect(updateRect, B_SOLID_LOW);
+
+	fParagraphLayout.SetWidth(Bounds().Width());
+	fParagraphLayout.Draw(this, B_ORIGIN);
+}
+
+
+void
+TextDocumentView::AttachedToWindow()
+{
+	BView* parent = Parent();
+	if (parent != NULL)
+		SetLowColor(parent->ViewColor());
+}
+
+
+void
+TextDocumentView::FrameResized(float width, float height)
+{
+	fParagraphLayout.SetWidth(width);
+}
+
+
+BSize
+TextDocumentView::MinSize()
+{
+	return BSize(50.0f, 0.0f);
+}
+
+
+BSize
+TextDocumentView::MaxSize()
+{
+	return BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED);
+}
+
+
+BSize
+TextDocumentView::PreferredSize()
+{
+	return BSize(B_SIZE_UNLIMITED, B_SIZE_UNLIMITED);
+}
+
+
+bool
+TextDocumentView::HasHeightForWidth()
+{
+	return true;
+}
+
+
+void
+TextDocumentView::GetHeightForWidth(float width, float* min, float* max,
+	float* preferred)
+{
+	ParagraphLayout layout(fParagraphLayout);
+	layout.SetWidth(width);
+
+	float height = layout.Height() + 1;
+
+	if (min != NULL)
+		*min = height;
+	if (max != NULL)
+		*max = height;
+	if (preferred != NULL)
+		*preferred = height;
+}
+
+
+void
+TextDocumentView::SetTextDocument(const TextDocumentRef& document)
+{
+	fTextDocument = document;
+	fParagraphLayout.SetParagraph(fTextDocument->ParagraphAt(0));
+	InvalidateLayout();
+}
+

src/apps/haiku-depot/textview/TextDocumentView.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2013, Stephan Aßmus <[email protected]>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+#ifndef TEXT_DOCUMENT_VIEW_H
+#define TEXT_DOCUMENT_VIEW_H
+
+#include <String.h>
+#include <View.h>
+
+#include "ParagraphLayout.h"
+#include "TextDocument.h"
+
+
+class TextDocumentView : public BView {
+public:
+								TextDocumentView(const char* name = NULL);
+	virtual						~TextDocumentView();
+
+	virtual void				Draw(BRect updateRect);
+
+	virtual void				AttachedToWindow();
+	virtual void				FrameResized(float width, float height);
+
+	virtual	BSize				MinSize();
+	virtual	BSize				MaxSize();
+	virtual	BSize				PreferredSize();
+
+	virtual	bool				HasHeightForWidth();
+	virtual	void				GetHeightForWidth(float width, float* min,
+									float* max, float* preferred);
+
+			void				SetTextDocument(
+									const TextDocumentRef& document);
+
+private:
+			TextDocumentRef		fTextDocument;
+			ParagraphLayout		fParagraphLayout;
+};
+
+#endif // TEXT_DOCUMENT_VIEW_H