* added a test for BTextView which exposes a couple of problems

with large contents


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29956 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/kits/interface/Jamfile

@@ -147,6 +147,11 @@ SimpleTest SetBorderScrollViewTest :
 	: be
 ;
 
+SimpleTest TextViewTest :
+	TextViewTest.cpp
+	: be
+	;
+
 SEARCH on [ FGristFiles
 		ScrollView.cpp CheckBox.cpp ChannelSlider.cpp ChannelControl.cpp Slider.cpp Control.cpp
 	] = [ FDirName $(HAIKU_TOP) src kits interface ] ;

src/tests/kits/interface/TextViewTest.cpp

@@ -0,0 +1,109 @@
+/*
+ * Copyright 2009, Oliver Tappe, zooey@hirschkaefer.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include <Application.h>
+#include <Window.h>
+#include <ScrollView.h>
+#include <String.h>
+#include <TextView.h>
+
+#include <stdio.h>
+
+
+class Window : public BWindow {
+	public:
+		Window();
+
+		virtual bool QuitRequested();
+};
+
+
+//	#pragma mark -
+
+
+Window::Window()
+	: BWindow(BRect(100, 100, 800, 500), "TextView-Test",
+			B_TITLED_WINDOW, B_ASYNCHRONOUS_CONTROLS)
+{
+	BRect rect = Bounds().InsetByCopy(20, 20);
+
+	BTextView* textView = new BTextView(rect, "text-o-mo", 
+		rect.OffsetToCopy(0, 0), B_FOLLOW_ALL);
+
+	BScrollView* scrollView = new BScrollView("scroll-o-mo", textView, 
+		B_FOLLOW_ALL_SIDES, 0, true, true);
+	AddChild(scrollView);
+	
+	printf("starting to prepare content ... [%Ld]\n", system_time());
+	
+	// generate a million lines of content
+	const int32 kLineCount = 1000000;
+	const int32 kLineNoSize = 6;
+	BString line
+		= ":	you should see a pretty large text in this textview	...\n";
+	BString format = BString("%*d") << line;
+	BString content;
+	int32 lineLength = line.Length() + kLineNoSize;
+	int32 contentLength = lineLength * kLineCount;
+	char* currLine = content.LockBuffer(contentLength);
+	if (currLine) {
+		int32 lineNo = 0;
+		char buf[10];
+		for ( ; lineNo < kLineCount; currLine += lineLength)
+			sprintf(currLine, format.String(), kLineNoSize, lineNo++);
+		content.UnlockBuffer(contentLength);
+	}
+	printf("setting content ... [%Ld]\n", system_time());
+	textView->SetText(content.String());
+	printf("done. [%Ld]\n", system_time());
+}
+
+
+bool
+Window::QuitRequested()
+{
+	be_app->PostMessage(B_QUIT_REQUESTED);
+	return true;
+}
+
+
+//	#pragma mark -
+
+
+class Application : public BApplication {
+	public:
+		Application();
+
+		virtual void ReadyToRun(void);
+};
+
+
+Application::Application()
+	: BApplication("application/x-vnd.haiku-test")
+{
+}
+
+
+void
+Application::ReadyToRun(void)
+{
+	BWindow *window = new Window();
+	window->Show();
+}
+
+
+//	#pragma mark -
+
+
+int 
+main(int argc, char **argv)
+{
+	Application app;
+
+	app.Run();
+	return 0;
+}
+