Add a few more tests for font and text rendering.

bin/unit_tests/assets/fontrendering/tabs_test.txt

@@ -0,0 +1,21 @@
+
+		  {
+			  { "u8", "type" },			  { "u16", "type" },		{ "u32", "type" },
+			  { "u64", "type" },		  { "s8", "type" },			{ "s16", "type" },
+			  { "s32", "type" },		  { "s64", "type" },		{ "int", "type" },
+			  { "float", "type" },		  { "float32", "type" },	{ "float64", "type" },
+			  { "Any", "type" },		  { "array", "type" },		{ "bool", "type" },
+			  { "enum", "keyword" },	  { "null", "type" },		{ "pointer", "type" },
+			  { "procedure", "keyword" }, { "string", "type" },		{ "struct", "keyword" },
+			  { "void", "type" },		  { "complex", "type" },	{ "const", "keyword" },
+			  { "union", "keyword" },	  { "defer", "keyword" },	{ "do", "keyword" },
+			  { "for", "keyword" },		  { "macro", "keyword" },	{ "remove", "keyword" },
+			  { "bit_set", "keyword" },	  { "switch", "keyword" },	{ "if", "keyword" },
+			  { "case", "keyword" },	  { "foreign", "keyword" }, { "new", "keyword" },
+			  { "inline", "keyword" },	  { "import", "keyword" },	{ "false", "literal" },
+			  { "assert", "type" },		  { "return", "keyword" },	{ "true", "literal" },
+			  { "when", "keyword" },	  { "using", "keyword" },	{ "continue", "keyword" },
+			  { "in", "keyword" },		  { "break", "keyword" },	{ "else", "keyword" },
+			  { "while", "keyword" },	  { "count", "keyword" },	{ "delete", "keyword" },
+
+		  },

src/eepp/graphics/text.cpp

@@ -2162,6 +2162,7 @@ void Text::ensureGeometryUpdate() {
 						mLinesWidth.push_back( x );
 
 					x = 0;
+					prevChar = 0;
 					break;
 				case '\r':
 					break;

src/tests/unit_tests/fontrendering.cpp

@@ -14,6 +14,7 @@
 #include <eepp/ui/uicodeeditor.hpp>
 #include <eepp/ui/uiscenenode.hpp>
 #include <eepp/ui/uitextedit.hpp>
+#include <eepp/ui/uitextview.hpp>
 #include <eepp/window/engine.hpp>
 
 #include <iostream>
@@ -193,7 +194,7 @@ UTEST( FontRendering, editorTest ) {
 							WindowBackend::Default, 32, {}, 1, false, true ),
 			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
 		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
-		UICodeEditor* editor = UICodeEditor::New();
+		auto* editor = UICodeEditor::New();
 		editor->setPixelsSize( app.getUI()->getPixelsSize() );
 		editor->loadFromFile( "assets/textformat/english.utf8.lf.bom.txt" );
 		SceneManager::instance()->update();
@@ -218,7 +219,7 @@ UTEST( FontRendering, textEditTest ) {
 							WindowBackend::Default, 32, {}, 1, false, true ),
 			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
 		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
-		UITextEdit* editor = UITextEdit::New();
+		auto* editor = UITextEdit::New();
 		editor->setPixelsSize( app.getUI()->getPixelsSize() );
 		editor->loadFromFile( "assets/textformat/english.utf8.lf.bom.txt" );
 		SceneManager::instance()->update();
@@ -235,3 +236,134 @@ UTEST( FontRendering, textEditTest ) {
 		runTest();
 	}
 }
+
+UTEST( FontRendering, tabsTest ) {
+	const auto runTest = [&]() {
+		UIApplication app(
+			WindowSettings( 1024, 650, "eepp - Tabs Test", WindowStyle::Default,
+							WindowBackend::Default, 32, {}, 1, false, true ),
+			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
+		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
+		auto* editor = UICodeEditor::New();
+		editor->setPixelsSize( app.getUI()->getPixelsSize() );
+		editor->loadFromFile( "assets/fontrendering/tabs_test.txt" );
+		SceneManager::instance()->update();
+		SceneManager::instance()->draw();
+		compareImages( utest_state, utest_result, app.getWindow(),
+					   "eepp-editor-monospace-tabs-test" );
+	};
+
+	UTEST_PRINT_STEP( "Text Shaper disabled" );
+	runTest();
+
+	UTEST_PRINT_STEP( "Text Shaper enabled" );
+	{
+		BoolScopedOp op( Text::TextShaperEnabled, true );
+		runTest();
+	}
+}
+
+UTEST( FontRendering, tabStopTest ) {
+	const auto runTest = [&]() {
+		UIApplication app(
+			WindowSettings( 1024, 650, "eepp - Tab Stop Test", WindowStyle::Default,
+							WindowBackend::Default, 32, {}, 1, false, true ),
+			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
+		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
+		auto* editor = UICodeEditor::New();
+		editor->setTabStops( true );
+		editor->setPixelsSize( app.getUI()->getPixelsSize() );
+		editor->loadFromFile( "assets/fontrendering/tabs_test.txt" );
+		SceneManager::instance()->update();
+		SceneManager::instance()->draw();
+		compareImages( utest_state, utest_result, app.getWindow(),
+					   "eepp-editor-monospace-tab-stop-test" );
+	};
+
+	UTEST_PRINT_STEP( "Text Shaper disabled" );
+	runTest();
+
+	UTEST_PRINT_STEP( "Text Shaper enabled" );
+	{
+		BoolScopedOp op( Text::TextShaperEnabled, true );
+		runTest();
+	}
+}
+
+UTEST( FontRendering, tabsTextEditTest ) {
+	const auto runTest = [&]() {
+		UIApplication app(
+			WindowSettings( 1024, 650, "eepp - TextEdit - Tabs Test", WindowStyle::Default,
+							WindowBackend::Default, 32, {}, 1, false, true ),
+			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
+		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
+		auto* editor = UITextEdit::New();
+		editor->setPixelsSize( app.getUI()->getPixelsSize() );
+		editor->loadFromFile( "assets/fontrendering/tabs_test.txt" );
+		SceneManager::instance()->update();
+		SceneManager::instance()->draw();
+		compareImages( utest_state, utest_result, app.getWindow(), "eepp-text-edit-tabs-test" );
+	};
+
+	UTEST_PRINT_STEP( "Text Shaper disabled" );
+	runTest();
+
+	UTEST_PRINT_STEP( "Text Shaper enabled" );
+	{
+		BoolScopedOp op( Text::TextShaperEnabled, true );
+		runTest();
+	}
+}
+
+UTEST( FontRendering, tabStopTextEditTest ) {
+	const auto runTest = [&]() {
+		UIApplication app(
+			WindowSettings( 1024, 650, "eepp - TextEdit - Tab Stop Test", WindowStyle::Default,
+							WindowBackend::Default, 32, {}, 1, false, true ),
+			UIApplication::Settings( Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1 ) );
+		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
+		auto* editor = UITextEdit::New();
+		editor->setTabStops( true );
+		editor->setPixelsSize( app.getUI()->getPixelsSize() );
+		editor->loadFromFile( "assets/fontrendering/tabs_test.txt" );
+		SceneManager::instance()->update();
+		SceneManager::instance()->draw();
+		compareImages( utest_state, utest_result, app.getWindow(), "eepp-text-edit-tab-stop-test" );
+	};
+
+	UTEST_PRINT_STEP( "Text Shaper disabled" );
+	runTest();
+
+	UTEST_PRINT_STEP( "Text Shaper enabled" );
+	{
+		BoolScopedOp op( Text::TextShaperEnabled, true );
+		runTest();
+	}
+}
+
+UTEST( FontRendering, textViewTest ) {
+	const auto runTest = [&]() {
+		UIApplication app( WindowSettings( 1024, 650, "eepp - TextView", WindowStyle::Default,
+										   WindowBackend::Default, 32, {}, 1, false, true ),
+						   UIApplication::Settings(
+							   Sys::getProcessPath() + ".." + FileSystem::getOSSlash(), 1.5f ) );
+		FileSystem::changeWorkingDirectory( Sys::getProcessPath() );
+		auto* view = UITextView::New();
+		view->setPixelsSize( app.getUI()->getPixelsSize() );
+		std::string file;
+		FileSystem::fileGet( "assets/textformat/english.utf8.lf.bom.txt", file );
+		view->setText( file );
+		SceneManager::instance()->update();
+		SceneManager::instance()->draw();
+		compareImages( utest_state, utest_result, app.getWindow(), "eepp-textview" );
+	};
+
+	UTEST_PRINT_STEP( "Text Shaper disabled" );
+	runTest();
+
+	UTEST_PRINT_STEP( "Text Shaper enabled" );
+	{
+		BoolScopedOp op( Text::TextShaperEnabled, true );
+		runTest();
+	}
+}