GUI Enhancement: Tabbar part 2

- use one tab icon size
- close button crop in RTL
- improve text positions
- font size adjustment

ref: https://github.com/notepad-plus-plus/notepad-plus-plus/pull/13702#issuecomment-1564296333

Fix #10349, fix #8109, close #13709

PowerEditor/src/DarkMode/DarkMode.cpp

@@ -271,7 +271,7 @@ bool IsWindows11() // or later OS version
 	return (g_buildNumber >= 22000);
 }
 
-const DWORD GetWindowsBuildNumber()
+DWORD GetWindowsBuildNumber()
 {
 	return g_buildNumber;
 }

PowerEditor/src/DarkMode/DarkMode.h

@@ -17,4 +17,4 @@ void InitDarkMode();
 void SetDarkMode(bool useDarkMode, bool fixDarkScrollbar);
 bool IsWindows10();
 bool IsWindows11();
-const DWORD GetWindowsBuildNumber();
+DWORD GetWindowsBuildNumber();

PowerEditor/src/Notepad_plus.cpp

@@ -227,7 +227,7 @@ LRESULT Notepad_plus::init(HWND hwnd)
 	int tabBarStatus = nppGUI._tabStatus;
 
 	_toReduceTabBar = ((tabBarStatus & TAB_REDUCE) != 0);
-	int iconDpiDynamicalSize = nppParam._dpiManager.scaleY(_toReduceTabBar ? g_TabIconSize : g_TabIconSizeLarge);
+	int iconDpiDynamicalSize = nppParam._dpiManager.scaleX(g_TabIconSize);
 	_docTabIconList.create(iconDpiDynamicalSize, _pPublicInterface->getHinst(), docTabIconIDs, sizeof(docTabIconIDs) / sizeof(int));
 	_docTabIconListAlt.create(iconDpiDynamicalSize, _pPublicInterface->getHinst(), docTabIconIDs_alt, sizeof(docTabIconIDs_alt) / sizeof(int));
 	_docTabIconListDarkMode.create(iconDpiDynamicalSize, _pPublicInterface->getHinst(), docTabIconIDs_darkMode, sizeof(docTabIconIDs_darkMode) / sizeof(int));

PowerEditor/src/NppCommands.cpp

@@ -2143,17 +2143,11 @@ void Notepad_plus::command(int id)
 			_toReduceTabBar = !_toReduceTabBar;
 			auto& dpiManager = NppParameters::getInstance()._dpiManager;
 
-			//Resize the  icon
-			int iconDpiDynamicalSize = dpiManager.scaleY(_toReduceTabBar ? g_TabIconSize : g_TabIconSizeLarge);
-
 			//Resize the tab height
 			int tabDpiDynamicalWidth = dpiManager.scaleX(g_TabWidth);
 			int tabDpiDynamicalHeight = dpiManager.scaleY(_toReduceTabBar ? g_TabHeight : g_TabHeightLarge);
 			TabCtrl_SetItemSize(_mainDocTab.getHSelf(), tabDpiDynamicalWidth, tabDpiDynamicalHeight);
 			TabCtrl_SetItemSize(_subDocTab.getHSelf(), tabDpiDynamicalWidth, tabDpiDynamicalHeight);
-			_docTabIconList.addIcons(iconDpiDynamicalSize);
-			_docTabIconListAlt.addIcons(iconDpiDynamicalSize);
-			_docTabIconListDarkMode.addIcons(iconDpiDynamicalSize);
 
 			//change the font
 			const auto& hf = _mainDocTab.getFont(_toReduceTabBar);

PowerEditor/src/NppDarkMode.cpp

@@ -553,7 +553,7 @@ namespace NppDarkMode
 		return IsWindows11();
 	}
 
-	const DWORD getWindowsBuildNumber()
+	DWORD getWindowsBuildNumber()
 	{
 		return GetWindowsBuildNumber();
 	}

PowerEditor/src/NppDarkMode.h

@@ -119,7 +119,7 @@ namespace NppDarkMode
 
 	bool isWindows10();
 	bool isWindows11();
-	const DWORD getWindowsBuildNumber();
+	DWORD getWindowsBuildNumber();
 
 	COLORREF invertLightness(COLORREF c);
 	COLORREF invertLightnessSofter(COLORREF c);

PowerEditor/src/WinControls/ImageListSet/ImageListSet.cpp

@@ -68,14 +68,6 @@ bool IconList::changeIcon(size_t index, const TCHAR *iconLocation) const
 	return (i == index);
 }
 
-// used by tabbar only
-void IconList::addIcons(int size) const
-{
-	ImageList_SetIconSize(_hImglst, size, size);
-	for (int i = 0 ; i < _iconIDArraySize ; ++i)
-		addIcon(_pIconIDArray[i]);
-}
-
 void ToolBarIcons::init(ToolBarButtonUnit *buttonUnitArray, int arraySize, std::vector<DynamicCmdIcoBmp> moreCmds)
 {
 	for (int i = 0 ; i < arraySize ; ++i)

PowerEditor/src/WinControls/ImageListSet/ImageListSet.h

@@ -43,8 +43,6 @@ public :
 	void addIcon(HICON hIcon) const;
 
 	bool changeIcon(size_t index, const TCHAR *iconLocation) const;
-	void addIcons(int size) const;
-
 
 private :
 	HIMAGELIST _hImglst = nullptr;

PowerEditor/src/WinControls/TabBar/TabBar.cpp

@@ -343,7 +343,7 @@ void TabBarPlus::init(HINSTANCE hInst, HWND parent, bool isVertical, bool isMult
 	LOGFONT lfVer{ lf };
 	_hFont = ::CreateFontIndirect(&lf);
 	lf.lfWeight = FW_HEAVY;
-	lf.lfHeight = -dpiManager.pointsToPixels(12);
+	lf.lfHeight = -(dpiManager.pointsToPixels(10));
 	_hLargeFont = ::CreateFontIndirect(&lf);
 
 	lfVer.lfEscapement = 900;
@@ -372,7 +372,7 @@ void TabBarPlus::doOwnerDrawTab()
 			::InvalidateRect(_hwndArray[i], NULL, TRUE);
 
 			const int paddingSizeDynamicW = NppParameters::getInstance()._dpiManager.scaleX(6);
-			const int paddingSizePlusClosebuttonDynamicW = NppParameters::getInstance()._dpiManager.scaleX(9);
+			const int paddingSizePlusClosebuttonDynamicW = NppParameters::getInstance()._dpiManager.scaleX(10);
 			::SendMessage(_hwndArray[i], TCM_SETPADDING, 0, MAKELPARAM(_drawTabCloseButton ? paddingSizePlusClosebuttonDynamicW : paddingSizeDynamicW, 0));
 		}
 	}
@@ -1148,11 +1148,11 @@ void TabBarPlus::drawItem(DRAWITEMSTRUCT *pDrawItemStruct, bool isDarkMode)
 	{
 		if (_isVertical)
 		{
-			rect.left -= isDarkMode ? paddingDynamicTwoX : 2;
+			rect.left -= paddingDynamicTwoX;
 		}
 		else
 		{
-			rect.top -= isDarkMode ? paddingDynamicTwoY : 2;
+			rect.top -= paddingDynamicTwoY;
 		}
 	}
 
@@ -1243,13 +1243,16 @@ void TabBarPlus::drawItem(DRAWITEMSTRUCT *pDrawItemStruct, bool isDarkMode)
 		BITMAP bmp{};
 		::GetObject(hBmp, sizeof(bmp), &bmp);
 
-		int bmDpiDynamicalWidth = dpiManager.scaleX(bmp.bmWidth);
+		_closeButtonZone._width = dpiManager.scaleX(bmp.bmWidth);
-		int bmDpiDynamicalHeight = dpiManager.scaleY(bmp.bmHeight);
+		_closeButtonZone._height = dpiManager.scaleY(bmp.bmHeight);
 
 		RECT buttonRect = _closeButtonZone.getButtonRectFrom(rect, _isVertical);
 		
+		// StretchBlt will crop image in RTL if there is no stretching, thus move image by -1 
+		const bool isRTL = (::GetWindowLongPtr(::GetParent(_hSelf), GWL_EXSTYLE) & WS_EX_LAYOUTRTL) == WS_EX_LAYOUTRTL;
+		const int offset = isRTL && (_closeButtonZone._width == bmp.bmWidth) ? -1 : 0;
 		::SelectObject(hdcMemory, hBmp);
-		::StretchBlt(hDC, buttonRect.left, buttonRect.top, bmDpiDynamicalWidth, bmDpiDynamicalHeight, hdcMemory, 0, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
+		::StretchBlt(hDC, buttonRect.left + offset, buttonRect.top, _closeButtonZone._width, _closeButtonZone._height, hdcMemory, offset, 0, bmp.bmWidth, bmp.bmHeight, SRCCOPY);
 		::DeleteDC(hdcMemory);
 		::DeleteObject(hBmp);
 	}
@@ -1344,22 +1347,17 @@ void TabBarPlus::drawItem(DRAWITEMSTRUCT *pDrawItemStruct, bool isDarkMode)
 	{
 		// center text vertically
 		Flags |= DT_LEFT;
-		Flags |= isStandardSize || (!hasMultipleLines && !isDarkMode) ? DT_VCENTER : DT_TOP;
+		Flags |= DT_TOP;
 
-		// ignoring the descent when centering (text elements below the base line) is more pleasing to the eye
+		const int paddingText = ((pDrawItemStruct->rcItem.bottom - pDrawItemStruct->rcItem.top) - (textHeight + textDescent)) / 2;
-		if (!isDarkMode && !isStandardSize)
+		const int paddingDescent = !hasMultipleLines ? ((textDescent + ((isDarkMode || !isSelected) ? 1 : 0)) / 2) : 0;
+		rect.top = pDrawItemStruct->rcItem.top + paddingText + paddingDescent;
+		rect.bottom = pDrawItemStruct->rcItem.bottom - paddingText + paddingDescent;
+
+		if (isDarkMode || !isSelected || _drawTopBar)
 		{
-			rect.top = pDrawItemStruct->rcItem.top;
+			rect.top += paddingDynamicTwoY;
-			if (hasMultipleLines && isSelected)
-			{
-				rect.top -= _drawTopBar ? 0 : paddingDynamicTwoY;
-			}
 		}
-		else
-		{
-			rect.top += textDescent / 2;
-		}
-		rect.bottom += textDescent / 2;
 
 		// 1 space distance to save icon
 		rect.left += spaceUnit;
@@ -1492,8 +1490,8 @@ void TabBarPlus::exchangeItemData(POINT point)
 CloseButtonZone::CloseButtonZone()
 {
 	// TODO: get width/height of close button dynamically
-	_width = NppParameters::getInstance()._dpiManager.scaleX(11);
+	_width = NppParameters::getInstance()._dpiManager.scaleX(g_TabCloseBtnSize);
-	_height = NppParameters::getInstance()._dpiManager.scaleY(11);
+	_height = _width;
 }
 
 bool CloseButtonZone::isHit(int x, int y, const RECT & tabRect, bool isVertical) const
@@ -1510,7 +1508,7 @@ RECT CloseButtonZone::getButtonRectFrom(const RECT & tabRect, bool isVertical) c
 {
 	RECT buttonRect{};
 
-	int fromBorder;
+	int fromBorder = 0;
 	if (isVertical)
 	{
 		fromBorder = (tabRect.right - tabRect.left - _width + 1) / 2;

PowerEditor/src/WinControls/TabBar/TabBar.h

@@ -46,12 +46,12 @@ const TCHAR TABBAR_ACTIVEUNFOCUSEDINDCATOR[64] = TEXT("Active tab unfocused indi
 const TCHAR TABBAR_ACTIVETEXT[64] = TEXT("Active tab text");
 const TCHAR TABBAR_INACTIVETEXT[64] = TEXT("Inactive tabs");
 
-constexpr int g_TabIconSize = 13;
+constexpr int g_TabIconSize = 16;
-constexpr int g_TabIconSizeLarge = 20;
 constexpr int g_TabHeight = 22;
 constexpr int g_TabHeightLarge = 25;
 constexpr int g_TabWidth = 45;
 constexpr int g_TabWidthCloseBtn = 60;
+constexpr int g_TabCloseBtnSize = 11;
 
 struct TBHDR
 {