[SCINTILLA_NEW_FEATURE] Add the capacity of keeping line highlighting even when it loss its focus.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository@142 f5eea248-9336-0410-98b8-ebc06183d4e3

scintilla/include/Scintilla.h

@@ -257,6 +257,8 @@ typedef sptr_t (*SciFnDirect)(sptr_t ptr, unsigned int iMessage, uptr_t wParam,
 #define SCI_GETMAXLINESTATE 2094
 #define SCI_GETCARETLINEVISIBLE 2095
 #define SCI_SETCARETLINEVISIBLE 2096
+#define SCI_GETCARETLINEVISIBLEALWAYS 3095
+#define SCI_SETCARETLINEVISIBLEALWAYS 3096
 #define SCI_GETCARETLINEBACK 2097
 #define SCI_SETCARETLINEBACK 2098
 #define SCI_STYLESETCHANGEABLE 2099

scintilla/src/Editor.cxx

@@ -2247,7 +2247,7 @@ void Editor::DrawLine(Surface *surface, ViewStyle &vsDraw, int line, int lineVis
 	// the color for the highest numbered one is used.
 	bool overrideBackground = false;
 	ColourAllocated background;
-	if (caret.active && vsDraw.showCaretLineBackground && (vsDraw.caretLineAlpha == SC_ALPHA_NOALPHA) && ll->containsCaret) {
+	if ((caret.active || vsDraw.showCaretLineBackgroundAlways) && vsDraw.showCaretLineBackground && (vsDraw.caretLineAlpha == SC_ALPHA_NOALPHA) && ll->containsCaret) {
 		overrideBackground = true;
 		background = vsDraw.caretLineBackground.allocated;
 	}
@@ -2630,7 +2630,7 @@ void Editor::DrawLine(Surface *surface, ViewStyle &vsDraw, int line, int lineVis
 	// Draw any translucent whole line states
 	rcSegment.left = xStart;
 	rcSegment.right = rcLine.right - 1;
-	if (caret.active && vsDraw.showCaretLineBackground && ll->containsCaret) {
+	if ((caret.active || vsDraw.showCaretLineBackgroundAlways) && vsDraw.showCaretLineBackground && ll->containsCaret) {
 		SimpleAlphaRectangle(surface, rcSegment, vsDraw.caretLineBackground.allocated, vsDraw.caretLineAlpha);
 	}
 	int marks = pdoc->GetMark(line);
@@ -3174,6 +3174,7 @@ long Editor::FormatRange(bool draw, RangeToFormat *pfr) {
 	vsPrint.whitespaceBackgroundSet = false;
 	vsPrint.whitespaceForegroundSet = false;
 	vsPrint.showCaretLineBackground = false;
+	vsPrint.showCaretLineBackgroundAlways = false;
 
 	// Set colours for printing according to users settings
 	for (size_t sty = 0;sty < vsPrint.stylesSize;sty++) {
@@ -6983,6 +6984,13 @@ sptr_t Editor::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 		vs.showCaretLineBackground = wParam != 0;
 		InvalidateStyleRedraw();
 		break;
+	case SCI_GETCARETLINEVISIBLEALWAYS:
+		return vs.showCaretLineBackgroundAlways;
+	case SCI_SETCARETLINEVISIBLEALWAYS:
+		vs.showCaretLineBackgroundAlways = wParam != 0;
+		InvalidateStyleRedraw();
+		break;
+
 	case SCI_GETCARETLINEBACK:
 		return vs.caretLineBackground.desired.AsLong();
 	case SCI_SETCARETLINEBACK:

scintilla/src/ViewStyle.cxx

@@ -118,6 +118,7 @@ ViewStyle::ViewStyle(const ViewStyle &source) {
 	selbarlight.desired = source.selbarlight.desired;
 	caretcolour.desired = source.caretcolour.desired;
 	showCaretLineBackground = source.showCaretLineBackground;
+	showCaretLineBackgroundAlways = source.showCaretLineBackgroundAlways;
 	caretLineBackground.desired = source.caretLineBackground.desired;
 	caretLineAlpha = source.caretLineAlpha;
 	edgecolour.desired = source.edgecolour.desired;
@@ -192,6 +193,7 @@ void ViewStyle::Init(size_t stylesSize_) {
 	styles[STYLE_LINENUMBER].back.desired = Platform::Chrome();
 	caretcolour.desired = ColourDesired(0, 0, 0);
 	showCaretLineBackground = false;
+	showCaretLineBackgroundAlways = false;
 	caretLineBackground.desired = ColourDesired(0xff, 0xff, 0);
 	caretLineAlpha = SC_ALPHA_NOALPHA;
 	edgecolour.desired = ColourDesired(0xc0, 0xc0, 0xc0);

scintilla/src/ViewStyle.h

@@ -94,6 +94,7 @@ public:
 	bool showMarkedLines;
 	ColourPair caretcolour;
 	bool showCaretLineBackground;
+	bool showCaretLineBackgroundAlways;
 	ColourPair caretLineBackground;
 	int caretLineAlpha;
 	ColourPair edgecolour;