* Added support for LED status indicators.

* The look isn't perfect yet, but well; improvements welcome.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29706 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/preferences/keymap/Jamfile

@@ -2,7 +2,7 @@ SubDir HAIKU_TOP src preferences keymap ;
 
 SetSubDirSupportedPlatformsBeOSCompatible ;
 
-UsePrivateHeaders interface ;
+UsePrivateHeaders interface shared ;
 
 Preference Keymap :
 	KeyboardLayout.cpp

src/preferences/keymap/KeyboardLayout.cpp

@@ -11,8 +11,11 @@
 #include <vector>
 
 #include <File.h>
+#include <InterfaceDefs.h>
 
 
+#undef TRACE
+
 //#define TRACE_LAYOUT
 #ifdef TRACE_LAYOUT
 #	define TRACE(x...) printf(x)
@@ -25,7 +28,8 @@ KeyboardLayout::KeyboardLayout()
 	:
 	fKeys(NULL),
 	fKeyCount(0),
-	fKeyCapacity(0)
+	fKeyCapacity(0),
+	fIndicators(5, true)
 {
 	_SetDefault();
 }
@@ -61,10 +65,17 @@ KeyboardLayout::KeyAt(int32 index)
 }
 
 
-Key*
+int32
-KeyboardLayout::KeyAt(BPoint point)
+KeyboardLayout::CountIndicators()
 {
-	return NULL;
+	return fIndicators.CountItems();
+}
+
+
+Indicator*
+KeyboardLayout::IndicatorAt(int32 index)
+{
+	return fIndicators.ItemAt(index);
 }
 
 
@@ -136,7 +147,8 @@ KeyboardLayout::_SetDefault()
 		"$f = 10,20\n"
 		"$g = 13,10\n"
 		// Key rows
-		"[ 0,0; d:0x01; :-; :+4; $b:-; d:+4; $b:-; :+4; $b:-; d:+3 ]\n"
+		"[ 0,0; d:0x01; :-; :+4; $b:-; d:+4; $b:-; :+4; $b:-; d:+3; $b:-; "
+			"$g:led-num; $g:led-caps; $g:led-scroll ]\n"
 		"[ 0,20; :+13; d$c:+; $b:-; d:+3; $b:-; d:+4 ]\n"
 		"[ 0,30; d$d:0x26; :+12; $d:+1; $b:-; d:+3; $b:-; :+3; "
 			"d$f:+1 ]\n"
@@ -333,7 +345,34 @@ KeyboardLayout::_AddKeyCodes(const parse_state& state, BPoint& rowLeftTop,
 	int32 modifier = 0;
 
 	if (isalpha(data[0])) {
-		// TODO: get modifier (ie. "num")
+		bool led = false;
+		if (!strcmp("led-caps", data)) {
+			modifier = B_CAPS_LOCK;
+			led = true;
+		} else if (!strcmp("led-num", data)) {
+			modifier = B_NUM_LOCK;
+			led = true;
+		} else if (!strcmp("led-scroll", data)) {
+			modifier = B_SCROLL_LOCK;
+			led = true;
+		} else {
+			// TODO: get modifier (ie. "num")
+		}
+
+		if (led) {
+			key.frame.OffsetTo(rowLeftTop);
+			rowLeftTop.x = key.frame.right;
+			fBounds = key.frame | fBounds;
+
+			Indicator* indicator = new(std::nothrow) Indicator;
+			if (indicator != NULL) {
+				indicator->modifier = modifier;
+				indicator->frame = key.frame;
+
+				fIndicators.AddItem(indicator);
+			}
+			return true;
+		}
 	}
 
 	int32 first;

src/preferences/keymap/KeyboardLayout.h

@@ -8,6 +8,7 @@
 
 #include <map>
 
+#include <ObjectList.h>
 #include <Point.h>
 #include <Rect.h>
 #include <String.h>
@@ -29,6 +30,11 @@ struct Key {
 	bool		dark;
 };
 
+struct Indicator {
+	int32		modifier;
+	BRect		frame;
+};
+
 typedef std::map<BString, BString> VariableMap;
 
 class KeyboardLayout {
@@ -40,13 +46,17 @@ public:
 
 			int32			CountKeys();
 			Key*			KeyAt(int32 index);
-			Key*			KeyAt(BPoint point);
+
+			int32			CountIndicators();
+			Indicator*		IndicatorAt(int32 index);
 
 			BRect			Bounds();
 			BSize			DefaultKeySize();
 
 			status_t		Load(const char* path);
 
+			int32			IndexForModifier(int32 modifier);
+			
 private:
 	enum parse_mode {
 		kPairs,
@@ -97,6 +107,8 @@ private:
 			int32			fKeyCapacity;
 			BRect			fBounds;
 			BSize			fDefaultKeySize;
+			int32			fAlternateIndex[3];
+			BObjectList<Indicator> fIndicators;
 };
 
 #endif	// KEYBOARD_LAYOUT_H

src/preferences/keymap/KeyboardLayoutView.cpp

@@ -18,6 +18,7 @@ static const rgb_color kBrightColor = {230, 230, 230, 255};
 static const rgb_color kDarkColor = {200, 200, 200, 255};
 static const rgb_color kSecondDeadKeyColor = {240, 240, 150, 255};
 static const rgb_color kDeadKeyColor = {152, 203, 255, 255};
+static const rgb_color kLitIndicatorColor = {116, 212, 83, 255};
 
 
 KeyboardLayoutView::KeyboardLayoutView(const char* name)
@@ -88,6 +89,7 @@ KeyboardLayoutView::AttachedToWindow()
 
 	SetFont(*be_plain_font);
 	fSpecialFont = *be_fixed_font;
+	fModifiers = modifiers();
 
 	_LayoutKeyboard();
 }
@@ -227,12 +229,63 @@ KeyboardLayoutView::MouseMoved(BPoint point, uint32 transit,
 void
 KeyboardLayoutView::Draw(BRect updateRect)
 {
+	// Draw keys
+
 	for (int32 i = 0; i < fLayout->CountKeys(); i++) {
 		Key* key = fLayout->KeyAt(i);
 
 		_DrawKey(this, updateRect, key, _FrameFor(key),
 			_IsKeyPressed(key->code));
 	}
+
+	// Draw LED indicators
+
+	for (int32 i = 0; i < fLayout->CountIndicators(); i++) {
+		Indicator* indicator = fLayout->IndicatorAt(i);
+
+		BRect rect = _FrameFor(indicator->frame);
+		float rectTop = rect.top;
+		rect.top += 2 * rect.Height() / 3;
+
+		const char* label = NULL;
+		if (indicator->modifier == B_CAPS_LOCK)
+			label = "caps";
+		else if (indicator->modifier == B_NUM_LOCK)
+			label = "num";
+		else if (indicator->modifier == B_SCROLL_LOCK)
+			label = "scroll";
+		if (label != NULL) {
+			_SetFontSize(this, kIndicator);
+
+			font_height fontHeight;
+			GetFontHeight(&fontHeight);
+			if (ceilf(rect.top - fontHeight.ascent + fontHeight.descent - 2)
+					>= rectTop) {
+				SetHighColor(0, 0, 0);
+				SetLowColor(ViewColor());
+
+				BString text(label);
+				TruncateString(&text, B_TRUNCATE_END, rect.Width());
+				DrawString(text.String(), BPoint(ceilf(rect.left + (rect.Width()
+						- StringWidth(text.String())) / 2),
+					ceilf(rect.top - fontHeight.descent - 2)));
+			}
+		}
+
+		rect.left += rect.Width() / 4;
+		rect.right -= rect.Width() / 3;
+
+		rgb_color base;
+		if ((fModifiers & indicator->modifier) != 0)
+			base = kLitIndicatorColor;
+		else
+			base = kDarkColor;
+
+		be_control_look->DrawButtonFrame(this, rect, updateRect, base,
+			BControlLook::B_DISABLED);
+		be_control_look->DrawButtonBackground(this, rect, updateRect, 
+			base, BControlLook::B_DISABLED);
+	}
 }
 
 
@@ -653,14 +706,14 @@ KeyboardLayoutView::_KeyAt(BPoint point)
 
 
 BRect
-KeyboardLayoutView::_FrameFor(const Key* key)
+KeyboardLayoutView::_FrameFor(BRect keyFrame)
 {
 	BRect rect;
-	rect.left = key->frame.left * fFactor;
+	rect.left = keyFrame.left * fFactor;
-	rect.right = (key->frame.right - key->frame.left) * fFactor + rect.left
+	rect.right = (keyFrame.right - keyFrame.left) * fFactor + rect.left
 		- fGap - 1;
-	rect.top = key->frame.top * fFactor;
+	rect.top = keyFrame.top * fFactor;
-	rect.bottom = (key->frame.bottom - key->frame.top) * fFactor + rect.top
+	rect.bottom = (keyFrame.bottom - keyFrame.top) * fFactor + rect.top
 		- fGap - 1;
 	rect.OffsetBy(fOffset);
 
@@ -668,6 +721,13 @@ KeyboardLayoutView::_FrameFor(const Key* key)
 }
 
 
+BRect
+KeyboardLayoutView::_FrameFor(const Key* key)
+{
+	return _FrameFor(key->frame);
+}
+
+
 void
 KeyboardLayoutView::_SetFontSize(BView* view, key_kind keyKind)
 {
@@ -692,6 +752,14 @@ KeyboardLayoutView::_SetFontSize(BView* view, key_kind keyKind)
 			fSpecialFont.SetSize(fontSize * 1.6);
 			view->SetFont(&fSpecialFont);
 			break;
+
+		case kIndicator:
+		{
+			BFont font;
+			font.SetSize(fontSize * 0.8);
+			view->SetFont(&font);
+			break;
+		}
 	}
 }
 

src/preferences/keymap/KeyboardLayoutView.h

@@ -46,7 +46,8 @@ private:
 	enum key_kind {
 		kNormalKey,
 		kSpecialKey,
-		kSymbolKey
+		kSymbolKey,
+		kIndicator
 	};
 
 			void			_LayoutKeyboard();
@@ -68,6 +69,7 @@ private:
 			bool			_HandleDeadKey(int32 key, int32 modifiers);
 			void			_KeyChanged(const BMessage* message);
 			Key*			_KeyAt(BPoint point);
+			BRect			_FrameFor(BRect keyFrame);
 			BRect			_FrameFor(const Key* key);
 			void			_SetFontSize(BView* view, key_kind keyKind);
 			void			_EvaluateDropTarget(BPoint point);