Receiving multi-color messages

Chat messages can now be formatted with colors in addition to varying
faces with "color_start," "color_length," and "color" slots in
IM_MESSAGE_RECEIVED.

application/ChatProtocolMessages.h

@@ -77,10 +77,13 @@ enum im_what_code {
 		buffer, rather than a specific conversation.
 		face_start and face_length specify the location of formatted text in
 		the body, and "face" is the desired font face. Unsupported in bulk,
+		color_* works much the same, but with colors. Not much else to say.
 		i.e., IM_LOGS_RECEIVED.
 		Requires:	String "body"
 		Allows:		String "chat_id", String "user_id", String "user_name",
-					int32s "face_start", int32s "face_length", uint16s "face" */
+					int32s "face_start", int32s "face_length", uint16s "face"
+					int32s "color_start", int32s "color_length",
+					rgb_colors "color" */
 	IM_MESSAGE_RECEIVED					= 22,
 
 	/*!	Logs received					→App

application/views/ConversationView.cpp

@@ -413,7 +413,7 @@ ConversationView::_AppendMessage(BMessage* msg)
 	}
 
 	// … else we're jamming a message into this view no matter what it takes!
-	if (msg->HasInt32("face_start") == true) {
+	if (msg->HasInt32("face_start") || msg->HasInt32("color_start")) {
 		_AppendFormattedMessage(msg);
 		return;
 	}
@@ -504,10 +504,12 @@ ConversationView::_AppendFormattedMessage(BMessage* msg)
 	uint16 face = 0;
 	UInt16IntMap face_indices;
 	rgb_color color = ui_color(B_PANEL_TEXT_COLOR);
+	int32 colorIndice = -1;
 
 	BFont font;
 	for (int i = 0; i < body.CountChars(); i++) {
 		_EnableStartingFaces(msg, i, &face, &face_indices);
+		_EnableStartingColor(msg, i, &color, &colorIndice);
 
 		if (face == B_REGULAR_FACE) {
 			font = BFont();
@@ -517,6 +519,9 @@ ConversationView::_AppendFormattedMessage(BMessage* msg)
 			font.SetFace(face);
 		}
 
+		if (colorIndice <= 0)
+			color = ui_color(B_PANEL_TEXT_COLOR);
+
 		int32 bytes;
 		const char* curChar = body.CharAt(i, &bytes);
 		char append[bytes];
@@ -527,6 +532,7 @@ ConversationView::_AppendFormattedMessage(BMessage* msg)
 		fReceiveView->Append(append, color, &font);
 
 		_DisableEndingFaces(msg, &face, &face_indices);
+		colorIndice--;
 	}
 	fReceiveView->Append("\n");
 }
@@ -576,6 +582,26 @@ ConversationView::_DisableEndingFaces(BMessage* msg, uint16* face,
 }
 
 
+void
+ConversationView::_EnableStartingColor(BMessage* msg, int32 index,
+	rgb_color* color, int32* indice)
+{
+	rgb_color newColor;
+	int32 color_start, color_length, i = 0;
+	while (msg->FindInt32("color_start", i, &color_start) == B_OK) {
+		if (color_start == index
+				&& msg->FindInt32("color_length", i, &color_length) == B_OK
+				&& msg->FindColor("color", i, &newColor) == B_OK)
+		{
+			*indice = color_length;
+			*color = newColor;
+			break;
+		}
+		i++;
+	}
+}
+
+
 void
 ConversationView::_UserMessage(const char* format, const char* bodyFormat,
 	BMessage* msg)

application/views/ConversationView.h

@@ -64,6 +64,8 @@ private:
 							uint16* face, UInt16IntMap* indices);
 			void		_DisableEndingFaces(BMessage* msg, uint16* face,
 							UInt16IntMap* indices);
+			void		_EnableStartingColor(BMessage* msg, int32 index,
+							rgb_color* color, int32* indice);
 
 			void		_UserMessage(const char* format, const char* bodyFormat,
 									 BMessage* msg);