From 9ea92d4a4736ccbcc375e3ea0f8de13af0ba8723 Mon Sep 17 00:00:00 2001
From: Dario Manesku <dariomanesku@gmail.com>
Date: Mon, 9 Mar 2015 03:52:09 +0100
Subject: [PATCH] Added char events for entry-sdl.

---
 examples/common/entry/entry.cpp     | 37 +++++++++++++++++++++++++++++
 examples/common/entry/entry_p.h     |  2 ++
 examples/common/entry/entry_sdl.cpp | 26 ++++++++++++++++++++
 3 files changed, 65 insertions(+)

diff --git a/examples/common/entry/entry.cpp b/examples/common/entry/entry.cpp
index 947d4204..1007787a 100644
--- a/examples/common/entry/entry.cpp
+++ b/examples/common/entry/entry.cpp
@@ -34,6 +34,43 @@ namespace entry
 	}
 #endif // ENTRY_CONFIG_IMPLEMENT_DEFAULT_ALLOCATOR
 
+	char keyToAscii(Key::Enum _key, uint8_t _modifiers)
+	{
+		const bool isAscii = (Key::Key0 <= _key && _key <= Key::KeyZ)
+						  || (Key::Esc  <= _key && _key <= Key::Minus);
+		if (!isAscii)
+		{
+			return '\0';
+		}
+
+		const bool isNumber = (Key::Key0 <= _key && _key <= Key::Key9);
+		if (isNumber)
+		{
+			return '0' + (_key - Key::Key0);
+		}
+
+		const bool isChar = (Key::KeyA <= _key && _key <= Key::KeyZ);
+		if (isChar)
+		{
+			enum { ShiftMask = Modifier::LeftShift|Modifier::RightShift };
+
+			const bool shift = !!(_modifiers&ShiftMask);
+			return (shift ? 'A' : 'a') + (_key - Key::KeyA);
+		}
+
+		switch (_key)
+		{
+		case Key::Esc:       { return 0x1b; } break;
+		case Key::Return:    { return 0x0d; } break;
+		case Key::Tab:       { return 0x09; } break;
+		case Key::Space:     { return 0xa0; } break;
+		case Key::Backspace: { return 0x08; } break;
+		case Key::Plus:      { return 0x2b; } break;
+		case Key::Minus:     { return 0x2d; } break;
+		default:        { return '\0'; } break;
+		}
+	}
+
 	bool setOrToggle(uint32_t& _flags, const char* _name, uint32_t _bit, int _first, int _argc, char const* const* _argv)
 	{
 		if (0 == strcmp(_argv[_first], _name) )
diff --git a/examples/common/entry/entry_p.h b/examples/common/entry/entry_p.h
index 39a289ed..74d4756b 100644
--- a/examples/common/entry/entry_p.h
+++ b/examples/common/entry/entry_p.h
@@ -56,6 +56,8 @@ namespace entry
 
 	int main(int _argc, char** _argv);
 
+	char keyToAscii(Key::Enum _key, uint8_t _modifiers);
+
 	struct Event
 	{
 		enum Enum
diff --git a/examples/common/entry/entry_sdl.cpp b/examples/common/entry/entry_sdl.cpp
index 8d9b5b1c..4aea1044 100644
--- a/examples/common/entry/entry_sdl.cpp
+++ b/examples/common/entry/entry_sdl.cpp
@@ -412,6 +412,32 @@ namespace entry
 						break;
 
 					case SDL_KEYDOWN:
+						{
+							const SDL_KeyboardEvent& kev = event.key;
+							WindowHandle handle = findHandle(kev.windowID);
+							if (isValid(handle) )
+							{
+								uint8_t modifiers = translateKeyModifiers(kev.keysym.mod);
+								Key::Enum key = translateKey(kev.keysym.scancode);
+
+								const uint8_t shiftMask = Modifier::LeftShift|Modifier::RightShift;
+								const bool nonShiftModifiers = (0 != (modifiers&(~shiftMask) ) );
+								const bool isCharPressed = (Key::Key0 <= key && key <= Key::KeyZ) || (Key::Esc <= key && key <= Key::Minus);
+								const bool isText = isCharPressed && !nonShiftModifiers;
+
+								if (isText)
+								{
+									uint8_t pressedChar[4];
+									pressedChar[0] = keyToAscii(key, modifiers);
+									m_eventQueue.postCharEvent(handle, 1, pressedChar);
+								}
+								else
+								{
+									m_eventQueue.postKeyEvent(handle, key, modifiers, kev.state == SDL_PRESSED);
+								}
+							}
+						}
+						break;
 					case SDL_KEYUP:
 						{
 							const SDL_KeyboardEvent& kev = event.key;