x11: support mouse wheel. ascii text keyboard input

core/input/keyboard_device.cpp

@@ -0,0 +1,3 @@
+#include "keyboard_device.h"
+
+KeyboardDevice *KeyboardDevice::_instance;

core/input/keyboard_device.h

@@ -21,21 +21,37 @@
 #include "types.h"
 #include "mapping.h"
 
-template <typename Keycode>
 class KeyboardDevice
 {
 public:
 	virtual const char* name() = 0;
 	int maple_port() { return _maple_port; }
-	virtual void keyboard_input(Keycode keycode, bool pressed, int modifier_keys = 0);
+	void keyboard_character(char c);
+	std::string get_character_input();
 	virtual ~KeyboardDevice() {}
 
+	static KeyboardDevice *GetInstance() { return _instance; }
+
 protected:
-	KeyboardDevice(int maple_port) : _maple_port(maple_port), _kb_used(0), _modifier_keys(0) {}
-	virtual u8 convert_keycode(Keycode keycode) = 0;
+	KeyboardDevice(int maple_port) : _maple_port(maple_port) { _instance = this; }
 
 private:
 	int _maple_port;
+	std::string char_input;
+	static KeyboardDevice *_instance;
+};
+
+template <typename Keycode>
+class KeyboardDeviceTemplate : public KeyboardDevice
+{
+public:
+	virtual void keyboard_input(Keycode keycode, bool pressed, int modifier_keys = 0);
+
+protected:
+	KeyboardDeviceTemplate(int maple_port) : KeyboardDevice(maple_port), _kb_used(0), _modifier_keys(0) {}
+	virtual u8 convert_keycode(Keycode keycode) = 0;
+
+private:
 	int _modifier_keys;
 	int _kb_used;
 };
@@ -44,7 +60,7 @@ extern u8 kb_key[6];		// normal keys pressed
 extern u8 kb_shift; 		// shift keys pressed (bitmask)
 
 template <typename Keycode>
-void KeyboardDevice<Keycode>::keyboard_input(Keycode keycode, bool pressed, int modifier_keys)
+void KeyboardDeviceTemplate<Keycode>::keyboard_input(Keycode keycode, bool pressed, int modifier_keys)
 {
 	u8 dc_keycode = convert_keycode(keycode);
 	if (dc_keycode == 0xE1 || dc_keycode == 0xE5)		// SHIFT
@@ -94,3 +110,13 @@ void KeyboardDevice<Keycode>::keyboard_input(Keycode keycode, bool pressed, int
 		kb_shift = modifier_keys | _modifier_keys;
 	}
 }
+
+inline void KeyboardDevice::keyboard_character(char c) {
+	char_input.push_back(c);
+}
+
+inline std::string KeyboardDevice::get_character_input() {
+	std::string input = char_input;
+	char_input.clear();
+	return input;
+}

core/linux-dist/x11.cpp

@@ -212,6 +212,14 @@ void input_x11_handle()
 		switch(e.type)
 		{
 			case KeyPress:
+				{
+					char buf[2];
+					KeySym keysym_return;
+					int len = XLookupString(&e.xkey, buf, 1, &keysym_return, NULL);
+					if (len > 0)
+						x11_keyboard->keyboard_character(buf[0]);
+				}
+				/* no break */
 			case KeyRelease:
 				{
 					if (e.type == KeyRelease && XEventsQueued(display, QueuedAfterReading))
@@ -293,12 +301,26 @@ void input_x11_handle()
 				mouse_gamepad->gamepad_btn_input(e.xbutton.button, e.type == ButtonPress);
 				{
 					u32 button_mask = 0;
-					if (e.xbutton.button == Button1)		// Left button
+					switch (e.xbutton.button)
+					{
+					case Button1:		// Left button
 						button_mask = 1 << 2;
-					else if (e.xbutton.button == Button2)	// Middle button
+						break;
+					case Button2:		// Middle button
 						button_mask = 1 << 3;
-					else if (e.xbutton.button == Button3)	// Right button
+						break;
+					case Button3:		// Right button
 						button_mask = 1 << 1;
+						break;
+					case Button4: 		// Mouse wheel up
+						mo_wheel_delta -= 16;
+						break;
+					case Button5: 		// Mouse wheel down
+						mo_wheel_delta += 16;
+						break;
+					default:
+						break;
+					}
 
 					if (button_mask)
 					{

core/linux-dist/x11_keyboard.h

@@ -3,10 +3,10 @@
 #include "input/gamepad_device.h"
 #include "x11.h"
 
-class X11KeyboardDevice : public KeyboardDevice<int>
+class X11KeyboardDevice : public KeyboardDeviceTemplate<int>
 {
 public:
-	X11KeyboardDevice(int maple_port) : KeyboardDevice(maple_port)
+	X11KeyboardDevice(int maple_port) : KeyboardDeviceTemplate(maple_port)
 	{
 		//04-1D Letter keys A-Z (in alphabetic order)
 		kb_map[KEY_A] = 0x04;

core/sdl/sdl_keyboard.h

@@ -2,10 +2,10 @@
 #include "input/keyboard_device.h"
 #include "sdl.h"
 
-class SDLKeyboardDevice : public KeyboardDevice<SDL_Keycode>
+class SDLKeyboardDevice : public KeyboardDeviceTemplate<SDL_Keycode>
 {
 public:
-	SDLKeyboardDevice(int maple_port) : KeyboardDevice(maple_port)
+	SDLKeyboardDevice(int maple_port) : KeyboardDeviceTemplate(maple_port)
 	{
 		//04-1D Letter keys A-Z (in alphabetic order)
 		kb_map[SDLK_a] = 0x04;

core/windows/win_keyboard.h

@@ -4,10 +4,10 @@
 // Used to differentiate between main enter key and num keypad one
 #define VK_NUMPAD_RETURN 0x0E
 
-class Win32KeyboardDevice : public KeyboardDevice<u8>
+class Win32KeyboardDevice : public KeyboardDeviceTemplate<u8>
 {
 public:
-	Win32KeyboardDevice(int maple_port) : KeyboardDevice(maple_port)
+	Win32KeyboardDevice(int maple_port) : KeyboardDeviceTemplate(maple_port)
 	{
 		kb_map['A'] = 0x04;
 		kb_map['B'] = 0x05;