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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#include <cstdio>
#include <cstring>
#include "API/Display/input_device.h"
#include "API/Display/input_event.h"
#include "API/Display/keys.h"
#include "input_device_x11keyboard.h"
#include "../../GL/GLX/display_window_opengl.h"
/////////////////////////////////////////////////////////////////////////////
// CL_InputDevice_X11Keyboard construction:
CL_InputDevice_X11Keyboard::CL_InputDevice_X11Keyboard(CL_DisplayWindow_OpenGL *owner) :
owner(owner)
{
type = CL_InputDevice::keyboard;
slot_xevent = owner->sig_xevent.connect(
this, &CL_InputDevice_X11Keyboard::on_xevent);
current_keys_down.clear();
}
CL_InputDevice_X11Keyboard::~CL_InputDevice_X11Keyboard()
{
}
/////////////////////////////////////////////////////////////////////////////
// CL_InputDevice_X11Keyboard attributes:
/////////////////////////////////////////////////////////////////////////////
// CL_InputDevice_X11Keyboard operations:
std::string CL_InputDevice_X11Keyboard::get_key_name(int virtual_key) const
{
// Look up key name:
char *name = XKeysymToString(virtual_key);
if (name && name[0] != 0) return name;
// Unknown. Return something at least :)
char buffer[256];
snprintf(buffer, 256, "Unknown %d", virtual_key);
return buffer;
}
bool CL_InputDevice_X11Keyboard::get_keycode(int keysym) const
{
// Ignore all key events when we don't have focus
if(!owner->has_focus())
return false;
char keyboard_state[32];
KeyCode code = XKeysymToKeycode(owner->get_display(), keysym);
XQueryKeymap(owner->get_display(), keyboard_state);
return keyboard_state[code/8] & (1 << code%8);
}
float CL_InputDevice_X11Keyboard::get_axis(int index) const
{
return 0.0f;
}
std::string CL_InputDevice_X11Keyboard::get_name() const
{
return "System Keyboard";
}
std::string CL_InputDevice_X11Keyboard::get_device_name() const
{
return "x11:CoreKeyboard";
}
int CL_InputDevice_X11Keyboard::get_axis_count() const
{
return 0;
}
int CL_InputDevice_X11Keyboard::get_button_count() const
{
return -1;
}
/////////////////////////////////////////////////////////////////////////////
// CL_InputDevice_X11Keyboard implementation:
void CL_InputDevice_X11Keyboard::on_xevent(XEvent &event)
{
// Only handle keyboard events.
if (event.type != KeyPress && event.type != KeyRelease) return;
// Figure out what key it was:
KeySym sym = XLookupKeysym(&event.xkey, 0);
if (sym == NoSymbol)
{
//we have no idea what it is, probably the numpad = on an apple keyboard or something like that.
//Better to not send a message, otherwise it might look like a mouse message but with bad mouse coordinates
//if the app is sharing the handler its mouse stuff. -SAR
return;
}
// set state of modifier keys
bool key_state = false;
if (event.type == KeyPress)
key_state = true;
switch(sym)
{
case CL_KEY_LCONTROL: owner->left_ctrl_down = key_state; break;
case CL_KEY_LMENU: owner->left_alt_down = key_state; break;
case CL_KEY_LSHIFT: owner->left_shift_down = key_state; break;
case CL_KEY_RCONTROL: owner->right_ctrl_down = key_state; break;
case CL_KEY_RMENU: owner->right_alt_down = key_state; break;
case CL_KEY_RSHIFT: owner->right_shift_down = key_state; break;
}
// Setup event structure for ClanLib:
CL_InputEvent key;
key.type = CL_InputEvent::released;
if (event.type == KeyPress) key.type = CL_InputEvent::pressed;
key.id = sym;
key.device = owner->keyboard;
if(current_keys_down.find(sym) == current_keys_down.end())
{
key.repeat_count = 0;
current_keys_down.insert(KeyDownCounter(sym,0));
}
else
{
current_keys_down[sym]++;
key.repeat_count = current_keys_down[sym];
}
// Need to somehow get proper character sequence from X11. This code
// wont keep proper track of deadkeys:
char buf[11];
buf[10] = 0;
XLookupString(&event.xkey, buf, 10, 0, 0);
if (strlen(buf) > 0) key.str = std::string(buf, 1);
// Emit it.
if (key.type == CL_InputEvent::pressed)
{
owner->keyboard.sig_key_down().call(key);
}
else
{
owner->keyboard.sig_key_up().call(key);
current_keys_down.erase(sym);
}
}
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