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pdckbd.c
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pdckbd.c
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/* Public Domain Curses */
#include "pdcwin.h"
/*man-start**************************************************************
pdckbd
------
### Synopsis
unsigned long PDC_get_input_fd(void);
### Description
PDC_get_input_fd() returns the file descriptor that PDCurses
reads its input from. It can be used for select().
### Portability
X/Open BSD SYS V
PDC_get_input_fd - - -
**man-end****************************************************************/
unsigned long pdc_key_modifiers = 0L;
/* These variables are used to store information about the next
Input Event. */
static INPUT_RECORD save_ip;
static MOUSE_STATUS old_mouse_status;
static DWORD event_count = 0;
static SHORT left_key;
static int key_count = 0;
static int save_press = 0;
#define KEV save_ip.Event.KeyEvent
#define MEV save_ip.Event.MouseEvent
#define REV save_ip.Event.WindowBufferSizeEvent
/************************************************************************
* Table for key code translation of function keys in keypad mode *
* These values are for strict IBM keyboard compatibles only *
************************************************************************/
typedef struct
{
unsigned short normal;
unsigned short shift;
unsigned short control;
unsigned short alt;
unsigned short extended;
} KPTAB;
static KPTAB kptab[] =
{
{0, 0, 0, 0, 0 }, /* 0 */
{0, 0, 0, 0, 0 }, /* 1 VK_LBUTTON */
{0, 0, 0, 0, 0 }, /* 2 VK_RBUTTON */
{0, 0, 0, 0, 0 }, /* 3 VK_CANCEL */
{0, 0, 0, 0, 0 }, /* 4 VK_MBUTTON */
{0, 0, 0, 0, 0 }, /* 5 */
{0, 0, 0, 0, 0 }, /* 6 */
{0, 0, 0, 0, 0 }, /* 7 */
{0x08, 0x08, 0x7F, ALT_BKSP, 0 }, /* 8 VK_BACK */
{0x09, KEY_BTAB, CTL_TAB, ALT_TAB, 999 }, /* 9 VK_TAB */
{0, 0, 0, 0, 0 }, /* 10 */
{0, 0, 0, 0, 0 }, /* 11 */
{KEY_B2, 0x35, CTL_PAD5, ALT_PAD5, 0 }, /* 12 VK_CLEAR */
{0x0D, 0x0D, CTL_ENTER, ALT_ENTER, 1 }, /* 13 VK_RETURN */
{0, 0, 0, 0, 0 }, /* 14 */
{0, 0, 0, 0, 0 }, /* 15 */
{0, 0, 0, 0, 0 }, /* 16 VK_SHIFT HANDLED SEPARATELY */
{0, 0, 0, 0, 0 }, /* 17 VK_CONTROL HANDLED SEPARATELY */
{0, 0, 0, 0, 0 }, /* 18 VK_MENU HANDLED SEPARATELY */
{0, 0, 0, 0, 0 }, /* 19 VK_PAUSE */
{0, 0, 0, 0, 0 }, /* 20 VK_CAPITAL HANDLED SEPARATELY */
{0, 0, 0, 0, 0 }, /* 21 VK_HANGUL */
{0, 0, 0, 0, 0 }, /* 22 */
{0, 0, 0, 0, 0 }, /* 23 VK_JUNJA */
{0, 0, 0, 0, 0 }, /* 24 VK_FINAL */
{0, 0, 0, 0, 0 }, /* 25 VK_HANJA */
{0, 0, 0, 0, 0 }, /* 26 */
{0x1B, 0x1B, 0x1B, ALT_ESC, 0 }, /* 27 VK_ESCAPE */
{0, 0, 0, 0, 0 }, /* 28 VK_CONVERT */
{0, 0, 0, 0, 0 }, /* 29 VK_NONCONVERT */
{0, 0, 0, 0, 0 }, /* 30 VK_ACCEPT */
{0, 0, 0, 0, 0 }, /* 31 VK_MODECHANGE */
{0x20, 0x20, 0x20, 0x20, 0 }, /* 32 VK_SPACE */
{KEY_A3, 0x39, CTL_PAD9, ALT_PAD9, 3 }, /* 33 VK_PRIOR */
{KEY_C3, 0x33, CTL_PAD3, ALT_PAD3, 4 }, /* 34 VK_NEXT */
{KEY_C1, 0x31, CTL_PAD1, ALT_PAD1, 5 }, /* 35 VK_END */
{KEY_A1, 0x37, CTL_PAD7, ALT_PAD7, 6 }, /* 36 VK_HOME */
{KEY_B1, 0x34, CTL_PAD4, ALT_PAD4, 7 }, /* 37 VK_LEFT */
{KEY_A2, 0x38, CTL_PAD8, ALT_PAD8, 8 }, /* 38 VK_UP */
{KEY_B3, 0x36, CTL_PAD6, ALT_PAD6, 9 }, /* 39 VK_RIGHT */
{KEY_C2, 0x32, CTL_PAD2, ALT_PAD2, 10 }, /* 40 VK_DOWN */
{0, 0, 0, 0, 0 }, /* 41 VK_SELECT */
{0, 0, 0, 0, 0 }, /* 42 VK_PRINT */
{0, 0, 0, 0, 0 }, /* 43 VK_EXECUTE */
{0, 0, 0, 0, 0 }, /* 44 VK_SNAPSHOT*/
{PAD0, 0x30, CTL_PAD0, ALT_PAD0, 11 }, /* 45 VK_INSERT */
{PADSTOP, 0x2E, CTL_PADSTOP, ALT_PADSTOP,12 }, /* 46 VK_DELETE */
{0, 0, 0, 0, 0 }, /* 47 VK_HELP */
{0x30, 0x29, 0, ALT_0, 0 }, /* 48 */
{0x31, 0x21, 0, ALT_1, 0 }, /* 49 */
{0x32, 0x40, 0, ALT_2, 0 }, /* 50 */
{0x33, 0x23, 0, ALT_3, 0 }, /* 51 */
{0x34, 0x24, 0, ALT_4, 0 }, /* 52 */
{0x35, 0x25, 0, ALT_5, 0 }, /* 53 */
{0x36, 0x5E, 0, ALT_6, 0 }, /* 54 */
{0x37, 0x26, 0, ALT_7, 0 }, /* 55 */
{0x38, 0x2A, 0, ALT_8, 0 }, /* 56 */
{0x39, 0x28, 0, ALT_9, 0 }, /* 57 */
{0, 0, 0, 0, 0 }, /* 58 */
{0, 0, 0, 0, 0 }, /* 59 */
{0, 0, 0, 0, 0 }, /* 60 */
{0, 0, 0, 0, 0 }, /* 61 */
{0, 0, 0, 0, 0 }, /* 62 */
{0, 0, 0, 0, 0 }, /* 63 */
{0, 0, 0, 0, 0 }, /* 64 */
{0x61, 0x41, 0x01, ALT_A, 0 }, /* 65 */
{0x62, 0x42, 0x02, ALT_B, 0 }, /* 66 */
{0x63, 0x43, 0x03, ALT_C, 0 }, /* 67 */
{0x64, 0x44, 0x04, ALT_D, 0 }, /* 68 */
{0x65, 0x45, 0x05, ALT_E, 0 }, /* 69 */
{0x66, 0x46, 0x06, ALT_F, 0 }, /* 70 */
{0x67, 0x47, 0x07, ALT_G, 0 }, /* 71 */
{0x68, 0x48, 0x08, ALT_H, 0 }, /* 72 */
{0x69, 0x49, 0x09, ALT_I, 0 }, /* 73 */
{0x6A, 0x4A, 0x0A, ALT_J, 0 }, /* 74 */
{0x6B, 0x4B, 0x0B, ALT_K, 0 }, /* 75 */
{0x6C, 0x4C, 0x0C, ALT_L, 0 }, /* 76 */
{0x6D, 0x4D, 0x0D, ALT_M, 0 }, /* 77 */
{0x6E, 0x4E, 0x0E, ALT_N, 0 }, /* 78 */
{0x6F, 0x4F, 0x0F, ALT_O, 0 }, /* 79 */
{0x70, 0x50, 0x10, ALT_P, 0 }, /* 80 */
{0x71, 0x51, 0x11, ALT_Q, 0 }, /* 81 */
{0x72, 0x52, 0x12, ALT_R, 0 }, /* 82 */
{0x73, 0x53, 0x13, ALT_S, 0 }, /* 83 */
{0x74, 0x54, 0x14, ALT_T, 0 }, /* 84 */
{0x75, 0x55, 0x15, ALT_U, 0 }, /* 85 */
{0x76, 0x56, 0x16, ALT_V, 0 }, /* 86 */
{0x77, 0x57, 0x17, ALT_W, 0 }, /* 87 */
{0x78, 0x58, 0x18, ALT_X, 0 }, /* 88 */
{0x79, 0x59, 0x19, ALT_Y, 0 }, /* 89 */
{0x7A, 0x5A, 0x1A, ALT_Z, 0 }, /* 90 */
{0, 0, 0, 0, 0 }, /* 91 VK_LWIN */
{0, 0, 0, 0, 0 }, /* 92 VK_RWIN */
{0, 0, 0, 0, 0 }, /* 93 VK_APPS */
{0, 0, 0, 0, 0 }, /* 94 */
{0, 0, 0, 0, 0 }, /* 95 */
{0x30, 0, CTL_PAD0, ALT_PAD0, 0 }, /* 96 VK_NUMPAD0 */
{0x31, 0, CTL_PAD1, ALT_PAD1, 0 }, /* 97 VK_NUMPAD1 */
{0x32, 0, CTL_PAD2, ALT_PAD2, 0 }, /* 98 VK_NUMPAD2 */
{0x33, 0, CTL_PAD3, ALT_PAD3, 0 }, /* 99 VK_NUMPAD3 */
{0x34, 0, CTL_PAD4, ALT_PAD4, 0 }, /* 100 VK_NUMPAD4 */
{0x35, 0, CTL_PAD5, ALT_PAD5, 0 }, /* 101 VK_NUMPAD5 */
{0x36, 0, CTL_PAD6, ALT_PAD6, 0 }, /* 102 VK_NUMPAD6 */
{0x37, 0, CTL_PAD7, ALT_PAD7, 0 }, /* 103 VK_NUMPAD7 */
{0x38, 0, CTL_PAD8, ALT_PAD8, 0 }, /* 104 VK_NUMPAD8 */
{0x39, 0, CTL_PAD9, ALT_PAD9, 0 }, /* 105 VK_NUMPAD9 */
{PADSTAR, SHF_PADSTAR,CTL_PADSTAR, ALT_PADSTAR,999 }, /* 106 VK_MULTIPLY*/
{PADPLUS, SHF_PADPLUS,CTL_PADPLUS, ALT_PADPLUS,999 }, /* 107 VK_ADD */
{0, 0, 0, 0, 0 }, /* 108 VK_SEPARATOR */
{PADMINUS, SHF_PADMINUS,CTL_PADMINUS,ALT_PADMINUS,999}, /* 109 VK_SUBTRACT*/
{0x2E, 0, CTL_PADSTOP, ALT_PADSTOP,0 }, /* 110 VK_DECIMAL */
{PADSLASH, SHF_PADSLASH,CTL_PADSLASH,ALT_PADSLASH,2 }, /* 111 VK_DIVIDE */
{KEY_F(1), KEY_F(13), KEY_F(25), KEY_F(37), 0 }, /* 112 VK_F1 */
{KEY_F(2), KEY_F(14), KEY_F(26), KEY_F(38), 0 }, /* 113 VK_F2 */
{KEY_F(3), KEY_F(15), KEY_F(27), KEY_F(39), 0 }, /* 114 VK_F3 */
{KEY_F(4), KEY_F(16), KEY_F(28), KEY_F(40), 0 }, /* 115 VK_F4 */
{KEY_F(5), KEY_F(17), KEY_F(29), KEY_F(41), 0 }, /* 116 VK_F5 */
{KEY_F(6), KEY_F(18), KEY_F(30), KEY_F(42), 0 }, /* 117 VK_F6 */
{KEY_F(7), KEY_F(19), KEY_F(31), KEY_F(43), 0 }, /* 118 VK_F7 */
{KEY_F(8), KEY_F(20), KEY_F(32), KEY_F(44), 0 }, /* 119 VK_F8 */
{KEY_F(9), KEY_F(21), KEY_F(33), KEY_F(45), 0 }, /* 120 VK_F9 */
{KEY_F(10), KEY_F(22), KEY_F(34), KEY_F(46), 0 }, /* 121 VK_F10 */
{KEY_F(11), KEY_F(23), KEY_F(35), KEY_F(47), 0 }, /* 122 VK_F11 */
{KEY_F(12), KEY_F(24), KEY_F(36), KEY_F(48), 0 }, /* 123 VK_F12 */
/* 124 through 218 */
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0, 0, 0, 0, 0}, {0, 0, 0, 0, 0}, {0, 0, 0, 0, 0},
{0x5B, 0x7B, 0x1B, ALT_LBRACKET,0 }, /* 219 */
{0x5C, 0x7C, 0x1C, ALT_BSLASH, 0 }, /* 220 */
{0x5D, 0x7D, 0x1D, ALT_RBRACKET,0 }, /* 221 */
{0, 0, 0x27, ALT_FQUOTE, 0 }, /* 222 */
{0, 0, 0, 0, 0 }, /* 223 */
{0, 0, 0, 0, 0 }, /* 224 */
{0, 0, 0, 0, 0 } /* 225 */
};
static KPTAB ext_kptab[] =
{
{0, 0, 0, 0, }, /* MUST BE EMPTY */
{PADENTER, SHF_PADENTER, CTL_PADENTER, ALT_PADENTER}, /* 13 */
{PADSLASH, SHF_PADSLASH, CTL_PADSLASH, ALT_PADSLASH}, /* 111 */
{KEY_PPAGE, KEY_SPREVIOUS, CTL_PGUP, ALT_PGUP }, /* 33 */
{KEY_NPAGE, KEY_SNEXT, CTL_PGDN, ALT_PGDN }, /* 34 */
{KEY_END, KEY_SEND, CTL_END, ALT_END }, /* 35 */
{KEY_HOME, KEY_SHOME, CTL_HOME, ALT_HOME }, /* 36 */
{KEY_LEFT, KEY_SLEFT, CTL_LEFT, ALT_LEFT }, /* 37 */
{KEY_UP, KEY_SUP, CTL_UP, ALT_UP }, /* 38 */
{KEY_RIGHT, KEY_SRIGHT, CTL_RIGHT, ALT_RIGHT }, /* 39 */
{KEY_DOWN, KEY_SDOWN, CTL_DOWN, ALT_DOWN }, /* 40 */
{KEY_IC, KEY_SIC, CTL_INS, ALT_INS }, /* 45 */
{KEY_DC, KEY_SDC, CTL_DEL, ALT_DEL }, /* 46 */
{PADSLASH, SHF_PADSLASH, CTL_PADSLASH, ALT_PADSLASH}, /* 191 */
};
/* End of kptab[] */
unsigned long PDC_get_input_fd(void)
{
PDC_LOG(("PDC_get_input_fd() - called\n"));
return 0L;
}
void PDC_set_keyboard_binary(bool on)
{
PDC_LOG(("PDC_set_keyboard_binary() - called\n"));
}
/* check if a key or mouse event is waiting */
bool PDC_check_key(void)
{
if (key_count > 0)
return TRUE;
GetNumberOfConsoleInputEvents(pdc_con_in, &event_count);
return (event_count != 0);
}
/* _get_key_count returns 0 if save_ip doesn't contain an event which
should be passed back to the user. This function filters "useless"
events.
The function returns the number of keys waiting. This may be > 1
if the repetition of real keys pressed so far are > 1.
Returns 0 on NUMLOCK, CAPSLOCK, SCROLLLOCK.
Returns 1 for SHIFT, ALT, CTRL only if no other key has been pressed
in between, and SP->return_key_modifiers is set; these are returned
on keyup.
Normal keys are returned on keydown only. The number of repetitions
are returned. Dead keys (diacritics) are omitted. See below for a
description.
*/
static int _get_key_count(void)
{
int num_keys = 0, vk;
PDC_LOG(("_get_key_count() - called\n"));
vk = KEV.wVirtualKeyCode;
if (KEV.bKeyDown)
{
/* key down */
save_press = 0;
if (vk == VK_CAPITAL || vk == VK_NUMLOCK || vk == VK_SCROLL)
{
/* throw away these modifiers */
}
else if (vk == VK_SHIFT || vk == VK_CONTROL || vk == VK_MENU)
{
/* These keys are returned on keyup only. */
save_press = vk;
switch (vk)
{
case VK_SHIFT:
left_key = GetKeyState(VK_LSHIFT);
break;
case VK_CONTROL:
left_key = GetKeyState(VK_LCONTROL);
break;
case VK_MENU:
left_key = GetKeyState(VK_LMENU);
}
}
else
{
/* Check for diacritics. These are dead keys. Some locales
have modified characters like umlaut-a, which is an "a"
with two dots on it. In some locales you have to press a
special key (the dead key) immediately followed by the
"a" to get a composed umlaut-a. The special key may have
a normal meaning with different modifiers. */
if (KEV.uChar.UnicodeChar || !(MapVirtualKey(vk, 2) & 0x80000000))
num_keys = KEV.wRepeatCount;
}
}
else
{
/* key up */
/* Only modifier keys or the results of ALT-numpad entry are
returned on keyup */
if ((vk == VK_MENU && KEV.uChar.UnicodeChar) ||
((vk == VK_SHIFT || vk == VK_CONTROL || vk == VK_MENU) &&
vk == save_press))
{
save_press = 0;
num_keys = 1;
}
}
PDC_LOG(("_get_key_count() - returning: num_keys %d\n", num_keys));
return num_keys;
}
/* _process_key_event returns -1 if the key in save_ip should be
ignored. Otherwise it returns the keycode which should be returned
by PDC_get_key(). save_ip must be a key event.
CTRL-ALT support has been disabled, when is it emitted plainly? */
static int _process_key_event(void)
{
int key = (unsigned short)KEV.uChar.UnicodeChar;
WORD vk = KEV.wVirtualKeyCode;
DWORD state = KEV.dwControlKeyState;
int idx;
BOOL enhanced;
SP->key_code = TRUE;
/* Save the key modifiers if required. Do this first to allow to
detect e.g. a pressed CTRL key after a hit of NUMLOCK. */
if (SP->save_key_modifiers)
{
if (state & (LEFT_ALT_PRESSED|RIGHT_ALT_PRESSED))
pdc_key_modifiers |= PDC_KEY_MODIFIER_ALT;
if (state & SHIFT_PRESSED)
pdc_key_modifiers |= PDC_KEY_MODIFIER_SHIFT;
if (state & (LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED))
pdc_key_modifiers |= PDC_KEY_MODIFIER_CONTROL;
if (state & NUMLOCK_ON)
pdc_key_modifiers |= PDC_KEY_MODIFIER_NUMLOCK;
}
/* Handle modifier keys hit by themselves */
switch (vk)
{
case VK_SHIFT: /* shift */
if (!SP->return_key_modifiers)
return -1;
return (left_key & 0x8000) ? KEY_SHIFT_L : KEY_SHIFT_R;
case VK_CONTROL: /* control */
if (!SP->return_key_modifiers)
return -1;
return (left_key & 0x8000) ? KEY_CONTROL_L : KEY_CONTROL_R;
case VK_MENU: /* alt */
if (!key)
{
if (!SP->return_key_modifiers)
return -1;
return (left_key & 0x8000) ? KEY_ALT_L : KEY_ALT_R;
}
}
/* The system may emit Ascii or Unicode characters depending on
whether ReadConsoleInputA or ReadConsoleInputW is used.
Normally, if key != 0 then the system did the translation
successfully. But this is not true for LEFT_ALT (different to
RIGHT_ALT). In case of LEFT_ALT we can get key != 0. So
check for this first. */
if (key && ( !(state & LEFT_ALT_PRESSED) ||
(state & RIGHT_ALT_PRESSED) ))
{
/* This code should catch all keys returning a printable
character. Characters above 0x7F should be returned as
positive codes. */
if (kptab[vk].extended == 0)
{
SP->key_code = FALSE;
return key;
}
}
/* This case happens if a functional key has been entered. */
if ((state & ENHANCED_KEY) && (kptab[vk].extended != 999))
{
enhanced = TRUE;
idx = kptab[vk].extended;
}
else
{
enhanced = FALSE;
idx = vk;
}
if (state & SHIFT_PRESSED)
key = enhanced ? ext_kptab[idx].shift : kptab[idx].shift;
else if (state & (LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED))
key = enhanced ? ext_kptab[idx].control : kptab[idx].control;
else if (state & (LEFT_ALT_PRESSED|RIGHT_ALT_PRESSED))
key = enhanced ? ext_kptab[idx].alt : kptab[idx].alt;
else
key = enhanced ? ext_kptab[idx].normal : kptab[idx].normal;
if (key < KEY_CODE_YES)
SP->key_code = FALSE;
return key;
}
static int _process_mouse_event(void)
{
static const DWORD button_mask[] = {1, 4, 2};
short action, shift_flags = 0;
int i;
save_press = 0;
SP->key_code = TRUE;
memset(&pdc_mouse_status, 0, sizeof(MOUSE_STATUS));
/* Handle scroll wheel */
if (MEV.dwEventFlags == 4)
{
pdc_mouse_status.changes = (MEV.dwButtonState & 0xFF000000) ?
PDC_MOUSE_WHEEL_DOWN : PDC_MOUSE_WHEEL_UP;
pdc_mouse_status.x = -1;
pdc_mouse_status.y = -1;
memset(&old_mouse_status, 0, sizeof(old_mouse_status));
return KEY_MOUSE;
}
if (MEV.dwEventFlags == 8)
{
pdc_mouse_status.changes = (MEV.dwButtonState & 0xFF000000) ?
PDC_MOUSE_WHEEL_RIGHT : PDC_MOUSE_WHEEL_LEFT;
pdc_mouse_status.x = -1;
pdc_mouse_status.y = -1;
memset(&old_mouse_status, 0, sizeof(old_mouse_status));
return KEY_MOUSE;
}
action = (MEV.dwEventFlags == 2) ? BUTTON_DOUBLE_CLICKED :
((MEV.dwEventFlags == 1) ? BUTTON_MOVED : BUTTON_PRESSED);
for (i = 0; i < 3; i++)
pdc_mouse_status.button[i] =
(MEV.dwButtonState & button_mask[i]) ? action : 0;
if (action == BUTTON_PRESSED && MEV.dwButtonState & 7 && SP->mouse_wait)
{
/* Check for a click -- a PRESS followed immediately by a release */
if (!event_count)
{
napms(SP->mouse_wait);
GetNumberOfConsoleInputEvents(pdc_con_in, &event_count);
}
if (event_count)
{
INPUT_RECORD ip;
DWORD count;
bool have_click = FALSE;
PeekConsoleInput(pdc_con_in, &ip, 1, &count);
for (i = 0; i < 3; i++)
{
if (pdc_mouse_status.button[i] == BUTTON_PRESSED &&
!(ip.Event.MouseEvent.dwButtonState & button_mask[i]))
{
pdc_mouse_status.button[i] = BUTTON_CLICKED;
have_click = TRUE;
}
}
/* If a click was found, throw out the event */
if (have_click)
ReadConsoleInput(pdc_con_in, &ip, 1, &count);
}
}
pdc_mouse_status.x = MEV.dwMousePosition.X;
pdc_mouse_status.y = MEV.dwMousePosition.Y;
pdc_mouse_status.changes = 0;
for (i = 0; i < 3; i++)
{
if (old_mouse_status.button[i] != pdc_mouse_status.button[i])
pdc_mouse_status.changes |= (1 << i);
if (pdc_mouse_status.button[i] == BUTTON_MOVED)
{
/* Discard non-moved "moves" */
if (pdc_mouse_status.x == old_mouse_status.x &&
pdc_mouse_status.y == old_mouse_status.y)
return -1;
/* Motion events always flag the button as changed */
pdc_mouse_status.changes |= (1 << i);
pdc_mouse_status.changes |= PDC_MOUSE_MOVED;
break;
}
}
old_mouse_status = pdc_mouse_status;
/* Treat click events as release events for comparison purposes */
for (i = 0; i < 3; i++)
{
if (old_mouse_status.button[i] == BUTTON_CLICKED ||
old_mouse_status.button[i] == BUTTON_DOUBLE_CLICKED)
old_mouse_status.button[i] = BUTTON_RELEASED;
}
/* Check for SHIFT/CONTROL/ALT */
if (MEV.dwControlKeyState & (LEFT_ALT_PRESSED|RIGHT_ALT_PRESSED))
shift_flags |= BUTTON_ALT;
if (MEV.dwControlKeyState & (LEFT_CTRL_PRESSED|RIGHT_CTRL_PRESSED))
shift_flags |= BUTTON_CONTROL;
if (MEV.dwControlKeyState & SHIFT_PRESSED)
shift_flags |= BUTTON_SHIFT;
if (shift_flags)
{
for (i = 0; i < 3; i++)
{
if (pdc_mouse_status.changes & (1 << i))
pdc_mouse_status.button[i] |= shift_flags;
}
}
return KEY_MOUSE;
}
/* return the next available key or mouse event */
int PDC_get_key(void)
{
pdc_key_modifiers = 0L;
if (!key_count)
{
DWORD count;
ReadConsoleInput(pdc_con_in, &save_ip, 1, &count);
event_count--;
if (save_ip.EventType == MOUSE_EVENT ||
save_ip.EventType == WINDOW_BUFFER_SIZE_EVENT)
key_count = 1;
else if (save_ip.EventType == KEY_EVENT)
key_count = _get_key_count();
}
if (key_count)
{
key_count--;
switch (save_ip.EventType)
{
case KEY_EVENT:
return _process_key_event();
case MOUSE_EVENT:
return _process_mouse_event();
case WINDOW_BUFFER_SIZE_EVENT:
if (REV.dwSize.Y != LINES || REV.dwSize.X != COLS)
{
if (!SP->resized)
{
SP->resized = TRUE;
SP->key_code = TRUE;
return KEY_RESIZE;
}
}
}
}
return -1;
}
/* discard any pending keyboard or mouse input -- this is the core
routine for flushinp() */
void PDC_flushinp(void)
{
PDC_LOG(("PDC_flushinp() - called\n"));
FlushConsoleInputBuffer(pdc_con_in);
}
int PDC_mouse_set(void)
{
/* If turning on mouse input: Set ENABLE_MOUSE_INPUT, and clear
all other flags, including the extended flags;
If turning off the mouse: Set QuickEdit Mode to the status it
had on startup, and clear all other flags */
SetConsoleMode(pdc_con_in, SP->_trap_mbe ?
(ENABLE_MOUSE_INPUT|0x0088) : (pdc_quick_edit|0x0088));
memset(&old_mouse_status, 0, sizeof(old_mouse_status));
return OK;
}
int PDC_modifiers_set(void)
{
return OK;
}