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https://github.com/reactos/reactos.git
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81345fd691
next few weeks. I'm going through the DFLAT api doc and fixing the export names and then going to try to build a simple hello dflat application. svn path=/trunk/; revision=2844
682 lines
15 KiB
C
682 lines
15 KiB
C
/* --------- message.c ---------- */
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#include "dflat32/dflat.h"
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#include "dflat32/system.h"
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static int handshaking = 0;
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BOOL AllocTesting = FALSE;
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jmp_buf AllocError;
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BOOL AltDown = FALSE;
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/* ---------- event queue ---------- */
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static struct events
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{
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DFMESSAGE event;
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int mx;
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int my;
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} EventQueue[MAXMESSAGES];
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/* ---------- message queue --------- */
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static struct msgs
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{
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DFWINDOW wnd;
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DFMESSAGE msg;
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PARAM p1;
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PARAM p2;
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} MsgQueue[MAXMESSAGES];
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static int EventQueueOnCtr;
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static int EventQueueOffCtr;
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static int EventQueueCtr;
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static int MsgQueueOnCtr;
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static int MsgQueueOffCtr;
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static int MsgQueueCtr;
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DFWINDOW CaptureMouse;
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DFWINDOW CaptureKeyboard;
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static BOOL NoChildCaptureMouse;
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static BOOL NoChildCaptureKeyboard;
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static int doubletimer = -1;
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static int delaytimer = -1;
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static int clocktimer = -1;
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static DFWINDOW Cwnd;
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static char ermsg[] = "Error accessing drive x";
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static void StopMsg(void)
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{
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ClearClipboard();
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ClearDialogBoxes();
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restorecursor();
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unhidecursor();
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}
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SHORT DfGetScreenHeight (void)
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{
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return sScreenHeight;
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}
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SHORT DfGetScreenWidth (void)
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{
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return sScreenWidth;
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}
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/* ------------ initialize the message system --------- */
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BOOL DfInitialize (VOID)
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{
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CONSOLE_SCREEN_BUFFER_INFO csbi;
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AllocTesting = TRUE;
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if (setjmp(AllocError) != 0)
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{
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StopMsg();
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return FALSE;
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}
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/* get input and output handles */
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hInput = GetStdHandle (STD_INPUT_HANDLE);
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hOutput = GetStdHandle (STD_OUTPUT_HANDLE);
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/* get screen size */
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GetConsoleScreenBufferInfo (hOutput, &csbi);
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sScreenHeight = (csbi.srWindow.Bottom - csbi.srWindow.Top) + 1;
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sScreenWidth = (csbi.srWindow.Right - csbi.srWindow.Left) + 1;
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/* enable mouse events */
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SetConsoleMode (hInput, ENABLE_MOUSE_INPUT);
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savecursor();
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hidecursor();
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CaptureMouse = NULL;
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CaptureKeyboard = NULL;
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NoChildCaptureMouse = FALSE;
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NoChildCaptureKeyboard = FALSE;
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MsgQueueOnCtr = 0;
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MsgQueueOffCtr = 0;
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MsgQueueCtr = 0;
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EventQueueOnCtr = 0;
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EventQueueOffCtr = 0;
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EventQueueCtr = 0;
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DfPostMessage (NULL, DFM_START, 0, 0);
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return TRUE;
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}
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void DfTerminate (void)
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{
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}
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/* ----- post an event and parameters to event queue ---- */
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static void PostEvent(DFMESSAGE event, int p1, int p2)
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{
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if (EventQueueCtr != MAXMESSAGES) {
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EventQueue[EventQueueOnCtr].event = event;
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EventQueue[EventQueueOnCtr].mx = p1;
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EventQueue[EventQueueOnCtr].my = p2;
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if (++EventQueueOnCtr == MAXMESSAGES)
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EventQueueOnCtr = 0;
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EventQueueCtr++;
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}
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}
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/* ------ collect mouse, clock, and keyboard events ----- */
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static void collect_events(void)
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{
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static int OldShiftKeys = 0;
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int sk = 0;
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#ifdef TIMER_AVAILABLE
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static BOOL flipflop = FALSE;
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static char timestr[9];
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struct tm *now;
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int hr;
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#endif
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HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
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INPUT_RECORD ir;
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DWORD dwRead;
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int c;
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#ifdef TIMER_AVAILABLE
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/* -------- test for a clock event (one/second) ------- */
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if (timed_out(clocktimer))
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{
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/* ----- get the current time ----- */
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time_t t = time(NULL);
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now = localtime(&t);
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hr = now->tm_hour > 12 ?
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now->tm_hour - 12 :
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now->tm_hour;
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if (hr == 0)
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hr = 12;
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sprintf(timestr, "%2d:%02d", hr, now->tm_min);
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strcpy(timestr+5, now->tm_hour > 11 ? "pm " : "am ");
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/* ------- blink the : at one-second intervals ----- */
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if (flipflop)
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*(timestr+2) = ' ';
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flipflop ^= TRUE;
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/* -------- reset the timer -------- */
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set_timer(clocktimer, 1);
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/* -------- post the clock event -------- */
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PostEvent(CLOCKTICK, (PARAM)timestr, 0);
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}
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#endif
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// WaitForSingleObject (hInput, INFINITE);
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ReadConsoleInput (hInput, &ir, 1, &dwRead);
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if ((ir.EventType == KEY_EVENT) &&
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(ir.Event.KeyEvent.bKeyDown == TRUE))
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{
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/* handle key down events */
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/* handle shift state changes */
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if (ir.Event.KeyEvent.dwControlKeyState &
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(LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED))
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{
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sk |= ALTKEY;
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}
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if (ir.Event.KeyEvent.dwControlKeyState &
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(LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
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{
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sk |= CTRLKEY;
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}
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if (ir.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED)
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{
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sk |= LEFTSHIFT + RIGHTSHIFT;
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}
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if (sk != OldShiftKeys)
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{
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OldShiftKeys = sk;
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/* the shift status changed */
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PostEvent(SHIFT_CHANGED, sk, 0);
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#if 0
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if (sk & ALTKEY)
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AltDown = TRUE;
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else
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AltDown = FALSE;
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#endif
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}
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if (ir.Event.KeyEvent.uChar.AsciiChar == 0)
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{
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switch (ir.Event.KeyEvent.wVirtualKeyCode)
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{
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case VK_F1:
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c = F1;
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break;
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case VK_F4:
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if (sk & ALTKEY)
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c = ALT_F4;
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else if (sk & CTRLKEY)
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c = CTRL_F4;
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else
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c = F4;
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case VK_F10:
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c = F10;
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break;
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case VK_UP:
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c = UP;
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break;
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case VK_DOWN:
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c = DN;
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break;
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case VK_LEFT:
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c = BS;
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break;
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case VK_RIGHT:
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c = FWD;
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break;
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case VK_INSERT:
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c = INS;
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break;
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case VK_DELETE:
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c = DEL;
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break;
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case VK_HOME:
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c = HOME;
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break;
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case VK_END:
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c = END;
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break;
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case VK_PRIOR:
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c = PGUP;
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break;
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case VK_NEXT:
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c = PGDN;
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break;
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default:
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return;
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}
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}
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else
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{
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/* special handling of SHIFT+TAB */
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if (ir.Event.KeyEvent.uChar.AsciiChar == VK_TAB &&
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(ir.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED))
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c = SHIFT_HT;
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else
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c = ir.Event.KeyEvent.uChar.AsciiChar;
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}
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PostEvent (KEYBOARD, c, sk);
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}
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else if (ir.EventType == MOUSE_EVENT)
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{
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/* handle mouse events */
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if (ir.Event.MouseEvent.dwEventFlags == MOUSE_MOVED)
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{
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PostEvent (MOUSE_MOVED,
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ir.Event.MouseEvent.dwMousePosition.X,
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ir.Event.MouseEvent.dwMousePosition.Y);
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}
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else if (ir.Event.MouseEvent.dwEventFlags == DOUBLE_CLICK)
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{
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if (ir.Event.MouseEvent.dwButtonState ==
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FROM_LEFT_1ST_BUTTON_PRESSED)
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{
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PostEvent (DOUBLE_CLICK,
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ir.Event.MouseEvent.dwMousePosition.X,
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ir.Event.MouseEvent.dwMousePosition.Y);
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}
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}
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else if (ir.Event.MouseEvent.dwEventFlags == 0)
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{
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/* single click */
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if (ir.Event.MouseEvent.dwButtonState ==
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FROM_LEFT_1ST_BUTTON_PRESSED)
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{
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PostEvent (LEFT_BUTTON,
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ir.Event.MouseEvent.dwMousePosition.X,
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ir.Event.MouseEvent.dwMousePosition.Y);
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}
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else if (ir.Event.MouseEvent.dwButtonState ==
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RIGHTMOST_BUTTON_PRESSED)
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{
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PostEvent (RIGHT_BUTTON,
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ir.Event.MouseEvent.dwMousePosition.X,
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ir.Event.MouseEvent.dwMousePosition.Y);
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}
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else if (ir.Event.MouseEvent.dwButtonState == 0)
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{
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PostEvent (DFM_BUTTON_RELEASED,
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ir.Event.MouseEvent.dwMousePosition.X,
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ir.Event.MouseEvent.dwMousePosition.Y);
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}
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}
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}
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}
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/* ----- post a message and parameters to msg queue ---- */
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void DfPostMessage(DFWINDOW wnd, DFMESSAGE msg, PARAM p1, PARAM p2)
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{
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if (msg == ENDDIALOG)
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{
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msg++;
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--msg;
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}
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if (MsgQueueCtr != MAXMESSAGES)
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{
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MsgQueue[MsgQueueOnCtr].wnd = wnd;
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MsgQueue[MsgQueueOnCtr].msg = msg;
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MsgQueue[MsgQueueOnCtr].p1 = p1;
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MsgQueue[MsgQueueOnCtr].p2 = p2;
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if (++MsgQueueOnCtr == MAXMESSAGES)
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MsgQueueOnCtr = 0;
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MsgQueueCtr++;
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}
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}
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/* --------- send a message to a window ----------- */
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int DfSendMessage(DFWINDOW wnd, DFMESSAGE msg, PARAM p1, PARAM p2)
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{
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int rtn = TRUE, x, y;
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#ifdef INCLUDE_LOGGING
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LogMessages(wnd, msg, p1, p2);
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#endif
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if (wnd != NULL)
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switch (msg) {
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case PAINT:
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case BORDER:
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/* ------- don't send these messages unless the
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window is visible -------- */
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if (isVisible(wnd))
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rtn = (*wnd->wndproc)(wnd, msg, p1, p2);
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break;
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case RIGHT_BUTTON:
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case LEFT_BUTTON:
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case DOUBLE_CLICK:
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case DFM_BUTTON_RELEASED:
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/* --- don't send these messages unless the
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window is visible or has captured the mouse -- */
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if (isVisible(wnd) || wnd == CaptureMouse)
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rtn = (*wnd->wndproc)(wnd, msg, p1, p2);
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break;
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case KEYBOARD:
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case SHIFT_CHANGED:
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/* ------- don't send these messages unless the
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window is visible or has captured the keyboard -- */
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if (!(isVisible(wnd) || wnd == CaptureKeyboard))
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break;
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default:
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rtn = (*wnd->wndproc)(wnd, msg, p1, p2);
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break;
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}
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/* ----- window processor returned true or the message was sent
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to no window at all (NULL) ----- */
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if (rtn != FALSE) {
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/* --------- process messages that a window sends to the
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system itself ---------- */
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switch (msg) {
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case DFM_STOP:
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StopMsg();
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break;
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/* ------- clock messages --------- */
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case CAPTURE_CLOCK:
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Cwnd = wnd;
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set_timer(clocktimer, 0);
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break;
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case RELEASE_CLOCK:
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Cwnd = NULL;
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disable_timer(clocktimer);
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break;
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/* -------- keyboard messages ------- */
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case KEYBOARD_CURSOR:
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if (wnd == NULL)
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cursor((int)p1, (int)p2);
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else if (wnd == inFocus)
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cursor(GetClientLeft(wnd)+(int)p1,
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GetClientTop(wnd)+(int)p2);
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break;
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case CAPTURE_KEYBOARD:
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if (p2)
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((DFWINDOW)p2)->PrevKeyboard=CaptureKeyboard;
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else
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wnd->PrevKeyboard = CaptureKeyboard;
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CaptureKeyboard = wnd;
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NoChildCaptureKeyboard = (int)p1;
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break;
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case RELEASE_KEYBOARD:
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if (wnd != NULL)
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{
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if (CaptureKeyboard == wnd || (int)p1)
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CaptureKeyboard = wnd->PrevKeyboard;
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else
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{
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DFWINDOW twnd = CaptureKeyboard;
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while (twnd != NULL)
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{
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if (twnd->PrevKeyboard == wnd)
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{
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twnd->PrevKeyboard = wnd->PrevKeyboard;
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break;
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}
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twnd = twnd->PrevKeyboard;
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}
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if (twnd == NULL)
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CaptureKeyboard = NULL;
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}
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wnd->PrevKeyboard = NULL;
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}
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else
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CaptureKeyboard = NULL;
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NoChildCaptureKeyboard = FALSE;
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break;
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case CURRENT_KEYBOARD_CURSOR:
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curr_cursor(&x, &y);
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*(int*)p1 = x;
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*(int*)p2 = y;
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break;
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case SAVE_CURSOR:
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savecursor();
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break;
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case RESTORE_CURSOR:
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restorecursor();
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break;
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case HIDE_CURSOR:
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normalcursor();
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hidecursor();
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break;
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case SHOW_CURSOR:
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if (p1)
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set_cursor_size(100);
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else
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set_cursor_size(5);
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unhidecursor();
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break;
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case CAPTURE_MOUSE:
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if (p2)
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((DFWINDOW)p2)->PrevMouse = CaptureMouse;
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else
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wnd->PrevMouse = CaptureMouse;
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CaptureMouse = wnd;
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NoChildCaptureMouse = (int)p1;
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break;
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case RELEASE_MOUSE:
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if (wnd != NULL)
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{
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if (CaptureMouse == wnd || (int)p1)
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CaptureMouse = wnd->PrevMouse;
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else
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{
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DFWINDOW twnd = CaptureMouse;
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while (twnd != NULL)
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{
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if (twnd->PrevMouse == wnd)
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{
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twnd->PrevMouse = wnd->PrevMouse;
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break;
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}
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twnd = twnd->PrevMouse;
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}
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if (twnd == NULL)
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CaptureMouse = NULL;
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}
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wnd->PrevMouse = NULL;
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}
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else
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CaptureMouse = NULL;
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NoChildCaptureMouse = FALSE;
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break;
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default:
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break;
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}
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}
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return rtn;
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}
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static DFRECT VisibleRect(DFWINDOW wnd)
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{
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DFRECT rc = WindowRect(wnd);
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if (!TestAttribute(wnd, NOCLIP))
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{
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DFWINDOW pwnd = GetParent(wnd);
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DFRECT prc;
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prc = ClientRect(pwnd);
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while (pwnd != NULL)
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{
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if (TestAttribute(pwnd, NOCLIP))
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break;
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rc = subRectangle(rc, prc);
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if (!ValidRect(rc))
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break;
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if ((pwnd = GetParent(pwnd)) != NULL)
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prc = ClientRect(pwnd);
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}
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}
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return rc;
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}
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/* ----- find window that mouse coordinates are in --- */
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static DFWINDOW inWindow(DFWINDOW wnd, int x, int y)
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{
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DFWINDOW Hit = NULL;
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while (wnd != NULL) {
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if (isVisible(wnd)) {
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DFWINDOW wnd1;
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DFRECT rc = VisibleRect(wnd);
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if (InsideRect(x, y, rc))
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Hit = wnd;
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if ((wnd1 = inWindow(LastWindow(wnd), x, y)) != NULL)
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Hit = wnd1;
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if (Hit != NULL)
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break;
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}
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wnd = PrevWindow(wnd);
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}
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return Hit;
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}
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static DFWINDOW MouseWindow(int x, int y)
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{
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/* get the window in which a mouse event occurred */
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DFWINDOW Mwnd = inWindow(ApplicationWindow, x, y);
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/* ---- process mouse captures ----- */
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if (CaptureMouse != NULL)
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{
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if (NoChildCaptureMouse ||
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Mwnd == NULL ||
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!isAncestor(Mwnd, CaptureMouse))
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Mwnd = CaptureMouse;
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}
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return Mwnd;
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}
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void handshake(void)
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{
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handshaking++;
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DfDispatchMessage ();
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--handshaking;
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}
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/* ---- dispatch messages to the message proc function ---- */
|
|
BOOL DfDispatchMessage (void)
|
|
{
|
|
DFWINDOW Mwnd, Kwnd;
|
|
|
|
/* -------- collect mouse and keyboard events ------- */
|
|
collect_events();
|
|
|
|
/* --------- dequeue and process events -------- */
|
|
while (EventQueueCtr > 0)
|
|
{
|
|
struct events ev;
|
|
|
|
ev = EventQueue[EventQueueOffCtr];
|
|
if (++EventQueueOffCtr == MAXMESSAGES)
|
|
EventQueueOffCtr = 0;
|
|
--EventQueueCtr;
|
|
|
|
/* get the window in which a keyboard event occurred */
|
|
Kwnd = inFocus;
|
|
|
|
/* process keyboard captures */
|
|
if (CaptureKeyboard != NULL)
|
|
{
|
|
if (Kwnd == NULL ||
|
|
NoChildCaptureKeyboard ||
|
|
!isAncestor(Kwnd, CaptureKeyboard))
|
|
Kwnd = CaptureKeyboard;
|
|
}
|
|
|
|
/* send mouse and keyboard messages to the
|
|
window that should get them */
|
|
switch (ev.event)
|
|
{
|
|
case SHIFT_CHANGED:
|
|
case KEYBOARD:
|
|
if (!handshaking)
|
|
DfSendMessage(Kwnd, ev.event, ev.mx, ev.my);
|
|
break;
|
|
|
|
case LEFT_BUTTON:
|
|
if (!handshaking)
|
|
{
|
|
Mwnd = MouseWindow(ev.mx, ev.my);
|
|
if (!CaptureMouse ||
|
|
(!NoChildCaptureMouse &&
|
|
isAncestor(Mwnd, CaptureMouse)))
|
|
{
|
|
if (Mwnd != inFocus)
|
|
DfSendMessage(Mwnd, SETFOCUS, TRUE, 0);
|
|
DfSendMessage(Mwnd, LEFT_BUTTON, ev.mx, ev.my);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case DFM_BUTTON_RELEASED:
|
|
case DOUBLE_CLICK:
|
|
case RIGHT_BUTTON:
|
|
if (handshaking)
|
|
break;
|
|
|
|
case MOUSE_MOVED:
|
|
Mwnd = MouseWindow(ev.mx, ev.my);
|
|
DfSendMessage(Mwnd, ev.event, ev.mx, ev.my);
|
|
break;
|
|
|
|
case CLOCKTICK:
|
|
DfSendMessage(Cwnd, ev.event, ev.mx, ev.my);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* ------ dequeue and process messages ----- */
|
|
while (MsgQueueCtr > 0)
|
|
{
|
|
struct msgs mq;
|
|
|
|
mq = MsgQueue[MsgQueueOffCtr];
|
|
|
|
if (++MsgQueueOffCtr == MAXMESSAGES)
|
|
MsgQueueOffCtr = 0;
|
|
--MsgQueueCtr;
|
|
|
|
DfSendMessage (mq.wnd, mq.msg, mq.p1, mq.p2);
|
|
if (mq.msg == ENDDIALOG)
|
|
return FALSE;
|
|
|
|
if (mq.msg == DFM_STOP)
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* EOF */
|