LRESULT CALLBACK
viewproc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static int oldx = 0;
static int oldy = 0;
int x = (signed short) LOWORD(lParam);
int y = (signed short) HIWORD(lParam);
switch (message)
{
case WM_SIZE:
if (wParam == SIZE_MINIMIZED)
return 0;
if (wParam == SIZE_MAXIMIZED)
gapp.shrinkwrap = 0;
pdfapp_onresize(&gapp, LOWORD(lParam), HIWORD(lParam));
break;
/* Paint events are low priority and automagically catenated
* so we don't need to do any fancy waiting to defer repainting.
*/
case WM_PAINT:
{
//puts("WM_PAINT");
PAINTSTRUCT ps;
hdc = BeginPaint(hwnd, &ps);
winblit();
hdc = NULL;
EndPaint(hwnd, &ps);
pdfapp_postblit(&gapp);
return 0;
}
case WM_ERASEBKGND:
return 1; // well, we don't need to erase to redraw cleanly
/* Mouse events */
case WM_LBUTTONDOWN:
SetFocus(hwndview);
oldx = x; oldy = y;
handlemouse(x, y, 1, 1);
return 0;
case WM_MBUTTONDOWN:
SetFocus(hwndview);
oldx = x; oldy = y;
handlemouse(x, y, 2, 1);
return 0;
case WM_RBUTTONDOWN:
SetFocus(hwndview);
oldx = x; oldy = y;
handlemouse(x, y, 3, 1);
return 0;
case WM_LBUTTONUP:
oldx = x; oldy = y;
handlemouse(x, y, 1, -1);
return 0;
case WM_MBUTTONUP:
oldx = x; oldy = y;
handlemouse(x, y, 2, -1);
return 0;
case WM_RBUTTONUP:
oldx = x; oldy = y;
handlemouse(x, y, 3, -1);
return 0;
case WM_MOUSEMOVE:
oldx = x; oldy = y;
handlemouse(x, y, 0, 0);
return 0;
/* Mouse wheel */
case WM_MOUSEWHEEL:
if ((signed short)HIWORD(wParam) > 0)
handlekey(LOWORD(wParam) & MK_SHIFT ? '+' : 'k');
else
handlekey(LOWORD(wParam) & MK_SHIFT ? '-' : 'j');
return 0;
/* Timer */
case WM_TIMER:
if (wParam == OUR_TIMER_ID && timer_pending && gapp.presentation_mode)
{
timer_pending = 0;
handlekey(VK_RIGHT + 256);
handlemouse(oldx, oldy, 0, 0); /* update cursor */
return 0;
}
break;
/* Keyboard events */
case WM_KEYDOWN:
/* only handle special keys */
switch (wParam)
{
case VK_F1:
case VK_LEFT:
case VK_UP:
case VK_PRIOR:
case VK_RIGHT:
case VK_DOWN:
case VK_NEXT:
case VK_ESCAPE:
handlekey(wParam + 256);
handlemouse(oldx, oldy, 0, 0); /* update cursor */
return 0;
}
return 1;
/* unicode encoded chars, including escape, backspace etc... */
case WM_CHAR:
if (wParam < 256)
{
handlekey(wParam);
handlemouse(oldx, oldy, 0, 0); /* update cursor */
}
return 0;
}
fflush(stdout);
/* Pass on unhandled events to Windows */
return DefWindowProc(hwnd, message, wParam, lParam);
}
int TextInput( int x, int y, const char *prompt, int maxlen, int fieldlen, VString *strres, void (*handlekey)( int key, VString &s, int &pos ) )
{
int res = 0;
int insert = 1;
VString str = *strres;
VString tmp;
int ch;
ScrollPos scroll;
scroll.set_min_max( 0, str_len( str ) );
scroll.set_pagesize( fieldlen );
scroll.go( str_len(str) );
int show = 1;
int firsthit = 1;
int opage = -1;
con_cshow();
while(1)
{
if (opage != scroll.page()) show = 1;
if (show)
{
str_copy( tmp, str, scroll.page(), scroll.pagesize() );
str_pad( tmp, -scroll.pagesize() );
tmp = " " + tmp + " ";
if ( scroll.page() > 0 ) str_set_ch( tmp, 0, '<' );
if ( scroll.page()+scroll.pagesize() < str_len(str) ) str_set_ch( tmp, str_len(tmp)-1, '>' );
con_out(x, y, tmp, firsthit ? EditStrFH : EditStrBF );
show = 0;
opage = scroll.page();
}
con_xy( x + scroll.pos() - scroll.page() + 1 , y );
ch = con_getch();
if( ch >= 32 && ch <= 255 && ch != KEY_BACKSPACE && str_len(str) < maxlen - 1 )
{
if (firsthit)
{
str = "";
scroll.go(0);
firsthit = 0;
}
if (!insert) str_del( str, scroll.pos(), 1 );
str_ins_ch( str, scroll.pos(), ch );
scroll.set_min_max( 0, str_len( str ) );
scroll.go( scroll.pos() );
scroll.down();
show = 1;
};
if (firsthit)
{
show = 1;
firsthit = 0;
}
if( ch == 27 )
{
res = 0;
break;
} else
if( ch == 13 )
{
*strres = str;
res = 1;
break;
} else
if( ch == KEY_CTRL_U )
{
scroll.go(0);
str = "";
show = 1;
} else
if( (ch == KEY_BACKSPACE || ch == 8 ) && (scroll.pos() > 0) )
{
scroll.up();
str_del( str, scroll.pos(), 1 );
show = 1;
} else
if ( ch == KEY_IC ) insert = !insert; else
if ( ch == KEY_LEFT ) scroll.up(); else
if ( ch == KEY_RIGHT ) scroll.down(); else
/*
if ( ch == KEY_PPAGE ) scroll.ppage(); else
if ( ch == KEY_NPAGE ) scroll.npage(); else
*/
if ( ch == KEY_HOME || ch == KEY_CTRL_A ) scroll.go(0); else
if ( ch == KEY_END || ch == KEY_CTRL_E ) scroll.go(str_len(str)); else
if ( ( ch == KEY_DC || ch == KEY_CTRL_D ) && scroll.pos() < str_len(str) )
{
str_del( str, scroll.pos(), 1 );
show = 1;
} else
if ( handlekey )
{
int npos = scroll.pos();
handlekey( ch, str, npos );
scroll.set_min_max( 0, str_len( str ) );
scroll.go( scroll.pos() );
if (scroll.pos() != npos) scroll.go( npos );
show = 1;
}
scroll.set_min_max( 0, str_len( str ) );
scroll.go( scroll.pos() );
}
con_chide();
return res;
}
