/* ---------------------------------------------------------------------
* ComboboxShowDropdown
* Display dropdown window
* ---------------------------------------------------------------------
*/
static void
ComboboxShowDropdown(CUIWINDOW* win, COMBOBOXDATA* data, int capture)
{
CUIWINDOW* listbox;
CUIRECT rc;
int height;
WindowGetWindowRect(win, &rc);
height = ((data->NumItems + 2) > data->Height) ? data->Height : (data->NumItems + 2);
if ((LINES - rc.Y) > height)
{
listbox = WindowNew(win, rc.X, rc.Y + 1, rc.W, height,
CWS_POPUP | CWS_BORDER | CWS_TABSTOP);
}
else if (rc.Y > (LINES / 2))
{
if (height > (rc.Y - 1))
{
height = rc.Y - 1;
}
listbox = WindowNew(win, rc.X, rc.Y - height - 1, rc.W, height,
CWS_POPUP | CWS_BORDER | CWS_TABSTOP);
}
else
{
if (height > (LINES - rc.Y - 1))
{
height = LINES - rc.Y - 1;
}
listbox = WindowNew(win, rc.X, rc.Y + 1, rc.W, height,
CWS_POPUP | CWS_BORDER | CWS_TABSTOP);
}
listbox->Class = _T("CBDROPDOWN");
WindowSetPaintHook(listbox, CbDropdownPaintHook);
WindowSetKeyHook(listbox, CbDropdownKeyHook);
WindowSetMButtonHook(listbox, CbDropdownMButtonHook);
WindowSetVScrollHook(listbox, CbDropdownVScrollHook);
WindowSetSizeHook(listbox, CbDropdownSizeHook);
WindowSetSetFocusHook(listbox, CbDropdownSetFocusHook);
WindowSetKillFocusHook(listbox, CbDropdownKillFocusHook);
WindowEnableVScroll(listbox, TRUE);
listbox->InstData = (void*) data;
data->SelIndex = data->CtrlSelIndex;
data->MouseDown = capture;
data->DropdownState = TRUE;
data->CloseKey = 0;
if (height > 0)
{
WindowCreate(listbox);
if (capture)
{
WindowSetCapture(listbox);
}
WindowModal(listbox);
WindowReleaseCapture();
}
WindowDestroy(listbox);
data->DropdownState = FALSE;
ComboboxUpdate(win);
switch(data->CloseKey)
{
case KEY_TAB:
case KEY_RIGHT:
WindowFocusNext(win->Parent);
break;
case KEY_LEFT:
WindowFocusPrevious(win->Parent);
break;
}
}
/* ---------------------------------------------------------------------
* CbDropdownMButtonHook
* Button mouse click hook
* ---------------------------------------------------------------------
*/
static void
CbDropdownMButtonHook(void* w, int x, int y, int flags)
{
CUIWINDOW* win = (CUIWINDOW*) w;
COMBOBOXDATA* data = (COMBOBOXDATA*) win->InstData;
if ((flags & BUTTON1_CLICKED) || (flags & BUTTON1_DOUBLE_CLICKED))
{
int offsy = WindowGetVScrollPos(win);
int nochange = FALSE;
y += offsy;
WindowReleaseCapture();
if ((y != data->SelIndex) && (y < data->NumItems))
{
if (CbDropdownQueryChange(win, data))
{
data->SelIndex = y;
CbDropdownUpdate(win);
CbDropdownNotifyChange(win, data);
}
else
{
nochange = TRUE;
}
}
/* only execute clicked hook, if change was not rejected
by the application */
if (!nochange)
{
if (data->SelIndex != data->CtrlSelIndex)
{
if (ComboboxQueryChange(data->Ctrl, data))
{
data->CtrlSelIndex = data->SelIndex;
ComboboxNotifyChange(data->Ctrl, data);
}
}
data->CloseKey = KEY_SPACE;
WindowClose(win, IDOK);
}
}
else if (flags & BUTTON1_PRESSED)
{
data->MouseDown = TRUE;
WindowSetCapture(win);
}
else if ((flags & BUTTON1_RELEASED) && (data->MouseDown))
{
CUIRECT rc;
int nochange = FALSE;
WindowGetClientRect(win, &rc);
data->MouseDown = FALSE;
WindowReleaseCapture();
if ((x >= rc.X) && (x < (rc.X + rc.W)) &&
(y >= rc.Y) && (y < (rc.Y + rc.H)))
{
int offsy = WindowGetVScrollPos(win);
y += offsy;
if ((y != data->SelIndex) && (y < data->NumItems))
{
CbDropdownQueryChange(win, data);
data->SelIndex = y;
CbDropdownUpdate(win);
CbDropdownNotifyChange(win, data);
}
else
{
nochange = TRUE;
}
}
if (!nochange)
{
if (data->SelIndex != data->CtrlSelIndex)
{
if (ComboboxQueryChange(data->Ctrl, data))
{
data->CtrlSelIndex = data->SelIndex;
ComboboxNotifyChange(data->Ctrl, data);
}
}
data->CloseKey = KEY_SPACE;
WindowClose(win, IDOK);
}
}
}
/* ---------------------------------------------------------------------
* ListboxMButtonHook
* Button mouse click hook
* ---------------------------------------------------------------------
*/
static void
ListboxMButtonHook(void* w, int x, int y, int flags)
{
CUIWINDOW* win = (CUIWINDOW*) w;
LISTBOXDATA* data = (LISTBOXDATA*) win->InstData;
if ((flags & BUTTON1_CLICKED) || (flags & BUTTON1_DOUBLE_CLICKED))
{
int offsy = WindowGetVScrollPos(win);
int nochange = FALSE;
y += offsy;
WindowReleaseCapture();
if ((y != data->SelIndex) && (y < data->NumItems))
{
if (ListboxQueryChange(win, data))
{
data->SelIndex = y;
ListboxUpdate(win);
ListboxNotifyChange(win, data);
}
else
{
nochange = TRUE;
}
}
/* only execute clicked hook, if change was not rejected
by the application */
if (!nochange)
{
if ((flags & BUTTON1_DOUBLE_CLICKED) &&
(data->LbClickedHook))
{
data->LbClickedHook(data->LbClickedTarget, win);
}
}
}
else if (flags & BUTTON1_PRESSED)
{
data->MouseDown = TRUE;
WindowSetCapture(win);
}
else if ((flags & BUTTON1_RELEASED) && (data->MouseDown))
{
CUIRECT rc;
WindowGetClientRect(win, &rc);
data->MouseDown = FALSE;
WindowReleaseCapture();
if ((x >= rc.X) && (x < (rc.X + rc.W)) &&
(y >= rc.Y) && (y < (rc.Y + rc.H)))
{
int offsy = WindowGetVScrollPos(win);
y += offsy;
if ((y != data->SelIndex) && (y < data->NumItems))
{
ListboxQueryChange(win, data);
data->SelIndex = y;
ListboxUpdate(win);
ListboxNotifyChange(win, data);
}
}
}
}
