EVENT uigadgetfilter( EVENT ev, p_gadget g )
{
int m_anchor, m_linear;
int tmp;
EVENT newev;
ORD start;
int length;
int pos = 0;
if( uimouseinstalled() ) {
uiunprotect( g->win );
uimousepos( g->win, &m_anchor, &m_linear );
uiprotect( g->win );
if( g->dir == VERTICAL ) {
tmp = m_linear;
m_linear = m_anchor;
m_anchor = tmp;
}
if( ( ev == EV_MOUSE_PRESS ) || ( ev == EV_MOUSE_DCLICK ) ) {
if( ( m_anchor != g->anchor ) || ( m_linear < g->start ) ||
( m_linear > g->end ) || ( Pressed != NULL ) ) {
return( ev );
} else {
Pressed = g;
}
}
/* ignore everything if the gadget was not pressed */
if( Pressed != g ) return( ev );
length = g->end - g->start - 1;
/* don't send pagefoward followed by pagebackward, then forward */
/* ignore non-mouse events */
switch( ev ) {
case EV_MOUSE_PRESS :
StartPos = g->pos;
case EV_MOUSE_DCLICK :
RepeatEvent = EV_NO_EVENT;
case EV_MOUSE_REPEAT :
if( Drag ) {
break;
}
if( m_linear == g->start ) {
return( g->backward );
}
if( m_linear == g->end ) {
return( g->forward );
}
/* don't do page up and page down when total size is less than
or equal to the page size */
if( g->total_size <= g->page_size ) break;
start = g->linear; //CalcStart( g, g->pos, length );
if( m_linear < start ) {
if( RepeatEvent == g->pageforward ) {
return( EV_NO_EVENT );
} else {
RepeatEvent = g->pagebackward;
return( g->pagebackward );
}
}
if( m_linear > start ) {
if( RepeatEvent == g->pagebackward ) {
return( EV_NO_EVENT );
} else {
RepeatEvent = g->pageforward;
return( g->pageforward );
}
}
break;
case EV_MOUSE_DRAG :
/* don't do draging if total_size is less than or equal to the
page size or mouse is too far from gadget */
if( ( m_anchor < ( g->anchor -1 ) ) || ( m_anchor > (g->anchor+1) ) ||
( g->total_size <= g->page_size ) ) {
return( EV_NO_EVENT );
} else {
Drag = TRUE; /* so we don't send page events on MOUSE_REPEAT */
if( g->slider == EV_NO_EVENT ) {
return( EV_NO_EVENT );
}
}
case EV_MOUSE_RELEASE :
if( Pressed == NULL ) {
break;
}
if( g->slider == EV_NO_EVENT ) {
Drag = FALSE;
}
if( Drag ) {
if( ( m_anchor < ( g->anchor -1 ) ) || ( m_anchor > (g->anchor+1) ) ) {
/* note : must have got EV_MOUSE_RELEASE */
pos = StartPos;
setgadget( g, pos, FALSE );
m_linear = g->linear;
Drag = FALSE;
} else {
/* mouse drag to first scroll character or further left,
so pos = 0 */
if( m_linear <= ( g->start + 1 ) ) {
m_linear = g->start + 1;
pos = 0;
} else {
/* mouse drag to last scroll character or further right,
so pos = total_size */
if( m_linear >= ( g->end - 1 ) ) {
m_linear = g->end - 1;
pos = g->total_size - g->page_size;
} else {
pos = (int)((long)( m_linear - g->start ) *
(long)( g->total_size - g->page_size ) /
(long)length);
}
}
}
g->linear = m_linear;
uidrawgadget( g );
}
if( ( ev == EV_MOUSE_RELEASE ) || ( g->flags & GADGET_TRACK ) ) {
if( Drag ) {
StartPos = pos;
g->pos = pos;
g->linear = m_linear;
setlinear( g );
if( g->linear < m_linear ) {
g->pos++;
setlinear( g );
}
if( g->linear > m_linear ) {
g->pos--;
setlinear( g );
}
newev = g->slider;
} else {
newev = EV_NO_EVENT;
}
if( ev == EV_MOUSE_RELEASE ) {
Drag = FALSE;
Pressed = NULL;
}
} else {
newev = EV_NO_EVENT;
}
return( newev );
case EV_MOUSE_HOLD :
break;
default :
return( ev );
}
} else {
return( ev );
}
return( EV_NO_EVENT );
}
bool GUIProcessEvent( EVENT ev )
{
gui_event gui_ev;
ORD row, col;
gui_window *wnd;
int prev;
int diff;
gui_ctl_id id;
gui_window *menu_window;
bool new_curr_wnd;
VSCREEN *screen;
// this is processed before all others and signals the end for all
// GUI UI windows ( unconditional )
if( ev == EV_KILL_UI ) {
GUIDestroyWnd( NULL );
return( false );
}
ev = MapMiddleToRight( ev );
ev = CheckPrevEvent( ev );
wnd = NULL;
if( uimouseinstalled() ) {
screen = uivmousepos( NULL, &row, &col );
if( screen != NULL && (screen->flags & V_GUI_WINDOW) != 0 ) {
wnd = (gui_window *)((char *)screen - offsetof( gui_window, screen ));
}
}
if( GUIDoKeyboardMoveResize( ev ) ) {
return( true );
}
if( MouseState == MOUSE_MOVE || MouseState == MOUSE_SIZE ) {
if( GUIDoMoveResizeCheck( GUIMouseWnd, ev, row, col ) ) {
MouseState = MOUSE_FREE;
return( true );
}
if( GUI_WND_MINIMIZED( GUIMouseWnd ) ) {
switch( ev ) {
case EV_MOUSE_DCLICK :
case EV_MOUSE_RELEASE :
case EV_MOUSE_DRAG :
ProcessMinimizedMouseEvent( ev, row, col );
}
} else {
switch( ev ) {
case EV_MOUSE_RELEASE :
case EV_MOUSE_DRAG :
case EV_MOUSE_DRAG_R :
ProcessMouseReleaseDrag( ev, GUI_LBUTTONUP, row, col );
}
}
return( true );
}
new_curr_wnd = SetCurrWnd( ev, wnd );
if( GUIProcessAltMenuEvent( ev ) ) {
return( true );
}
/* Only deal with press and dclick events for minimized windows.
* All other non-menu events are ingored.
*/
if( !IS_CTLEVENT( ev ) && ( GUICurrWnd != NULL ) && GUI_WND_MINIMIZED( GUICurrWnd ) ) {
/* ignore event if mouse not in minimized current window */
if( GUICurrWnd == wnd ) {
switch( ev ) {
case EV_MOUSE_PRESS :
case EV_MOUSE_DCLICK :
case EV_MOUSE_RELEASE :
GUIMouseWnd = GUICurrWnd;
ProcessMinimizedMouseEvent( ev, row, col );
break;
}
}
return( true );
}
if( !IS_CTLEVENT( ev ) && ( GUICurrWnd != NULL ) && GUIIsOpen( GUICurrWnd ) ) {
/* see if any of the controls in the window consume the event */
ev = GUIProcessControlEvent( GUICurrWnd, ev, row, col );
/* See if the event is for on of the scroll bars. */
/* Diff and prev are used if the event return is */
/* EV_SCROLL_HORIZONTAL or EV_SCROLL_VERTICAL. */
if( !new_curr_wnd || ( GUIGetWindowStyles() & ( GUI_INACT_GADGETS+GUI_INACT_SAME ) ) ) {
ev = GUIGadgetFilter( GUICurrWnd, ev, &prev, &diff );
}
if( ev == EV_NO_EVENT ) {
return( true );
}
}
gui_ev = GUI_NO_EVENT;
ev = GUIMapKeys( ev );
switch( ev ) {
case EV_MOUSE_DCLICK_R :
ProcessMousePos( GUI_RBUTTONDBLCLK, row, col, wnd );
return( true );
break;
case EV_MOUSE_RELEASE_R :
ProcessMouseReleaseDrag( ev, GUI_RBUTTONUP, row, col );
return( true );
break;
case EV_MOUSE_DRAG_R :
if( GUICurrWnd != GUIMouseWnd ) {
/* got drag without press first */
ProcessMousePress( EV_MOUSE_PRESS_R, GUI_LBUTTONDOWN, row, col,
new_curr_wnd );
}
case EV_MOUSE_MOVE :
ProcessMousePos( GUI_MOUSEMOVE, row, col, wnd );
return( true );
break;
case EV_MOUSE_RELEASE :
ProcessMouseReleaseDrag( ev, GUI_LBUTTONUP, row, col );
return( true );
break;
case EV_MOUSE_DRAG :
if( GUICurrWnd != GUIMouseWnd ) {
/* got drag without press first */
ProcessMousePress( EV_MOUSE_PRESS, GUI_LBUTTONDOWN, row, col,
new_curr_wnd );
}
ProcessMouseReleaseDrag( ev, GUI_MOUSEMOVE, row, col );
return( true );
break;
case EV_MOUSE_PRESS_R :
ProcessMousePress( ev, GUI_RBUTTONDOWN, row, col, new_curr_wnd );
return( true );
break;
case EV_MOUSE_PRESS :
ProcessMousePress( ev, GUI_LBUTTONDOWN, row, col, new_curr_wnd );
return( true );
break;
case EV_MOUSE_DCLICK :
ProcessMousePress( ev, GUI_LBUTTONDBLCLK, row, col, new_curr_wnd );
return( true );
break;
case EV_NO_EVENT :
gui_ev = GUI_NO_EVENT;
break;
case EV_SCROLL_UP :
case EV_SCROLL_DOWN :
case EV_SCROLL_PAGE_UP :
case EV_SCROLL_PAGE_DOWN :
case EV_SCROLL_LEFT :
case EV_SCROLL_RIGHT :
case EV_SCROLL_LEFT_PAGE :
case EV_SCROLL_RIGHT_PAGE :
if( GUICurrWnd != NULL ) {
ProcessScrollEvent( ev );
return( true );
}
break;
case EV_SCROLL_VERTICAL :
if( GUI_VSCROLL_EVENTS_SET( GUICurrWnd ) ) {
DoScrollDrag( GUICurrWnd->vgadget, prev, diff );
} else {
GUIWholeWndDirty( GUICurrWnd );
}
return( true );
break;
case EV_SCROLL_HORIZONTAL :
if( GUI_HSCROLL_EVENTS_SET( GUICurrWnd ) ) {
DoScrollDrag( GUICurrWnd->hgadget, prev, diff );
} else {
GUIWholeWndDirty( GUICurrWnd );
}
return( true );
break;
case EV_MENU_INITPOPUP :
ProcessInitPopupEvent();
return( true );
break;
#if 0
case EV_BACKGROUND_RESIZE :
{
gui_window *root;
root = GUIGetRootWindow();
if( root != NULL ) {
GUIZoomWnd( root, GUI_NONE );
}
}
return( true );
break;
#endif
default :
if( IS_CTLEVENT( ev ) ) {
if( !GUIMDIProcessEvent( ev ) ) {
menu_window = GUIGetMenuWindow();
if( menu_window != NULL ) {
id = EV2ID( ev );
GUIEVENTWND( menu_window, GUI_CLICKED, &id );
}
}
return( true );
}
break;
}
if( ( GUICurrWnd != NULL ) && (gui_ev != GUI_NO_EVENT ) ) {
GUIEVENTWND( GUICurrWnd, gui_ev, NULL );
}
return( true );
}
