// Find window from coordinates
struct Window *WhichWindow(
struct Screen *screen,
short x,
short y,
unsigned short flags)
{
struct Layer *layer;
struct Window *window=0;
// Lock screen layerinfo
if (!(flags&WWF_NO_LOCK)) LockLayerInfo(&screen->LayerInfo);
// Find layer
if ((layer=WhichLayer(&screen->LayerInfo,x,y)))
{
// Get window pointer
window=layer->Window;
}
// Unlock if necessary
if (!(flags&WWF_NO_LOCK) && (!window || !(flags&WWF_LEAVE_LOCKED)))
UnlockLayerInfo(&screen->LayerInfo);
return window;
}
// Someone pressed the help key
void help_get_help(short x,short y,unsigned short qual)
{
struct Window *window=0;
struct Layer *layer;
IPCData *ipc=0;
// Lock screen layer
LockLayerInfo(&GUI->screen_pointer->LayerInfo);
// Find which layer the mouse is over
if ((layer=WhichLayer(&GUI->screen_pointer->LayerInfo,x,y)))
{
// Get window pointer
window=layer->Window;
// Get window ID
if (GetWindowID(window)!=WINDOW_UNKNOWN)
{
// Forbid to get port
Forbid();
// Get port
if (!(ipc=(IPCData *)GetWindowAppPort(window)))
Permit();
}
}
// Unlock layer
UnlockLayerInfo(&GUI->screen_pointer->LayerInfo);
// Got a port?
if (ipc)
{
ULONG coords;
// Convert coordinates to window-relative
x-=window->LeftEdge;
y-=window->TopEdge;
// Pack into longword
coords=((unsigned short)x<<16)|(unsigned short)y;
// Send help command
IPC_Command(ipc,IPC_HELP,qual,(APTR)coords,0,0);
// Enable multitasking now that message has been sent
Permit();
}
// Otherwise, show generic help
else help_show_help(HELP_MAIN,0);
}
void *ami_window_at_pointer(int type)
{
struct Layer *layer;
LockLayerInfo(&scrn->LayerInfo);
layer = WhichLayer(&scrn->LayerInfo, scrn->MouseX, scrn->MouseY);
UnlockLayerInfo(&scrn->LayerInfo);
if(layer) return ami_find_gwin_by_id(layer->Window, type);
else return NULL;
}
// Stop dragging a button
void buttons_stop_drag(Buttons *buttons,short x,short y)
{
struct Layer *layer;
struct Window *window;
ULONG id=0;
BOOL swap_local=0;
IPCData *ipc=0;
BOOL ok=0;
// Free drag info
FreeDragInfo(buttons->drag_info);
buttons->drag_info=0;
// Nothing selected now
buttons->editor_sel_col=-1;
buttons->editor_sel_row=-1;
buttons->button_sel_button=0;
IPC_Command(
buttons->editor,
BUTTONEDIT_SELECT_BUTTON,
-1,
(APTR)-1,
0,
0);
// Invalid coordinates?
if (x==-1 || y==-1) return;
// Lock layer
LockScreenLayer(buttons->window->WScreen);
// Find which layer we dropped it on
if (layer=WhichLayer(
&buttons->window->WScreen->LayerInfo,
x+buttons->window->LeftEdge,
y+buttons->window->TopEdge))
{
// Does layer have a window?
if ((window=layer->Window))
{
// Is it our own window?
if (window==buttons->window)
{
// Set flag to swap with local button
swap_local=1;
}
else
{
// Get window ID
id=GetWindowID(window);
// Forbid to get IPC
Forbid();
if (!(ipc=(IPCData *)GetWindowAppPort(window)))
Permit();
}
}
}
// Unlock layer
UnlockScreenLayer(buttons->window->WScreen);
// Got an IPC port?
if (ipc)
{
// Button editor or another button bank?
if (id==WINDOW_BUTTON_CONFIG || id==WINDOW_BUTTONS || id==WINDOW_FUNCTION_EDITOR)
{
Cfg_Button *button;
Point *pos;
// Store position (screen relative)
if (pos=AllocVec(sizeof(Point),0))
{
pos->x=x+buttons->window->LeftEdge;
pos->y=y+buttons->window->TopEdge;
}
// Copy current button
if (button=CopyButton(buttons->button_drag_button,0,-1))
{
// Send button
IPC_Command(ipc,BUTTONEDIT_CLIP_BUTTON,0,button,pos,0);
ok=1;
}
}
// Permit now we've sent the message
Permit();
}
// Swapping local buttons?
else
if (swap_local)
{
Cfg_Button *swap;
// Lock bank
GetSemaphore(&buttons->bank->lock,SEMF_SHARED,0);
// Get swap button
if (swap=button_from_point(buttons,&x,&y))
{
// Different button?
if (swap!=buttons->button_drag_button)
{
// Swap buttons
SwapListNodes(
&buttons->bank->buttons,
(struct Node *)buttons->button_drag_button,
(struct Node *)swap);
// Redraw buttons
buttons_show_button(
buttons,
swap,
buttons->drag_col,
buttons->drag_row,
swap->current,0);
buttons_show_button(
buttons,
buttons->button_drag_button,
x,
y,
buttons->button_drag_button->current,0);
buttons->flags|=BUTTONF_CHANGED;
}
}
// Unlock bank
FreeSemaphore(&buttons->bank->lock);
ok=1;
}
// Failed?
if (!ok) DisplayBeep(buttons->window->WScreen);
}
