Stephan Aßmus
588259b66d
* all cursors owned by a team are visually different, or (iaw) an already existing cursor is reused when it is set by the client again * changed various occurances of cursor data from "int8*" to "uint8*" * ServerCursors also remember the R5 data from which they were created * the reference counting and destruction of ServerCursors changed: The cursor knows it is attached to a CursorManager and one can simply use ServerCursor::Acquire() and Release() and the reference counting and everything is being taken care of * destroying a ViewLayer will now correctly release a set ServerCursor * fixed a race condition when setting a cursor through BView::SetViewCursor(): If the client code looks like this: BCursor cursor(cursorData); someView->SetViewCursor(&cursor, false); there is a relatively high chance the BCursor destructor told the ServerApp thread to destroy the cursor before the ServerWindow thread got to "acquire" the cursor for use by the view layer. The very same problem is likely the reason that SetViewCursor works to unreliably on R5, even when the "sync" flag is set to "true" (although it should theoretically work in that case). all these fixes make WonderBrush work fine again with the new support of custom cursors.... coded by axeld and myself (the joys of pair programming :-) git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16521 a95241bf-73f2-0310-859d-f6bbb57e9c96
116 lines
2.3 KiB
C++
116 lines
2.3 KiB
C++
/*
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* Copyright 2001-2006, Haiku.
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Frans van Nispen ([email protected])
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* Gabe Yoder ([email protected])
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* Axel Dörfler, [email protected]
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*/
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/** BCursor describes a view-wide or application-wide cursor. */
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/**
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@note: As BeOS only supports 16x16 monochrome cursors, and I would like
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to see a nice shadowes one, we will need to extend this one.
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*/
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#include <AppDefs.h>
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#include <Cursor.h>
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#include <CursorSet.h>
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#include <AppServerLink.h>
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#include <ServerProtocol.h>
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const BCursor *B_CURSOR_SYSTEM_DEFAULT;
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const BCursor *B_CURSOR_I_BEAM;
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// these are initialized in BApplication::InitData()
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BCursor::BCursor(const void *cursorData)
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:
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fServerToken(-1),
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fNeedToFree(false),
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fPendingViewCursor(false)
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{
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const uint8 *data = (const uint8 *)cursorData;
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if (data == B_HAND_CURSOR || data == B_I_BEAM_CURSOR) {
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// just use the default cursors from the app_server
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fServerToken = data == B_HAND_CURSOR ?
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B_CURSOR_DEFAULT : B_CURSOR_TEXT;
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return;
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}
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// Create a new cursor in the app_server
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if (data == NULL
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|| data[0] != 16 // size
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|| data[1] != 1 // depth
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|| data[2] >= 16 || data[3] >= 16) // hot-spot
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return;
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// Send data directly to server
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BPrivate::AppServerLink link;
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link.StartMessage(AS_CREATE_CURSOR);
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link.Attach(cursorData, 68);
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status_t status;
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if (link.FlushWithReply(status) == B_OK && status == B_OK) {
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link.Read<int32>(&fServerToken);
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fNeedToFree = true;
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}
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}
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BCursor::BCursor(BMessage *data)
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{
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// undefined on BeOS
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fServerToken = -1;
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fNeedToFree = false;
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fPendingViewCursor = false;
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}
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BCursor::~BCursor()
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{
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// Notify server to deallocate server-side objects for this cursor
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if (fNeedToFree) {
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BPrivate::AppServerLink link;
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link.StartMessage(AS_DELETE_CURSOR);
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link.Attach<int32>(fServerToken);
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link.Attach<bool>(fPendingViewCursor);
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link.Flush();
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}
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}
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status_t
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BCursor::Archive(BMessage *into, bool deep) const
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{
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// not implemented on BeOS
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return B_OK;
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}
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BArchivable *
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BCursor::Instantiate(BMessage *data)
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{
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// not implemented on BeOS
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return NULL;
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}
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status_t
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BCursor::Perform(perform_code d, void *arg)
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{
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return B_OK;
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}
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void BCursor::_ReservedCursor1() {}
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void BCursor::_ReservedCursor2() {}
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void BCursor::_ReservedCursor3() {}
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void BCursor::_ReservedCursor4() {}
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