haiku/src/servers/app/ServerWindow.cpp

2195 lines
59 KiB
C++
Raw Normal View History

//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, Haiku, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: ServerWindow.cpp
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Adi Oanca <adioanca@mymail.ro>
// Description: Shadow BWindow class
//
//------------------------------------------------------------------------------
#include <AppDefs.h>
#include <Rect.h>
#include <string.h>
#include <stdio.h>
#include <malloc.h>
#include <View.h>
#include <Message.h>
#include <GraphicsDefs.h>
#include <PortLink.h>
#include <ViewAux.h>
#include "AppServer.h"
#include "BGet++.h"
#include "DebugInfoManager.h"
#include "Desktop.h"
#include "Layer.h"
#include "RAMLinkMsgReader.h"
#include "RootLayer.h"
#include "ServerWindow.h"
#include "ServerApp.h"
#include "ServerProtocol.h"
#include "WinBorder.h"
#include "TokenHandler.h"
#include "Utils.h"
#include "DisplayDriver.h"
#include "ServerBitmap.h"
#include "ServerPicture.h"
#include "Workspace.h"
#include "MessagePrivate.h"
//#define DEBUG_SERVERWINDOW
//#define DEBUG_SERVERWINDOW_GRAPHICS
#ifdef DEBUG_SERVERWINDOW
# include <stdio.h>
# define STRACE(x) printf x
#else
# define STRACE(x) ;
#endif
#ifdef DEBUG_SERVERWINDOW_GRAPHICS
# include <stdio.h>
# define DTRACE(x) printf x
#else
# define DTRACE(x) ;
#endif
//------------------------------------------------------------------------------
template<class Type> Type
read_from_buffer(int8 **_buffer)
{
Type *typedBuffer = (Type *)(*_buffer);
Type value = *typedBuffer;
typedBuffer++;
*_buffer = (int8 *)(typedBuffer);
return value;
}
//------------------------------------------------------------------------------
/*
static int8 *read_pattern_from_buffer(int8 **_buffer)
{
int8 *pattern = *_buffer;
*_buffer += AS_PATTERN_SIZE;
return pattern;
}
*/
//------------------------------------------------------------------------------
template<class Type> void
write_to_buffer(int8 **_buffer, Type value)
{
Type *typedBuffer = (Type *)(*_buffer);
*typedBuffer = value;
typedBuffer++;
*_buffer = (int8 *)(typedBuffer);
}
//------------------------------------------------------------------------------
/*!
\brief Contructor
Does a lot of stuff to set up for the window - new decorator, new winborder, spawn a
monitor thread.
*/
ServerWindow::ServerWindow( const char *string,
ServerApp *winapp,
port_id winport,
port_id looperPort,
int32 handlerID)
: fServerApp(winapp),
// fClientWinPort is the port to which the app awaits messages from the server
fClientWinPort(winport),
fClientLooperPort(looperPort),
fClientViewsWithInvalidCoords(B_VIEW_RESIZED),
fHandlerToken(handlerID)
{
STRACE(("ServerWindow(%s)::ServerWindow()\n",string? string: "NULL"));
if (string)
{
int32 length = strlen(string);
strncpy(fName, string, (length+1) <= 50? (length+1): 50);
}
else
strcpy(fName, "Unnamed Window");
fClientTeamID = winapp->ClientTeamID();
fWinBorder = NULL;
cl = NULL; //current layer
// fMessagePort is the port to which the app sends messages for the server
fMessagePort = create_port(30,fName);
fMsgSender = new LinkMsgSender(fClientWinPort);
fMsgReader = new LinkMsgReader(fMessagePort);
// Send a reply to our window - it is expecting fMessagePort port.
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<port_id>(fMessagePort);
fMsgSender->Flush();
STRACE(("ServerWindow %s Created\n",fName));
}
//------------------------------------------------------------------------------
void ServerWindow::Init(BRect frame,
uint32 wlook, uint32 wfeel, uint32 wflags,
uint32 wwksindex)
{
char newName[60];
sprintf(newName, "%ld: %s", fClientTeamID, fName);
fWinBorder = new WinBorder( frame,
newName,
wlook,
wfeel,
wflags,
wwksindex,
this,
desktop->GetDisplayDriver());
// Spawn our message-monitoring thread
fMonitorThreadID = spawn_thread(MonitorWin, fName, B_NORMAL_PRIORITY, this);
if(fMonitorThreadID != B_NO_MORE_THREADS && fMonitorThreadID != B_NO_MEMORY)
resume_thread(fMonitorThreadID);
}
//------------------------------------------------------------------------------
//!Tears down all connections the main app_server objects, and deletes some internals.
ServerWindow::~ServerWindow(void)
{
STRACE(("*ServerWindow (%s):~ServerWindow()\n",fName));
if (fWinBorder)
{
delete fWinBorder;
fWinBorder = NULL;
}
cl = NULL;
if(fMsgSender)
{
delete fMsgSender;
fMsgSender=NULL;
}
if(fMsgReader)
{
delete fMsgReader;
fMsgReader=NULL;
}
STRACE(("#ServerWindow(%s) will exit NOW\n", fName));
}
//! Forces the window border to update its decorator
void ServerWindow::ReplaceDecorator(void)
{
if (!IsLocked())
debugger("you must lock a ServerWindow object before calling ::ReplaceDecorator()\n");
STRACE(("ServerWindow %s: Replace Decorator\n",fName));
fWinBorder->UpdateDecorator();
}
//------------------------------------------------------------------------------
//! Requests that the ServerWindow's BWindow quit
void ServerWindow::Quit(void)
{
// NOTE: if you do something else, other than sending a port message, PLEASE lock
STRACE(("ServerWindow %s: Quit\n",fName));
BMessage msg;
msg.what = B_QUIT_REQUESTED;
SendMessageToClient(&msg);
}
//------------------------------------------------------------------------------
//! Shows the window's WinBorder
void ServerWindow::Show(void)
{
// NOTE: if you do something else, other than sending a port message, PLEASE lock
STRACE(("ServerWindow %s: Show\n",fName));
if(!fWinBorder->IsHidden())
return;
fWinBorder->GetRootLayer()->ShowWinBorder(fWinBorder);
}
//------------------------------------------------------------------------------
//! Hides the window's WinBorder
void ServerWindow::Hide(void)
{
// NOTE: if you do something else, other than sending a port message, PLEASE lock
STRACE(("ServerWindow %s: Hide\n",fName));
if(fWinBorder->IsHidden())
return;
fWinBorder->GetRootLayer()->HideWinBorder(fWinBorder);
}
//------------------------------------------------------------------------------
void ServerWindow::Minimize(bool status)
{
// NOTE: if you do something else, other than sending a port message, PLEASE lock
// This function doesn't need much -- check to make sure that we should and
// send the message to the client. According to the BeBook, the BWindow hook function
// does all the heavy lifting for us. :)
bool sendMessages = false;
if (status)
{
if (!fWinBorder->IsHidden())
{
Hide();
sendMessages = true;
}
}
else
{
if (fWinBorder->IsHidden())
{
Show();
sendMessages = true;
}
}
if (sendMessages)
{
BMessage msg;
msg.what = B_MINIMIZE;
msg.AddInt64("when", real_time_clock_usecs());
msg.AddBool("minimize", status);
SendMessageToClient(&msg);
}
}
//------------------------------------------------------------------------------
// Sends a message to the client to perform a Zoom
void ServerWindow::Zoom(void)
{
// NOTE: if you do something else, other than sending a port message, PLEASE lock
BMessage msg;
msg.what=B_ZOOM;
SendMessageToClient(&msg);
}
//------------------------------------------------------------------------------
/*!
\brief Notifies window of a change in screen resolution
\param frame Size of the new resolution
\param color_space Color space of the new screen mode
*/
void ServerWindow::ScreenModeChanged(const BRect frame, const color_space cspace)
{
STRACE(("ServerWindow %s: ScreenModeChanged\n",fName));
BMessage msg;
msg.what = B_SCREEN_CHANGED;
msg.AddRect("frame", frame);
msg.AddInt32("mode", (int32)cspace);
SendMessageToClient(&msg);
}
//------------------------------------------------------------------------------
/*!
\brief Locks the window
\return B_OK if everything is ok, B_ERROR if something went wrong
*/
status_t ServerWindow::Lock(void)
{
STRACE(("\nServerWindow %s: Lock\n",fName));
return (fLocker.Lock())?B_OK:B_ERROR;
}
//------------------------------------------------------------------------------
//! Unlocks the window
void ServerWindow::Unlock(void)
{
STRACE(("ServerWindow %s: Unlock\n\n",fName));
fLocker.Unlock();
}
//------------------------------------------------------------------------------
/*!
\brief Determines whether or not the window is locked
\return True if locked, false if not.
*/
bool ServerWindow::IsLocked(void) const
{
return fLocker.IsLocked();
}
//------------------------------------------------------------------------------
/*!
\brief Sets the font state for a layer
\param layer The layer to set the font
*/
inline
void ServerWindow::SetLayerFontState(Layer *layer, LinkMsgReader &link)
{
STRACE(("ServerWindow %s: SetLayerFontStateMessage for layer %s\n",
fName, layer->fName->String()));
// NOTE: no need to check for a lock. This is a private method.
layer->fLayerData->ReadFontFromLink(link);
}
//------------------------------------------------------------------------------
inline
void ServerWindow::SetLayerState(Layer *layer, LinkMsgReader &link)
{
STRACE(("ServerWindow %s: SetLayerState for layer %s\n",fName,
layer->fName->String()));
// NOTE: no need to check for a lock. This is a private method.
layer->fLayerData->ReadFromLink(link);
// TODO: Rebuild clipping here?
}
//------------------------------------------------------------------------------
inline
Layer * ServerWindow::CreateLayerTree(Layer *localRoot, LinkMsgReader &link)
{
// NOTE: no need to check for a lock. This is a private method.
int32 token;
BRect frame;
uint32 resizeMask;
uint32 eventMask;
uint32 eventOptions;
uint32 flags;
bool hidden;
int32 childCount;
char *name = NULL;
link.Read<int32>(&token);
link.ReadString(&name);
link.Read<BRect>(&frame);
link.Read<uint32>(&resizeMask);
link.Read<uint32>(&eventMask);
link.Read<uint32>(&eventOptions);
link.Read<uint32>(&flags);
link.Read<bool>(&hidden);
link.Read<int32>(&childCount);
STRACE(("ServerWindow(%s)::CreateLayerTree()-> layer %s, token %ld\n", fName,name,token));
Layer *newLayer;
newLayer = new Layer(frame, name, token, resizeMask,
flags, desktop->GetDisplayDriver());
if (name)
free(name);
// there is no way of setting this, other than manually :-)
newLayer->fHidden = hidden;
newLayer->fEventMask = eventMask;
newLayer->fEventOptions = eventOptions;
newLayer->fOwner = fWinBorder;
// add the new Layer to the tree structure.
if(localRoot)
localRoot->AddChild(newLayer, NULL);
return newLayer;
}
//------------------------------------------------------------------------------
void ServerWindow::DispatchMessage(int32 code, LinkMsgReader &link)
{
if (cl == NULL && code != AS_LAYER_CREATE_ROOT)
{
printf("ServerWindow %s received unexpected code - message offset %ld before top_view attached.\n",fName, code - SERVER_TRUE);
return;
}
RootLayer *myRootLayer = fWinBorder->GetRootLayer();
switch(code)
{
//--------- BView Messages -----------------
case AS_LAYER_SCROLL:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SCROLL: Layer name: %s\n", fName, cl->fName->String()));
float dh;
float dv;
link.Read<float>(&dh);
link.Read<float>(&dv);
// scroll visually by using the CopyBits() implementation
// this will also take care of invalidating previously invisible
// areas (areas scrolled into view)
BRect src = cl->Bounds();
BRect dst = src;
// NOTE: if we scroll down, the contents are moved *up*
dst.OffsetBy(-dh, -dv);
// TODO: Are origin and scale handled in this conversion?
src = cl->ConvertToTop(src);
dst = cl->ConvertToTop(dst);
int32 xOffset = (int32)(dst.left - src.left);
int32 yOffset = (int32)(dst.top - src.top);
// this little detail is where it differs from CopyBits()
// -> it will invalidate areas previously out of screen
dst = dst | src;
_CopyBits(myRootLayer, cl, src, dst, xOffset, yOffset);
cl->fLayerData->OffsetOrigin(BPoint(dh, dv));
break;
}
case AS_LAYER_COPY_BITS:
{
BRect src;
BRect dst;
link.Read<BRect>(&src);
link.Read<BRect>(&dst);
// TODO: Are origin and scale handled in this conversion?
src = cl->ConvertToTop(src);
dst = cl->ConvertToTop(dst);
int32 xOffset = (int32)(dst.left - src.left);
int32 yOffset = (int32)(dst.top - src.top);
_CopyBits(myRootLayer, cl, src, dst, xOffset, yOffset);
break;
}
case AS_SET_CURRENT_LAYER:
{
int32 token;
link.Read<int32>(&token);
// Layer *current = FindLayer(fWinBorder->fTopLayer, token);
Layer *current = fWinBorder->FindLayer(token);
if(current)
{
DTRACE(("ServerWindow %s: Message AS_SET_CURRENT_LAYER: %s, token %ld\n", fName, current->fName->String(), token));
}
else
{
DTRACE(("ServerWindow %s: Message AS_SET_CURRENT_LAYER: layer not found, token %ld\n", fName, token));
}
if (current)
cl=current;
else // hope this NEVER happens! :-)
CRITICAL("Server PANIC: window cannot find Layer with ID\n");
break;
}
case AS_LAYER_CREATE_ROOT:
{
STRACE(("ServerWindow %s: Message AS_LAYER_CREATE_ROOT\n", fName));
// Start receiving top_view data -- pass NULL as the parent view.
// This should be the *only* place where this happens.
if (cl != NULL)
break;
// fWinBorder->fTopLayer = CreateLayerTree(NULL);
fWinBorder->fTopLayer = CreateLayerTree(NULL, link);
fWinBorder->fTopLayer->SetAsTopLayer(true);
cl = fWinBorder->fTopLayer;
// connect decorator and top layer.
fWinBorder->AddChild(fWinBorder->fTopLayer, NULL);
break;
}
case AS_LAYER_CREATE:
{
STRACE(("ServerWindow %s: Message AS_LAYER_CREATE: Layer name: %s\n", fName, cl->fName->String()));
Layer *newLayer;
if (cl == NULL)
break;
// newLayer = CreateLayerTree(NULL);
newLayer = CreateLayerTree(NULL, link);
cl->AddChild(newLayer, this);
if (!(newLayer->IsHidden())){
myRootLayer->GoInvalidate(newLayer, newLayer->fFull);
}
break;
}
case AS_LAYER_DELETE:
{
// Received when a view is detached from a window. This is definitely
// the less taxing operation - we call PruneTree() on the removed
// layer, detach the layer itself, delete it, and invalidate the
// area assuming that the view was visible when removed
STRACE(("ServerWindow %s: AS_LAYER_DELETE(self)...\n", fName));
Layer *parent;
parent = cl->fParent;
// here we remove current layer from list.
cl->RemoveSelf();
cl->PruneTree();
if (parent)
myRootLayer->GoInvalidate(parent, BRegion(cl->Frame()));
#ifdef DEBUG_SERVERWINDOW
parent->PrintTree();
#endif
STRACE(("DONE: ServerWindow %s: Message AS_DELETE_LAYER: Parent: %s Layer: %s\n", fName, parent->fName->String(), cl->fName->String()));
delete cl;
cl=parent;
break;
}
case AS_LAYER_SET_STATE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_STATE: Layer name: %s\n", fName, cl->fName->String()));
// SetLayerState(cl);
SetLayerState(cl, link);
// TODO: should this be moved into SetLayerState?
// If it _always_ needs to be done afterwards, then yes!
cl->RebuildFullRegion();
break;
}
case AS_LAYER_SET_FONT_STATE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_FONT_STATE: Layer name: %s\n", fName, cl->fName->String()));
// SetLayerFontState(cl);
SetLayerFontState(cl, link);
cl->RebuildFullRegion();
break;
}
case AS_LAYER_GET_STATE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_STATE: Layer name: %s\n", fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
// attach state data
cl->fLayerData->WriteToLink(*fMsgSender);
fMsgSender->Attach<float>(cl->fFrame.left);
fMsgSender->Attach<float>(cl->fFrame.top);
fMsgSender->Attach<BRect>(cl->fFrame.OffsetToCopy(cl->BoundsOrigin()));
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_MOUSE_EVENT_MASK:
{
STRACE(("ServerWindow %s: Message AS_LAYER_SET_MOUSE_EVENT_MASK: Layer name: %s\n", fName, cl->fName->String()));
uint32 mask;
uint32 options;
link.Read<uint32>(&mask);
link.Read<uint32>(&options);
myRootLayer->SetEventMaskLayer(cl, mask, options);
break;
}
case AS_LAYER_MOVETO:
{
STRACE(("ServerWindow %s: Message AS_LAYER_MOVETO: Layer name: %s\n", fName, cl->fName->String()));
float x, y;
link.Read<float>(&x);
link.Read<float>(&y);
float offsetX = x - cl->fFrame.left;
float offsetY = y - cl->fFrame.top;
cl->MoveBy(offsetX, offsetY);
break;
}
case AS_LAYER_RESIZETO:
{
STRACE(("ServerWindow %s: Message AS_LAYER_RESIZETO: Layer name: %s\n", fName, cl->fName->String()));
float newWidth, newHeight;
link.Read<float>(&newWidth);
link.Read<float>(&newHeight);
// TODO: If cl is a window, check for minimum size allowed.
// Need WinBorder::GetSizeLimits
float deltaWidth = newWidth - cl->fFrame.Width();
float deltaHeight = newHeight - cl->fFrame.Height();
cl->ResizeBy(deltaWidth, deltaHeight);
break;
}
case AS_LAYER_GET_COORD:
{
STRACE(("ServerWindow %s: Message AS_LAYER_GET_COORD: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
// our offset in the parent -> will be originX and originY in BView
fMsgSender->Attach<float>(cl->fFrame.left);
fMsgSender->Attach<float>(cl->fFrame.top);
// convert frame to bounds
fMsgSender->Attach<BRect>(cl->fFrame.OffsetToCopy(cl->BoundsOrigin()));
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_ORIGIN:
{
STRACE(("ServerWindow %s: Message AS_LAYER_SET_ORIGIN: Layer: %s\n",fName, cl->fName->String()));
float x, y;
link.Read<float>(&x);
link.Read<float>(&y);
cl->fLayerData->SetOrigin(BPoint(x, y));
break;
}
case AS_LAYER_GET_ORIGIN:
{
STRACE(("ServerWindow %s: Message AS_LAYER_GET_ORIGIN: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<BPoint>(cl->fLayerData->Origin());
fMsgSender->Flush();
break;
}
case AS_LAYER_RESIZE_MODE:
{
STRACE(("ServerWindow %s: Message AS_LAYER_RESIZE_MODE: Layer: %s\n",fName, cl->fName->String()));
link.Read<uint32>(&(cl->fResizeMode));
break;
}
case AS_LAYER_CURSOR:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_CURSOR: Layer: %s - NOT IMPLEMENTED\n",fName, cl->fName->String()));
int32 token;
link.Read<int32>(&token);
// TODO: implement; I think each Layer should have a member pointing
// to this requested cursor.
break;
}
case AS_LAYER_SET_FLAGS:
{
link.Read<uint32>(&(cl->fFlags));
STRACE(("ServerWindow %s: Message AS_LAYER_SET_FLAGS: Layer: %s\n",fName, cl->fName->String()));
break;
}
case AS_LAYER_HIDE:
{
STRACE(("ServerWindow %s: Message AS_LAYER_HIDE: Layer: %s\n",fName, cl->fName->String()));
cl->Hide();
break;
}
case AS_LAYER_SHOW:
{
STRACE(("ServerWindow %s: Message AS_LAYER_SHOW: Layer: %s\n",fName, cl->fName->String()));
cl->Show();
break;
}
case AS_LAYER_SET_LINE_MODE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_LINE_MODE: Layer: %s\n",fName, cl->fName->String()));
int8 lineCap, lineJoin;
float miterLimit;
// TODO: Look into locking scheme relating to Layers and modifying redraw-related members
link.Read<int8>(&lineCap);
link.Read<int8>(&lineJoin);
link.Read<float>(&miterLimit);
cl->fLayerData->SetLineCapMode((cap_mode)lineCap);
cl->fLayerData->SetLineJoinMode((join_mode)lineJoin);
cl->fLayerData->SetMiterLimit(miterLimit);
break;
}
case AS_LAYER_GET_LINE_MODE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_LINE_MODE: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<int8>((int8)(cl->fLayerData->LineCapMode()));
fMsgSender->Attach<int8>((int8)(cl->fLayerData->LineJoinMode()));
fMsgSender->Attach<float>(cl->fLayerData->MiterLimit());
fMsgSender->Flush();
break;
}
case AS_LAYER_PUSH_STATE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_PUSH_STATE: Layer: %s\n",fName, cl->fName->String()));
// TODO: refactor, put this in Layer
LayerData *ld = new LayerData();
ld->prevState = cl->fLayerData;
cl->fLayerData = ld;
cl->RebuildFullRegion();
break;
}
case AS_LAYER_POP_STATE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_POP_STATE: Layer: %s\n",fName, cl->fName->String()));
if (!(cl->fLayerData->prevState))
{
DTRACE(("WARNING: SW(%s): User called BView(%s)::PopState(), but there is NO state on stack!\n", fName, cl->fName->String()));
break;
}
// TODO: refactor, put this in Layer
LayerData *ld = cl->fLayerData;
cl->fLayerData = cl->fLayerData->prevState;
ld->prevState = NULL;
delete ld;
cl->RebuildFullRegion();
break;
}
case AS_LAYER_SET_SCALE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_SCALE: Layer: %s\n",fName, cl->fName->String()));
float scale;
link.Read<float>(&scale);
// TODO: The BeBook says, if you call SetScale() it will be
// multiplied with the scale from all previous states on the stack
cl->fLayerData->SetScale(scale);
break;
}
case AS_LAYER_GET_SCALE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_SCALE: Layer: %s\n",fName, cl->fName->String()));
LayerData *ld = cl->fLayerData;
// TODO: And here, we're taking that into account, but not above
// -> refactor put scale into Layer, or better yet, when the
// state stack is within Layer, PushState() should multiply
// by the previous last states scale. Would fix the problem above too.
float scale = ld->Scale();
while ((ld = ld->prevState))
scale *= ld->Scale();
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<float>(scale);
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_PEN_LOC:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_PEN_LOC: Layer: %s\n",fName, cl->fName->String()));
float x, y;
link.Read<float>(&x);
link.Read<float>(&y);
cl->fLayerData->SetPenLocation(BPoint(x, y));
break;
}
case AS_LAYER_GET_PEN_LOC:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_PEN_LOC: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<BPoint>(cl->fLayerData->PenLocation());
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_PEN_SIZE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_PEN_SIZE: Layer: %s\n",fName, cl->fName->String()));
float penSize;
link.Read<float>(&penSize);
cl->fLayerData->SetPenSize(penSize);
break;
}
case AS_LAYER_GET_PEN_SIZE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_PEN_SIZE: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<float>(cl->fLayerData->PenSize());
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_VIEW_COLOR:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_VIEW_COLOR: Layer: %s\n",fName, cl->fName->String()));
rgb_color c;
link.Read(&c, sizeof(rgb_color));
cl->fLayerData->SetViewColor(RGBColor(c));
// TODO: this should not trigger redraw, no?!?
myRootLayer->GoRedraw(cl, cl->fVisible);
break;
}
case AS_LAYER_GET_COLORS:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_COLORS: Layer: %s\n",fName, cl->fName->String()));
rgb_color highColor, lowColor, viewColor;
highColor = cl->fLayerData->HighColor().GetColor32();
lowColor = cl->fLayerData->LowColor().GetColor32();
viewColor = cl->fLayerData->ViewColor().GetColor32();
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach(&highColor, sizeof(rgb_color));
fMsgSender->Attach(&lowColor, sizeof(rgb_color));
fMsgSender->Attach(&viewColor, sizeof(rgb_color));
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_BLEND_MODE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_BLEND_MODE: Layer: %s\n",fName, cl->fName->String()));
int8 srcAlpha, alphaFunc;
link.Read<int8>(&srcAlpha);
link.Read<int8>(&alphaFunc);
cl->fLayerData->SetBlendingMode((source_alpha)srcAlpha,
(alpha_function)alphaFunc);
break;
}
case AS_LAYER_GET_BLEND_MODE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_BLEND_MODE: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<int8>((int8)(cl->fLayerData->AlphaSrcMode()));
fMsgSender->Attach<int8>((int8)(cl->fLayerData->AlphaFncMode()));
fMsgSender->Flush();
break;
}
case AS_LAYER_SET_DRAW_MODE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_DRAW_MODE: Layer: %s\n",fName, cl->fName->String()));
int8 drawingMode;
link.Read<int8>(&drawingMode);
cl->fLayerData->SetDrawingMode((drawing_mode)drawingMode);
break;
}
case AS_LAYER_GET_DRAW_MODE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_DRAW_MODE: Layer: %s\n",fName, cl->fName->String()));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<int8>((int8)(cl->fLayerData->GetDrawingMode()));
fMsgSender->Flush();
break;
}
case AS_LAYER_PRINT_ALIASING:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_PRINT_ALIASING: Layer: %s\n",fName, cl->fName->String()));
bool fontAliasing;
link.Read<bool>(&fontAliasing);
cl->fLayerData->SetFontAntiAliasing(!fontAliasing);
break;
}
case AS_LAYER_CLIP_TO_PICTURE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_CLIP_TO_PICTURE: Layer: %s\n",fName, cl->fName->String()));
// TODO: you are not allowed to use Layer regions here!!!
// If there is no other way, then first lock RootLayer object first.
// TODO: Watch out for the coordinate system in AS_LAYER_CLIP_TO_PICTURE
int32 pictureToken;
BPoint where;
link.Read<int32>(&pictureToken);
link.Read<BPoint>(&where);
BRegion reg;
bool redraw = false;
// if we had a picture to clip to, include the FULL visible region(if any) in the area to be redrawn
// in other words: invalidate what ever is visible for this layer and his children.
if (cl->clipToPicture && cl->fFullVisible.CountRects() > 0)
{
reg.Include(&cl->fFullVisible);
redraw = true;
}
// search for a picture with the specified token.
ServerPicture *sp = fServerApp->FindPicture(pictureToken);
// TODO: Increase that picture's reference count.(~ allocate a picture)
if (sp == NULL)
break;
// we have a new picture to clip to, so rebuild our full region
if(cl->clipToPicture)
{
cl->clipToPictureInverse = false;
cl->RebuildFullRegion();
}
// we need to rebuild the visible region, we may have a valid one.
if (cl->fParent && !(cl->fHidden))
{
//cl->fParent->RebuildChildRegions(cl->fFull.Frame(), cl);
}
else
{
// will this happen? Maybe...
//cl->RebuildRegions(cl->fFull.Frame());
}
// include our full visible region in the region to be redrawn
if (!(cl->fHidden) && (cl->fFullVisible.CountRects() > 0))
{
reg.Include(&(cl->fFullVisible));
redraw = true;
}
// redraw if we previously had or if we have acquired a picture to clip to.
// TODO: Are you sure about triggering a redraw?
if (redraw)
myRootLayer->GoRedraw(cl, reg);
break;
}
case AS_LAYER_CLIP_TO_INVERSE_PICTURE:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_CLIP_TO_INVERSE_PICTURE: Layer: %s\n",fName, cl->fName->String()));
// TODO: Watch out for the coordinate system in AS_LAYER_CLIP_TO_INVERSE_PICTURE
int32 pictureToken;
BPoint where;
link.Read<int32>(&pictureToken);
link.Read<BPoint>(&where);
// TODO: Increase that picture's reference count.(~ allocate a picture)
ServerPicture *sp = fServerApp->FindPicture(pictureToken);
if (sp == NULL)
break;
// if a picture has been found...
if(cl->clipToPicture)
{
cl->clipToPictureInverse = true;
cl->RebuildFullRegion();
//cl->RequestDraw(cl->clipToPicture->Frame());
}
break;
}
case AS_LAYER_GET_CLIP_REGION:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_GET_CLIP_REGION: Layer: %s\n",fName, cl->fName->String()));
// if this Layer is hidden, it is clear that its visible region is void.
if (cl->IsHidden())
{
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<int32>(0L);
fMsgSender->Flush();
}
else
{
// TODO: Watch out for the coordinate system in AS_LAYER_GET_CLIP_REGION
BRegion reg;
LayerData *ld;
int32 noOfRects;
ld = cl->fLayerData;
reg = cl->ConvertFromParent(&(cl->fVisible));
if (ld->ClippingRegion())
reg.IntersectWith(ld->ClippingRegion());
// TODO: This could also be done more reliably in the Layer,
// when the State stack is implemented there. There should be
// DrawData::fCulmulatedClippingRegion...
// TODO: the DrawData clipping region should be in local view coords.
while ((ld = ld->prevState)) {
if (ld->ClippingRegion())
reg.IntersectWith(ld->ClippingRegion());
}
noOfRects = reg.CountRects();
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<int32>(noOfRects);
for(int i = 0; i < noOfRects; i++)
fMsgSender->Attach<BRect>(reg.RectAt(i));
}
break;
}
case AS_LAYER_SET_CLIP_REGION:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_CLIP_REGION: Layer: %s\n",fName, cl->fName->String()));
// TODO: Watch out for the coordinate system in AS_LAYER_SET_CLIP_REGION
int32 noOfRects;
BRect r;
link.Read<int32>(&noOfRects);
BRegion region;
for(int i = 0; i < noOfRects; i++)
{
link.Read<BRect>(&r);
region.Include(r);
}
cl->fLayerData->SetClippingRegion(region);
cl->RebuildFullRegion();
if (!(cl->IsHidden()))
myRootLayer->GoInvalidate(cl, cl->fFull);
break;
}
case AS_LAYER_INVAL_RECT:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_INVAL_RECT: Layer: %s\n",fName, cl->fName->String()));
// TODO: handle transformation (origin and scale) prior to converting to top
BRect invalRect;
link.Read<BRect>(&invalRect);
BRect converted(cl->ConvertToTop(invalRect.LeftTop()),
cl->ConvertToTop(invalRect.RightBottom()));
myRootLayer->GoRedraw(fWinBorder, BRegion(converted));
break;
}
case AS_LAYER_INVAL_REGION:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_INVAL_RECT: Layer: %s\n",fName, cl->fName->String()));
// TODO: handle transformation (origin and scale) prior to converting to top
// TODO: Handle conversion to top
BRegion invalReg;
int32 noOfRects;
BRect rect;
link.Read<int32>(&noOfRects);
for(int i = 0; i < noOfRects; i++)
{
link.Read<BRect>(&rect);
invalReg.Include(rect);
}
myRootLayer->GoRedraw(cl, invalReg);
break;
}
case AS_BEGIN_UPDATE:
{
DTRACE(("ServerWindowo %s: AS_BEGIN_UPDATE\n",fName));
fWinBorder->GetRootLayer()->Lock();
fWinBorder->UpdateStart();
fWinBorder->GetRootLayer()->Unlock();
break;
}
case AS_END_UPDATE:
{
DTRACE(("ServerWindowo %s: AS_END_UPDATE\n",fName));
fWinBorder->GetRootLayer()->Lock();
fWinBorder->UpdateEnd();
fWinBorder->GetRootLayer()->Unlock();
break;
}
// ********** END: BView Messages ***********
// ********* BWindow Messages ***********
case AS_LAYER_DELETE_ROOT:
{
// Received when a window deletes its internal top view
// TODO: Implement AS_LAYER_DELETE_ROOT
STRACE(("ServerWindow %s: Message Delete_Layer_Root unimplemented\n",fName));
break;
}
case AS_SHOW_WINDOW:
{
STRACE(("ServerWindow %s: Message AS_SHOW_WINDOW\n",fName));
Show();
break;
}
case AS_HIDE_WINDOW:
{
STRACE(("ServerWindow %s: Message AS_HIDE_WINDOW\n",fName));
Hide();
break;
}
case AS_SEND_BEHIND:
{
// TODO: Implement AS_SEND_BEHIND
STRACE(("ServerWindow %s: Message Send_Behind unimplemented\n",fName));
break;
}
case AS_ENABLE_UPDATES:
{
// TODO: Implement AS_ENABLE_UPDATES
STRACE(("ServerWindow %s: Message Enable_Updates unimplemented\n",fName));
break;
}
case AS_DISABLE_UPDATES:
{
// TODO: Implement AS_DISABLE_UPDATES
STRACE(("ServerWindow %s: Message Disable_Updates unimplemented\n",fName));
break;
}
case AS_NEEDS_UPDATE:
{
// TODO: Implement AS_NEEDS_UPDATE
STRACE(("ServerWindow %s: Message Needs_Update unimplemented\n",fName));
break;
}
case AS_WINDOW_TITLE:
{
// TODO: Implement AS_WINDOW_TITLE
STRACE(("ServerWindow %s: Message Set_Title unimplemented\n",fName));
break;
}
case AS_ADD_TO_SUBSET:
{
STRACE(("ServerWindow %s: Message AS_ADD_TO_SUBSET\n",fName));
WinBorder *wb;
int32 mainToken;
team_id teamID;
link.Read<int32>(&mainToken);
link.Read(&teamID, sizeof(team_id));
wb = desktop->FindWinBorderByServerWindowTokenAndTeamID(mainToken, teamID);
if(wb)
{
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Flush();
BPortLink msg(-1, -1);
msg.StartMessage(AS_ROOTLAYER_ADD_TO_SUBSET);
msg.Attach<WinBorder*>(fWinBorder);
msg.Attach<WinBorder*>(wb);
fWinBorder->GetRootLayer()->EnqueueMessage(msg);
}
else
{
fMsgSender->StartMessage(SERVER_FALSE);
fMsgSender->Flush();
}
break;
}
case AS_REM_FROM_SUBSET:
{
STRACE(("ServerWindow %s: Message AS_REM_FROM_SUBSET\n",fName));
WinBorder *wb;
int32 mainToken;
team_id teamID;
link.Read<int32>(&mainToken);
link.Read(&teamID, sizeof(team_id));
wb = desktop->FindWinBorderByServerWindowTokenAndTeamID(mainToken, teamID);
if(wb)
{
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Flush();
BPortLink msg(-1, -1);
msg.StartMessage(AS_ROOTLAYER_REMOVE_FROM_SUBSET);
msg.Attach<WinBorder*>(fWinBorder);
msg.Attach<WinBorder*>(wb);
fWinBorder->GetRootLayer()->EnqueueMessage(msg);
}
else
{
fMsgSender->StartMessage(SERVER_FALSE);
fMsgSender->Flush();
}
break;
}
case AS_SET_LOOK:
{
// TODO: Implement AS_SET_LOOK
STRACE(("ServerWindow %s: Message Set_Look unimplemented\n",fName));
break;
}
case AS_SET_FLAGS:
{
// TODO: Implement AS_SET_FLAGS
STRACE(("ServerWindow %s: Message Set_Flags unimplemented\n",fName));
break;
}
case AS_SET_FEEL:
{
STRACE(("ServerWindow %s: Message AS_SET_FEEL\n",fName));
int32 newFeel;
link.Read<int32>(&newFeel);
myRootLayer->GoChangeWinBorderFeel(fWinBorder, newFeel);
break;
}
case AS_SET_ALIGNMENT:
{
// TODO: Implement AS_SET_ALIGNMENT
STRACE(("ServerWindow %s: Message Set_Alignment unimplemented\n",fName));
break;
}
case AS_GET_ALIGNMENT:
{
// TODO: Implement AS_GET_ALIGNMENT
STRACE(("ServerWindow %s: Message Get_Alignment unimplemented\n",fName));
break;
}
case AS_GET_WORKSPACES:
{
STRACE(("ServerWindow %s: Message Get_Workspaces unimplemented\n",fName));
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Attach<uint32>(fWinBorder->Workspaces());
fMsgSender->Flush();
break;
}
case AS_SET_WORKSPACES:
{
// TODO: Implement AS_SET_WORKSPACES
STRACE(("ServerWindow %s: Message Set_Workspaces unimplemented\n",fName));
uint32 newWorkspaces;
link.Read<uint32>(&newWorkspaces);
BPortLink msg(-1, -1);
msg.StartMessage(AS_ROOTLAYER_WINBORDER_SET_WORKSPACES);
msg.Attach<WinBorder*>(fWinBorder);
msg.Attach<uint32>(fWinBorder->Workspaces());
msg.Attach<uint32>(newWorkspaces);
fWinBorder->GetRootLayer()->EnqueueMessage(msg);
break;
}
case AS_WINDOW_RESIZE:
{
float xResizeBy;
float yResizeBy;
link.Read<float>(&xResizeBy);
link.Read<float>(&yResizeBy);
STRACE(("ServerWindow %s: Message AS_WINDOW_RESIZE %.1f, %.1f\n",fName, xResizeBy, yResizeBy));
fWinBorder->ResizeBy(xResizeBy, yResizeBy);
break;
}
case AS_WINDOW_MOVE:
{
float xMoveBy;
float yMoveBy;
link.Read<float>(&xMoveBy);
link.Read<float>(&yMoveBy);
STRACE(("ServerWindow %s: Message AS_WINDOW_MOVE: %.1f, %.1f\n",fName, xMoveBy, yMoveBy));
fWinBorder->MoveBy(xMoveBy, yMoveBy);
break;
}
case AS_SET_SIZE_LIMITS:
{
// Attached Data:
// 1) float minimum width
// 2) float maximum width
// 3) float minimum height
// 4) float maximum height
float wmin,wmax,hmin,hmax;
link.Read<float>(&wmin);
link.Read<float>(&wmax);
link.Read<float>(&hmin);
link.Read<float>(&hmax);
fWinBorder->SetSizeLimits(wmin,wmax,hmin,hmax);
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Flush();
break;
}
case B_MINIMIZE:
{
// TODO: Implement B_MINIMIZE
STRACE(("ServerWindow %s: Message Minimize unimplemented\n",fName));
break;
}
case B_WINDOW_ACTIVATED:
{
// TODO: Implement B_WINDOW_ACTIVATED
STRACE(("ServerWindow %s: Message Window_Activated unimplemented\n",fName));
break;
}
case B_ZOOM:
{
// TODO: Implement B_ZOOM
STRACE(("ServerWindow %s: Message Zoom unimplemented\n",fName));
break;
}
// Some BView drawing messages, but which don't need clipping
case AS_LAYER_SET_HIGH_COLOR:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_HIGH_COLOR: Layer: %s\n",fName, cl->fName->String()));
rgb_color c;
link.Read(&c, sizeof(rgb_color));
cl->fLayerData->SetHighColor(RGBColor(c));
break;
}
case AS_LAYER_SET_LOW_COLOR:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_LOW_COLOR: Layer: %s\n",fName, cl->fName->String()));
rgb_color c;
link.Read(&c, sizeof(rgb_color));
cl->fLayerData->SetLowColor(RGBColor(c));
break;
}
case AS_LAYER_SET_PATTERN:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_SET_PATTERN: Layer: %s\n", fName, cl->fName->String()));
pattern pat;
link.Read(&pat, sizeof(pattern));
cl->fLayerData->SetPattern(Pattern(pat));
break;
}
case AS_MOVEPENTO:
{
DTRACE(("ServerWindow %s: Message AS_MOVEPENTO\n",fName));
float x,y;
link.Read<float>(&x);
link.Read<float>(&y);
if(cl && cl->fLayerData)
cl->fLayerData->SetPenLocation(BPoint(x, y));
break;
}
case AS_SETPENSIZE:
{
DTRACE(("ServerWindow %s: Message AS_SETPENSIZE\n",fName));
float size;
link.Read<float>(&size);
if(cl && cl->fLayerData)
cl->fLayerData->SetPenSize(size);
break;
}
case AS_SET_FONT:
{
DTRACE(("ServerWindow %s: Message AS_SET_FONT\n",fName));
// TODO: Implement AS_SET_FONT?
// Confusing!! But it works already!
break;
}
case AS_SET_FONT_SIZE:
{
DTRACE(("ServerWindow %s: Message AS_SET_FONT_SIZE\n",fName));
// TODO: Implement AS_SET_FONT_SIZE?
break;
}
case AS_AREA_MESSAGE:
{
STRACE(("ServerWindow %s: Message AS_AREA_MESSAGE\n",fName));
// This occurs in only one kind of case: a message is too big to send over a port. This
// is really an edge case, so this shouldn't happen *too* often
// Attached Data:
// 1) area_id id of an area already owned by the server containing the message
// 2) size_t offset of the pointer in the area
// 3) size_t size of the message
area_id area;
size_t offset;
size_t msgsize;
area_info ai;
int8 *msgpointer;
link.Read<area_id>(&area);
link.Read<size_t>(&offset);
link.Read<size_t>(&msgsize);
// Part sanity check, part get base pointer :)
if(get_area_info(area,&ai)!=B_OK)
break;
msgpointer=(int8*)ai.address + offset;
RAMLinkMsgReader mlink(msgpointer);
DispatchMessage(mlink.Code(),mlink);
// This is a very special case in the sense that when ServerMemIO is used for this
// purpose, it will be set to NOT automatically free the memory which it had
// requested. This is the server's job once the message has been dispatched.
fServerApp->AppAreaPool()->ReleaseBuffer(msgpointer);
break;
}
case AS_SYNC:
{
// TODO: AS_SYNC is a no-op for now, just to get things working
fMsgSender->StartMessage(SERVER_TRUE);
fMsgSender->Flush();
break;
}
case AS_LAYER_DRAG_IMAGE:
{
// TODO: Implement AS_LAYER_DRAG_IMAGE
STRACE(("ServerWindow %s: Message AS_DRAG_IMAGE unimplemented\n",fName));
DTRACE(("ServerWindow %s: Message AS_DRAG_IMAGE unimplemented\n",fName));
break;
}
case AS_LAYER_DRAG_RECT:
{
// TODO: Implement AS_LAYER_DRAG_RECT
STRACE(("ServerWindow %s: Message AS_DRAG_RECT unimplemented\n",fName));
DTRACE(("ServerWindow %s: Message AS_DRAG_RECT unimplemented\n",fName));
break;
}
case AS_LAYER_GET_MOUSE_COORDS:
{
DTRACE(("ServerWindow %s: Message AS_GET_MOUSE_COORDS\n", fName));
fMsgSender->StartMessage(SERVER_TRUE);
// Returns
// 1) BPoint mouse location
// 2) int32 button state
fMsgSender->Attach<BPoint>(desktop->GetDisplayDriver()->GetCursorPosition());
fMsgSender->Attach<int32>(desktop->ActiveRootLayer()->Buttons());
fMsgSender->Flush();
break;
}
default:
DispatchGraphicsMessage(code, link);
break;
}
}
// -------------------- Graphics messages ----------------------------------
inline
void ServerWindow::DispatchGraphicsMessage(int32 code, LinkMsgReader &link)
{
fWinBorder->GetRootLayer()->Lock();
BRegion rreg(cl->fVisible);
if (fWinBorder->fInUpdate)
rreg.IntersectWith(&fWinBorder->yUpdateReg);
desktop->GetDisplayDriver()->ConstrainClippingRegion(&rreg);
// rgb_color rrr = cl->fLayerData->viewcolor.GetColor32();
// RGBColor c(rand()%255,rand()%255,rand()%255);
// desktop->GetDisplayDriver()->FillRect(BRect(0,0,639,479), c);
switch (code)
{
case AS_STROKE_LINE:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_LINE\n",fName));
float x1, y1, x2, y2;
link.Read<float>(&x1);
link.Read<float>(&y1);
link.Read<float>(&x2);
link.Read<float>(&y2);
if (cl && cl->fLayerData)
{
BPoint p1(x1,y1);
BPoint p2(x2,y2);
desktop->GetDisplayDriver()->StrokeLine(cl->ConvertToTop(p1),
cl->ConvertToTop(p2),
cl->fLayerData);
// We update the pen here because many DisplayDriver calls which do not update the
// pen position actually call StrokeLine
// TODO: Decide where to put this, for example, it cannot be done
// for DrawString(), also there needs to be a decision, if penlocation
// is in View coordinates (I think it should be) or in screen coordinates.
cl->fLayerData->SetPenLocation(p2);
}
break;
}
case AS_LAYER_INVERT_RECT:
{
DTRACE(("ServerWindow %s: Message AS_INVERT_RECT\n",fName));
BRect rect;
link.Read<BRect>(&rect);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->InvertRect(cl->ConvertToTop(rect));
break;
}
case AS_STROKE_RECT:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_RECT\n",fName));
float left, top, right, bottom;
link.Read<float>(&left);
link.Read<float>(&top);
link.Read<float>(&right);
link.Read<float>(&bottom);
BRect rect(left,top,right,bottom);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->StrokeRect(cl->ConvertToTop(rect),cl->fLayerData);
break;
}
case AS_FILL_RECT:
{
DTRACE(("ServerWindow %s: Message AS_FILL_RECT\n",fName));
BRect rect;
link.Read<BRect>(&rect);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->FillRect(cl->ConvertToTop(rect),cl->fLayerData);
break;
}
case AS_LAYER_DRAW_BITMAP_SYNC_AT_POINT:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_DRAW_BITMAP_SYNC_AT_POINT: Layer name: %s\n", fName, cl->fName->String()));
int32 bitmapToken;
BPoint point;
link.Read<int32>(&bitmapToken);
link.Read<BPoint>(&point);
ServerBitmap* sbmp = fServerApp->FindBitmap(bitmapToken);
if (sbmp) {
BRect src = sbmp->Bounds();
BRect dst = cl->fParent->ConvertFromParent(cl->fFull.Frame());
dst.OffsetBy(point);
cl->GetDisplayDriver()->DrawBitmap(sbmp, src, dst, cl->fLayerData);
}
// TODO: Adi -- shouldn't AS_LAYER_DRAW_BITMAP_SYNC_AT_POINT sync with the client?
break;
}
case AS_LAYER_DRAW_BITMAP_ASYNC_AT_POINT:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_DRAW_BITMAP_ASYNC_AT_POINT: Layer name: %s\n", fName, cl->fName->String()));
int32 bitmapToken;
BPoint point;
link.Read<int32>(&bitmapToken);
link.Read<BPoint>(&point);
ServerBitmap* sbmp = fServerApp->FindBitmap(bitmapToken);
if (sbmp) {
BRect src = sbmp->Bounds();
BRect dst = cl->fParent->ConvertFromParent(cl->fFull.Frame());
dst.OffsetBy(point);
cl->GetDisplayDriver()->DrawBitmap(sbmp, src, dst, cl->fLayerData);
}
break;
}
case AS_LAYER_DRAW_BITMAP_SYNC_IN_RECT:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_DRAW_BITMAP_SYNC_IN_RECT: Layer name: %s\n", fName, cl->fName->String()));
int32 bitmapToken;
BRect srcRect, dstRect;
link.Read<int32>(&bitmapToken);
link.Read<BRect>(&dstRect);
link.Read<BRect>(&srcRect);
ServerBitmap* sbmp = fServerApp->FindBitmap(bitmapToken);
if (sbmp) {
BRect dst = cl->fParent->ConvertFromParent(cl->fFull.Frame());
dstRect.OffsetBy(dst.left, dst.top);
// TODO: why is this not working:
// cl->ConvertToTop(dstRect);
cl->GetDisplayDriver()->DrawBitmap(sbmp, srcRect, dstRect, cl->fLayerData);
}
// TODO: Adi -- shouldn't AS_LAYER_DRAW_BITMAP_SYNC_IN_RECT sync with the client?
break;
}
case AS_LAYER_DRAW_BITMAP_ASYNC_IN_RECT:
{
DTRACE(("ServerWindow %s: Message AS_LAYER_DRAW_BITMAP_ASYNC_IN_RECT: Layer name: %s\n", fName, cl->fName->String()));
int32 bitmapToken;
BRect srcRect, dstRect;
link.Read<int32>(&bitmapToken);
link.Read<BRect>(&dstRect);
link.Read<BRect>(&srcRect);
ServerBitmap* sbmp = fServerApp->FindBitmap(bitmapToken);
if (sbmp) {
BRect dst = cl->fParent->ConvertFromParent(cl->fFull.Frame());
dstRect.OffsetBy(dst.left, dst.top);
// TODO: why is this not working:
// cl->ConvertToTop(dstRect);
cl->GetDisplayDriver()->DrawBitmap(sbmp, srcRect, dstRect, cl->fLayerData);
}
break;
}
case AS_STROKE_ARC:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_ARC\n",fName));
float angle, span;
BRect r;
link.Read<BRect>(&r);
link.Read<float>(&angle);
link.Read<float>(&span);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->StrokeArc(cl->ConvertToTop(r),angle,span,cl->fLayerData);
break;
}
case AS_FILL_ARC:
{
DTRACE(("ServerWindow %s: Message AS_FILL_ARC\n",fName));
float angle, span;
BRect r;
link.Read<BRect>(&r);
link.Read<float>(&angle);
link.Read<float>(&span);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->FillArc(cl->ConvertToTop(r),angle,span,cl->fLayerData);
break;
}
case AS_STROKE_BEZIER:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_BEZIER\n",fName));
BPoint *pts;
int i;
pts = new BPoint[4];
for (i=0; i<4; i++)
link.Read<BPoint>(&(pts[i]));
if (cl && cl->fLayerData)
{
for (i=0; i<4; i++)
pts[i]=cl->ConvertToTop(pts[i]);
desktop->GetDisplayDriver()->StrokeBezier(pts,cl->fLayerData);
}
delete [] pts;
break;
}
case AS_FILL_BEZIER:
{
DTRACE(("ServerWindow %s: Message AS_FILL_BEZIER\n",fName));
BPoint *pts;
int i;
pts = new BPoint[4];
for (i=0; i<4; i++)
link.Read<BPoint>(&(pts[i]));
if (cl && cl->fLayerData)
{
for (i=0; i<4; i++)
pts[i]=cl->ConvertToTop(pts[i]);
desktop->GetDisplayDriver()->FillBezier(pts,cl->fLayerData);
}
delete [] pts;
break;
}
case AS_STROKE_ELLIPSE:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_ELLIPSE\n",fName));
BRect rect;
link.Read<BRect>(&rect);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->StrokeEllipse(cl->ConvertToTop(rect),cl->fLayerData);
break;
}
case AS_FILL_ELLIPSE:
{
DTRACE(("ServerWindow %s: Message AS_FILL_ELLIPSE\n",fName));
BRect rect;
link.Read<BRect>(&rect);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->FillEllipse(cl->ConvertToTop(rect),cl->fLayerData);
break;
}
case AS_STROKE_ROUNDRECT:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_ROUNDRECT\n",fName));
BRect rect;
float xrad,yrad;
link.Read<BRect>(&rect);
link.Read<float>(&xrad);
link.Read<float>(&yrad);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->StrokeRoundRect(cl->ConvertToTop(rect),xrad,yrad,cl->fLayerData);
break;
}
case AS_FILL_ROUNDRECT:
{
DTRACE(("ServerWindow %s: Message AS_FILL_ROUNDRECT\n",fName));
BRect rect;
float xrad,yrad;
link.Read<BRect>(&rect);
link.Read<float>(&xrad);
link.Read<float>(&yrad);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->FillRoundRect(cl->ConvertToTop(rect),xrad,yrad,cl->fLayerData);
break;
}
case AS_STROKE_TRIANGLE:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_TRIANGLE\n",fName));
BPoint pts[3];
BRect rect;
for (int i=0; i<3; i++)
link.Read<BPoint>(&(pts[i]));
link.Read<BRect>(&rect);
if (cl && cl->fLayerData)
{
for(int i=0;i<3;i++)
pts[i]=cl->ConvertToTop(pts[i]);
desktop->GetDisplayDriver()->StrokeTriangle(pts,cl->ConvertToTop(rect),cl->fLayerData);
}
break;
}
case AS_FILL_TRIANGLE:
{
DTRACE(("ServerWindow %s: Message AS_FILL_TRIANGLE\n",fName));
BPoint pts[3];
BRect rect;
for (int i=0; i<3; i++)
link.Read<BPoint>(&(pts[i]));
link.Read<BRect>(&rect);
if (cl && cl->fLayerData)
{
for(int i=0;i<3;i++)
pts[i]=cl->ConvertToTop(pts[i]);
desktop->GetDisplayDriver()->FillTriangle(pts,cl->ConvertToTop(rect),cl->fLayerData);
}
break;
}
// TODO: get rid of all this code duplication!!
case AS_STROKE_POLYGON:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_POLYGON\n",fName));
BRect polyframe;
bool isclosed;
int32 pointcount;
BPoint *pointlist;
link.Read<BRect>(&polyframe);
link.Read<bool>(&isclosed);
link.Read<int32>(&pointcount);
pointlist=new BPoint[pointcount];
link.Read(pointlist, sizeof(BPoint)*pointcount);
for(int32 i=0; i<pointcount; i++)
pointlist[i]=cl->ConvertToTop(pointlist[i]);
desktop->GetDisplayDriver()->StrokePolygon(pointlist,pointcount,polyframe,
cl->fLayerData,isclosed);
delete [] pointlist;
break;
}
case AS_FILL_POLYGON:
{
DTRACE(("ServerWindow %s: Message AS_FILL_POLYGON\n",fName));
BRect polyframe;
int32 pointcount;
BPoint *pointlist;
link.Read<BRect>(&polyframe);
link.Read<int32>(&pointcount);
pointlist=new BPoint[pointcount];
link.Read(pointlist, sizeof(BPoint)*pointcount);
for(int32 i=0; i<pointcount; i++)
pointlist[i]=cl->ConvertToTop(pointlist[i]);
desktop->GetDisplayDriver()->FillPolygon(pointlist,pointcount,polyframe,cl->fLayerData);
delete [] pointlist;
break;
}
case AS_STROKE_SHAPE:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_SHAPE\n",fName));
BRect shaperect;
int32 opcount;
int32 ptcount;
int32 *oplist;
BPoint *ptlist;
link.Read<BRect>(&shaperect);
link.Read<int32>(&opcount);
link.Read<int32>(&ptcount);
oplist=new int32[opcount];
ptlist=new BPoint[ptcount];
link.Read(oplist,sizeof(int32)*opcount);
link.Read(ptlist,sizeof(BPoint)*ptcount);
for(int32 i=0; i<ptcount; i++)
ptlist[i]=cl->ConvertToTop(ptlist[i]);
desktop->GetDisplayDriver()->StrokeShape(shaperect, opcount, oplist, ptcount, ptlist, cl->fLayerData);
delete oplist;
delete ptlist;
break;
}
case AS_FILL_SHAPE:
{
DTRACE(("ServerWindow %s: Message AS_FILL_SHAPE\n",fName));
BRect shaperect;
int32 opcount;
int32 ptcount;
int32 *oplist;
BPoint *ptlist;
link.Read<BRect>(&shaperect);
link.Read<int32>(&opcount);
link.Read<int32>(&ptcount);
oplist=new int32[opcount];
ptlist=new BPoint[ptcount];
link.Read(oplist,sizeof(int32)*opcount);
link.Read(ptlist,sizeof(BPoint)*ptcount);
for(int32 i=0; i<ptcount; i++)
ptlist[i]=cl->ConvertToTop(ptlist[i]);
desktop->GetDisplayDriver()->FillShape(shaperect, opcount, oplist, ptcount, ptlist, cl->fLayerData);
delete oplist;
delete ptlist;
break;
}
case AS_FILL_REGION:
{
DTRACE(("ServerWindow %s: Message AS_FILL_REGION\n",fName));
int32 rectcount;
BRect *rectlist;
link.Read<int32>(&rectcount);
rectlist=new BRect[rectcount];
link.Read(rectlist, sizeof(BRect)*rectcount);
// Between the client-side conversion to BRects from clipping_rects to the overhead
// in repeatedly calling FillRect(), this is definitely in need of optimization. At
// least it works for now. :)
for(int32 i=0; i<rectcount; i++)
desktop->GetDisplayDriver()->FillRect(cl->ConvertToTop(rectlist[i]),cl->fLayerData);
delete [] rectlist;
// TODO: create support for clipping_rect usage for faster BRegion display.
// Tweaks to DisplayDriver are necessary along with conversion routines in Layer
break;
}
case AS_STROKE_LINEARRAY:
{
DTRACE(("ServerWindow %s: Message AS_STROKE_LINEARRAY\n",fName));
// Attached Data:
// 1) int32 Number of lines in the array
// 2) array of struct _array_data_ objects, as defined in ViewAux.h
int32 linecount;
link.Read<int32>(&linecount);
if(linecount>0)
{
LineArrayData linedata[linecount], *index;
for(int32 i=0; i<linecount; i++)
{
index=&linedata[i];
link.Read<float>(&(index->pt1.x));
link.Read<float>(&(index->pt1.y));
link.Read<float>(&(index->pt2.x));
link.Read<float>(&(index->pt2.y));
link.Read<rgb_color>(&(index->color));
index->pt1=cl->ConvertToTop(index->pt1);
index->pt2=cl->ConvertToTop(index->pt2);
}
desktop->GetDisplayDriver()->StrokeLineArray(linecount,linedata,cl->fLayerData);
}
break;
}
case AS_DRAW_STRING:
{
DTRACE(("ServerWindow %s: Message AS_DRAW_STRING\n",fName));
char *string;
int32 length;
BPoint location;
escapement_delta delta;
link.Read<int32>(&length);
link.Read<BPoint>(&location);
link.Read<escapement_delta>(&delta);
link.ReadString(&string);
if (cl && cl->fLayerData)
desktop->GetDisplayDriver()->DrawString(string, length,
cl->ConvertToTop(location),
cl->fLayerData);
free(string);
break;
}
default:
{
printf("ServerWindow %s received unexpected code - message offset %ld\n",fName, code - SERVER_TRUE);
break;
}
}
desktop->GetDisplayDriver()->ConstrainClippingRegion(NULL);
fWinBorder->GetRootLayer()->Unlock();
}
//------------------------------------------------------------------------------
/*!
\brief Message-dispatching loop for the ServerWindow
MonitorWin() watches the ServerWindow's message port and dispatches as necessary
\param data The thread's ServerWindow
\return Throwaway code. Always 0.
*/
int32 ServerWindow::MonitorWin(void *data)
{
ServerWindow *win = (ServerWindow *)data;
LinkMsgReader *ses = win->fMsgReader;
bool quitting = false;
int32 code;
status_t err = B_OK;
while(!quitting)
{
// printf("info: ServerWindow::MonitorWin listening on port %ld.\n", win->fMessagePort);
code = AS_CLIENT_DEAD;
err = ses->GetNextMessage(&code);
if (err < B_OK)
return err;
win->Lock();
switch(code)
{
case AS_DELETE_WINDOW:
case AS_CLIENT_DEAD:
{
// this means the client has been killed
STRACE(("ServerWindow %s received 'AS_CLIENT_DEAD/AS_DELETE_WINDOW' message code\n",win->Title()));
// RootLayer *myRootLayer = win->fWinBorder->GetRootLayer();
// quitting = true;
// we are preparing to delete a ServerWindow, RootLayer should be aware
// of that and stop for a moment.
// also we must wait a bit for the associated WinBorder to become hidden
// while(1)
// {
// myRootLayer->Lock();
// if (win->IsHidden())
// break;
// else
// myRootLayer->Unlock();
// }
// ServerWindow's destructor takes care of pulling this object off the desktop.
if (!win->fWinBorder->IsHidden())
CRITICAL("ServerWindow: a window must be hidden before it's deleted\n");
delete win;
// myRootLayer->Unlock();
exit_thread(0);
break;
}
case B_QUIT_REQUESTED:
{
STRACE(("ServerWindow %s received Quit request\n",win->Title()));
win->Quit();
break;
}
default:
{
win->DispatchMessage(code, *ses);
break;
}
}
win->Unlock();
}
return err;
}
// _CopyBits
void
ServerWindow::_CopyBits(RootLayer* rootLayer, Layer* layer,
BRect& src, BRect& dst,
int32 xOffset, int32 yOffset) const
{
// NOTE: The correct behaviour is this:
// * The region that is copied is the
// src rectangle, no matter if it fits
// into the dst rectangle. It is copied
// by the offset dst.LeftTop() - src.LeftTop()
// * The dst rectangle is used for invalidation:
// Any area in the dst rectangle that could
// not be copied from src (because either the
// src rectangle was not big enough, or because there
// were parts cut off by the current layer clipping),
// are triggering BView::Draw() to be called
// and for these parts only.
// the region that is going to be copied
BRegion copyRegion(src);
// apply the current clipping of the layer
copyRegion.IntersectWith(&layer->fVisible);
// offset the region to the destination
// and apply the current clipping there as well
copyRegion.OffsetBy(xOffset, yOffset);
copyRegion.IntersectWith(&layer->fVisible);
// the region at the destination that needs invalidation
BRegion invalidRegion(dst);
// exclude the region drawn by the copy operation
invalidRegion.Exclude(&copyRegion);
// apply the current clipping as well
invalidRegion.IntersectWith(&layer->fVisible);
// move the region back for the actual operation
copyRegion.OffsetBy(-xOffset, -yOffset);
layer->GetDisplayDriver()->CopyRegion(&copyRegion, xOffset, yOffset);
// trigger the redraw
rootLayer->GoRedraw(fWinBorder, invalidRegion);
}
//------------------------------------------------------------------------------
void ServerWindow::SendMessageToClient(const BMessage* msg, int32 target, bool usePreferred) const
{
ssize_t size = msg->FlattenedSize();
char* buffer = new char[size];
if (msg->Flatten(buffer, size) == B_OK) {
// BMessage::Private::SendFlattenedMessage(buffer, size,
// fClientLooperPort, target, usePreferred, B_INFINITE_TIMEOUT);
status_t ret = BMessage::Private::SendFlattenedMessage(buffer, size,
fClientLooperPort, target, usePreferred, 100000);
if (ret < B_OK)
fprintf(stderr, "ServerWindow::SendMessageToClient(): %s\n", strerror(ret));
} else
printf("PANIC: ServerWindow %s: can't flatten message in 'SendMessageToClient()'\n", fName);
delete[] buffer;
}
//------------------------------------------------------------------------------