gecko-dev/cmd/winfe/cxicon.cpp

501 строка
12 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "stdafx.h"
#include "cxicon.h"
#include "feimage.h"
#include "winproto.h"
#include "helper.h"
HBITMAP CRDFImage::m_hBadImageBitmap = NULL;
int CRDFImage::refCount = 0;
CRDFImage::CRDFImage(const char * url)
{
m_nRefCount = 0;
pUrl = _strdup( url);
bmpInfo = NULL;
m_bCompletelyLoaded = FALSE;
m_bFrameLoaded = FALSE;
bits = 0;
maskbits = 0;
m_BadImage = FALSE;
CRDFImage::refCount++;
iconContext = NULL;
pairCount = 0;
}
CRDFImage::~CRDFImage()
{
// XP_FREE( bmpInfo);
// CDCCX::HugeFree(bits);
// CDCCX::HugeFree(maskbits);
free(pUrl);
CRDFImage::refCount--;
if (refCount == 0)
{
if (CRDFImage::m_hBadImageBitmap)
VERIFY(::DeleteObject(CRDFImage::m_hBadImageBitmap));
}
}
void CRDFImage::AddListener(CCustomImageObject* pObject, HT_Resource r)
{
// We only want to have one copy of the same image in this list.
for (POSITION pos = resourceList.GetHeadPosition();
pos != NULL; )
{
// Enumerate over the list and call remove listener on each image.
CIconCallbackInfo* pInfo = (CIconCallbackInfo*)resourceList.GetNext(pos);
if (pInfo->pObject == pObject &&
pInfo->pResource == r)
return; // We're already listening for this resource.
}
// Add a listener.
CIconCallbackInfo* iconCallbackInfo = new CIconCallbackInfo(pObject, r);
resourceList.AddHead(iconCallbackInfo);
pObject->AddLoadingImage(this);
m_nRefCount++;
if (iconContext == NULL)
{
// Kick off the load.
ProcessIcon();
}
}
void CRDFImage::RemoveListener(CCustomImageObject *pObject)
{
// Listener has been destroyed. Need to get all references to it out of the list.
// Just do this by NULLing out the pObject field of the iconcallbackinfo structs.
for (POSITION pos = resourceList.GetHeadPosition();
pos != NULL; )
{
CIconCallbackInfo* pInfo = (CIconCallbackInfo*)resourceList.GetNext(pos);
if (pInfo->pObject == pObject)
{
pInfo->pObject = NULL;
m_nRefCount--;
if (m_nRefCount == 0 && iconContext)
{
iconContext->Interrupt();
DestroyContext();
return;
}
}
}
}
void CRDFImage::RemoveListenerForSpecificResource(CCustomImageObject *pObject, HT_Resource r)
{
// Listener has been destroyed. Need to get all references to it out of the list.
// Just do this by NULLing out the pObject field of the iconcallbackinfo structs.
for (POSITION pos = resourceList.GetHeadPosition();
pos != NULL; )
{
CIconCallbackInfo* pInfo = (CIconCallbackInfo*)resourceList.GetNext(pos);
if (pInfo->pObject == pObject && pInfo->pResource == r)
{
pInfo->pObject = NULL;
m_nRefCount--;
if (m_nRefCount == 0 && iconContext)
{
iconContext->Interrupt();
DestroyContext();
return;
}
}
}
}
void CRDFImage::DestroyContext()
{
if (iconContext)
{
iconContext->DeleteContextDC();
iconContext->NiceDestruction();
iconContext = NULL;
}
resourceList.RemoveAll();
}
BOOL CRDFImage::FrameLoaded()
{
return (m_bFrameLoaded);
}
BOOL CRDFImage::FrameSuccessfullyLoaded()
{
return (m_bFrameLoaded && bits);
}
BOOL CRDFImage::CompletelyLoaded()
{
return m_bCompletelyLoaded;
}
void Icon_GetUrlExitRoutine(URL_Struct *pUrl, int iStatus, MWContext *pContext)
{
// Report any errors.
if(iStatus < 0 && pUrl->error_msg != NULL)
{
void* pData;
CRDFImage* theImage = NULL;
if (CHTFEData::m_CustomURLCache.Lookup(pUrl->address, pData))
theImage = (CRDFImage*)pData;
if (theImage)
{ // Since we cannot load this url, replace it with a bad image.
theImage->m_BadImage = TRUE;
theImage->bits = 0;
theImage->maskbits = 0;
theImage->bmpInfo = 0;
if (!CRDFImage::m_hBadImageBitmap)
CRDFImage::m_hBadImageBitmap = ::LoadBitmap(AfxGetResourceHandle(), MAKEINTRESOURCE(IDB_IMAGE_BAD));
theImage->CompleteCallback();
}
}
// standard free-a-URL-with-Windows-DDE-gunk mechanism:
if (NCAPIDATA(pUrl))
NCAPIDATA(pUrl)->EndProgress();
if (!NCAPIDATA(pUrl) || NCAPIDATA(pUrl)->CanFreeUrl()) {
FEU_DeleteUrlData(pUrl, NULL);
NET_FreeURLStruct(pUrl);
}
}
static BOOL IsImageMimeType(const CString& theFormat)
{
BOOL val = FALSE;
if (theFormat.CompareNoCase(IMAGE_GIF) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_JPG) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_PJPG) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_PPM) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_PNG) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_XBM) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_XBM2) == 0)
val = TRUE;
else if (theFormat.CompareNoCase(IMAGE_XBM3) == 0)
val = TRUE;
return val;
}
static BOOL ValidNSBitmapFormat(char* extension)
{
CPtrList* allHelpers = &(CHelperApp::m_cplHelpers);
for (POSITION pos = allHelpers->GetHeadPosition(); pos != NULL;)
{
CHelperApp* app = (CHelperApp*)allHelpers->GetNext(pos);
CString helperMime(app->cd_item->ci.type);
if (IsImageMimeType(helperMime))
{
if (app->cd_item->num_exts > 0)
{
for (int i = 0; i < app->cd_item->num_exts; i++)
{
CString extString(app->cd_item->exts[i]);
if (extString == &extension[1])
return TRUE;
}
}
}
}
return FALSE;
}
void CRDFImage::ProcessIcon()
{
char *ext = FE_FindFileExt(pUrl);
if (!ext) return;
if (ValidNSBitmapFormat(ext))
{
// If there is no context, create one for processing the image.
hSubDC = ::CreateCompatibleDC(NULL);
if (iconContext == NULL)
{
iconContext = new CXIcon(this);
iconContext->SubstituteDC(hSubDC);
iconContext->Initialize(FALSE, NULL, FALSE);
iconContext->SetUseDibPalColors(FALSE);
}
// Temporary hack to disable loading RDF images for the layout integration
// build.
#ifndef MOZ_NGLAYOUT
// Ask for this via client pull.
// We may be in the call stack of the image lib, and doing
// lots of fast small get urls causes it to barf due
// to list management not being reentrant.
FEU_ClientPull(iconContext->GetContext(), 0, NET_CreateURLStruct(pUrl, NET_DONT_RELOAD), FO_CACHE_AND_PRESENT, FALSE);
#endif
}
else
{ // handle window internal format BMP
CString extension = ext;
if (extension.CompareNoCase(".bmp"))
{
}
else
{
// TODO: Error handling here, unknow bitmap format.
}
}
}
void CRDFImage::CompleteCallback()
{
m_bCompletelyLoaded = TRUE;
m_bFrameLoaded = TRUE;
while (!resourceList.IsEmpty())
{
CIconCallbackInfo* callback = (CIconCallbackInfo*)(resourceList.RemoveHead());
if (callback->pObject)
{
callback->pObject->LoadComplete(callback->pResource);
callback->pObject->RemoveLoadingImage(this);
}
delete callback;
}
DestroyContext();
}
void CRDFImage::CompleteFrameCallback()
{
m_bFrameLoaded = TRUE;
for (POSITION pos = resourceList.GetHeadPosition(); pos != NULL; )
{
CIconCallbackInfo* callback = (CIconCallbackInfo*)(resourceList.GetNext(pos));
if (callback->pObject)
{
callback->pObject->LoadComplete(callback->pResource);
}
}
}
CXIcon::CXIcon(CRDFImage* theImage)
{
MWContext *pContext = GetContext();
m_cxType = IconCX;
pContext->type = MWContextIcon;
m_MM = MM_TEXT;
m_hDC = 0;
m_icon = theImage;
m_image = NULL;
m_mask = NULL;
}
CXIcon::~CXIcon()
{
}
BITMAPINFO * CXIcon::NewPixmap(NI_Pixmap *pImage, BOOL isMask)
{
// remember which bitmap we have so we can get the bits later in imageComplete.
if (isMask)
m_mask = pImage;
else m_image = pImage;
return CDCCX::NewPixmap(pImage, isMask);
}
int CXIcon::DisplayPixmap(NI_Pixmap* image, NI_Pixmap* mask, int32 x, int32 y, int32 x_offset, int32 y_offset, int32 width, int32 height, int32 lScaleWidth, int32 lScaleHeight, LTRB& Rect)
{
/*
if (m_image)
{
CDCCX::HugeFree(m_image->bits);
m_image->bits = NULL;
FEBitmapInfo *imageInfo = (FEBitmapInfo*)m_image->client_data;
delete imageInfo;
m_image->client_data = NULL;
m_image = NULL;
}
if (m_mask)
{
CDCCX::HugeFree(m_mask->bits);
m_mask->bits = NULL;
FEBitmapInfo *imageInfo = (FEBitmapInfo*)m_mask->client_data;
delete imageInfo;
m_mask->client_data = NULL;
m_mask = NULL;
}
*/
if (m_icon->bits)
{
// Free the old pixmap to make way for the new.
CDCCX::HugeFree(m_icon->bits);
m_icon->bits = NULL;
}
if (m_icon->maskbits)
{
// Free the old mask to make way for the new.
CDCCX::HugeFree(m_icon->maskbits);
m_icon->maskbits = NULL;
}
if (m_icon->bmpInfo)
{
XP_FREE(m_icon->bmpInfo);
m_icon->bmpInfo = NULL;
}
// Get the new pixmap.
m_image = image;
m_mask = mask;
// Fill in our header.
m_icon->bmpInfo = FillBitmapInfoHeader(image);
if (!m_icon->bmpInfo)
return 1;
// Copy our bits if we have any.
if (m_image->bits)
{
FEBitmapInfo* imageInfo = (FEBitmapInfo*) m_image->client_data;
BITMAPINFOHEADER* header = (BITMAPINFOHEADER*)imageInfo->bmpInfo;
m_icon->bits = HugeAlloc(header->biSizeImage, 1);
memcpy( m_icon->bits, m_image->bits, header->biSizeImage );
}
if (mask && m_mask->bits)
{
FEBitmapInfo* imageInfo = (FEBitmapInfo*) m_mask->client_data;
BITMAPINFOHEADER* header = (BITMAPINFOHEADER*)imageInfo->bmpInfo;
m_icon->maskbits = HugeAlloc(header->biSizeImage, 1);
memcpy( m_icon->maskbits, m_mask->bits, header->biSizeImage );
}
m_icon->CompleteFrameCallback();
return 1;
}
void CXIcon::ImageComplete(NI_Pixmap* image)
{
// Will get a call for both the mask and for the image.
if (m_image && m_mask)
{
m_icon->pairCount++;
if (m_icon->pairCount == 2)
m_icon->CompleteCallback();
}
else
{
// We have no mask.
m_icon->CompleteCallback();
}
}
// Don't display partial images.
void CXIcon::AllConnectionsComplete(MWContext *pContext)
{
CDCCX::AllConnectionsComplete(pContext);
}
void CXIcon::NiceDestruction()
{
m_bIdleDestroy = TRUE;
FEU_RequestIdleProcessing(GetContext());
}
// ========================= CCustomImageObject Helpers =============================
CRDFImage* CCustomImageObject::LookupImage(const char* url, HT_Resource r)
{
// Find the image.
void* pData;
CRDFImage* pImage = NULL;
if (CHTFEData::m_CustomURLCache.Lookup(url, pData))
{
pImage = (CRDFImage*)pData;
// Add ourselves to the callback list if the image hasn't completely loaded.
if (!pImage->CompletelyLoaded())
{
// The image is currently loading. Register ourselves with the image so that we will get called
// when the image finishes loading.
pImage->AddListener(this, r);
}
}
else
{
// Create a new NavCenter image.
pImage = new CRDFImage(url);
pImage->AddListener(this, r);
CHTFEData::m_CustomURLCache.SetAt(url, pImage);
}
return pImage;
}
CCustomImageObject::~CCustomImageObject()
{
// The displayer of the image is being destroyed. It should be removed as a listener from all
// images.
for (POSITION pos = loadingImagesList.GetHeadPosition();
pos != NULL; )
{
// Enumerate over the list and call remove listener on each image.
CRDFImage* pImage = (CRDFImage*)loadingImagesList.GetNext(pos);
pImage->RemoveListener(this);
}
}
void CCustomImageObject::AddLoadingImage(CRDFImage* pImage)
{
// We only want to have one copy of the same image in this list.
for (POSITION pos = loadingImagesList.GetHeadPosition();
pos != NULL; )
{
// Enumerate over the list and call remove listener on each image.
CRDFImage* pNavImage = (CRDFImage*)loadingImagesList.GetNext(pos);
if (pNavImage == pImage)
return;
}
// Add the image to the list.
loadingImagesList.AddHead(pImage);
}
void CCustomImageObject::RemoveLoadingImage(CRDFImage* pImage)
{
// Should only occur once in our list. Find and remove.
POSITION pos = loadingImagesList.Find(pImage);
if (pos)
loadingImagesList.RemoveAt(pos);
}