pjs/webshell/tests/imgtest/ImageTest.cpp

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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.
*/
//we need openfilename stuff... MMP
#ifdef WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include "prtypes.h"
#include <stdio.h>
#include "resources.h"
#include "nsIImageManager.h"
#include "nsIImageGroup.h"
#include "nsIImageRequest.h"
#include "nsIImageObserver.h"
#include "nsIRenderingContext.h"
#include "nsIImage.h"
#include "nsIWidget.h"
#include "nsGUIEvent.h"
#include "nsRect.h"
#include "nsWidgetsCID.h"
#include "nsGfxCIID.h"
#include "nsIDeviceContext.h"
static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID);
static NS_DEFINE_IID(kIImageObserverIID, NS_IIMAGEREQUESTOBSERVER_IID);
static NS_DEFINE_IID(kCWindowIID, NS_WINDOW_CID);
static NS_DEFINE_IID(kCChildWindowIID, NS_CHILD_CID);
static NS_DEFINE_IID(kCScrollbarIID, NS_VERTSCROLLBAR_CID);
static char* class1Name = "ImageTest";
static HINSTANCE gInstance, gPrevInstance;
static nsIImageManager *gImageManager = nsnull;
static nsIImageGroup *gImageGroup = nsnull;
static nsIImageRequest *gImageReq = nsnull;
static HWND gHwnd;
static nsIWidget *gWindow = nsnull;
static nsIImage *gImage = nsnull;
static PRBool gInstalledColorMap = PR_FALSE;
class MyObserver : public nsIImageRequestObserver {
public:
MyObserver();
~MyObserver();
NS_DECL_ISUPPORTS
virtual void Notify(nsIImageRequest *aImageRequest,
nsIImage *aImage,
nsImageNotification aNotificationType,
PRInt32 aParam1, PRInt32 aParam2,
void *aParam3);
virtual void NotifyError(nsIImageRequest *aImageRequest,
nsImageError aErrorType);
};
MyObserver::MyObserver()
{
}
MyObserver::~MyObserver()
{
}
NS_IMPL_ISUPPORTS(MyObserver, kIImageObserverIID)
void
MyObserver::Notify(nsIImageRequest *aImageRequest,
nsIImage *aImage,
nsImageNotification aNotificationType,
PRInt32 aParam1, PRInt32 aParam2,
void *aParam3)
{
switch (aNotificationType) {
case nsImageNotification_kDimensions:
{
char buffer[40];
sprintf(buffer, "Image:%d x %d", aParam1, aParam2);
::SetWindowText(gHwnd, buffer);
}
break;
case nsImageNotification_kPixmapUpdate:
case nsImageNotification_kImageComplete:
case nsImageNotification_kFrameComplete:
{
if (gImage == nsnull && aImage) {
gImage = aImage;
NS_ADDREF(aImage);
}
if (!gInstalledColorMap && gImage) {
nsColorMap *cmap = gImage->GetColorMap();
if (cmap != nsnull && cmap->NumColors > 0) {
gWindow->SetColorMap(cmap);
}
gInstalledColorMap = PR_TRUE;
}
nsRect *rect = (nsRect *)aParam3;
nsIRenderingContext *drawCtx = gWindow->GetRenderingContext();
if (gImage) {
drawCtx->DrawImage(gImage, 0, 0,
gImage->GetWidth(), gImage->GetHeight());
}
}
break;
}
}
void
MyObserver::NotifyError(nsIImageRequest *aImageRequest,
nsImageError aErrorType)
{
::MessageBox(NULL, "Image loading error!",
class1Name, MB_OK);
}
nsEventStatus PR_CALLBACK
MyHandleEvent(nsGUIEvent *aEvent)
{
nsEventStatus result = nsEventStatus_eConsumeNoDefault;
switch(aEvent->message) {
case NS_PAINT:
{
// paint the background
nsIRenderingContext *drawCtx = ((nsPaintEvent*)aEvent)->renderingContext;
drawCtx->SetColor(aEvent->widget->GetBackgroundColor());
drawCtx->FillRect(*(((nsPaintEvent*)aEvent)->rect));
if (gImage) {
drawCtx->DrawImage(gImage, 0, 0,
gImage->GetWidth(), gImage->GetHeight());
}
return nsEventStatus_eConsumeNoDefault;
}
break;
}
return nsEventStatus_eIgnore;
}
void
MyReleaseImages()
{
if (gImageReq) {
NS_RELEASE(gImageReq);
gImageReq = NULL;
}
if (gImage) {
NS_RELEASE(gImage);
gImage = NULL;
}
gInstalledColorMap = PR_FALSE;
}
void
MyInterrupt()
{
if (gImageGroup) {
gImageGroup->Interrupt();
}
}
#define FILE_URL_PREFIX "file://"
void
MyLoadImage(char *aFileName)
{
char fileURL[256];
char *str;
MyInterrupt();
MyReleaseImages();
if (gImageGroup == NULL) {
nsIDeviceContext *deviceCtx = gWindow->GetDeviceContext();
if (NS_NewImageGroup(&gImageGroup) != NS_OK ||
gImageGroup->Init(deviceCtx, nsnull) != NS_OK)
{
::MessageBox(NULL, "Couldn't create image group",
class1Name, MB_OK);
NS_RELEASE(deviceCtx);
return;
}
NS_RELEASE(deviceCtx);
}
strcpy(fileURL, FILE_URL_PREFIX);
strcpy(fileURL + strlen(FILE_URL_PREFIX), aFileName);
str = fileURL;
while ((str = strchr(str, '\\')) != NULL)
*str = '/';
nscolor white;
MyObserver *observer = new MyObserver();
NS_ColorNameToRGB(nsAutoString("white"), &white);
gImageReq = gImageGroup->GetImage(fileURL,
observer,
&white, 0, 0, 0);
if (gImageReq == NULL) {
::MessageBox(NULL, "Couldn't create image request",
class1Name, MB_OK);
}
}
PRBool
OpenFileDialog(char *aBuffer, int32 aBufLen)
{
BOOL result = FALSE;
OPENFILENAME ofn;
// *.js is the standard File Name on the Save/Open Dialog
::strcpy(aBuffer, "*.gif;*.png;*.jpg;*.jpeg");
// fill the OPENFILENAME sruct
ofn.lStructSize = sizeof(OPENFILENAME);
ofn.hwndOwner = gHwnd;
ofn.hInstance = gInstance;
ofn.lpstrFilter = "All Images (*.gif,*.png,*.jpg,*.jpeg)\0*.gif;*png;*.jpg;*.jpeg\0GIF Files (*.gif)\0*.gif\0PNG Files (*.png)\0*.png\0JPEG Files (*.jpg,*.jpeg)\0*.jpg;*.jpeg\0All Files\0*.*\0\0";
ofn.lpstrCustomFilter = NULL;
ofn.nMaxCustFilter = 0;
ofn.nFilterIndex = 1; // the first one in lpstrFilter
ofn.lpstrFile = aBuffer; // contains the file path name on return
ofn.nMaxFile = aBufLen;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL; // use default
ofn.lpstrTitle = NULL; // use default
ofn.Flags = OFN_CREATEPROMPT | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST;
ofn.nFileOffset = 0;
ofn.nFileExtension = 0;
ofn.lpstrDefExt = "gif"; // default extension is .js
ofn.lCustData = NULL;
ofn.lpfnHook = NULL;
ofn.lpTemplateName = NULL;
// call the open file dialog or the save file dialog according to aIsOpenDialog
result = ::GetOpenFileName(&ofn);
return (PRBool)result;
}
long PASCAL
WndProc(HWND hWnd, UINT msg, WPARAM param, LPARAM lparam)
{
HMENU hMenu;
switch (msg) {
case WM_COMMAND:
hMenu = GetMenu(hWnd);
switch (LOWORD(param)) {
case TIMER_OPEN:
{
char szFile[256];
if (!OpenFileDialog(szFile, 256))
return 0L;
MyLoadImage(szFile);
break;
}
case TIMER_EXIT:
::DestroyWindow(hWnd);
exit(0);
default:
break;
}
break;
case WM_CREATE:
// Initialize image library
if (NS_NewImageManager(&gImageManager) != NS_OK ||
gImageManager->Init() != NS_OK) {
::MessageBox(NULL, "Can't initialize the image library",
class1Name, MB_OK);
}
gImageManager->SetCacheSize(1024*1024);
break;
case WM_DESTROY:
MyInterrupt();
MyReleaseImages();
if (gImageGroup != nsnull) {
NS_RELEASE(gImageGroup);
}
if (gImageManager != nsnull) {
NS_RELEASE(gImageManager);
}
PostQuitMessage(0);
break;
default:
break;
}
return DefWindowProc(hWnd, msg, param, lparam);
}
static HWND CreateTopLevel(const char* clazz, const char* title,
int aWidth, int aHeight)
{
// Create a simple top level window
HWND window = ::CreateWindowEx(WS_EX_CLIENTEDGE,
clazz, title,
WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT,
aWidth, aHeight,
HWND_DESKTOP,
NULL,
gInstance,
NULL);
nsRect rect(0, 0, aWidth, aHeight);
nsresult rv = nsComponentManager::CreateInstance(kCChildWindowIID, NULL, kIWidgetIID, (void**)&gWindow);
if (NS_OK == rv) {
gWindow->Create((nsNativeWidget)window, rect, MyHandleEvent, NULL);
}
::ShowWindow(window, SW_SHOW);
::UpdateWindow(window);
return window;
}
#define WIDGET_DLL "raptorwidget.dll"
#define GFXWIN_DLL "raptorgfxwin.dll"
int PASCAL
WinMain(HINSTANCE instance, HINSTANCE prevInstance, LPSTR cmdParam, int nCmdShow)
{
gInstance = instance;
nsComponentManager::RegisterComponent(kCWindowIID, NULL, NULL, WIDGET_DLL, PR_FALSE, PR_FALSE);
nsComponentManager::RegisterComponent(kCChildWindowIID, NULL, NULL, WIDGET_DLL, PR_FALSE, PR_FALSE);
nsComponentManager::RegisterComponent(kCScrollbarIID, NULL, NULL, WIDGET_DLL, PR_FALSE, PR_FALSE);
static NS_DEFINE_IID(kCRenderingContextIID, NS_RENDERING_CONTEXT_CID);
static NS_DEFINE_IID(kCDeviceContextIID, NS_DEVICE_CONTEXT_CID);
static NS_DEFINE_IID(kCFontMetricsIID, NS_FONT_METRICS_CID);
static NS_DEFINE_IID(kCImageIID, NS_IMAGE_CID);
nsComponentManager::RegisterComponent(kCRenderingContextIID, NULL, NULL, GFXWIN_DLL, PR_FALSE, PR_FALSE);
nsComponentManager::RegisterComponent(kCDeviceContextIID, NULL, NULL, GFXWIN_DLL, PR_FALSE, PR_FALSE);
nsComponentManager::RegisterComponent(kCFontMetricsIID, NULL, NULL, GFXWIN_DLL, PR_FALSE, PR_FALSE);
nsComponentManager::RegisterComponent(kCImageIID, NULL, NULL, GFXWIN_DLL, PR_FALSE, PR_FALSE);
if (!prevInstance) {
WNDCLASS wndClass;
wndClass.style = 0;
wndClass.lpfnWndProc = WndProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = 0;
wndClass.hInstance = gInstance;
wndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndClass.hbrBackground = (HBRUSH) GetStockObject(LTGRAY_BRUSH);
wndClass.lpszMenuName = class1Name;
wndClass.lpszClassName = class1Name;
RegisterClass(&wndClass);
}
// Create our first top level window
HWND gHwnd = CreateTopLevel(class1Name, "Raptor HTML Viewer", 620, 400);
// Process messages
MSG msg;
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
void main(int argc, char **argv)
{
WinMain(GetModuleHandle(NULL), NULL, 0, SW_SHOW);
}