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pptviewer mods

This commit is contained in:
Jonathan Corwin 2011-03-13 23:18:19 +00:00
parent 23b9884775
commit e8de37f7b3
4 changed files with 293 additions and 190 deletions
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2
openlp/plugins/presentations/lib/pptviewcontroller.py
View File

@ -140,8 +140,10 @@ class PptviewDocument(PresentationDocument):
PPTviewLib creates large BMP's, but we want small PNG's for consistency.
Convert them here.
"""
log.debug(u'create_thumbnails')
if self.check_thumbnails():
return
log.debug(u'create_thumbnails proceeding')
for idx in range(self.get_slide_count()):
path = u'%s\\slide%s.bmp' % (self.get_temp_folder(),
unicode(idx + 1))

472
openlp/plugins/presentations/lib/pptviewlib/pptviewlib.cpp
View File

@ -48,30 +48,28 @@ BOOL debug = FALSE;
HINSTANCE hInstance = NULL;
BOOL APIENTRY DllMain( HMODULE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call,
LPVOID lpReserved)
{
hInstance = (HINSTANCE)hModule;
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
DEBUG("PROCESS_ATTACH\n");
break;
case DLL_THREAD_ATTACH:
DEBUG("THREAD_ATTACH\n");
break;
case DLL_THREAD_DETACH:
DEBUG("THREAD_DETACH\n");
break;
case DLL_PROCESS_DETACH:
// Clean up... hopefully there is only the one process attached?
// We'll find out soon enough during tests!
DEBUG("PROCESS_DETACH\n");
for(int i = 0; i<MAX_PPTOBJS; i++)
ClosePPT(i);
break;
case DLL_PROCESS_ATTACH:
DEBUG("PROCESS_ATTACH\n");
break;
case DLL_THREAD_ATTACH:
DEBUG("THREAD_ATTACH\n");
break;
case DLL_THREAD_DETACH:
DEBUG("THREAD_DETACH\n");
break;
case DLL_PROCESS_DETACH:
// Clean up... hopefully there is only the one process attached?
// We'll find out soon enough during tests!
DEBUG("PROCESS_DETACH\n");
for(int i = 0; i<MAX_PPTOBJS; i++)
ClosePPT(i);
break;
}
return TRUE;
}
@ -96,34 +94,86 @@ DllExport BOOL CheckInstalled()
// "<n>.bmp" will be appended to complete the path. E.g. "c:\temp\slide" would
// create "c:\temp\slide1.bmp" slide2.bmp, slide3.bmp etc.
// It will also create a *info.txt containing information about the ppt
DllExport int OpenPPT(char *filename, HWND hParentWnd, RECT rect, char *previewpath)
DllExport int OpenPPT(char *filename, HWND hParentWnd, RECT rect,
char *previewpath)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
char cmdline[MAX_PATH * 2];
int id;
DEBUG("OpenPPT start: %s; %s\n", filename, previewpath);
DEBUG("OpenPPT start: %u; %i, %i, %i, %i\n", hParentWnd, rect.top, rect.left, rect.bottom, rect.right);
if(GetPPTViewerPath(cmdline, sizeof(cmdline))==FALSE)
{
DEBUG("OpenPPT: GetPPTViewerPath failed\n");
return -1;
}
DEBUG("OpenPPT start: %u; %i, %i, %i, %i\n", hParentWnd, rect.top,
rect.left, rect.bottom, rect.right);
id = -1;
for(int i = 0; i<MAX_PPTOBJS; i++)
for(int i = 0; i < MAX_PPTOBJS; i++)
{
if(pptviewobj[i].state==PPT_CLOSED)
if(pptviewobj[i].state == PPT_CLOSED)
{
id=i;
id = i;
break;
}
}
if(id<0)
if(id < 0)
{
DEBUG("OpenPPT: Too many PPTs\n");
return -1;
}
BOOL gotinfo = InitPPTObject(id, filename, hParentWnd, rect, previewpath);
if(!StartPPTView(id))
{
ClosePPT(id);
return -1;
}
if(!gotinfo)
{
DEBUG("OpenPPT: Get info\n");
pptviewobj[id].steps = 0;
int steps = 0;
while(pptviewobj[id].state == PPT_OPENED)
{
if(steps <= pptviewobj[id].steps)
{
Sleep(20);
DEBUG("OpenPPT: Step %d/%d\n",steps,pptviewobj[id].steps);
steps++;
NextStep(id);
}
Sleep(10);
}
DEBUG("OpenPPT: Steps %d, first slide steps %d\n",
pptviewobj[id].steps,pptviewobj[id].firstSlideSteps);
SavePPTInfo(id);
if(pptviewobj[id].state == PPT_CLOSING || pptviewobj[id].slideCount <= 0)
{
// We've gone off the end and pptview is closing. We'll need to start again
ClosePPT(id);
gotinfo = InitPPTObject(id, filename, hParentWnd, rect, previewpath);
if(gotinfo)
gotinfo = StartPPTView(id);
if(!gotinfo)
{
ClosePPT(id);
return -1;
}
}
else
RestartShow(id);
}
if(gotinfo)
{
DEBUG("OpenPPT: Info loaded, no refresh\n");
pptviewobj[id].state = PPT_LOADED;
Resume(id);
}
if(pptviewobj[id].mhook != NULL)
UnhookWindowsHookEx(pptviewobj[id].mhook);
pptviewobj[id].mhook = NULL;
DEBUG("OpenPPT: Exit: id=%i\n", id);
return id;
}
BOOL InitPPTObject(int id, char *filename, HWND hParentWnd,
RECT rect, char *previewpath)
{
DEBUG("InitPPTObject\n");
memset(&pptviewobj[id], 0, sizeof(PPTVIEWOBJ));
strcpy_s(pptviewobj[id].filename, MAX_PATH, filename);
strcpy_s(pptviewobj[id].previewpath, MAX_PATH, previewpath);
@ -131,10 +181,14 @@ DllExport int OpenPPT(char *filename, HWND hParentWnd, RECT rect, char *previewp
pptviewobj[id].slideCount = 0;
pptviewobj[id].currentSlide = 0;
pptviewobj[id].firstSlideSteps = 0;
pptviewobj[id].guess = 1;
for(int i = 0; i < MAX_SLIDES; i++)
pptviewobj[id].slideNo[i] = 0;
pptviewobj[id].hParentWnd = hParentWnd;
pptviewobj[id].hWnd = NULL;
pptviewobj[id].hWnd2 = NULL;
if(hParentWnd!=NULL&&rect.top==0&&rect.bottom==0&&rect.left==0&&rect.right==0)
if(hParentWnd != NULL && rect.top == 0 && rect.bottom == 0
&& rect.left == 0 && rect.right == 0)
{
LPRECT wndrect = NULL;
GetWindowRect(hParentWnd, wndrect);
@ -150,12 +204,11 @@ DllExport int OpenPPT(char *filename, HWND hParentWnd, RECT rect, char *previewp
pptviewobj[id].rect.bottom = rect.bottom;
pptviewobj[id].rect.right = rect.right;
}
strcat_s(cmdline, MAX_PATH * 2, "/F /S \"");
strcat_s(cmdline, MAX_PATH * 2, filename);
strcat_s(cmdline, MAX_PATH * 2, "\"");
memset(&si, 0, sizeof(si));
memset(&pi, 0, sizeof(pi));
BOOL gotinfo = GetPPTInfo(id);
return gotinfo;
}
BOOL StartPPTView(int id)
{
/*
* I'd really like to just hook on the new threadid. However this always gives
* error 87. Perhaps I'm hooking to soon? No idea... however can't wait
@ -164,69 +217,47 @@ DllExport int OpenPPT(char *filename, HWND hParentWnd, RECT rect, char *previewp
*
* hook = SetWindowsHookEx(WH_CBT,CbtProc,hInstance,pi.dwThreadId);
*/
if(globalhook!=NULL)
DEBUG("StartPPTView\n");
STARTUPINFO si;
PROCESS_INFORMATION pi;
char cmdline[MAX_PATH * 2];
if(globalhook != NULL)
UnhookWindowsHookEx(globalhook);
globalhook = SetWindowsHookEx(WH_CBT,CbtProc,hInstance,NULL);
if(globalhook==0)
globalhook = SetWindowsHookEx(WH_CBT, CbtProc, hInstance, NULL);
if(globalhook == 0)
{
DEBUG("OpenPPT: SetWindowsHookEx failed\n");
ClosePPT(id);
return -1;
return FALSE;
}
if(GetPPTViewerPath(cmdline, sizeof(cmdline)) == FALSE)
{
DEBUG("OpenPPT: GetPPTViewerPath failed\n");
return FALSE;
}
pptviewobj[id].state = PPT_STARTED;
Sleep(10);
strcat_s(cmdline, MAX_PATH * 2, "/F /S \"");
strcat_s(cmdline, MAX_PATH * 2, pptviewobj[id].filename);
strcat_s(cmdline, MAX_PATH * 2, "\"");
memset(&si, 0, sizeof(si));
memset(&pi, 0, sizeof(pi));
if(!CreateProcess(NULL, cmdline, NULL, NULL, FALSE, 0, 0, NULL, &si, &pi))
{
DEBUG("OpenPPT: CreateProcess failed\n");
ClosePPT(id);
return -1;
return FALSE;
}
pptviewobj[id].dwProcessId = pi.dwProcessId;
pptviewobj[id].dwThreadId = pi.dwThreadId;
pptviewobj[id].hThread = pi.hThread;
pptviewobj[id].hProcess = pi.hProcess;
while(pptviewobj[id].state==PPT_STARTED)
while(pptviewobj[id].state == PPT_STARTED)
Sleep(10);
if(gotinfo)
{
DEBUG("OpenPPT: Info loaded, no refresh\n");
pptviewobj[id].state = PPT_LOADED;
Resume(id);
}
else
{
DEBUG("OpenPPT: Get info\n");
pptviewobj[id].steps = 0;
int steps = 0;
while(pptviewobj[id].state==PPT_OPENED)
{
if(steps<=pptviewobj[id].steps)
{
Sleep(20);
DEBUG("OpenPPT: Step %d/%d\n",steps,pptviewobj[id].steps);
steps++;
NextStep(id);
}
Sleep(10);
}
DEBUG("OpenPPT: Steps %d, first slide steps %d\n",pptviewobj[id].steps,pptviewobj[id].firstSlideSteps);
SavePPTInfo(id);
if(pptviewobj[id].state==PPT_CLOSING||pptviewobj[id].slideCount<=0){
ClosePPT(id);
id=-1;
}
else
RestartShow(id);
}
if(id>=0)
{
if(pptviewobj[id].mhook!=NULL)
UnhookWindowsHookEx(pptviewobj[id].mhook);
pptviewobj[id].mhook = NULL;
}
DEBUG("OpenPPT: Exit: id=%i\n", id);
return id;
return TRUE;
}
// Load information about the ppt from an info.txt file.
// Format:
// version
@ -242,26 +273,26 @@ BOOL GetPPTInfo(int id)
char buf[100];
DEBUG("GetPPTInfo: start\n");
if(_stat(pptviewobj[id].filename, &filestats)!=0)
if(_stat(pptviewobj[id].filename, &filestats) != 0)
return FALSE;
sprintf_s(info, MAX_PATH, "%sinfo.txt", pptviewobj[id].previewpath);
int err = fopen_s(&pFile, info, "r");
if(err!=0)
if(err != 0)
{
DEBUG("GetPPTInfo: file open failed - %d\n", err);
return FALSE;
}
fgets(buf, 100, pFile); // version == 1
fgets(buf, 100, pFile);
if(filestats.st_mtime!=atoi(buf))
if(filestats.st_mtime != atoi(buf))
{
fclose (pFile);
return FALSE;
}
fgets(buf, 100, pFile);
if(filestats.st_size!=atoi(buf))
if(filestats.st_size != atoi(buf))
{
fclose (pFile);
fclose(pFile);
return FALSE;
}
fgets(buf, 100, pFile); // slidecount
@ -269,10 +300,11 @@ BOOL GetPPTInfo(int id)
fgets(buf, 100, pFile); // first slide steps
int firstslidesteps = atoi(buf);
// check all the preview images still exist
for(int i = 1; i<=slidecount; i++)
for(int i = 1; i <= slidecount; i++)
{
sprintf_s(info, MAX_PATH, "%s%i.bmp", pptviewobj[id].previewpath, i);
if(GetFileAttributes(info)==INVALID_FILE_ATTRIBUTES)
sprintf_s(info, MAX_PATH, "%s%i.bmp",
pptviewobj[id].previewpath, i);
if(GetFileAttributes(info) == INVALID_FILE_ATTRIBUTES)
return FALSE;
}
fclose(pFile);
@ -289,18 +321,22 @@ BOOL SavePPTInfo(int id)
FILE* pFile;
DEBUG("SavePPTInfo: start\n");
if(_stat(pptviewobj[id].filename, &filestats)!=0)
if(_stat(pptviewobj[id].filename, &filestats) != 0)
{
DEBUG("SavePPTInfo: stat of %s failed\n", pptviewobj[id].filename);
return FALSE;
}
sprintf_s(info, MAX_PATH, "%sinfo.txt", pptviewobj[id].previewpath);
int err = fopen_s(&pFile, info, "w");
if(err!=0)
if(err != 0)
{
DEBUG("SavePPTInfo: fopen of %s failed%i\n", info, err);
return FALSE;
}
else
{
DEBUG("SavePPTInfo: fopen of %s succeeded\n", info);
}
fprintf(pFile, "1\n");
fprintf(pFile, "%u\n", filestats.st_mtime);
fprintf(pFile, "%u\n", filestats.st_size);
@ -319,15 +355,28 @@ BOOL GetPPTViewerPath(char *pptviewerpath, int strsize)
LRESULT lresult;
DEBUG("GetPPTViewerPath: start\n");
if(RegOpenKeyEx(HKEY_CLASSES_ROOT, "PowerPointViewer.Show.12\\shell\\Show\\command", 0, KEY_READ, &hkey)!=ERROR_SUCCESS)
if(RegOpenKeyEx(HKEY_CLASSES_ROOT, "Applications\\PPTVIEW.EXE\\shell\\open\\command", 0, KEY_READ, &hkey)!=ERROR_SUCCESS)
if(RegOpenKeyEx(HKEY_CLASSES_ROOT, "Applications\\PPTVIEW.EXE\\shell\\Show\\command", 0, KEY_READ, &hkey)!=ERROR_SUCCESS)
return FALSE;
if(RegOpenKeyEx(HKEY_CLASSES_ROOT,
"PowerPointViewer.Show.12\\shell\\Show\\command",
0, KEY_READ, &hkey)!=ERROR_SUCCESS)
{
if(RegOpenKeyEx(HKEY_CLASSES_ROOT,
"Applications\\PPTVIEW.EXE\\shell\\open\\command",
0, KEY_READ, &hkey) != ERROR_SUCCESS)
{
if(RegOpenKeyEx(HKEY_CLASSES_ROOT,
"Applications\\PPTVIEW.EXE\\shell\\Show\\command",
0, KEY_READ, &hkey) != ERROR_SUCCESS)
{
return FALSE;
}
}
}
dwtype = REG_SZ;
dwsize = (DWORD)strsize;
lresult = RegQueryValueEx(hkey, NULL, NULL, &dwtype, (LPBYTE)pptviewerpath, &dwsize );
lresult = RegQueryValueEx(hkey, NULL, NULL, &dwtype,
(LPBYTE)pptviewerpath, &dwsize);
RegCloseKey(hkey);
if(lresult!=ERROR_SUCCESS)
if(lresult != ERROR_SUCCESS)
return FALSE;
pptviewerpath[strlen(pptviewerpath)-4] = '\0'; // remove "%1" from end of key value
DEBUG("GetPPTViewerPath: exit ok\n");
@ -338,9 +387,9 @@ BOOL GetPPTViewerPath(char *pptviewerpath, int strsize)
void Unhook(int id)
{
DEBUG("Unhook: start %d\n", id);
if(pptviewobj[id].hook!=NULL)
if(pptviewobj[id].hook != NULL)
UnhookWindowsHookEx(pptviewobj[id].hook);
if(pptviewobj[id].mhook!=NULL)
if(pptviewobj[id].mhook != NULL)
UnhookWindowsHookEx(pptviewobj[id].mhook);
pptviewobj[id].hook = NULL;
pptviewobj[id].mhook = NULL;
@ -353,7 +402,7 @@ DllExport void ClosePPT(int id)
DEBUG("ClosePPT: start%d\n", id);
pptviewobj[id].state = PPT_CLOSED;
Unhook(id);
if(pptviewobj[id].hWnd==0)
if(pptviewobj[id].hWnd == 0)
TerminateThread(pptviewobj[id].hThread, 0);
else
PostMessage(pptviewobj[id].hWnd, WM_CLOSE, 0, 0);
@ -367,9 +416,10 @@ DllExport void ClosePPT(int id)
DllExport void Resume(int id)
{
DEBUG("Resume: %d\n", id);
MoveWindow(pptviewobj[id].hWnd, pptviewobj[id].rect.left, pptviewobj[id].rect.top,
pptviewobj[id].rect.right - pptviewobj[id].rect.left,
pptviewobj[id].rect.bottom - pptviewobj[id].rect.top, TRUE);
MoveWindow(pptviewobj[id].hWnd, pptviewobj[id].rect.left,
pptviewobj[id].rect.top,
pptviewobj[id].rect.right - pptviewobj[id].rect.left,
pptviewobj[id].rect.bottom - pptviewobj[id].rect.top, TRUE);
Unblank(id);
}
// Moves the show off the screen so it can't be seen
@ -377,15 +427,15 @@ DllExport void Stop(int id)
{
DEBUG("Stop:%d\n", id);
MoveWindow(pptviewobj[id].hWnd, -32000, -32000,
pptviewobj[id].rect.right - pptviewobj[id].rect.left,
pptviewobj[id].rect.bottom - pptviewobj[id].rect.top, TRUE);
pptviewobj[id].rect.right - pptviewobj[id].rect.left,
pptviewobj[id].rect.bottom - pptviewobj[id].rect.top, TRUE);
}
// Return the total number of slides
DllExport int GetSlideCount(int id)
{
DEBUG("GetSlideCount:%d\n", id);
if(pptviewobj[id].state==0)
if(pptviewobj[id].state == 0)
return -1;
else
return pptviewobj[id].slideCount;
@ -395,7 +445,7 @@ DllExport int GetSlideCount(int id)
DllExport int GetCurrentSlide(int id)
{
DEBUG("GetCurrentSlide:%d\n", id);
if(pptviewobj[id].state==0)
if(pptviewobj[id].state == 0)
return -1;
else
return pptviewobj[id].currentSlide;
@ -407,13 +457,17 @@ DllExport void NextStep(int id)
DEBUG("NextStep:%d (%d)\n", id, pptviewobj[id].currentSlide);
if(pptviewobj[id].currentSlide>pptviewobj[id].slideCount)
return;
PostMessage(pptviewobj[id].hWnd2, WM_MOUSEWHEEL, MAKEWPARAM(0, -WHEEL_DELTA), 0);
pptviewobj[id].guess = pptviewobj[id].currentSlide + 1;
PostMessage(pptviewobj[id].hWnd2, WM_MOUSEWHEEL,
MAKEWPARAM(0, -WHEEL_DELTA), 0);
}
// Take a step backwards through the show
DllExport void PrevStep(int id)
{
DEBUG("PrevStep:%d (%d)\n", id, pptviewobj[id].currentSlide);
if(pptviewobj[id].currentSlide > 1)
pptviewobj[id].guess = pptviewobj[id].currentSlide - 1;
PostMessage(pptviewobj[id].hWnd2, WM_MOUSEWHEEL, MAKEWPARAM(0, WHEEL_DELTA), 0);
}
@ -469,16 +523,19 @@ DllExport void GotoSlide(int id, int slideno)
// the slideshow has focus first
char ch[10];
if(slideno<0) return;
if(slideno < 0)
return;
pptviewobj[id].guess = slideno;
_itoa_s(slideno, ch, 10, 10);
HWND h1 = GetForegroundWindow();
HWND h2 = GetFocus();
SetForegroundWindow(pptviewobj[id].hWnd);
SetFocus(pptviewobj[id].hWnd);
Sleep(50); // slight pause, otherwise event triggering this call may grab focus back!
for(int i=0;i<10;i++)
for(int i = 0; i < 10; i++)
{
if(ch[i]=='\0') break;
if(ch[i] == '\0')
break;
keybd_event((BYTE)ch[i], 0, 0, 0);
keybd_event((BYTE)ch[i], 0, KEYEVENTF_KEYUP, 0);
}
@ -511,12 +568,12 @@ DllExport void RestartShow(int id)
DEBUG("RestartShow:%d\n", id);
Stop(id);
GotoSlide(id, pptviewobj[id].slideCount);
while(pptviewobj[id].currentSlide>1)
while(pptviewobj[id].currentSlide > 1)
{
PrevStep(id);
Sleep(10);
}
for(int i=0;i<=pptviewobj[id].firstSlideSteps;i++)
for(int i = 0; i <= pptviewobj[id].firstSlideSteps; i++)
{
PrevStep(id);
Sleep(10);
@ -531,53 +588,55 @@ DllExport void RestartShow(int id)
LRESULT CALLBACK CbtProc(int nCode, WPARAM wParam, LPARAM lParam)
{
HHOOK hook = globalhook;
if(nCode==HCBT_CREATEWND)
if(nCode == HCBT_CREATEWND)
{
char csClassName[16];
HWND hCurrWnd = (HWND)wParam;
DWORD retProcId = NULL;
GetClassName(hCurrWnd, csClassName, sizeof(csClassName));
if((strcmp(csClassName, "paneClassDC")==0)
||(strcmp(csClassName, "screenClass")==0))
if((strcmp(csClassName, "paneClassDC") == 0)
||(strcmp(csClassName, "screenClass") == 0))
{
int id=-1;
int id = -1;
DWORD windowthread = GetWindowThreadProcessId(hCurrWnd,NULL);
for(int i=0; i<MAX_PPTOBJS; i++)
for(int i = 0; i < MAX_PPTOBJS; i++)
{
if(pptviewobj[i].dwThreadId==windowthread)
if(pptviewobj[i].dwThreadId == windowthread)
{
id=i;
id = i;
break;
}
}
if(id>=0)
if(id >= 0)
{
if(strcmp(csClassName, "paneClassDC")==0)
if(strcmp(csClassName, "paneClassDC") == 0)
pptviewobj[id].hWnd2=hCurrWnd;
else
{
pptviewobj[id].hWnd=hCurrWnd;
pptviewobj[id].hWnd = hCurrWnd;
CBT_CREATEWND* cw = (CBT_CREATEWND*)lParam;
if(pptviewobj[id].hParentWnd!=NULL)
if(pptviewobj[id].hParentWnd != NULL)
cw->lpcs->hwndParent = pptviewobj[id].hParentWnd;
cw->lpcs->cy=(pptviewobj[id].rect.bottom-pptviewobj[id].rect.top);
cw->lpcs->cx=(pptviewobj[id].rect.right-pptviewobj[id].rect.left);
cw->lpcs->y=-32000;
cw->lpcs->x=-32000;
cw->lpcs->cy = (pptviewobj[id].rect.bottom-pptviewobj[id].rect.top);
cw->lpcs->cx = (pptviewobj[id].rect.right-pptviewobj[id].rect.left);
cw->lpcs->y = -32000;
cw->lpcs->x = -32000;
}
if((pptviewobj[id].hWnd!=NULL)&&(pptviewobj[id].hWnd2!=NULL))
if((pptviewobj[id].hWnd != NULL) && (pptviewobj[id].hWnd2 != NULL))
{
UnhookWindowsHookEx(globalhook);
globalhook=NULL;
pptviewobj[id].hook = SetWindowsHookEx(WH_CALLWNDPROC,CwpProc,hInstance,pptviewobj[id].dwThreadId);
pptviewobj[id].mhook = SetWindowsHookEx(WH_GETMESSAGE,GetMsgProc,hInstance,pptviewobj[id].dwThreadId);
globalhook = NULL;
pptviewobj[id].hook = SetWindowsHookEx(WH_CALLWNDPROC,
CwpProc,hInstance, pptviewobj[id].dwThreadId);
pptviewobj[id].mhook = SetWindowsHookEx(WH_GETMESSAGE,
GetMsgProc, hInstance, pptviewobj[id].dwThreadId);
Sleep(10);
pptviewobj[id].state = PPT_OPENED;
}
}
}
}
return CallNextHookEx(hook,nCode,wParam,lParam);
return CallNextHookEx(hook, nCode, wParam, lParam);
}
// This hook exists whilst the slideshow is loading but only listens on the
@ -586,22 +645,23 @@ LRESULT CALLBACK GetMsgProc(int nCode, WPARAM wParam, LPARAM lParam)
{
HHOOK hook = NULL;
MSG *pMSG = (MSG *)lParam;
DWORD windowthread = GetWindowThreadProcessId(pMSG->hwnd,NULL);
int id=-1;
for(int i=0; i<MAX_PPTOBJS; i++)
DWORD windowthread = GetWindowThreadProcessId(pMSG->hwnd, NULL);
int id = -1;
for(int i = 0; i < MAX_PPTOBJS; i++)
{
if(pptviewobj[i].dwThreadId==windowthread)
if(pptviewobj[i].dwThreadId == windowthread)
{
id=i;
id = i;
hook = pptviewobj[id].mhook;
break;
}
}
if(id>=0&&nCode==HC_ACTION&&wParam==PM_REMOVE&&pMSG->message==WM_MOUSEWHEEL)
if(id >= 0 && nCode == HC_ACTION && wParam == PM_REMOVE
&& pMSG->message == WM_MOUSEWHEEL)
{
if(pptviewobj[id].state!=PPT_LOADED)
if(pptviewobj[id].state != PPT_LOADED)
{
if(pptviewobj[id].currentSlide==1)
if(pptviewobj[id].currentSlide == 1)
pptviewobj[id].firstSlideSteps++;
pptviewobj[id].steps++;
}
@ -610,60 +670,94 @@ LRESULT CALLBACK GetMsgProc(int nCode, WPARAM wParam, LPARAM lParam)
}
// This hook exists whilst the slideshow is running but only listens on the
// slideshows thread. It listens out for slide changes, message WM_USER+22.
LRESULT CALLBACK CwpProc(int nCode, WPARAM wParam, LPARAM lParam){
LRESULT CALLBACK CwpProc(int nCode, WPARAM wParam, LPARAM lParam)
{
CWPSTRUCT *cwp;
cwp = (CWPSTRUCT *)lParam;
HHOOK hook = NULL;
char filename[MAX_PATH];
DWORD windowthread = GetWindowThreadProcessId(cwp->hwnd,NULL);
int id=-1;
for(int i=0; i<MAX_PPTOBJS; i++)
DWORD windowthread = GetWindowThreadProcessId(cwp->hwnd, NULL);
int id = -1;
for(int i = 0; i < MAX_PPTOBJS; i++)
{
if(pptviewobj[i].dwThreadId==windowthread)
if(pptviewobj[i].dwThreadId == windowthread)
{
id=i;
id = i;
hook = pptviewobj[id].hook;
break;
}
}
if((id>=0)&&(nCode==HC_ACTION))
if((id >= 0) && (nCode == HC_ACTION))
{
if(cwp->message==WM_USER+22)
{
if(cwp->message == WM_USER + 22)
{
if(pptviewobj[id].state != PPT_LOADED)
{
if((pptviewobj[id].currentSlide>0)
&& (pptviewobj[id].previewpath!=NULL&&strlen(pptviewobj[id].previewpath)>0))
if((pptviewobj[id].currentSlide > 0)
&& (pptviewobj[id].previewpath != NULL
&& strlen(pptviewobj[id].previewpath) > 0))
{
sprintf_s(filename, MAX_PATH, "%s%i.bmp", pptviewobj[id].previewpath, pptviewobj[id].currentSlide);
sprintf_s(filename, MAX_PATH, "%s%i.bmp", pptviewobj[id].previewpath,
pptviewobj[id].currentSlide);
CaptureAndSaveWindow(cwp->hwnd, filename);
}
}
if(cwp->wParam==0)
if(cwp->wParam == 0)
{
if(pptviewobj[id].currentSlide>0)
if(pptviewobj[id].currentSlide > 0)
{
pptviewobj[id].state = PPT_LOADED;
pptviewobj[id].currentSlide = pptviewobj[id].slideCount+1;
pptviewobj[id].currentSlide = pptviewobj[id].slideCount + 1;
}
}
else
{
pptviewobj[id].currentSlide = cwp->wParam - 255;
if(pptviewobj[id].state != PPT_LOADED)
{
if(pptviewobj[id].currentSlide<pptviewobj[id].slideCount)
if((pptviewobj[id].currentSlide == 0)
||(pptviewobj[id].slideNo[pptviewobj[id].currentSlide] != cwp->wParam))
{
pptviewobj[id].state = PPT_LOADED;
if(pptviewobj[id].slideNo[1] == cwp->wParam)
{
pptviewobj[id].state = PPT_LOADED;
}
else
{
pptviewobj[id].currentSlide++;
pptviewobj[id].slideCount = pptviewobj[id].currentSlide;
pptviewobj[id].slideNo[pptviewobj[id].currentSlide] = cwp->wParam;
}
}
}
else
{
if(pptviewobj[id].guess > 0
&& pptviewobj[id].slideNo[pptviewobj[id].guess] == 0)
{
pptviewobj[id].currentSlide = 0;
}
for(int i = 1; i < pptviewobj[id].slideCount; i++)
{
if(pptviewobj[id].slideNo[i] == cwp->wParam)
{
pptviewobj[id].currentSlide = i;
break;
}
}
if(pptviewobj[id].currentSlide == 0)
{
pptviewobj[id].slideNo[pptviewobj[id].guess] = cwp->wParam;
pptviewobj[id].currentSlide = pptviewobj[id].guess;
}
}
if(pptviewobj[id].currentSlide>pptviewobj[id].slideCount)
pptviewobj[id].slideCount = pptviewobj[id].currentSlide;
}
}
if((pptviewobj[id].state != PPT_CLOSED)&&(cwp->message==WM_CLOSE||cwp->message==WM_QUIT))
if((pptviewobj[id].state != PPT_CLOSED)
&& (cwp->message == WM_CLOSE || cwp->message == WM_QUIT))
{
pptviewobj[id].state = PPT_CLOSING;
}
}
return CallNextHookEx(hook,nCode,wParam,lParam);
}
@ -685,26 +779,26 @@ VOID CaptureAndSaveWindow(HWND hWnd, CHAR* filename)
UINT uiBytesPerAllRows = uiBytesPerRow * client.bottom;
PBYTE pDataBits;
if ((pDataBits = new BYTE [uiBytesPerAllRows]) != NULL)
if ((pDataBits = new BYTE[uiBytesPerAllRows]) != NULL)
{
BITMAPINFOHEADER bmi = {0};
BITMAPFILEHEADER bmf = {0};
// Prepare to get the data out of HBITMAP:
bmi.biSize = sizeof (bmi);
bmi.biSize = sizeof(bmi);
bmi.biPlanes = 1;
bmi.biBitCount = 24;
bmi.biHeight = client.bottom;
bmi.biWidth = client.right;
// Get it:
HDC hDC = GetDC (hWnd);
GetDIBits (hDC, hBmp, 0, client.bottom, pDataBits,
(BITMAPINFO*) &bmi, DIB_RGB_COLORS);
ReleaseDC (hWnd, hDC);
HDC hDC = GetDC(hWnd);
GetDIBits(hDC, hBmp, 0, client.bottom, pDataBits,
(BITMAPINFO*) &bmi, DIB_RGB_COLORS);
ReleaseDC(hWnd, hDC);
// Fill the file header:
bmf.bfOffBits = sizeof (bmf) + sizeof (bmi);
bmf.bfOffBits = sizeof(bmf) + sizeof(bmi);
bmf.bfSize = bmf.bfOffBits + uiBytesPerAllRows;
bmf.bfType = 0x4D42;
@ -713,31 +807,33 @@ VOID CaptureAndSaveWindow(HWND hWnd, CHAR* filename)
int err = fopen_s(&pFile, filename, "wb");
if (err == 0)
{
fwrite (&bmf, sizeof (bmf), 1, pFile);
fwrite (&bmi, sizeof (bmi), 1, pFile);
fwrite (pDataBits, sizeof (BYTE), uiBytesPerAllRows, pFile);
fclose (pFile);
fwrite(&bmf, sizeof(bmf), 1, pFile);
fwrite(&bmi, sizeof(bmi), 1, pFile);
fwrite(pDataBits, sizeof(BYTE), uiBytesPerAllRows, pFile);
fclose(pFile);
}
delete [] pDataBits;
}
DeleteObject (hBmp);
DeleteObject(hBmp);
}
HBITMAP CaptureWindow (HWND hWnd) {
HBITMAP CaptureWindow(HWND hWnd)
{
HDC hDC;
BOOL bOk = FALSE;
HBITMAP hImage = NULL;
hDC = GetDC (hWnd);
hDC = GetDC(hWnd);
RECT rcClient;
GetClientRect (hWnd, &rcClient);
if ((hImage = CreateCompatibleBitmap (hDC, rcClient.right, rcClient.bottom)) != NULL)
GetClientRect(hWnd, &rcClient);
if((hImage = CreateCompatibleBitmap(hDC, rcClient.right, rcClient.bottom))
!= NULL)
{
HDC hMemDC;
HBITMAP hDCBmp;
if ((hMemDC = CreateCompatibleDC (hDC)) != NULL)
if((hMemDC = CreateCompatibleDC (hDC)) != NULL)
{
hDCBmp = (HBITMAP) SelectObject (hMemDC, hImage);
hDCBmp = (HBITMAP)SelectObject(hMemDC, hImage);
HMODULE hLib = LoadLibrary("User32");
// PrintWindow works for windows outside displayable area
// but was only introduced in WinXP. BitBlt requires the window to be topmost
@ -757,14 +853,14 @@ HBITMAP CaptureWindow (HWND hWnd) {
bOk = TRUE;
}
}
ReleaseDC (hWnd, hDC);
if (! bOk)
ReleaseDC(hWnd, hDC);
if(!bOk)
{
if (hImage)
{
DeleteObject (hImage);
DeleteObject(hImage);
hImage = NULL;
}
}
return hImage;
}
}

BIN
openlp/plugins/presentations/lib/pptviewlib/pptviewlib.dll
View File

Binary file not shown.

9
openlp/plugins/presentations/lib/pptviewlib/pptviewlib.h
View File

@ -27,11 +27,14 @@ VOID SaveBitmap (CHAR* filename, HBITMAP hBmp) ;
VOID CaptureAndSaveWindow(HWND hWnd, CHAR* filename);
BOOL GetPPTInfo(int id);
BOOL SavePPTInfo(int id);
BOOL InitPPTObject(int id, char *filename, HWND hParentWnd,
RECT rect, char *previewpath);
BOOL StartPPTView(int id);
void Unhook(int id);
#define MAX_PPTOBJS 50
#define MAX_PPTOBJS 16
#define MAX_SLIDES 256
struct PPTVIEWOBJ
{
@ -49,7 +52,9 @@ struct PPTVIEWOBJ
int currentSlide;
int firstSlideSteps;
int steps;
int guess;
char filename[MAX_PATH];
char previewpath[MAX_PATH];
int slideNo[MAX_SLIDES];
PPTVIEWSTATE state;
};