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Migrated init.c.

This commit is contained in:
Pietro Gagliardi 2016-04-22 13:31:33 -04:00
parent 57fbea1f3e
commit 7a4c73ff92
3 changed files with 181 additions and 208 deletions
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208
windows/init.c
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@ -1,208 +0,0 @@
// 6 april 2015
#include "uipriv_windows.h"
HINSTANCE hInstance;
int nCmdShow;
HFONT hMessageFont;
HBRUSH hollowBrush;
// TODO this won't work if initAlloc() failed
#define initErrorFormat L"error %s: %s%s%s %I32u (0x%I32X)%s"
#define initErrorArgs wmessage, sysmsg, beforele, label, value, value, afterle
static const char *initerr(const char *message, const WCHAR *label, DWORD value)
{
WCHAR *sysmsg;
BOOL hassysmsg;
WCHAR *beforele;
WCHAR *afterle;
int n;
WCHAR *wmessage;
WCHAR *wstr;
const char *str;
if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, value, 0, (LPWSTR) (&sysmsg), 0, NULL) != 0) {
hassysmsg = TRUE;
beforele = L" (";
afterle = L")";
} else {
hassysmsg = FALSE;
sysmsg = L"";
beforele = L"";
afterle = L"";
}
wmessage = toUTF16(message);
n = _scwprintf(initErrorFormat, initErrorArgs);
wstr = (WCHAR *) uiAlloc((n + 1) * sizeof (WCHAR), "WCHAR[]");
_snwprintf(wstr, n + 1, initErrorFormat, initErrorArgs);
str = toUTF8(wstr);
uiFree(wstr);
if (hassysmsg)
if (LocalFree(sysmsg) != NULL)
logLastError("error freeing system message in loadLastError()");
uiFree(wmessage);
return str;
}
static const char *loadLastError(const char *message)
{
return initerr(message, L"GetLastError() ==", GetLastError());
}
static const char *loadHRESULT(const char *message, HRESULT hr)
{
return initerr(message, L"HRESULT", (DWORD) hr);
}
static BOOL WINAPI consoleCtrlHandler(DWORD dwCtrlType)
{
switch (dwCtrlType) {
case CTRL_LOGOFF_EVENT:
case CTRL_SHUTDOWN_EVENT:
// the handler is run in a separate thread
SendMessageW(utilWindow, msgConsoleEndSession, 0, 0);
// we handled it here
// this WON'T terminate the program because this is a DLL
// at least, that's the best I can gather from the MSDN page on the handler function
// it says that functions registered by a DLL replace the default handler function (which ends the process)
// it works, anyway
return TRUE;
}
return FALSE;
}
uiInitOptions options;
#define wantedICCClasses ( \
ICC_STANDARD_CLASSES | /* user32.dll controls */ \
ICC_PROGRESS_CLASS | /* progress bars */ \
ICC_TAB_CLASSES | /* tabs */ \
ICC_LISTVIEW_CLASSES | /* table headers */ \
ICC_UPDOWN_CLASS | /* spinboxes */ \
ICC_BAR_CLASSES | /* trackbar */ \
ICC_DATE_CLASSES | /* date/time picker */ \
0)
const char *uiInit(uiInitOptions *o)
{
STARTUPINFOW si;
const char *ce;
HICON hDefaultIcon;
HCURSOR hDefaultCursor;
NONCLIENTMETRICSW ncm;
INITCOMMONCONTROLSEX icc;
HRESULT hr;
options = *o;
if (initAlloc() == 0)
return loadLastError("error initializing memory allocations");
initResizes();
nCmdShow = SW_SHOWDEFAULT;
GetStartupInfoW(&si);
if ((si.dwFlags & STARTF_USESHOWWINDOW) != 0)
nCmdShow = si.wShowWindow;
hDefaultIcon = LoadIconW(NULL, IDI_APPLICATION);
if (hDefaultIcon == NULL)
return loadLastError("loading default icon for window classes");
hDefaultCursor = LoadCursorW(NULL, IDC_ARROW);
if (hDefaultCursor == NULL)
return loadLastError("loading default cursor for window classes");
ce = initUtilWindow(hDefaultIcon, hDefaultCursor);
if (ce != NULL)
return loadLastError(ce);
if (registerWindowClass(hDefaultIcon, hDefaultCursor) == 0)
return loadLastError("registering uiWindow window class");
ZeroMemory(&ncm, sizeof (NONCLIENTMETRICSW));
ncm.cbSize = sizeof (NONCLIENTMETRICSW);
if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof (NONCLIENTMETRICSW), &ncm, sizeof (NONCLIENTMETRICSW)) == 0)
return loadLastError("getting default fonts");
hMessageFont = CreateFontIndirectW(&(ncm.lfMessageFont));
if (hMessageFont == NULL)
return loadLastError("loading default messagebox font; this is the default UI font");
// TODO rewrite this error message
if (initContainer(hDefaultIcon, hDefaultCursor) == 0)
return loadLastError("initializing uiMakeContainer() window class");
if (SetConsoleCtrlHandler(consoleCtrlHandler, TRUE) == 0)
return loadLastError("setting up console end session handler");
hollowBrush = (HBRUSH) GetStockObject(HOLLOW_BRUSH);
if (hollowBrush == NULL)
return loadLastError("getting hollow brush");
ZeroMemory(&icc, sizeof (INITCOMMONCONTROLSEX));
icc.dwSize = sizeof (INITCOMMONCONTROLSEX);
icc.dwICC = wantedICCClasses;
if (InitCommonControlsEx(&icc) == 0)
return loadLastError("initializing Common Controls");
hr = CoInitialize(NULL);
if (hr != S_OK && hr != S_FALSE)
return loadHRESULT("initializing COM", hr);
// TODO initialize COM security
// TODO (windows vista) turn off COM exception handling
hr = initDraw();
if (hr != S_OK)
return loadHRESULT("initializing Direct2D", hr);
hr = initDrawText();
if (hr != S_OK)
return loadHRESULT("initializing DirectWrite", hr);
if (registerAreaClass(hDefaultIcon, hDefaultCursor) == 0)
return loadLastError("registering uiArea window class");
if (registerAreaFilter() == 0)
return loadLastError("registering uiArea message filter");
if (registerD2DScratchClass(hDefaultIcon, hDefaultCursor) == 0)
return loadLastError("initializing D2D scratch window class");
return NULL;
}
void uiUninit(void)
{
uninitMenus();
unregisterD2DScratchClass();
unregisterArea();
uninitDrawText();
uninitDraw();
CoUninitialize();
if (DeleteObject(hollowBrush) == 0)
logLastError("error freeing hollow brush in uiUninit()");
if (SetConsoleCtrlHandler(consoleCtrlHandler, FALSE) == 0)
logLastError("error unregistering console end session handler in uiUninit()");
uninitContainer();
if (DeleteObject(hMessageFont) == 0)
logLastError("error deleting control font in uiUninit()");
unregisterWindowClass();
// no need to delete the default icon or cursor; see http://stackoverflow.com/questions/30603077/
uninitUtilWindow();
uninitResizes();
uninitTypes();
uninitAlloc();
}
void uiFreeInitError(const char *err)
{
uiFree((void *) err);
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
if (fdwReason == DLL_PROCESS_ATTACH)
hInstance = hinstDLL;
return TRUE;
}

170
windows/init.cpp Normal file
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@ -0,0 +1,170 @@
// 6 april 2015
#include "uipriv_windows.hpp"
HINSTANCE hInstance;
int nCmdShow;
HFONT hMessageFont;
// TODO needed?
HBRUSH hollowBrush;
// the returned pointer is actually to the second character
// if the first character is - then free, otherwise don't
static const char *initerr(const char *message, const WCHAR *label, DWORD code)
{
WCHAR *sysmsg;
BOOL hassysmsg;
WCHAR *wmessage;
WCHAR *out;
char *out;
hassysmsg = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, value, 0, (LPWSTR) (&sysmsg), 0, NULL) != 0;
if (!hassysmsg)
sysmsg = L"";
wmessage = toUTF16(message + 1);
wout = debugstrf(L"-error initializing libui: %s; code %I32d (0x%08I32X) %s",
wmessage,
value, value,
sysmsg);
uiFree(wmessage);
if (hassysmsg)
LocalFree(sysmsg); // ignore error
if (wout == NULL) // debugstrf() failed; return message raw
return message + 1;
out = toUTF8(wout);
uiFree(wout);
return out + 1;
}
#define ieLastErr(msg) initerr("=" message, L"GetLastError() ==", GetLastError())
#define ieHRESULT(msg, hr) initerr("=" message, L"HRESULT", (DWORD) hr)
// TODO make common
uiInitOptions options;
#define wantedICCClasses ( \
ICC_STANDARD_CLASSES | /* user32.dll controls */ \
ICC_PROGRESS_CLASS | /* progress bars */ \
ICC_TAB_CLASSES | /* tabs */ \
ICC_LISTVIEW_CLASSES | /* table headers */ \
ICC_UPDOWN_CLASS | /* spinboxes */ \
ICC_BAR_CLASSES | /* trackbar */ \
ICC_DATE_CLASSES | /* date/time picker */ \
0)
const char *uiInit(uiInitOptions *o)
{
STARTUPINFOW si;
const char *ce;
HICON hDefaultIcon;
HCURSOR hDefaultCursor;
NONCLIENTMETRICSW ncm;
INITCOMMONCONTROLSEX icc;
HRESULT hr;
options = *o;
initAlloc();
initResizes();
nCmdShow = SW_SHOWDEFAULT;
GetStartupInfoW(&si);
if ((si.dwFlags & STARTF_USESHOWWINDOW) != 0)
nCmdShow = si.wShowWindow;
hDefaultIcon = LoadIconW(NULL, IDI_APPLICATION);
if (hDefaultIcon == NULL)
return ieLastErr("loading default icon for window classes");
hDefaultCursor = LoadCursorW(NULL, IDC_ARROW);
if (hDefaultCursor == NULL)
return ieLastErr("loading default cursor for window classes");
ce = initUtilWindow(hDefaultIcon, hDefaultCursor);
if (ce != NULL)
return ieLastErr(ce);
if (registerWindowClass(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("registering uiWindow window class");
ZeroMemory(&ncm, sizeof (NONCLIENTMETRICSW));
ncm.cbSize = sizeof (NONCLIENTMETRICSW);
if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof (NONCLIENTMETRICSW), &ncm, sizeof (NONCLIENTMETRICSW)) == 0)
return ieLastErr("getting default fonts");
hMessageFont = CreateFontIndirectW(&(ncm.lfMessageFont));
if (hMessageFont == NULL)
return ieLastErr("loading default messagebox font; this is the default UI font");
// TODO rewrite this error message
if (initContainer(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("initializing uiMakeContainer() window class");
hollowBrush = (HBRUSH) GetStockObject(HOLLOW_BRUSH);
if (hollowBrush == NULL)
return ieLastErr("getting hollow brush");
ZeroMemory(&icc, sizeof (INITCOMMONCONTROLSEX));
icc.dwSize = sizeof (INITCOMMONCONTROLSEX);
icc.dwICC = wantedICCClasses;
if (InitCommonControlsEx(&icc) == 0)
return ieLastErr("initializing Common Controls");
hr = CoInitialize(NULL);
if (hr != S_OK && hr != S_FALSE)
return ieHRESULT("initializing COM", hr);
// TODO initialize COM security
// TODO (windows vista) turn off COM exception handling
hr = initDraw();
if (hr != S_OK)
return ieHRESULT("initializing Direct2D", hr);
hr = initDrawText();
if (hr != S_OK)
return ieHRESULT("initializing DirectWrite", hr);
if (registerAreaClass(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("registering uiArea window class");
if (registerAreaFilter() == 0)
return ieLastErr("registering uiArea message filter");
if (registerD2DScratchClass(hDefaultIcon, hDefaultCursor) == 0)
return ieLastErr("initializing D2D scratch window class");
return NULL;
}
void uiUninit(void)
{
uninitMenus();
unregisterD2DScratchClass();
unregisterArea();
uninitDrawText();
uninitDraw();
CoUninitialize();
if (DeleteObject(hollowBrush) == 0)
logLastError(L"error freeing hollow brush");
uninitContainer();
if (DeleteObject(hMessageFont) == 0)
logLastError(L"error deleting control font");
unregisterWindowClass();
// no need to delete the default icon or cursor; see http://stackoverflow.com/questions/30603077/
uninitUtilWindow();
uninitResizes();
uninitTypes();
uninitAlloc();
}
void uiFreeInitError(const char *err)
{
if (*(err - 1) == '-')
uiFree((void *) err);
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
if (fdwReason == DLL_PROCESS_ATTACH)
hInstance = hinstDLL;
return TRUE;
}

11
windows/uipriv_windows_new.hpp
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@ -1,5 +1,9 @@
// 21 april 2016
// alloc.cpp
extern void initAlloc(void);
extern void uninitAlloc(void);
// events.cpp
extern BOOL runWM_COMMAND(WPARAM wParam, LPARAM lParam, LRESULT *lResult);
extern BOOL runWM_NOTIFY(WPARAM wParam, LPARAM lParam, LRESULT *lResult);
@ -43,3 +47,10 @@ extern HWND parentToplevel(HWND child);
extern WCHAR *windowTextAndLen(HWND hwnd, LRESULT *len);
extern WCHAR *windowText(HWND hwnd);
extern void setWindowText(HWND hwnd, WCHAR *wtext);
// init.cpp
extern HINSTANCE hInstance;
extern int nCmdShow;
extern HFONT hMessageFont;
extern HBRUSH hollowBrush;
extern uiInitOptions options;