Initial community commit

1 files changed, 350 insertions, 0 deletions

diff --git a/Src/Plugins/Library/ml_disc/helpwnd.cpp b/Src/Plugins/Library/ml_disc/helpwnd.cpp
new file mode 100644
index 00000000..3bbce8be
--- /dev/null
+++ b/Src/Plugins/Library/ml_disc/helpwnd.cpp
@@ -0,0 +1,350 @@
+#include "main.h"
+#include "./resource.h"
+#include "../nu/trace.h"
+#include <strsafe.h>
+
+#define MLHELP_PROP			TEXT("MLHELP")
+
+typedef struct __SIMPLEHELP
+{
+	LPCWSTR pszTitle;
+	LPCWSTR pszCaption;
+	LPCWSTR pszText;
+	HWND	hOwner;
+	UINT	uFlags;
+} SIMPLEHELP;
+
+typedef struct __MLHELP
+{
+	HWND	hOwner;
+	UINT	uFlags;
+	LONG	width;
+	LONG	height;
+} MLHELP;
+
+#define GetHelp(__hwnd) ((MLHELP*)GetProp((__hwnd), MLHELP_PROP))
+
+#define CLIENT_MIN_WIDTH		280
+#define CLIENT_MIN_HEIGHT	200
+#define CLIENT_MAX_WIDTH		800
+#define CLIENT_MAX_HEIGHT	600
+#define BORDER_SPACE		10
+
+static INT_PTR CALLBACK SimpleHelp_DialogProc(HWND hdlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
+
+HWND MLDisc_ShowHelp(HWND hOwner, LPCWSTR pszWindowTitle, LPCWSTR pszCaption, LPCWSTR pszText, UINT uFlags)
+{
+	SIMPLEHELP help;
+	help.pszTitle = pszWindowTitle;
+	help.pszCaption = pszCaption;
+	help.pszText = pszText;
+	help.uFlags = uFlags;
+	help.hOwner = hOwner;
+	
+	if (HF_DOMODAL & uFlags)
+	{
+		WASABI_API_DIALOGBOXPARAMW(IDD_SIMPLEHELP, hOwner, SimpleHelp_DialogProc, (LPARAM)&help);
+		return NULL;	
+	}
+
+	return WASABI_API_CREATEDIALOGPARAMW(IDD_SIMPLEHELP, hOwner, SimpleHelp_DialogProc, (LPARAM)&help);
+}
+
+static BOOL FindPrefferedSizeEx(HDC hdc, LPCTSTR pszText, LPCTSTR pszNewLine, SIZE *pSize)
+{
+	if (!pSize) return FALSE;
+	pSize->cx = 0; pSize->cy = 0;
+	if (!hdc || !pszText || !pszNewLine) return FALSE;
+	LPCTSTR pszBlock = pszText;
+	LPCTSTR pszCursor = pszBlock;
+	INT cchSep = lstrlenW(pszNewLine);
+	INT matched = 0;
+	for(;;)
+	{
+		if (*pszCursor)
+		{
+			if (*pszCursor == pszNewLine[matched]) matched++;
+			else matched = 0;
+			pszCursor++;
+		}
+		if (matched == cchSep || TEXT('\0') == *pszCursor)
+		{
+			SIZE sz;
+
+			INT l = (INT)(size_t)((pszCursor - pszBlock) - matched);
+			if (l > 0)
+			{
+				if (!GetTextExtentPoint32(hdc, pszBlock, l, &sz)) return FALSE;
+			}
+			else 
+			{
+				if (!GetTextExtentPoint32(hdc, TEXT("\n"), 1, &sz)) return FALSE;
+				sz.cx = 0;
+			}
+
+			
+			if (pSize->cx < sz.cx) pSize->cx= sz.cx;
+			pSize->cy += sz.cy;
+
+			if (TEXT('\0') == *pszCursor) break;
+			else 
+			{
+				matched = 0;
+				pszBlock = pszCursor;
+			}
+		}
+	}
+	return TRUE;
+}
+
+static BOOL FindPrefferedSize(HWND hwnd, LPCTSTR pszText, LPCTSTR pszNewLine, SIZE *pSize)
+{
+	HDC hdc = GetDCEx(hwnd, NULL, DCX_CACHE | DCX_PARENTCLIP);
+	if (!hdc) return FALSE;
+	HFONT hf, hfo;
+	hf = (HFONT)SendMessageW(hwnd, WM_GETFONT, 0, 0L);
+	if (NULL == hf) hf = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
+	hfo = (NULL != hf) ? (HFONT)SelectObject(hdc, hf) : NULL;
+
+	BOOL br = FindPrefferedSizeEx(hdc, pszText, pszNewLine, pSize);
+	
+	if (hfo) SelectObject(hdc, hfo);
+	ReleaseDC(hwnd, hdc);
+
+	return br;
+}
+
+static INT_PTR SimpleHlp_OnInitDialog(HWND hdlg, HWND hFocus, LPARAM lParam)
+{
+	SIMPLEHELP *pHelp = (SIMPLEHELP*)lParam;
+	SIZE sizeCaption = { 0, 0 };
+	SIZE sizeText = { 0, 0 };
+	SIZE sizeClient = {0, 0};
+	SIZE sizeButton = {0, 0};
+
+	MLHELP *pmlh = (MLHELP*)calloc(1, sizeof(MLHELP));
+	if (pmlh)
+	{
+		pmlh->hOwner = pHelp->hOwner;
+		pmlh->uFlags = pHelp->uFlags;
+		pmlh->height = 0;
+		pmlh->width = 0;	
+	}
+    SetProp(hdlg, MLHELP_PROP, (HANDLE)pmlh);
+	
+	HWND hctrl;
+	if(pHelp)
+	{
+		
+		WCHAR szBuffer[4096] = {0};
+		if (pHelp->pszTitle) 
+		{
+			if (IS_INTRESOURCE(pHelp->pszCaption))
+			{
+				WASABI_API_LNGSTRINGW_BUF((INT)(INT_PTR)pHelp->pszTitle, szBuffer, ARRAYSIZE(szBuffer));
+				pHelp->pszTitle = szBuffer;
+			}
+			SetWindowText(hdlg, pHelp->pszTitle);
+		}
+
+		if (pHelp->pszCaption) 
+		{
+			if (IS_INTRESOURCE(pHelp->pszCaption))
+			{
+				WASABI_API_LNGSTRINGW_BUF((INT)(INT_PTR)pHelp->pszCaption, szBuffer, ARRAYSIZE(szBuffer));
+				pHelp->pszCaption = szBuffer;
+			}
+			
+			if (NULL != (hctrl = GetDlgItem(hdlg, IDC_LBL_CAPTION)))
+			{
+				FindPrefferedSize(hctrl, pHelp->pszCaption, TEXT("\n"), &sizeCaption);
+				SetWindowText(hctrl, pHelp->pszCaption);
+			}
+		}
+
+		if (pHelp->pszText) 
+		{
+			if (IS_INTRESOURCE(pHelp->pszText))
+			{
+				WCHAR form_szBuffer[4096] = {0}, *fszB = form_szBuffer, *szB = szBuffer;
+				WASABI_API_LNGSTRINGW_BUF((INT)(INT_PTR)pHelp->pszText, form_szBuffer, ARRAYSIZE(form_szBuffer));
+				while(fszB && *fszB){
+					if(*fszB == L'\n' && *CharPrevW(form_szBuffer,fszB) != L'\r'){
+						*szB = L'\r';
+						szB = CharNextW(szB);
+					}
+					*szB = *fszB;
+					szB = CharNextW(szB);
+					fszB = CharNextW(fszB);
+				}
+				*szB = 0;
+				pHelp->pszText = szBuffer;
+			}
+			if (NULL != (hctrl = GetDlgItem(hdlg, IDC_EDT_TEXT)))
+			{
+				FindPrefferedSize(hctrl, pHelp->pszText, TEXT("\r\n"), &sizeText);
+				SetWindowText(hctrl, pHelp->pszText);
+			}
+		}
+
+		if (0 == (HF_ALLOWRESIZE & pHelp->uFlags))
+		{
+			SetWindowLongPtrW(hdlg, GWL_EXSTYLE, GetWindowLongPtrW(hdlg, GWL_EXSTYLE) | WS_EX_DLGMODALFRAME);
+			SetWindowLongPtrW(hdlg, GWL_STYLE, (GetWindowLongPtrW(hdlg, GWL_STYLE) & ~WS_THICKFRAME) | DS_MODALFRAME);
+		}
+	}
+
+	if (sizeText.cx > 0) sizeText.cx += GetSystemMetrics(SM_CXVSCROLL);
+
+	sizeClient.cx = ((sizeText.cx > sizeCaption.cx) ? sizeText.cx : sizeCaption.cx) + 8;
+	if (sizeClient.cx < CLIENT_MIN_WIDTH) sizeClient.cx = CLIENT_MIN_WIDTH;
+	if (sizeClient.cx > CLIENT_MAX_WIDTH) sizeClient.cx = CLIENT_MAX_WIDTH;
+	sizeText.cx = sizeClient.cx;
+	sizeCaption.cx = sizeClient.cx;
+	sizeClient.cx += BORDER_SPACE * 2;
+
+	if (sizeCaption.cy > 0) sizeCaption.cy += 16;
+	if (sizeCaption.cy > CLIENT_MAX_HEIGHT/3) sizeCaption.cy = CLIENT_MAX_HEIGHT/3;
+	
+	if (sizeText.cy > 0) sizeText.cy += 16;
+	if (sizeText.cy < (CLIENT_MIN_HEIGHT - sizeCaption.cy)) sizeText.cy = (CLIENT_MIN_HEIGHT - sizeCaption.cy);
+	if (sizeText.cy > (CLIENT_MAX_HEIGHT - sizeCaption.cy)) sizeText.cy = (CLIENT_MAX_HEIGHT - sizeCaption.cy);
+	
+	if (NULL != (hctrl = GetDlgItem(hdlg, IDCANCEL)))
+	{
+		RECT rw;
+		if (GetWindowRect(hctrl, &rw)) { sizeButton.cx = rw.right - rw.left; sizeButton.cy = rw.bottom - rw.top; }
+	}
+
+	LONG top = BORDER_SPACE;
+	sizeClient.cy = BORDER_SPACE +sizeCaption.cy + sizeText.cy + 8 + sizeButton.cy + BORDER_SPACE;
+
+	if (NULL != (hctrl = GetDlgItem(hdlg, IDC_LBL_CAPTION)))
+	{
+		if (0 == sizeCaption.cy) EnableWindow(hctrl, FALSE);
+		SetWindowPos(hctrl, NULL, BORDER_SPACE, top, sizeCaption.cx, sizeCaption.cy, SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOOWNERZORDER);
+		top += sizeCaption.cy;
+	}
+
+	if (NULL != (hctrl = GetDlgItem(hdlg, IDC_EDT_TEXT)))
+	{
+		if (0 == sizeText.cy) EnableWindow(hctrl, FALSE);
+		SetWindowPos(hctrl, NULL, BORDER_SPACE, top, sizeText.cx, sizeText.cy, SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOOWNERZORDER);
+	}
+
+	if (NULL != (hctrl = GetDlgItem(hdlg, IDCANCEL)))
+	{
+		SetWindowPos(hctrl, NULL, sizeClient.cx - BORDER_SPACE - sizeButton.cx, sizeClient.cy - BORDER_SPACE - sizeButton.cy,
+						sizeButton.cx, sizeButton.cy, SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOOWNERZORDER);
+	}
+	
+	RECT rw, rc;
+	if (GetClientRect(hdlg, &rc) && GetWindowRect(hdlg, &rw))
+	{						
+		sizeClient.cx += ((rw.right - rw.left) - (rc.right - rc.left));
+		sizeClient.cy += ((rw.bottom - rw.top) - (rc.bottom - rc.top));
+	}
+
+	SetRect(&rw, 0, 0, 0, 0);
+	
+	if (pHelp->hOwner && GetWindowRect(pHelp->hOwner, &rw))
+	{		
+		rw.left += ((rw.right - rw.left) - sizeClient.cx)/2;
+		rw.top += ((rw.bottom - rw.top) - sizeClient.cy)/2;
+	}
+	UINT swpFlags = SWP_NOACTIVATE | SWP_NOOWNERZORDER | ((HF_DOMODAL & pHelp->uFlags) ? SWP_NOZORDER  : 0);
+	pmlh->width = sizeClient.cx;
+	pmlh->height = sizeClient.cy;
+	SetWindowPos(hdlg, HWND_TOP, rw.left, rw.top, sizeClient.cx, sizeClient.cy, swpFlags);
+	return FALSE;
+}
+
+static void SimpleHelp_OnDestroy(HWND hdlg)
+{
+	MLHELP *pHelp = GetHelp(hdlg);
+	RemoveProp(hdlg, MLHELP_PROP);
+	
+	if (pHelp && 0 == (HF_DOMODAL & pHelp->uFlags) && pHelp->hOwner && IsWindow(pHelp->hOwner)) 
+		SendMessageW(pHelp->hOwner, WM_PARENTNOTIFY, MAKEWPARAM(WM_DESTROY, 0), (LPARAM)hdlg);
+	if (pHelp) free(pHelp);
+}
+
+static void SimpleHlp_OnCommand(HWND hdlg, INT ctrlId, INT eventId, HWND hctrl)
+{
+	MLHELP *pHelp = GetHelp(hdlg);
+	switch(ctrlId)
+	{
+		case IDCANCEL:
+		case IDOK:
+			if (!pHelp || (HF_DOMODAL & pHelp->uFlags)) EndDialog(hdlg, ctrlId); 
+			else DestroyWindow(hdlg);
+			break;
+	}
+}
+
+/*static void SimpleHlp_OnWindowPosChanging(HWND hdlg, WINDOWPOS *pwp)
+{
+	MLHELP *pHelp = GetHelp(hdlg);
+	if (!pHelp) return;
+
+	if (0 == (SWP_NOSIZE & pwp->flags))
+	{
+		if (pwp->cx < CLIENT_MIN_WIDTH) pwp->cx = CLIENT_MIN_WIDTH;
+		if (pwp->cx > CLIENT_MAX_WIDTH) pwp->cx = CLIENT_MAX_WIDTH;
+		if (pwp->cy < CLIENT_MIN_HEIGHT) pwp->cy = CLIENT_MIN_HEIGHT;
+		if (pwp->cy > CLIENT_MAX_HEIGHT) pwp->cy = CLIENT_MAX_HEIGHT;
+	}
+}
+
+static void SimpleHlp_OnWindowPosChanged(HWND hdlg, WINDOWPOS *pwp)
+{
+	MLHELP *pHelp = GetHelp(hdlg);
+	if (!pHelp) return;
+	if (0 == (SWP_NOSIZE & pwp->flags))
+	{
+		RECT rw;
+		GetWindowRect(hdlg, &rw);
+		LONG dx = (rw.right - rw.left) - pHelp->width;
+		LONG dy = (rw.bottom - rw.top) - pHelp->height;
+		pHelp->width = rw.right - rw.left;
+		pHelp->height = rw.bottom - rw.top;
+
+		HDWP hdwp = BeginDeferWindowPos(3);
+		HWND hctrl;
+		if (hdwp && 0 != dx && NULL != (hctrl = GetDlgItem(hdlg, IDC_LBL_CAPTION)) && GetWindowRect(hctrl, &rw))
+		{
+			hdwp = DeferWindowPos(hdwp, hctrl, NULL, 0, 0, 
+				(rw.right - rw.left) + dx, (rw.bottom - rw.top), SWP_NOMOVE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS | SWP_NOREDRAW);
+			InvalidateRect(hctrl, NULL, TRUE);
+		}
+		if (hdwp && (0 != dx || 0 != dy) && 
+			NULL != (hctrl = GetDlgItem(hdlg, IDC_EDT_TEXT)) && GetWindowRect(hctrl, &rw))
+		{
+			hdwp = DeferWindowPos(hdwp, hctrl, NULL, 0, 0, 
+						(rw.right - rw.left) + dx, (rw.bottom - rw.top) + dy, SWP_NOMOVE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS | SWP_NOREDRAW);
+		}
+		if (hdwp && (0 != dx || 0 != dy) && 
+			NULL != (hctrl = GetDlgItem(hdlg, IDCANCEL)) && GetWindowRect(hctrl, &rw))
+		{
+			MapWindowPoints(HWND_DESKTOP, hdlg, (POINT*)&rw, 2);
+			hdwp = DeferWindowPos(hdwp, hctrl, NULL, rw.left + dx, rw.top + dy, 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS | SWP_NOREDRAW);
+		}
+		if (hdwp && EndDeferWindowPos(hdwp))
+		{	
+			RedrawWindow(hdlg, NULL, NULL, RDW_INVALIDATE | RDW_ERASE | RDW_INTERNALPAINT | RDW_ALLCHILDREN | RDW_UPDATENOW | RDW_ERASENOW); 
+		}
+	}
+}*/
+
+static INT_PTR CALLBACK SimpleHelp_DialogProc(HWND hdlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	switch(uMsg)
+	{
+		case WM_INITDIALOG:			return SimpleHlp_OnInitDialog(hdlg, (HWND)wParam, lParam);
+		case WM_DESTROY:			SimpleHelp_OnDestroy(hdlg); break;
+		case WM_COMMAND:			SimpleHlp_OnCommand(hdlg, LOWORD(wParam), HIWORD(wParam), (HWND)lParam); break;
+		/*case WM_WINDOWPOSCHANGING:	SimpleHlp_OnWindowPosChanging(hdlg, (WINDOWPOS*)lParam); return 0;
+		case WM_WINDOWPOSCHANGED:	SimpleHlp_OnWindowPosChanged(hdlg, (WINDOWPOS*)lParam); return 0;*/
+	}
+	return 0;
+}
\ No newline at end of file