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