dhtmleditdemodlg.cpp

用visual c++写的一个超文本编辑器

		pi_Editor->Save();
		break;
	case IDC_BUTTON_LOAD:
		mCtrl_EditUrl.GetWindowText(s_Text);
		pi_Editor->Navigate(s_Text);
		break;
	case IDC_BUTTON_GOBACK:
		pi_Editor->GoBack();
		break;
	case IDC_BUTTON_GOFORWARD:
		pi_Editor->GoForward();
		break;
	case IDC_BUTTON_HELP:
		pi_Editor->NavigateToEmbeddedResource(_T("Html_Help"));
		break;
	case IDC_CHECK_DESIGN:
	case IDC_CHECK_SOURCE:
		pi_Editor->SetDisplayMode(mCtrl_CheckSource.GetCheck(), 
			                      mCtrl_CheckDesign.GetCheck());
		break;
	
	// ################## Text formatting ##################

	case IDC_BUTTON_FORECOLOR:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_FORECOLOR, _T("red"));
		break;
	case IDC_BUTTON_BACKCOLOR:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_BACKCOLOR, _T("#AAFFBB"));
		break;
	case IDC_BUTTON_REMOVEFORMAT:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_REMOVEFORMAT);
		break;
	case IDC_CHECK_BOLD:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_BOLD);
		break;
	case IDC_CHECK_ITALIC:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_ITALIC);
		break;
	case IDC_CHECK_UNDERLINE:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_UNDERLINE);
		break;
	case IDC_CHECK_LEFTALIGN:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_JUSTIFYLEFT);
		break;
	case IDC_CHECK_CENTERALIGN:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_JUSTIFYCENTER);
		break;
	case IDC_CHECK_RIGHTALIGN:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_JUSTIFYRIGHT);
		break;
	case IDC_CHECK_UNORDERLIST:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_UNORDERLIST);
		break;
	case IDC_CHECK_ORDERLIST:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_ORDERLIST);
		break;
	
	// ##################  Table  ##################

	case IDC_BUTTON_TABLE:
		// ---- comment out one of the following lines ! ----
		b_SelOK = pi_Editor->GetDocument()->PasteIntoSelection(s_NewTable);
	// 	b_SelOK = pi_Editor->GetDocument().InsertTable(2,2); // insert empty table 2 x 2 cells
		break;
	case IDC_BUTTON_TABLEPROP:
		SetTableProperties();
		break;
	case IDC_BUTTON_ROW_ABOVE:
		pi_Doc->InsertNewTableRow(FALSE);
		break;
	case IDC_BUTTON_ROW_BELOW:
		pi_Doc->InsertNewTableRow(TRUE);
		break;
	case IDC_BUTTON_COL_LEFT:
		pi_Doc->InsertNewTableColumn(FALSE);
		break;
	case IDC_BUTTON_COL_RIGHT:
		pi_Doc->InsertNewTableColumn(TRUE);
		break;
	case IDC_BUTTON_DELETE_ROW:
		i_Table.DeleteRow(i_Cell.GetRowIndex());
		break;		
	case IDC_BUTTON_DELETE_COL:
		i_Table.DeleteColumn(i_Cell.GetColIndex());
		break;
	case IDC_BUTTON_BGCOLOR_CELL:
		i_Cell.SetBgColor(_T("#CC8855"));
		break;
	case IDC_BUTTON_COMBINE:
		if (!i_Cell.Combine())
			MessageBox(_T("You can only combine cells which have a right neighbour."), _T("Error"), MB_ICONSTOP);
		break;		
	case IDC_BUTTON_SPLIT:
		i_Cell.Split();
		break;

	// ###############  other HTML stuff  ##################

	case IDC_BUTTON_BGCOLOR:
		pi_Doc->GetBody(TRUE).SetAttribute(_T("bgcolor"), _T("#FFDDAA"));
		break;
	case IDC_BUTTON_HR:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_HORIZONTALLINE);
		break;
	case IDC_BUTTON_HRPROP:
		SetHRproperties();
		break;
	case IDC_BUTTON_IMAGE:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_IMAGE);
		break;
	case IDC_BUTTON_LINK:
		b_SelOK = pi_Editor->ExecSetCommand(IDM_HYPERLINK);
		break;
	case IDC_BUTTON_NOBR:
		b_SelOK = pi_Doc->AddToSelection(_T("<Nobr>"), _T("</Nobr>"));
		break;
	}

	if (!b_SelOK) 
		MessageBox(_T("The selection or cursor position is invalid for this function!"), _T("Error"), MB_ICONSTOP);
}


// This message is posted from cHtmlEditor::cMsieWnd
// Set the checkboxes according to the current selection / cursor position
// This function is called with every keypress of the user so it is speed optimized
void CDHtmlEditDemoDlg::OnUpdateUI(WPARAM wParam)
{
	if (wParam == HTMLEDIT_INIT_DONE)
	{
		/*
		Put any code here you want to execute after the HTML Editor is ready initialized
		For example any code that loads content into the editor
		*/
		return;
	}

	// Called after every CleanUp (e.g. after Navigation)
	if (wParam == HTMLEDIT_SETDEFAULT)
	{
		cHtmlDocument *pi_Doc = pi_Editor->GetDocument();
		pi_Doc->SetDocumentDefault(_T("BODY"),  cHtmlStyle::E_FontSize,    _T("14"));
		pi_Doc->SetDocumentDefault(_T("TABLE"), cHtmlStyle::E_FontSize,    _T("14"));
		pi_Doc->SetDocumentDefault(_T("BODY"),  cHtmlStyle::E_FontFamily,  _T("Arial"));
		pi_Doc->SetDocumentDefault(_T("TABLE"), cHtmlStyle::E_FontFamily,  _T("Arial"));
		
		cHtmlElement i_Body = pi_Doc->GetBody(FALSE);
		if (i_Body.Valid())
		{
			i_Body.SetAttribute(_T("topMargin"),  _T("2"));
			i_Body.SetAttribute(_T("leftMargin"), _T("3"));
		}
		return;
	}

	if (wParam == HTMLEDIT_KILLFOCUS)
	{
		/*
		Put any code here you want to execute when the Html Editor loses focus
		For example any code to automatically save user changes
		*/
		return;
	}

	// Display the new URL in Edit box after a navigation took place
	// Replace Mime encoding ("%20" --> " ")
	if (wParam == HTMLEDIT_NAVIGATED)
	{
		mCtrl_EditUrl.SetWindowText(cMisc::DecodeMime(pi_Editor->GetDocument()->GetUrl()));
		return;
	}

	// illegal message
	if (wParam != HTMLEDIT_UPDATE_UI)
		return;

	// ---------------- Enable / Disable -------------------

	       UINT u32_CurDisplay  = pi_Editor->GetDisplayMode();
	static UINT u32_LastDisplay = 0;

    if (u32_LastDisplay != u32_CurDisplay) // do nothing if unchanged
	{
	    u32_LastDisplay   =  u32_CurDisplay;
		BOOL b_DesignMode = (u32_CurDisplay == IDM_EDITMODE);
		BOOL b_BrowseMode = (u32_CurDisplay == IDM_BROWSEMODE);
		BOOL b_SourceMode = (u32_CurDisplay == IDM_VIEWSOURCE);
		
		mCtrl_CheckBold       .EnableWindow(b_DesignMode);
		mCtrl_CheckItalic     .EnableWindow(b_DesignMode);
		mCtrl_CheckUnderline  .EnableWindow(b_DesignMode);
		mCtrl_CheckLeftAlign  .EnableWindow(b_DesignMode);
		mCtrl_CheckCenterAlign.EnableWindow(b_DesignMode);
		mCtrl_CheckRightAlign .EnableWindow(b_DesignMode);
		mCtrl_CheckOrderList  .EnableWindow(b_DesignMode);
		mCtrl_CheckUnOrderList.EnableWindow(b_DesignMode);
		mCtrl_ComboFontName   .EnableWindow(b_DesignMode);
		mCtrl_ComboFontSize   .EnableWindow(b_DesignMode);
		mCtrl_BgText          .EnableWindow(b_DesignMode);
		mCtrl_BgBody          .EnableWindow(b_DesignMode);
		mCtrl_BgCell          .EnableWindow(b_DesignMode);
		mCtrl_ColLeft         .EnableWindow(b_DesignMode);
		mCtrl_ColRight        .EnableWindow(b_DesignMode);
		mCtrl_Combine         .EnableWindow(b_DesignMode);
		mCtrl_DeleteCol       .EnableWindow(b_DesignMode);
		mCtrl_DeleteRow       .EnableWindow(b_DesignMode);
		mCtrl_ForeColor       .EnableWindow(b_DesignMode);
		mCtrl_Hr              .EnableWindow(b_DesignMode);
		mCtrl_HrProp          .EnableWindow(b_DesignMode);
		mCtrl_Image           .EnableWindow(b_DesignMode);
		mCtrl_Link            .EnableWindow(b_DesignMode);
		mCtrl_NoBr            .EnableWindow(b_DesignMode);
		mCtrl_RemoveFormat    .EnableWindow(b_DesignMode);
		mCtrl_RowAbove        .EnableWindow(b_DesignMode);
		mCtrl_RowBelow        .EnableWindow(b_DesignMode);
		mCtrl_Split           .EnableWindow(b_DesignMode);
		mCtrl_Table           .EnableWindow(b_DesignMode);
		mCtrl_TableProp       .EnableWindow(b_DesignMode);
		
		mCtrl_EditUrl         .EnableWindow(b_BrowseMode);
		mCtrl_Load            .EnableWindow(b_BrowseMode);
		mCtrl_GoBack          .EnableWindow(b_BrowseMode);
		mCtrl_GoForward       .EnableWindow(b_BrowseMode);
		mCtrl_StaticUrl       .EnableWindow(b_BrowseMode);

		mCtrl_Save            .EnableWindow(!b_SourceMode);
		mCtrl_Help            .EnableWindow(!b_SourceMode);
		mCtrl_Clear           .EnableWindow(!b_SourceMode);
		mCtrl_CheckDesign     .EnableWindow(!b_SourceMode);
	}

	// ---------- Set dynamic checkboxes (buttons) ---------

	// Arrays for all checkboxes, their state and their MSIE commands
	static UINT    u32_bCmd[] = { IDM_VIEWSOURCE,     IDM_EDITMODE,       IDM_BOLD,         IDM_ITALIC,         IDM_UNDERLINE,         IDM_JUSTIFYLEFT,       IDM_JUSTIFYCENTER,       IDM_JUSTIFYRIGHT,       IDM_ORDERLIST,         IDM_UNORDERLIST         };
	static CButton *p_Check[] = { &mCtrl_CheckSource, &mCtrl_CheckDesign, &mCtrl_CheckBold, &mCtrl_CheckItalic, &mCtrl_CheckUnderline, &mCtrl_CheckLeftAlign, &mCtrl_CheckCenterAlign, &mCtrl_CheckRightAlign, &mCtrl_CheckOrderList, &mCtrl_CheckUnOrderList };

	ASSERT(sizeof(u32_bCmd) == sizeof(mb_CheckStatus)); // illegal _CheckBoxCount

	// Set the checkboxes according to the current selection / cursor position
	for (UINT b=0; b<_CheckBoxCount; b++)
	{
		BOOL b_Active = (pi_Editor->QueryStatus(u32_bCmd[b]) & OLECMDF_LATCHED) > 0;
		if  (b_Active == mb_CheckStatus[b])
			continue;

		mb_CheckStatus[b] = b_Active;
		p_Check[b]->SetCheck(b_Active);
	}

	if (u32_CurDisplay != IDM_EDITMODE)
		return;

	// ---------- Set dynamic comboboxes (font) ---------

	static UINT      u32_cCmd[]    = { IDM_FONTNAME,         IDM_FONTSIZE_STYLE   };
	static CComboBox *p_Combo[]    = { &mCtrl_ComboFontName, &mCtrl_ComboFontSize };
	static BOOL       b_DropList[] = { TRUE, /*DropList*/    FALSE  /*DropDown*/  };

	ASSERT(sizeof(u32_cCmd) == sizeof(ms_ComboStatus)); // illegal _ComboBoxCount

	// Set font name and size according to the current selection / cursor position
	CString s_Value;
	for (UINT c=0; c<_ComboBoxCount; c++)
	{
		if (pi_Editor->ExecGetCommandStr(u32_cCmd[c], &s_Value))
		{
			if (s_Value == ms_ComboStatus[c] || s_Value.GetLength() == 0)
				continue;

			if (p_Combo[c]->GetDroppedState()) // If combobox not currently dropped down
				continue;
			
			ms_ComboStatus[c] = s_Value;

			// Depending on the style of the ComboBox we must choose another function here
			if (b_DropList[c]) p_Combo [c]->SelectString(0, s_Value);
			else               p_Combo [c]->SetWindowText(s_Value);
		}
	}
}


// set properties of a <HR> element (horizontal line)
void CDHtmlEditDemoDlg::SetHRproperties()
{
	cHtmlDocument *pi_Doc = pi_Editor->GetDocument();
	cHtmlHR         i_HR  = pi_Doc->GetSelection();

	if (!i_HR.Valid())
	{
		MessageBox(_T("Please select a <HR> element. (horizontal line)"), _T("Error"), MB_ICONSTOP);
		return;
	}

	CHrProperties i_Prop(this);
	i_Prop.ms_Color   = i_HR.GetProperty(cHtmlHR::E_Color);
	i_Prop.ms_Width   = i_HR.GetProperty(cHtmlHR::E_Width);
	i_Prop.ms_Size    = i_HR.GetProperty(cHtmlHR::E_Size);
	i_Prop.ms32_Shade = i_HR.GetShade() ? 1 : 0;

	if (IDOK == i_Prop.DoModal())
	{
		i_HR.SetProperty(cHtmlHR::E_Color, i_Prop.ms_Color);
		i_HR.SetProperty(cHtmlHR::E_Width, i_Prop.ms_Width);
		i_HR.SetProperty(cHtmlHR::E_Size,  i_Prop.ms_Size);

		i_HR.SetShade(i_Prop.ms32_Shade == 1);
	}
}

// set properties of a table
void CDHtmlEditDemoDlg::SetTableProperties()
{
	cHtmlElement i_Sel = pi_Editor->GetDocument()->GetSelection();
	cHtmlTable i_Table = i_Sel.FindParent(_T("TABLE"));
	if (!i_Table.Valid())
	{
		MessageBox(_T("Please set the cursor into a table!"), _T("Error"), MB_ICONSTOP);
		return;
	}

	cHtmlStyle i_Style = i_Table.GetStyle();

	CTableProperties i_Prop(this);

	i_Prop.mu32_Rules     = i_Table.GetBorderRules();
	i_Prop.ms_BackgColor  = i_Table.GetBgColor();
	i_Prop.ms_BorderColor = i_Table.GetBorderColor();
	i_Prop.ms_BorderWidth = i_Table.GetBorderWidth();
	i_Prop.ms_CellSpacing = i_Table.GetCellSpacing();
	i_Prop.ms_CellPadding = i_Table.GetCellPadding();
	i_Prop.ms_Width       = i_Style.GetProperty(cHtmlStyle::E_Width);
	i_Prop.ms_Height      = i_Style.GetProperty(cHtmlStyle::E_Height);
	i_Prop.ms_Width. Replace(_T("px"), _T(""));
	i_Prop.ms_Height.Replace(_T("px"), _T(""));

	if (IDOK == i_Prop.DoModal())
	{
		i_Table.SetBorderRules((cHtmlTable::eRules)i_Prop.mu32_Rules);
		i_Table.SetBgColor    (i_Prop.ms_BackgColor);
		i_Table.SetBorderColor(i_Prop.ms_BorderColor);
		i_Table.SetBorderWidth(i_Prop.ms_BorderWidth);
		i_Table.SetCellSpacing(i_Prop.ms_CellSpacing);
		i_Table.SetCellPadding(i_Prop.ms_CellPadding);

		if (i_Prop.ms_Width. GetLength() && i_Prop.ms_Width. Find(_T("%")) < 0) 
			i_Prop.ms_Width  += _T("px");
		if (i_Prop.ms_Height.GetLength() && i_Prop.ms_Height.Find(_T("%")) < 0) 
			i_Prop.ms_Height += _T("px");
		
		i_Style.SetProperty(cHtmlStyle::E_Width,  i_Prop.ms_Width);
		i_Style.SetProperty(cHtmlStyle::E_Height, i_Prop.ms_Height);
	}
}