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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- #include "stdafx.h"
-
- #include "fmrdonly.h"
- #include "odctrl.h"
- #include "intl_csi.h"
- // This file is dedicated to form type read only elements
- // otherwise known as edit fields on windows and
- // their implementation as requried by the XP layout
- // library.
-
- // Construction simply clears all members.
- CFormReadOnly::CFormReadOnly()
- {
- // No widget yet.
- m_pWidget = NULL;
- }
-
- // Destruction cleans out all members.
- CFormReadOnly::~CFormReadOnly()
- {
- }
-
- // How to set the LO form element.
- // This may change during the lifetime of an instance, so use this
- // to update all referencing values.
- void CFormReadOnly::SetElement(LO_FormElementStruct *pFormElement)
- {
- // Call the base.
- CFormElement::SetElement(pFormElement);
-
- // Let the widget know the element.
- if(m_pWidget) {
- m_pWidget->SetContext(GetContext() ? GetContext()->GetContext() : NULL, GetElement());
- }
- }
-
- // Set the owning context.
- // Use this to determine what context we live in and how we should
- // represent ourself (DC or window).
- void CFormReadOnly::SetContext(CAbstractCX *pCX)
- {
- // Call the base.
- CFormElement::SetContext(pCX);
-
- // Have our widget update if present.
- if(m_pWidget) {
- m_pWidget->SetContext(GetContext() ? GetContext()->GetContext() : NULL, GetElement());
- }
- }
-
- // Display the form element given the particular context we are in.
- // Possibly only use a DC for representation, or have the
- // window move.
- void CFormReadOnly::DisplayFormElement(LTRB& Rect)
- {
- // Display only has meaning if our context is a device context.
- if(GetContext() && GetContext()->IsDCContext()) {
- // Further, need to detect how we're going to be drawing ourselves.
- if(GetContext()->IsPureDCContext()) {
- // Only works from a DC, needs a GDI drawing representation.
- CDCCX *pDCCX = VOID2CX(GetContext(), CDCCX);
- }
- else if(GetContext()->IsWindowContext()) {
- MoveWindow(m_pWidget->m_hWnd, Rect.left, Rect.top + EDIT_SPACE / 2);
- }
- else {
- // Is undefined....
- ASSERT(0);
- }
- }
-
- // Call the base.
- CFormElement::DisplayFormElement(Rect);
- }
-
- // Destroy the widget (window) implemenation of the form.
- void CFormReadOnly::DestroyWidget()
- {
- // Get rid of the widget if around.
- if(m_pWidget) {
- m_pWidget->DestroyWindow();
- delete m_pWidget;
- m_pWidget = NULL;
- }
- }
-
- // Create the widget (window) implementation of the form
- // but DO NOT DISPLAY.
- void CFormReadOnly::CreateWidget()
- {
- if(GetContext() && GetElement()) {
- if(GetContext()->IsWindowContext() && VOID2CX(GetContext(), CPaneCX)->GetPane()) {
- // Need a widget representation.
- ASSERT(m_pWidget == NULL);
- m_pWidget = new CODNetscapeEdit;
- if(m_pWidget == NULL) {
- return;
- }
-
- // Inform widget of context and element.
- m_pWidget->SetContext(GetContext()->GetContext(), GetElement());
-
- #ifdef XP_WIN16
- // On 16 bits, we need to set the segment of the widget before creation.
- HINSTANCE hSegment = GetSegment();
- if(hSegment) {
- m_pWidget->SetInstance(hSegment);
- }
- else {
- delete m_pWidget;
- m_pWidget = NULL;
- return;
- }
- #endif
-
- // The style of the widget to be created.
- DWORD dwStyle = WS_CHILD | WS_BORDER | ES_LEFT | ES_AUTOHSCROLL | ES_READONLY;
-
- // Create the widget, hidden, and with a bad size.
- BOOL bCreate =
- #ifdef XP_WIN32
- m_pWidget->CreateEx(WS_EX_CLIENTEDGE,
- _T("EDIT"),
- NULL,
- dwStyle,
- 1, 1, 0, 0,
- VOID2CX(GetContext(), CPaneCX)->GetPane(),
- (HMENU)GetDynamicControlID(),
- NULL);
- #else
- m_pWidget->Create(dwStyle, CRect(1, 1, 0, 0),
- CWnd::FromHandle(VOID2CX(GetContext(), CPaneCX)->GetPane()),
- GetDynamicControlID());
- #endif
-
- if(!bCreate) {
- delete m_pWidget;
- m_pWidget = NULL;
- return;
- }
-
- // Next, need to size the widget.
- // Obtain a font.
- // Measure some text.
- CDC *pDC = m_pWidget->GetDC();
- if(pDC) {
- // Textmetrics won't work unless we specifically select the font.
- CyaFont *pMyFont;
- LO_TextAttr *text_attr = GetElement()->text_attr;
- VOID2CX(GetContext(), CWinCX)->SelectNetscapeFont( pDC->GetSafeHdc(), GetTextAttr(), pMyFont );
- // Text metrics won't work unless we select the font.
-
- if (pMyFont) {
- SetWidgetFont(pDC->GetSafeHdc(), m_pWidget->m_hWnd);
- text_attr->FE_Data = pMyFont;
-
- // Default length will be for "hi".
- int32 lLength = 2;
-
- // Now figure up the width and height we would like.
- int32 lWidgetWidth = pMyFont->GetMaxWidth();
- int32 lWidgetHeight = pMyFont->GetHeight() + pMyFont->GetHeight() / 2;
-
- // See if we can get the minimal data.
- if(GetElementMinimalData() && GetElementMinimalData()->value) {
- // Use length of text, exactly.
- char *pDefault = (char *)GetElementMinimalData()->value;
-
- lLength = XP_STRLEN(pDefault);
- SIZE csz;
- CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
- INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
- pDC->GetSafeHdc(), pDefault, CASTINT(lLength), &csz);
-
- // Use this width.
- lWidgetWidth += csz.cx;
- }
- else {
- // Use an average width.
- lWidgetWidth += lLength * pMyFont->GetMeanWidth();
- }
-
- VOID2CX(GetContext(), CWinCX)->ReleaseNetscapeFont( pDC->GetSafeHdc(), pMyFont );
- m_pWidget->MoveWindow(1, 1, CASTINT(lWidgetWidth), CASTINT(lWidgetHeight), FALSE);
- m_pWidget->ReleaseDC(pDC);
- }
- else {
- m_pWidget->ReleaseDC(pDC);
- DestroyWidget();
- return;
- }
- }
- else {
- // No DC, no widget.
- DestroyWidget();
- return;
- }
- }
- else if(GetContext()->IsPureDCContext()) {
- // Need a drawn representation.
- }
- }
- }
-
- // Copy the current data out of the layout struct into the form
- // widget, or mark that you should represent using the current data.
- void CFormReadOnly::UseCurrentData()
- {
- // Detect context type and do the right thing.
- if(GetContext()) {
- if(GetContext()->IsWindowContext()) {
- // Need a widget.
- if(m_pWidget) {
- // Just set it to the value if present.
- // No real concept of current or default data in a read only yet.
- char *pData = NULL;
- if(GetElementMinimalData()) {
- pData = (char *)GetElementMinimalData()->value;
- }
- if(pData) {
- // We have to SetContext to the widget before we SetWindowText
- // Otherwise, the widget don't know what csid the text is.
- m_pWidget->SetContext(GetContext()->GetContext(), GetElement());
-
- m_pWidget->SetWindowText(pData);
- }
- }
- }
- else if(GetContext()->IsPureDCContext()) {
- // Printing/metafile
- }
- }
- }
-
- // Copy the default data out of the layout struct into the form
- // widget, or mark that you should represent using the default data.
- void CFormReadOnly::UseDefaultData()
- {
- // Detect context type and do the right thing.
- if(GetContext()) {
- if(GetContext()->IsWindowContext()) {
- // Need a widget.
- if(m_pWidget) {
- // Just set it to the value if present.
- // No real concept of current or default data in a read only yet.
- char *pData = NULL;
- if(GetElementMinimalData()) {
- pData = (char *)GetElementMinimalData()->value;
- }
- if(pData) {
- // We have to SetContext to the widget before we SetWindowText
- // Otherwise, the widget don't know what csid the text is.
- m_pWidget->SetContext(GetContext()->GetContext(), GetElement());
-
- m_pWidget->SetWindowText(pData);
- }
- }
- }
- else if(GetContext()->IsPureDCContext()) {
- // Printing/metafile
- }
- }
- }
-
- // Fill in the layout size information in the layout struct regarding
- // the dimensions of the widget.
- void CFormReadOnly::FillSizeInfo()
- {
- // Detect context type and do the right thing.
- if(GetContext() && GetElement()) {
- if(GetContext()->IsWindowContext()) {
- // Need a widget.
- if(m_pWidget) {
- // Determine our window position.
- CRect crRect;
- m_pWidget->GetWindowRect(crRect);
-
- // Munge the coordinate a little for layout.
- // We'll have to know how to decode this information
- // in the display routine (by half).
- GetElement()->width = crRect.Width();
- GetElement()->height = crRect.Height() + EDIT_SPACE;
- GetElement()->border_vert_space = EDIT_SPACE/2;
-
- // Baseline needs text metric information.
- GetElement()->baseline = GetElement()->height; // ugly default in case of failure below.
- CDC *pDC = m_pWidget->GetDC();
- if(pDC) {
- // Need to specifically select the font before calling GetTextMetrics.
- CyaFont *pMyFont;
- VOID2CX(GetContext(), CPaneCX)->SelectNetscapeFont( pDC->GetSafeHdc(), GetTextAttr(), pMyFont );
- if (pMyFont) {
- SetWidgetFont(pDC->GetSafeHdc(), m_pWidget->m_hWnd);
- GetElement()->baseline -= (pMyFont->GetHeight() / 2 + pMyFont->GetDescent()) / 2;
- VOID2CX(GetContext(), CPaneCX)->ReleaseNetscapeFont( pDC->GetSafeHdc(), pMyFont );
- m_pWidget->ReleaseDC(pDC);
- }
- else {
- m_pWidget->ReleaseDC(pDC);
- DestroyWidget();
- return;
- }
- }
- }
- else {
- // No widget, tell layout nothing.
- GetElement()->width = 0;
- GetElement()->height = 0;
- GetElement()->baseline = 0;
- }
- }
- else if(GetContext()->IsPureDCContext()) {
- // Do some printing specific stuff here...
- GetElement()->width = 0;
- GetElement()->height = 0;
- GetElement()->baseline = 0;
- }
- }
- }
-
- // Copy the current data out of the form element back into the
- // layout struct.
- void CFormReadOnly::UpdateCurrentData()
- {
- // There is literally no data to update for this element type right now.
- // Perhaps one day....
- if(GetContext()) {
- if(GetContext()->IsWindowContext()) {
- // Need a widget.
- if(m_pWidget) {
- }
- else {
- }
- }
- else if(GetContext()->IsPureDCContext()) {
- // Printing/metafile
- }
- }
- }
-
- HWND CFormReadOnly::GetRaw()
- {
- return(m_pWidget ? m_pWidget->m_hWnd : NULL);
- }
-