gecko-dev/cmd/winfe/fmfile.cpp

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C++
Executable File

/* -*- 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 "fmfile.h"
#include "odctrl.h"
#include "intl_csi.h"
// This file is dedicated to form type select one elements
// otherwise known as list boxes on windows and
// their implementation as requried by the XP layout
// library.
// Construction simply clears all members.
CFormFile::CFormFile()
{
// No widgets yet.
m_pWidget = NULL;
m_pBrowse = NULL;
m_pWidgetOverride = NULL;
}
// Destruction cleans out all members.
CFormFile::~CFormFile()
{
}
// 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 CFormFile::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());
}
// Update the widget if present for correct callbacks.
if(m_pBrowse) {
m_pBrowse->RegisterForm(GetElement());
}
}
// Set the owning context.
// Use this to determine what context we live in and how we should
// represent ourself (DC or window).
void CFormFile::SetContext(CAbstractCX *pCX)
{
// Call the base.
CFormElement::SetContext(pCX);
// Let the widget know the context.
if(m_pWidget) {
m_pWidget->SetContext(GetContext() ? GetContext()->GetContext() : NULL, GetElement());
}
// Update the widget if present for correct callbacks.
if(m_pBrowse) {
m_pBrowse->RegisterContext(GetContext() ? GetContext()->GetContext() : NULL);
}
}
// Display the form element given the particular context we are in.
// Possibly only use a DC for representation, or have the
// window move.
void CFormFile::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()) {
// Is a window, needs a widget/window representation.
MoveWindow(m_pWidget->m_hWnd, Rect.left, Rect.top + EDIT_SPACE / 2);
CRect crWidget;
m_pWidget->GetWindowRect(crWidget);
MoveWindow(m_pBrowse->m_hWnd, Rect.left + 2 + (crWidget.right - crWidget.left), Rect.top + 1);
}
else {
// Is undefined....
ASSERT(0);
}
}
// CALL THE BASE, TWICE!
// Fake out the base class by dynamically switching
// what is reported with GetRaw().
CFormElement::DisplayFormElement(Rect);
if(m_pBrowse) {
m_pWidgetOverride = m_pBrowse;
CFormElement::DisplayFormElement(Rect);
m_pWidgetOverride = NULL;
}
}
// Destroy the widget (window) implemenation of the form.
void CFormFile::DestroyWidget()
{
// Destroy any widgets around.
if(m_pWidget) {
m_pWidget->DestroyWindow();
delete m_pWidget;
m_pWidget = NULL;
}
if(m_pBrowse) {
m_pBrowse->DestroyWindow();
delete m_pBrowse;
m_pBrowse = NULL;
}
}
// Create the widget (window) implementation of the form
// but DO NOT DISPLAY.
void CFormFile::CreateWidget()
{
// Detect context type.
if(GetContext() && GetElement()) {
if(GetContext()->IsWindowContext() && VOID2CX(GetContext(), CPaneCX)->GetPane()) {
// Widget representation.
// Text entry field first.
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
// Decide the style of the widget.
DWORD dwStyle = WS_CHILD | WS_BORDER | ES_LEFT | ES_AUTOHSCROLL;
// 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, size the widget.
CDC *pDC = m_pWidget->GetDC();
if(pDC) {
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 == NULL) {
m_pWidget->ReleaseDC(pDC);
DestroyWidget();
return;
}
else {
// Default length is 20
int32 lLength = 20;
SetWidgetFont(pDC->GetSafeHdc(), m_pWidget->m_hWnd);
text_attr->FE_Data = pMyFont;
// Figure up width and height we would like.
int32 lWidgetWidth = pMyFont->GetMaxWidth();
int32 lWidgetHeight = pMyFont->GetHeight() + pMyFont->GetHeight() / 2;
// See if we can measure the default text, and/or
// set up the size and size limits.
if(GetElementTextData()) {
if(GetElementTextData()->size > 0) {
// Use provided size.
lLength = GetElementTextData()->size;
// Use average width.
lWidgetWidth += lLength * pMyFont->GetMeanWidth();
}
else if(GetElementTextData()->default_text) {
// Use length of text, exactly.
char *pDefault = (char *)GetElementTextData()->default_text;
lLength = XP_STRLEN(pDefault);
// CSize csz = CIntlWin::GetTextExtent(0, pDC->GetSafeHdc(), pDefault, CASTINT(lLength));
SIZE csz;
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC->GetSafeHdc(), pDefault, CASTINT(lLength), &csz);
// Use this width.
lWidgetWidth += csz.cx;
}
// Hold to the maximum size limit, and set it.
if(GetElementTextData()->max_size >= 0) {
m_pWidget->LimitText(CASTINT(GetElementTextData()->max_size));
}
}
// Restore old font selection.
VOID2CX(GetContext(), CWinCX)->ReleaseNetscapeFont( pDC->GetSafeHdc(), pMyFont );
m_pWidget->MoveWindow(1, 1, CASTINT(lWidgetWidth), CASTINT(lWidgetHeight), FALSE);
}
m_pWidget->ReleaseDC(pDC);
}
else {
DestroyWidget();
return;
}
// 2nd widget coming up, the browse button.
m_pBrowse = new CODNetscapeButton(GetContext()->GetContext(), GetElement());
if(m_pBrowse == NULL) {
DestroyWidget();
return;
}
// Create with a bad size and hidden.
dwStyle = WS_CHILD | BS_PUSHBUTTON;
bCreate = m_pBrowse->Create("",
dwStyle,
CRect(1, 1, 0, 0),
CWnd::FromHandle(VOID2CX(GetContext(), CPaneCX)->GetPane()),
GetDynamicControlID());
if(!bCreate) {
delete m_pBrowse;
m_pBrowse = NULL;
DestroyWidget();
return;
}
// Font in the button.
// Measure what the size of the button should be.
pDC = m_pBrowse->GetDC();
if(pDC) {
CyaFont *pMyFont;
VOID2CX(GetContext(), CWinCX)->SelectNetscapeFont( pDC->GetSafeHdc(), GetTextAttr(), pMyFont );
if (pMyFont) {
int32 lWidgetWidth = 0;
int32 lWidgetHeight = 0;
SetWidgetFont(pDC->GetSafeHdc(), m_pBrowse->m_hWnd);
// Determine caption text.
char *pCaption = szLoadString(IDS_BROWSE_BUTTON);
if(GetElementMinimalData() && GetElementMinimalData()->value) {
pCaption = (char *)GetElementMinimalData()->value;
}
SIZE csz;
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC->GetSafeHdc(), pCaption, XP_STRLEN(pCaption), &csz);
// csz = CIntlWin::GetTextExtent(0, pDC->GetSafeHdc(), pCaption, XP_STRLEN(pCaption));
lWidgetWidth = 3 * csz.cx / 2;
lWidgetHeight = 3 * csz.cy / 2;
// Done measureing.
VOID2CX(GetContext(), CWinCX)->ReleaseNetscapeFont( pDC->GetSafeHdc(), pMyFont );
m_pBrowse->MoveWindow(1, 1, CASTINT(lWidgetWidth), CASTINT(lWidgetHeight), FALSE);
m_pBrowse->ReleaseDC(pDC);
}
else {
m_pBrowse->ReleaseDC(pDC);
DestroyWidget();
return;
}
// Move it.
// Tell it what edit control is associated.
m_pBrowse->RegisterEdit(m_pWidget);
}
else {
DestroyWidget();
return;
}
}
else if(GetContext()->IsPureDCContext()) {
// DC 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 CFormFile::UseCurrentData()
{
// Detect context type and do the right thing.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget) {
// Determine the current text to set.
char *pCurrent = "";
if(GetElementTextData() && GetElementTextData()->current_text) {
pCurrent = (char *)GetElementTextData()->current_text;
}
// 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(pCurrent);
}
if(m_pBrowse) {
// Set the button caption.
char *pCaption = szLoadString(IDS_BROWSE_BUTTON);
if(GetElementMinimalData() && GetElementMinimalData()->value) {
pCaption = (char *)GetElementMinimalData()->value;
}
m_pBrowse->SetWindowText(pCaption);
}
}
else if(GetContext()->IsPureDCContext()) {
}
}
}
// Copy the default data out of the layout struct into the form
// widget, or mark that you should represent using the default data.
void CFormFile::UseDefaultData()
{
// Detect context type and do the right thing.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget) {
// Determine the default text to set.
char *pDefault = "";
if(GetElementTextData() && GetElementTextData()->default_text) {
pDefault = (char *)GetElementTextData()->default_text;
}
// 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(pDefault);
}
if(m_pBrowse) {
// Set the button caption.
char *pCaption = szLoadString(IDS_BROWSE_BUTTON);
if(GetElementMinimalData() && GetElementMinimalData()->value) {
pCaption = (char *)GetElementMinimalData()->value;
}
m_pBrowse->SetWindowText(pCaption);
}
}
else if(GetContext()->IsPureDCContext()) {
}
}
}
// Fill in the layout size information in the layout struct regarding
// the dimensions of the widget.
void CFormFile::FillSizeInfo()
{
// Detect context type and do the right thing.
if(GetContext() && GetElement()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget) {
// Calculate the size we need.
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;
}
}
// Now for the second part.
// Add the width of browse button and take the max height.
// Whichever height we take, controls the baseline.
CRect crBrowse;
m_pBrowse->GetWindowRect(crBrowse);
// This is a recreation of csz.cy in CreateWidget.
int32 csz_cy = 2 * crBrowse.Height() / 3;
// Munge return coordinates a little for
// layout. We have to know how to reverse
// these in Display.
GetElement()->width += crBrowse.Width() + 2;
GetElement()->border_horiz_space = 1;
if(crBrowse.Height() >= GetElement()->height) {
GetElement()->height = crBrowse.Height();
GetElement()->baseline = crBrowse.Height() - csz_cy / 4 - 1;
}
}
else {
// Nope.
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 CFormFile::UpdateCurrentData(BOOL bSubmit)
{
// Detect context type and do the right thing.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget && ::IsWindow(m_pWidget->GetSafeHwnd()) && GetElementTextData()) {
// Free off any current text.
if(GetElementTextData()->current_text) {
XP_FREE(GetElementTextData()->current_text);
GetElementTextData()->current_text = NULL;
}
// See if we've got anything.
int32 lLength = m_pWidget->GetWindowTextLength();
if(lLength > 0) {
GetElementTextData()->current_text = (XP_Block)XP_ALLOC(lLength + 1);
if(GetElementTextData()->current_text) {
m_pWidget->GetWindowText((char *)GetElementTextData()->current_text, CASTINT(lLength + 1));
}
}
}
}
else if(GetContext()->IsPureDCContext()) {
}
}
}
HWND CFormFile::GetRaw()
{
// We may be returning an overriding value instead of our main
// widget.
if(m_pWidgetOverride) {
return(m_pWidgetOverride->m_hWnd);
}
// Return only our main widget here (the interesting one).
// The edit field, not the button.
return(m_pWidget ? m_pWidget->m_hWnd : NULL);
}
CWnd *CFormFile::GetSecondaryWidget()
{
// Return the button widget so that click events can be
// processed correctly.
return(m_pBrowse);
}