gecko-dev/cmd/winfe/fmselone.cpp

595 строки
20 KiB
C++
Исходник Обычный вид История

1998-03-28 05:44:41 +03:00
/* -*- 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 "odctrl.h"
#include "fmselone.h"
#include "intl_csi.h"
// This file is dedicated to form type select one elements
// otherwise known as combo boxes on windows and
// their implementation as requried by the XP layout
// library.
// Construction simply clears all members.
CFormSelectOne::CFormSelectOne()
{
// No widget representation yet.
m_pWidget = NULL;
}
// Destruction cleans out all members.
CFormSelectOne::~CFormSelectOne()
{
}
// 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 CFormSelectOne::SetElement(LO_FormElementStruct *pFormElement)
{
// Call the base.
CFormElement::SetElement(pFormElement);
// Have our widget update if present.
if(m_pWidget != NULL) {
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 CFormSelectOne::SetContext(CAbstractCX *pCX)
{
// Call the base.
CFormElement::SetContext(pCX);
// Have our widget update if present.
if(m_pWidget != NULL) {
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 CFormSelectOne::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);
LTRB r(Rect.left, Rect.top, Rect.right, Rect.bottom);
// Compensate for munging in FillSizeInfo.
r.Inflate(0, -1 * pDCCX->Pix2TwipsY(EDIT_SPACE));
// Do something simple.
pDCCX->Display3DBox(r, pDCCX->ResolveLightLineColor(), pDCCX->ResolveDarkLineColor(), pDCCX->Pix2TwipsY(2));
r.Inflate(0, -1 * pDCCX->Pix2TwipsY(2));
HDC pDC = pDCCX->GetContextDC();
if(pDC) {
// Draw the down arrow on the right.
r.right -= pDCCX->Pix2TwipsX(sysInfo.m_iScrollWidth);
LTRB BButton(r.right, r.top - pDCCX->Pix2TwipsY(2), r.right + pDCCX->Pix2TwipsX(sysInfo.m_iScrollWidth), r.bottom + pDCCX->Pix2TwipsY(2));
pDCCX->Display3DBox(BButton, RGB(0, 0, 0), pDCCX->ResolveDarkLineColor(), pDCCX->Pix2TwipsY(2));
BButton.Inflate(-1 * pDCCX->Pix2TwipsX(2), -1 * pDCCX->Pix2TwipsY(2));
// Arrow.
POINT aPoints[3];
aPoints[0].x = CASTINT(BButton.left + BButton.Width() / 4);
aPoints[0].y = CASTINT(BButton.top + BButton.Height() / 3);
aPoints[1].x = CASTINT(BButton.left + BButton.Width() / 2);
aPoints[1].y = CASTINT(BButton.top + 2 * BButton.Height() / 3);
aPoints[2].x = CASTINT(BButton.left + 3 * BButton.Width() / 4);
aPoints[2].y = CASTINT(BButton.top + BButton.Height() / 3);
TRY {
HPEN cpBlack = ::CreatePen(PS_SOLID, 0, RGB(0, 0, 0));
HBRUSH cbBlack;
HBRUSH pOldBrush = NULL;
if(cbBlack = CreateSolidBrush(RGB(0, 0, 0))) {
pOldBrush = (HBRUSH)::SelectObject(pDC, cbBlack);
}
HPEN pOldPen = (HPEN)::SelectObject(pDC, cpBlack);
int iOldMode = ::SetPolyFillMode(pDC, ALTERNATE);
::Polygon(pDC, aPoints, 3);
::SetPolyFillMode(pDC, iOldMode);
if(pOldPen) {
::SelectObject(pDC, pOldPen);
}
if(pOldBrush) {
::SelectObject(pDC, pOldBrush);
}
VERIFY(::DeleteObject(cpBlack));
VERIFY(::DeleteObject(cbBlack));
}
CATCH(CException, e) {
// Can't create pen.
}
END_CATCH
// Output visible text.
if(GetElementSelectData()) {
CyaFont *pMyFont;
VOID2CX(GetContext(), CDCCX)->SelectNetscapeFont( pDC, GetTextAttr(), pMyFont );
if (pMyFont) {
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)GetElementSelectData()->options;
if(pOptionData) {
char *pText = NULL;
int32 lCounter = 0;
// As a default for the text, use the first entry.
// Sometimes nothing is selected, and then we don't output anything....
// This will get retset by the loop below if something actually
// does exist.
if(GetElementSelectData()->option_cnt > 0) {
pText = (char *)pOptionData[0].text_value;
}
while(lCounter < GetElementSelectData()->option_cnt) {
if(pOptionData[lCounter].selected) {
// Show this one.
pText = (char *)pOptionData[lCounter].text_value;
break;
}
lCounter++;
}
// Do we have anything to show?
if(pText) {
// Need to modify the coordinates a little bit.
r.left += pMyFont->GetMeanWidth();
int32 lCenterY = (r.Height() - pMyFont->GetHeight()) / 2;
// Transparent please.
int iOldBk = ::SetBkMode(pDC, TRANSPARENT);
CIntlWin::ExtTextOut(
((GetContext()->GetContext()) ?
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext()))
: 0) ,
pDC,
CASTINT(r.left),
CASTINT(r.top + lCenterY),
ETO_CLIPPED,
CRect(CASTINT(r.left), CASTINT(r.top), CASTINT(r.right), CASTINT(r.bottom)),
pText,
XP_STRLEN(pText),
NULL);
// Restore mode.
::SetBkMode(pDC, iOldBk);
}
}
VOID2CX(GetContext(), CDCCX)->ReleaseNetscapeFont( pDC, pMyFont );
}
else {
m_pWidget->ReleaseDC(CDC::FromHandle(pDC));
DestroyWidget();
}
}
// Done with DC.
pDCCX->ReleaseContextDC(pDC);
}
}
else if(GetContext()->IsWindowContext()) {
MoveWindow(m_pWidget->m_hWnd, Rect.left, Rect.top + EDIT_SPACE);
}
else {
// Is undefined....
ASSERT(0);
}
}
// Call the base.
CFormElement::DisplayFormElement(Rect);
}
// Destroy the widget (window) implemenation of the form.
void CFormSelectOne::DestroyWidget()
{
// Get rid of the widget.
if(m_pWidget != NULL) {
m_pWidget->DestroyWindow();
delete m_pWidget;
m_pWidget = NULL;
}
}
// Create the widget (window) implementation of the form
// but DO NOT DISPLAY.
void CFormSelectOne::CreateWidget()
{
if(GetContext() && GetElement()) {
if(GetContext()->IsWindowContext() && VOID2CX(GetContext(), CPaneCX)->GetPane()) {
// For a window context, we use a widget representation.
// Allocate.
ASSERT(m_pWidget == NULL);
m_pWidget = new CODMochaComboBox();
if(m_pWidget == NULL) {
return;
}
// Inform the widget of the context and form element (for mocha).
m_pWidget->SetContext(GetContext()->GetContext(), GetElement());
// Create the widget, initially hidden with a bad size
if(!m_pWidget->Create(WS_CHILD | WS_BORDER | WS_VSCROLL | CBS_AUTOHSCROLL | CBS_DROPDOWNLIST | CBS_OWNERDRAWFIXED,
CRect(0, 0, 1, 1),
CWnd::FromHandle(VOID2CX(GetContext(), CPaneCX)->GetPane()),
GetDynamicControlID())) {
delete m_pWidget;
m_pWidget = NULL;
return;
}
// Prepare to measure text.
CDC *pDC = m_pWidget->GetDC();
HDC hdc = pDC->GetSafeHdc();
if(pDC) {
CyaFont *pMyFont;
VOID2CX(GetContext(), CDCCX)->SelectNetscapeFont( hdc, GetTextAttr(), pMyFont );
int32 lWidgetWidth;
int32 lWidgetHeight = 0;
if (pMyFont) {
SetWidgetFont(pDC->GetSafeHdc(), m_pWidget->m_hWnd);
GetElement()->text_attr->FE_Data = pMyFont;
SIZE csz;
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
hdc, "hi", 2, &csz);
lWidgetWidth = csz.cx;
lWidgetHeight = 0;
// Count the maximum width by looping through all entries.
if(GetElementSelectData()) {
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)GetElementSelectData()->options;
if(pOptionData) {
char *pCurrent = NULL;
int32 lCounter = 0;
while(lCounter < GetElementSelectData()->option_cnt) {
pCurrent = (char *)pOptionData[lCounter].text_value;
if(pCurrent && *pCurrent) {
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
hdc, pCurrent, XP_STRLEN(pCurrent), &csz);
if(csz.cx > lWidgetWidth) {
lWidgetWidth = csz.cx;
}
}
// Servicing next in line now.
lCounter++;
}
}
lWidgetHeight = GetElementSelectData()->option_cnt;
}
lWidgetWidth += 2 * sysInfo.m_iScrollWidth;
// Figure the maximum height we'll allow.
// NOTE: This algorithm could use some work (legacy code).
if(lWidgetHeight > 20) {
lWidgetHeight = 20;
}
lWidgetHeight += 2;
lWidgetHeight *= csz.cy;
// Done measuring text width.
VOID2CX(GetContext(), CDCCX)->ReleaseNetscapeFont( hdc, pMyFont );
m_pWidget->ReleaseDC(pDC);
}
else {
m_pWidget->ReleaseDC(pDC);
DestroyWidget();
return;
}
if (GetElement()->width > lWidgetWidth) {
lWidgetWidth = GetElement()->width;
}
if (GetElement()->height > lWidgetHeight) {
lWidgetHeight = GetElement()->height;
}
// Finally, size the widget to the width and height
// we have figured here.
m_pWidget->MoveWindow(1, 1, CASTINT(lWidgetWidth), CASTINT(lWidgetHeight), FALSE);
}
else {
// No DC, no widget.
DestroyWidget();
return;
}
}
else if(GetContext()->IsPureDCContext()) {
// For a print/metafile context we use a drawn representation.
// Figure out what size it will be and save the data.
}
}
}
// Copy the current data out of the layout struct into the form
// widget, or mark that you should represent using the current data.
void CFormSelectOne::UseCurrentData()
{
// Detect context type and copy appropriate data
// according to representation.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
// Only continue if we've got a widget to fill at all.
if(m_pWidget) {
// Remove all entries.
m_pWidget->ResetContent();
// Loop through and copy the data into the widget.
LO_LockLayout();
lo_FormElementSelectData * selectData = GetElementSelectData();
if(selectData) {
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)selectData->options;
if(pOptionData) {
char *pCurrent = NULL;
int32 lCounter = 0;
while(lCounter < selectData->option_cnt) {
pCurrent = (char *)pOptionData[lCounter].text_value;
// Add it to the list.
m_pWidget->AddString(pCurrent ? pCurrent : "");
// Is it selected?
if(pOptionData[lCounter].selected) {
m_pWidget->SetCurSel(CASTINT(lCounter));
}
// Servicing next in line now.
lCounter++;
}
}
}
LO_UnlockLayout();
}
}
else if(GetContext()->IsPureDCContext()) {
// For a print/metafile context we use a drawn representation.
// So obviously we need to do something other than fill in a widget's data.
}
}
}
// Copy the default data out of the layout struct into the form
// widget, or mark that you should represent using the default data.
void CFormSelectOne::UseDefaultData()
{
// Detect context type and copy appropriate data
// according to representation.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
// Only continue if we've got a widget to fill at all.
if(m_pWidget) {
// Remove all entries.
m_pWidget->ResetContent();
// Loop through and copy the data into the widget.
LO_LockLayout();
lo_FormElementSelectData * selectData = GetElementSelectData();
if(selectData) {
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)selectData->options;
if(pOptionData) {
char *pCurrent = NULL;
int32 lCounter = 0;
while(lCounter < selectData->option_cnt) {
pCurrent = (char *)pOptionData[lCounter].text_value;
// Add it to the list.
m_pWidget->AddString(pCurrent ? pCurrent : "");
// Restore default selection.
pOptionData[lCounter].selected = pOptionData[lCounter].def_selected;
// Is it selected?
if(pOptionData[lCounter].selected) {
m_pWidget->SetCurSel(CASTINT(lCounter));
}
// Servicing next in line now.
lCounter++;
}
}
}
LO_UnlockLayout();
}
}
else if(GetContext()->IsPureDCContext()) {
// Loop through and set the current data to reflect the default data.
if(GetElementSelectData()) {
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)GetElementSelectData()->options;
if(pOptionData) {
int32 lCounter = 0;
while(lCounter < GetElementSelectData()->option_cnt) {
// Restore default selection.
pOptionData[lCounter].selected = pOptionData[lCounter].def_selected;
// Servicing next in line now.
lCounter++;
}
}
}
}
}
}
// Fill in the layout size information in the layout struct regarding
// the dimensions of the widget.
void CFormSelectOne::FillSizeInfo()
{
// Detect context type and copy appropriate data
// according to representation.
if(GetContext() && GetElement()) {
if(GetContext()->IsWindowContext()) {
// Only continue if we've got a widget to fill at all.
if(m_pWidget) {
// Determine our window position.
CRect crRect;
m_pWidget->GetWindowRect(crRect);
// Munge it a little for layout.
// We'll have to know how to decode
// this information in the display
// routine.
GetElement()->width = crRect.Width();
GetElement()->height = crRect.Height() + 2 * EDIT_SPACE;
GetElement()->border_vert_space = EDIT_SPACE;
GetElement()->baseline = 3 * GetElement()->height / 4;
}
else {
// Widget not present, give LAYOUT nothing.
GetElement()->width = 0;
GetElement()->height = 0;
GetElement()->baseline = 0;
}
}
else if(GetContext()->IsPureDCContext()) {
// Need to figure size of combo box.
int32 lWidth = 0;
int32 lHeight = 0;
int32 lBaseline = 0;
CDCCX *pDCCX = VOID2CX(GetContext(), CDCCX);
HDC pDC = pDCCX->GetAttribDC();
if(pDC) {
CyaFont *pMyFont;
pDCCX->SelectNetscapeFont( pDC, GetTextAttr(), pMyFont );
if (pMyFont) {
SIZE csz;
csz.cx = csz.cy = 0;
// Default if no other text.
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC, "hi", 2, &csz);
lWidth = csz.cx;
// Get max width by looping through and measuring all entries.
if(GetElementSelectData()) {
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)GetElementSelectData()->options;
if(pOptionData) {
char *pCurrent = NULL;
int32 lCounter = 0;
while(lCounter < GetElementSelectData()->option_cnt) {
pCurrent = (char *)pOptionData[lCounter].text_value;
if(pCurrent && *pCurrent) {
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC, pCurrent, XP_STRLEN(pCurrent), &csz);
if(csz.cx > lWidth) {
lWidth = csz.cx;
}
}
lCounter++;
}
}
}
// Add some size information.
lWidth += 2 * pDCCX->Pix2TwipsX(sysInfo.m_iScrollWidth);
lWidth += pMyFont->GetMeanWidth();
lHeight = csz.cy;
lHeight += csz.cy / 2;
lHeight += 2 * pDCCX->Pix2TwipsY(EDIT_SPACE);
// Check and see if we should use preset sizes
if (GetElement()->width > lWidth) {
lWidth = GetElement()->width;
}
if (GetElement()->height > lHeight) {
lHeight = GetElement()->height;
}
lBaseline = 3 * lHeight / 4;
// Restore the font.
pDCCX->ReleaseNetscapeFont( pDC, pMyFont );
}
else {
m_pWidget->ReleaseDC(CDC::FromHandle(pDC));
DestroyWidget();
}
// Done with DC.
pDCCX->ReleaseContextDC(pDC);
}
// Let layout know what we know.
GetElement()->width = lWidth;
GetElement()->height = lHeight;
GetElement()->baseline = lBaseline;
}
}
}
// Copy the current data out of the form element back into the
// layout struct.
void CFormSelectOne::UpdateCurrentData()
{
// Detect context type and copy appropriate data
// according to representation.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
// Only continue if we've got a widget and data space to fill at all.
if(m_pWidget && ::IsWindow(m_pWidget->GetSafeHwnd()) && GetElementSelectData()) {
int32 lSelected = m_pWidget->GetCurSel();
lo_FormElementOptionData *pOptionData = (lo_FormElementOptionData *)GetElementSelectData()->options;
if(pOptionData) {
// Clear out all old selections.
int32 lCounter = 0;
while(lCounter < GetElementSelectData()->option_cnt) {
pOptionData[lCounter].selected = FALSE;
lCounter++;
}
// Save this into the layout struct.
if(lSelected != CB_ERR) {
pOptionData[lSelected].selected = TRUE;
}
}
}
}
else if(GetContext()->IsPureDCContext()) {
// For a print/metafile context we use a drawn representation.
// So obviously we need to do something other than fill in a widget's data.
}
}
}
HWND CFormSelectOne::GetRaw()
{
return(m_pWidget ? m_pWidget->m_hWnd : NULL);
}