gecko-dev/cmd/winfe/fmbutton.cpp

402 строки
12 KiB
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 "fmbutton.h"
#include "intl_csi.h"
#include "odctrl.h"
// This file is dedicated to form type button elements
// otherwise known as a button on windows and
// their implementation as requried by the XP layout
// library.
// Construction simply clears all members.
CFormButton::CFormButton()
{
// No widget yet.
m_pWidget = NULL;
}
// Destruction cleans out all members.
CFormButton::~CFormButton()
{
}
// 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 CFormButton::SetElement(LO_FormElementStruct *pFormElement)
{
// Call the base.
CFormElement::SetElement(pFormElement);
// Update the widget if present for correct callbacks.
if(m_pWidget) {
m_pWidget->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 CFormButton::SetContext(CAbstractCX *pCX)
{
// Call the base.
CFormElement::SetContext(pCX);
// Update the widget if present for correct callbacks.
if(m_pWidget) {
m_pWidget->RegisterContext(pCX->GetContext());
}
}
// Display the form element given the particular context we are in.
// Possibly only use a DC for representation, or have the
// window move.
void CFormButton::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);
HDC pDC = pDCCX->GetContextDC();
if(pDC && Rect.Width() && Rect.Height()) {
pDCCX->Display3DBox(Rect, pDCCX->ResolveDarkLineColor(), pDCCX->ResolveLightLineColor(), pDCCX->Pix2TwipsY(2));
// Draw the text inside the button.
// This is refiguring the width and height of the text.
char *pData = NULL;
if(GetElementMinimalData()) {
pData = (char *)GetElementMinimalData()->value;
}
if(pData) {
// Decide text color.
COLORREF rgbUseMe;
CyaFont *pMyFont;
rgbUseMe = pDCCX->ResolveTextColor(NULL);
// Output text.
int iBkMode = ::SetBkMode(pDC, TRANSPARENT);
COLORREF rgbTxtClr = ::SetTextColor(pDC, rgbUseMe);
pDCCX->SelectNetscapeFont( pDC, GetTextAttr(), pMyFont );
if(pMyFont != NULL) {
SIZE csz;
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC, pData, XP_STRLEN(pData), &csz);
// Center text.
int32 lWidth = Rect.Width() - csz.cx;
int32 lHeight = Rect.Height() -csz.cy;
int32 lX = Rect.left + lWidth / 2;
int32 lY = Rect.top + (lHeight / 2);
CIntlWin::TextOutWithCyaFont(
pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC,
CASTINT(lX),
CASTINT(lY),
pData,
XP_STRLEN(pData));
::SetTextColor(pDC, rgbTxtClr);
::SetBkMode(pDC, iBkMode);
pDCCX->ReleaseNetscapeFont( pDC, pMyFont );
}
}
pDCCX->ReleaseContextDC(pDC);
}
}
else if(GetContext()->IsWindowContext() && GetRaw()) {
MoveWindow(GetRaw(), Rect.left, Rect.top);
}
else {
// Is undefined....
ASSERT(0);
}
}
// Call the base.
CFormElement::DisplayFormElement(Rect);
}
// Destroy the widget (window) implemenation of the form.
void CFormButton::DestroyWidget()
{
// Free off the widget if present.
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 CFormButton::CreateWidget()
{
if(GetContext() && GetElement()) {
if(GetContext()->IsWindowContext() && VOID2CX(GetContext(), CPaneCX)->GetPane()) {
// Widget representation, create one.
ASSERT(m_pWidget == NULL);
m_pWidget = new CODNetscapeButton(GetContext()->GetContext(), GetElement());
if(m_pWidget == NULL) {
return;
}
// Create the widget, initially with a bad size and hidden.
BOOL bCreate = m_pWidget->Create("",
WS_CHILD | BS_OWNERDRAW,
CRect(1, 1, 0, 0),
CWnd::FromHandle(VOID2CX(GetContext(), CPaneCX)->GetPane()),
GetDynamicControlID());
if(!bCreate) {
DestroyWidget();
return;
}
// Set the font of the widget.
CyaFont *pMyFont;
LO_TextAttr *text_attr = GetElement()->text_attr;
CDCCX *pDCCX = VOID2CX(GetContext(), CDCCX);
// Measure what the size of the button should be.
HDC hDC = NULL;
if(GetRaw()) {
hDC = ::GetDC(GetRaw());
}
if(hDC) {
SIZE csz;
int32 lWidgetWidth = 0;
int32 lWidgetHeight = 0;
pDCCX->SelectNetscapeFont( hDC, GetTextAttr(), pMyFont );
if(pMyFont == NULL) {
::ReleaseDC(GetRaw(), hDC);
DestroyWidget();
return;
}
else {
// Must select the font while measuring.
SetWidgetFont(hDC, GetRaw());
text_attr->FE_Data = pMyFont;
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
hDC, "hi", 2, &csz);
// Determine what data will be shown.
char *pCaption = NULL;
if(GetElementMinimalData()) {
pCaption = (char *)GetElementMinimalData()->value;
}
// Measure it if present.
if(pCaption && *pCaption) {
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
hDC, pCaption, XP_STRLEN(pCaption), &csz);
}
lWidgetWidth = 3 * csz.cx / 2;
lWidgetHeight = 3 * csz.cy / 2;
if (GetElement()->width > lWidgetWidth) {
lWidgetWidth = GetElement()->width;
}
if (GetElement()->height > lWidgetHeight) {
lWidgetHeight = GetElement()->height;
}
// Done measuring text.
pDCCX->ReleaseNetscapeFont( hDC, pMyFont );
// Finally, size the widget to the width and height
// we have figured here.
::MoveWindow(GetRaw(), 1, 1, CASTINT(lWidgetWidth), CASTINT(lWidgetHeight), FALSE);
}
::ReleaseDC(GetRaw(), hDC);
hDC = NULL;
}
else {
// No DC, no widget.
DestroyWidget();
return;
}
}
else if(GetContext()->IsPureDCContext()) {
// Printing 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 CFormButton::UseCurrentData()
{
// Detect the context type for further action.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget) {
// Just set it to the value if present.
// No real concept of current or default data in a button yet.
char *pData = NULL;
if(GetElementMinimalData()) {
pData = (char *)GetElementMinimalData()->value;
}
if(pData && GetRaw()) {
::SetWindowText(GetRaw(), pData);
}
}
}
else if(GetContext()->IsPureDCContext()) {
// Do some printing specific stuff here...
}
}
}
// Copy the default data out of the layout struct into the form
// widget, or mark that you should represent using the default data.
void CFormButton::UseDefaultData()
{
// Detect the context type for further action.
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget) {
// Just set it to the value if present.
// No real concept of current or default data in a button yet.
char *pData = NULL;
if(GetElementMinimalData()) {
pData = (char *)GetElementMinimalData()->value;
}
if(pData && GetRaw()) {
::SetWindowText(GetRaw(), pData);
}
}
}
else if(GetContext()->IsPureDCContext()) {
// Do some printing specific stuff here...
}
}
}
// Fill in the layout size information in the layout struct regarding
// the dimensions of the widget.
void CFormButton::FillSizeInfo()
{
// Detect the context type for further action.
if(GetContext() && GetElement()) {
if(GetContext()->IsWindowContext()) {
if(GetRaw()) {
// Determine our window position.
CRect crWidget;
::GetWindowRect(GetRaw(), crWidget);
// This is a recreation of csz.cy in CreateWidget.
int32 csz_cy = 2 * crWidget.Height() / 3;
// Munge return coordinates a little for
// layout.
GetElement()->width = crWidget.Width();
GetElement()->height = crWidget.Height();
GetElement()->baseline = crWidget.Height() - csz_cy / 4 - 1;
}
else {
// Widget not present, give layout nothing.
GetElement()->width = 0;
GetElement()->height = 0;
GetElement()->baseline = 0;
}
}
else if(GetContext()->IsPureDCContext()) {
CDCCX *pCX = VOID2CX(GetContext(), CDCCX);
HDC pDC = pCX->GetAttribDC();
// Size the Button text.
int32 lWidth = 0;
int32 lHeight = 0;
int32 lBaseline = 0;
if(pDC) {
char *pData = NULL;
if(GetElementMinimalData()) {
pData = (char *)GetElementMinimalData()->value;
}
if(pData && *pData) {
// Size the text.
CyaFont *pMyFont;
pCX->SelectNetscapeFont( pDC, GetTextAttr(), pMyFont );
if (pMyFont) {
SIZE csz;
CIntlWin::GetTextExtentPointWithCyaFont(pMyFont,
INTL_GetCSIWinCSID(LO_GetDocumentCharacterSetInfo(GetContext()->GetContext())),
pDC, pData, XP_STRLEN(pData), &csz);
// Give some extra room.
// We'll need to know how to undo this in the display routine.
lWidth = 3 * csz.cx / 2;
lHeight = 3 * csz.cy / 2;
// Check and see if we should use preset sizes
if (GetElement()->width > lWidth) {
lWidth = GetElement()->width;
}
if (GetElement()->height > lHeight) {
lHeight = GetElement()->height;
}
lBaseline = lHeight - csz.cy / 4 - pCX->Pix2TwipsY(1);
pCX->ReleaseNetscapeFont( pDC, pMyFont );
}
}
// Done with the DC.
pCX->ReleaseContextDC(pDC);
}
// Fill in the layout information.
GetElement()->width = lWidth;
GetElement()->height = lHeight;
GetElement()->baseline = lBaseline;
}
}
}
// Copy the current data out of the form element back into the
// layout struct.
void CFormButton::UpdateCurrentData(BOOL bSubmit)
{
// There is literally no data to update for this element type right now.
// Perhaps one day....
if(GetContext()) {
if(GetContext()->IsWindowContext()) {
if(m_pWidget) {
}
else {
}
}
else if(GetContext()->IsPureDCContext()) {
// Do some printing specific stuff here...
}
}
}
HWND CFormButton::GetRaw()
{
return(m_pWidget ? m_pWidget->m_hWnd : NULL);
}