зеркало из https://github.com/mozilla/pjs.git
264 строки
6.7 KiB
C++
264 строки
6.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#include "nsLabel.h"
|
|
#include "nsILabel.h"
|
|
#include "nsToolkit.h"
|
|
#include "nsColor.h"
|
|
#include "nsGUIEvent.h"
|
|
#include "nsString.h"
|
|
#include "nsStringUtil.h"
|
|
#include "nsIFontMetrics.h"
|
|
#include "nsIDeviceContext.h"
|
|
#include <windows.h>
|
|
|
|
//-------------------------------------------------------------------------
|
|
nsresult
|
|
NS_NewLabel(nsILabel** aControl)
|
|
{
|
|
NS_PRECONDITION(aControl, "null OUT ptr");
|
|
if (nsnull == aControl) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsLabel* it = new nsLabel;
|
|
if (!it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
NS_ADDREF(it);
|
|
*aControl = (nsILabel*)it;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMPL_ADDREF(nsLabel)
|
|
NS_IMPL_RELEASE(nsLabel)
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// nsLabel constructor
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsLabel::nsLabel() : nsWindow(), nsILabel()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
mAlignment = eAlign_Left;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
NS_METHOD nsLabel::PreCreateWidget(nsWidgetInitData *aInitData)
|
|
{
|
|
if (nsnull != aInitData) {
|
|
nsLabelInitData* data = (nsLabelInitData *) aInitData;
|
|
mAlignment = data->mAlignment;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// nsLabel destructor
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsLabel::~nsLabel()
|
|
{
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// Query interface implementation
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsresult nsLabel::QueryInterface(const nsIID& aIID, void** aInstancePtr)
|
|
{
|
|
nsresult result = nsWindow::QueryInterface(aIID, aInstancePtr);
|
|
|
|
static NS_DEFINE_IID(kILabelIID, NS_ILABEL_IID);
|
|
if (result == NS_NOINTERFACE && aIID.Equals(kILabelIID)) {
|
|
*aInstancePtr = (void*) ((nsILabel*)this);
|
|
NS_ADDREF_THIS();
|
|
result = NS_OK;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// Set this button label
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
NS_METHOD nsLabel::SetAlignment(nsLabelAlignment aAlignment)
|
|
{
|
|
mAlignment = aAlignment;
|
|
return NS_OK;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// Set this button label
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
NS_METHOD nsLabel::SetLabel(const nsString& aText)
|
|
{
|
|
NS_ALLOC_STR_BUF(label, aText, 256);
|
|
VERIFY(::SetWindowText(mWnd, label));
|
|
NS_FREE_STR_BUF(label);
|
|
return NS_OK;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// Get this button label
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
NS_METHOD nsLabel::GetLabel(nsString& aBuffer)
|
|
{
|
|
int actualSize = ::GetWindowTextLength(mWnd)+1;
|
|
NS_ALLOC_CHAR_BUF(label, 256, actualSize);
|
|
::GetWindowText(mWnd, label, actualSize);
|
|
aBuffer.SetLength(0);
|
|
aBuffer.AppendWithConversion(label);
|
|
NS_FREE_CHAR_BUF(label);
|
|
return NS_OK;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// move, paint, resizes message - ignore
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
PRBool nsLabel::OnMove(PRInt32, PRInt32)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool nsLabel::OnPaint()
|
|
{
|
|
//printf("** nsLabel::OnPaint **\n");
|
|
return PR_FALSE;
|
|
}
|
|
|
|
PRBool nsLabel::OnResize(nsRect &aWindowRect)
|
|
{
|
|
return PR_FALSE;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// return the window class name and initialize the class if needed
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
LPCTSTR nsLabel::WindowClass()
|
|
{
|
|
return "STATIC";
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// return window styles
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
DWORD nsLabel::WindowStyle()
|
|
{
|
|
DWORD style = WS_CHILD | WS_CLIPSIBLINGS;
|
|
switch (mAlignment) {
|
|
case eAlign_Right : style |= SS_RIGHT; break;
|
|
case eAlign_Left : style |= SS_LEFT; break;
|
|
case eAlign_Center: style |= SS_CENTER;break;
|
|
default :
|
|
style |= SS_LEFT;
|
|
}
|
|
return style;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// return window extended styles
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
DWORD nsLabel::WindowExStyle()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// get position/dimensions
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
|
|
NS_METHOD nsLabel::GetBounds(nsRect &aRect)
|
|
{
|
|
return nsWindow::GetBounds(aRect);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
NS_METHOD nsLabel::GetPreferredSize(PRInt32& aWidth, PRInt32& aHeight)
|
|
{
|
|
if (nsnull == mContext) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
//nsIFontMetrics * fm = GetFont();;
|
|
// mDeviceContext->GetMetricsFor(mFont, &fm);
|
|
|
|
nsIFontMetrics* metrics;
|
|
mContext->GetMetricsFor(*mFont, metrics);
|
|
|
|
nsString text;
|
|
GetLabel(text);
|
|
|
|
nsIRenderingContext *cx;
|
|
mContext->CreateRenderingContext(this, cx);
|
|
cx->SetFont(metrics);
|
|
nscoord string_height, string_width;
|
|
metrics->GetHeight(string_height);
|
|
cx->GetWidth(text, string_width);
|
|
NS_RELEASE(cx);
|
|
NS_RELEASE(metrics);
|
|
|
|
if (mPreferredWidth != 0) {
|
|
aWidth = mPreferredWidth;
|
|
} else {
|
|
aWidth = string_width+8;
|
|
}
|
|
|
|
if (mPreferredHeight != 0) {
|
|
aHeight = mPreferredHeight;
|
|
} else {
|
|
aHeight = string_height+8;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
NS_METHOD nsLabel::SetPreferredSize(PRInt32 aWidth, PRInt32 aHeight)
|
|
{
|
|
mPreferredWidth = aWidth;
|
|
mPreferredHeight = aHeight;
|
|
return NS_OK;
|
|
}
|
|
|