RetroZilla/webshell/tests/viewer/windows/nsButton.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsButton.h"
#include "nsToolkit.h"
#include "nsColor.h"
#include "nsGUIEvent.h"
#include "nsString.h"
#include "nsStringUtil.h"
#include <windows.h>
#include "nsILookAndFeel.h"
#include "nsWidgetsCID.h"
#include "nsIComponentManager.h"
#include "nsIDeviceContext.h"
#include "nsIFontMetrics.h"
static NS_DEFINE_IID(kLookAndFeelCID, NS_LOOKANDFEEL_CID);
//-------------------------------------------------------------------------
nsresult
NS_NewButton(nsIButton** aControl)
{
NS_PRECONDITION(aControl, "null OUT ptr");
if (nsnull == aControl) {
return NS_ERROR_NULL_POINTER;
}
nsButton* it = new nsButton;
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(it);
// set the state flags (if any are provided)
*aControl = (nsIButton*)it;
return NS_OK;
}
NS_IMPL_ADDREF(nsButton)
NS_IMPL_RELEASE(nsButton)
//-------------------------------------------------------------------------
//
// nsButton constructor
//
//-------------------------------------------------------------------------
nsButton::nsButton() : nsWindow() , nsIButton()
{
}
//-------------------------------------------------------------------------
//
// nsButton destructor
//
//-------------------------------------------------------------------------
nsButton::~nsButton()
{
}
/**
* Implement the standard QueryInterface for NS_IWIDGET_IID and NS_ISUPPORTS_IID
* @modify gpk 8/4/98
* @param aIID The name of the class implementing the method
* @param _classiiddef The name of the #define symbol that defines the IID
* for the class (e.g. NS_ISUPPORTS_IID)
*
*/
nsresult nsButton::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
static NS_DEFINE_IID(kIButton, NS_IBUTTON_IID);
if (aIID.Equals(kIButton)) {
*aInstancePtr = (void*) ((nsIButton*)this);
NS_ADDREF_THIS();
return NS_OK;
}
return nsWindow::QueryInterface(aIID,aInstancePtr);
}
//-------------------------------------------------------------------------
//
// Set this button label
//
//-------------------------------------------------------------------------
NS_METHOD nsButton::SetLabel(const nsString& aText)
{
mLabel = aText;
if (NULL == mWnd) {
return NS_ERROR_FAILURE;
}
VERIFY(::SetWindowText(mWnd, NS_LossyConvertUCS2toASCII(aText).get()));
return NS_OK;
}
//-------------------------------------------------------------------------
//
// Get this button label
//
//-------------------------------------------------------------------------
NS_METHOD nsButton::GetLabel(nsString& aBuffer)
{
aBuffer = mLabel;
/*int actualSize = ::GetWindowTextLength(mWnd)+1;
NS_ALLOC_CHAR_BUF(label, 256, actualSize);
::GetWindowText(mWnd, label, actualSize);
aBuffer.SetLength(0);
aBuffer.Append(label);
NS_FREE_CHAR_BUF(label);
*/
return NS_OK;
}
//-------------------------------------------------------------------------
//
// move, paint, resizes message - ignore
//
//-------------------------------------------------------------------------
PRBool nsButton::OnMove(PRInt32, PRInt32)
{
return PR_FALSE;
}
PRBool nsButton::OnPaint()
{
//printf("** nsButton::OnPaint **\n");
return PR_FALSE;
}
PRBool nsButton::OnResize(nsRect &aWindowRect)
{
return PR_FALSE;
}
//-------------------------------------------------------------------------
//
// return the window class name and initialize the class if needed
//
//-------------------------------------------------------------------------
LPCWSTR nsButton::WindowClassW()
{
return L"BUTTON";
}
//-------------------------------------------------------------------------
//
// return the window class name and initialize the class if needed
//
//-------------------------------------------------------------------------
LPCTSTR nsButton::WindowClass()
{
return "BUTTON";
}
//-------------------------------------------------------------------------
//
// return window styles
//
//-------------------------------------------------------------------------
DWORD nsButton::WindowStyle()
{
return WS_CHILD | WS_CLIPSIBLINGS;
}
//-------------------------------------------------------------------------
//
// return window extended styles
//
//-------------------------------------------------------------------------
DWORD nsButton::WindowExStyle()
{
return 0;
}
/**
* Renders the Button for Printing
*
**/
NS_METHOD nsButton::Paint(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect)
{
float appUnits;
float devUnits;
float scale;
nsIDeviceContext * context;
aRenderingContext.GetDeviceContext(context);
context->GetCanonicalPixelScale(scale);
devUnits = context->AppUnitsToDevUnits();
appUnits = context->DevUnitsToAppUnits();
nsRect rect;
GetBoundsAppUnits(rect, appUnits);
aRenderingContext.SetColor(NS_RGB(0,0,0));
nscolor bgColor = NS_RGB(255,255,255);
nscolor fgColor = NS_RGB(0,0,0);
nscolor hltColor = NS_RGB(240,240,240);
nscolor sdwColor = NS_RGB(128,128,128);
{
nsCOMPtr<nsILookAndFeel> lookAndFeel = do_GetService(kLookAndFeelCID);
if (lookAndFeel) {
lookAndFeel->GetColor(nsILookAndFeel::eColor_WidgetBackground, bgColor);
lookAndFeel->GetColor(nsILookAndFeel::eColor_WidgetForeground, fgColor);
lookAndFeel->GetColor(nsILookAndFeel::eColor_Widget3DShadow, sdwColor);
lookAndFeel->GetColor(nsILookAndFeel::eColor_Widget3DHighlight, hltColor);
}
}
aRenderingContext.SetColor(bgColor);
aRenderingContext.FillRect(rect);
/*aRenderingContext.SetColor(bgColor);
for (int i=0;i<int(scale);i++) {
aRenderingContext.DrawRect(rect);
rect.x += 3;
rect.y += 3;
rect.width -= 6;
rect.height -= 6;
}*/
nscoord onePixel = nscoord(scale);
nscoord twoPixels = nscoord(scale*2);
rect.x += onePixel;
rect.y += onePixel;
rect.width -= twoPixels;
rect.height -= twoPixels;
nscoord right = rect.x+rect.width;
nscoord bottom = rect.y+rect.height;
// Draw Left & Top
aRenderingContext.SetColor(NS_RGB(225,225,225));
DrawScaledLine(aRenderingContext, rect.x, rect.y, right, rect.y, scale, appUnits, PR_TRUE); // top
DrawScaledLine(aRenderingContext, rect.x, rect.y, rect.x, bottom, scale, appUnits, PR_FALSE); // left
//DrawScaledLine(aRenderingContext, rect.x+onePixel, rect.y+onePixel, right-onePixel, rect.y+onePixel, scale, appUnits, PR_TRUE); // top + 1
//DrawScaledLine(aRenderingContext, rect.x+onePixel, rect.y+onePixel, rect.x+onePixel, bottom-onePixel, scale, appUnits, PR_FALSE); // left + 1
// Draw Right & Bottom
aRenderingContext.SetColor(NS_RGB(128,128,128));
DrawScaledLine(aRenderingContext, right, rect.y+onePixel, right, bottom, scale, appUnits, PR_FALSE); // right
DrawScaledLine(aRenderingContext, rect.x+onePixel, bottom, right, bottom, scale, appUnits, PR_TRUE); // bottom
//DrawScaledLine(aRenderingContext, right-onePixel, rect.y+twoPixels, right-onePixel, bottom, scale, appUnits, PR_FALSE); // right + 1
//DrawScaledLine(aRenderingContext, rect.x+twoPixels, bottom-onePixel, right, bottom-onePixel, scale, appUnits, PR_TRUE); // bottom + 1
nsIFontMetrics* metrics;
context->GetMetricsFor(*mFont, metrics);
aRenderingContext.SetFont(metrics);
nscoord textWidth;
nscoord textHeight;
aRenderingContext.GetWidth(mLabel, textWidth);
metrics->GetMaxAscent(textHeight);
nscoord x = ((rect.width - textWidth) / 2) + rect.x;
nscoord y = ((rect.height - textHeight) / 2) + rect.y;
aRenderingContext.DrawString(mLabel, x, y + textHeight);
NS_RELEASE(context);
return NS_OK;
}