253 lines
6.8 KiB
C++
253 lines
6.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsRadioButton.h"
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#include "nsToolkit.h"
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#include "nsColor.h"
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#include "nsGUIEvent.h"
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#include "nsStringUtil.h"
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#include <windows.h>
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#include "nsILookAndFeel.h"
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#include "nsWidgetsCID.h"
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#include "nsIComponentManager.h"
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#include "nsIDeviceContext.h"
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NS_IMPL_ADDREF(nsRadioButton)
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NS_IMPL_RELEASE(nsRadioButton)
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//-------------------------------------------------------------------------
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//
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// nsRadioButton constructor
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//
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//-------------------------------------------------------------------------
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nsRadioButton::nsRadioButton() : nsWindow(), nsIRadioButton()
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{
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NS_INIT_REFCNT();
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}
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//-------------------------------------------------------------------------
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//
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// nsRadioButton destructor
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//
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//-------------------------------------------------------------------------
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nsRadioButton::~nsRadioButton()
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{
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}
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//-------------------------------------------------------------------------
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//
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// Query interface implementation
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//
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//-------------------------------------------------------------------------
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nsresult nsRadioButton::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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nsresult result = nsWindow::QueryInterface(aIID, aInstancePtr);
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static NS_DEFINE_IID(kIRadioButtonIID, NS_IRADIOBUTTON_IID);
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if (result == NS_NOINTERFACE && aIID.Equals(kIRadioButtonIID)) {
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*aInstancePtr = (void*) ((nsIRadioButton*)this);
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NS_ADDREF_THIS();
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result = NS_OK;
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}
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return result;
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}
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//-------------------------------------------------------------------------
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//
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// Sets the state of the nsRadioButton
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//
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//-------------------------------------------------------------------------
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NS_METHOD nsRadioButton::SetState(const PRBool aState)
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{
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fState = aState;
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::SendMessage(GetWindowHandle(), BM_SETCHECK, (WPARAM)(fState), 0L);
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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//
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// Set this button label
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//
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//-------------------------------------------------------------------------
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NS_METHOD nsRadioButton::GetState(PRBool& aState)
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{
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aState = fState;
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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//
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// Set this button label
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//
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//-------------------------------------------------------------------------
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NS_METHOD nsRadioButton::SetLabel(const nsString& aText)
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{
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char label[256];
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aText.ToCString(label, 256);
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label[255] = '\0';
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VERIFY(::SetWindowText(mWnd, label));
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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//
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// Get this button label
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//
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//-------------------------------------------------------------------------
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NS_METHOD nsRadioButton::GetLabel(nsString& aBuffer)
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{
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int actualSize = ::GetWindowTextLength(mWnd)+1;
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NS_ALLOC_CHAR_BUF(label, 256, actualSize);
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::GetWindowText(mWnd, label, actualSize);
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aBuffer.SetLength(0);
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aBuffer.Append(label);
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NS_FREE_CHAR_BUF(label);
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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//
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// move, paint, resizes message - ignore
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//
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//-------------------------------------------------------------------------
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PRBool nsRadioButton::OnMove(PRInt32, PRInt32)
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{
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return PR_FALSE;
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}
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PRBool nsRadioButton::OnPaint()
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{
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return PR_FALSE;
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}
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PRBool nsRadioButton::OnResize(nsRect &aWindowRect)
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{
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return PR_FALSE;
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}
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//-------------------------------------------------------------------------
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//
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// return the window class name and initialize the class if needed
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//
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//-------------------------------------------------------------------------
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LPCTSTR nsRadioButton::WindowClass()
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{
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return "BUTTON";
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}
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//-------------------------------------------------------------------------
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//
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// return window styles
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//
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//-------------------------------------------------------------------------
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DWORD nsRadioButton::WindowStyle()
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{
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return BS_RADIOBUTTON | WS_CHILD | WS_CLIPSIBLINGS;
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}
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//-------------------------------------------------------------------------
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//
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// return window extended styles
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//
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//-------------------------------------------------------------------------
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DWORD nsRadioButton::WindowExStyle()
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{
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return 0;
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}
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/**
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* Renders the RadioButton for Printing
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*
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**/
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NS_METHOD nsRadioButton::Paint(nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect)
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{
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float appUnits;
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float scale;
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nsIDeviceContext * context;
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aRenderingContext.GetDeviceContext(context);
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context->GetCanonicalPixelScale(scale);
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context->GetDevUnitsToAppUnits(appUnits);
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nsRect rect;
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GetBounds(rect);
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rect.x++;
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rect.y++;
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rect.width -= 2;
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rect.height -= 2;
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aRenderingContext.SetColor(NS_RGB(0,0,0));
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nscoord one = nscoord(PRFloat64(rect.width) * 1.0/12.0);
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rect.x = nscoord((PRFloat64)rect.x * appUnits);
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rect.y = nscoord((PRFloat64)rect.y * appUnits);
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rect.width = nscoord((PRFloat64)rect.width * appUnits);
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rect.height = nscoord((PRFloat64)rect.height * appUnits);
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rect.x += one;
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rect.width = nscoord(PRFloat64(rect.width) * 11.0/12.0);
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rect.height = nscoord(PRFloat64(rect.height) * 11.0/12.0);
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for (nscoord i=0;i<nscoord(scale*1.25);i++) {
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aRenderingContext.DrawArc(rect, 0, 180);
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aRenderingContext.DrawArc(rect, 180, 360);
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rect.x++;
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rect.y++;
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rect.width -= 2;
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rect.height -= 2;
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}
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if (fState) {
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GetBounds(rect);
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nscoord xHalf = rect.width / 4;
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nscoord yHalf = rect.height / 4;
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rect.x += xHalf;
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rect.y += yHalf;
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rect.width -= xHalf*2;
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rect.height -= yHalf*2;
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aRenderingContext.SetColor(NS_RGB(0,0,0));
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nscoord one = nscoord(PRFloat64(rect.width) * 1.0/12.0);
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rect.x = nscoord((PRFloat64)rect.x * appUnits);
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rect.y = nscoord((PRFloat64)rect.y * appUnits);
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rect.width = nscoord((PRFloat64)rect.width * appUnits);
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rect.height = nscoord((PRFloat64)rect.height * appUnits);
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rect.x += one;
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rect.width = nscoord(PRFloat64(rect.width) * 11.0/12.0);
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rect.height = nscoord(PRFloat64(rect.height) * 11.0/12.0);
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aRenderingContext.FillArc(rect, 0, 180);
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aRenderingContext.FillArc(rect, 180, 360);
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}
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NS_RELEASE(context);
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return NS_OK;
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}
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