RetroZilla/webshell/tests/viewer/windows/nsTextWidget.cpp
2015-10-20 23:03:22 -04:00

340 lines
11 KiB
C++

/* -*- 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):
* Pierre Phaneuf <pp@ludusdesign.com>
*
* 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 "nsTextWidget.h"
#include "nsToolkit.h"
#include "nsColor.h"
#include "nsGUIEvent.h"
#include "nsString.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_NewTextWidget(nsITextWidget** aControl)
{
NS_PRECONDITION(aControl, "null OUT ptr");
if (nsnull == aControl) {
return NS_ERROR_NULL_POINTER;
}
nsTextWidget* it = new nsTextWidget;
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(it);
*aControl = (nsITextWidget*)it;
return NS_OK;
}
NS_IMPL_ADDREF(nsTextWidget)
NS_IMPL_RELEASE(nsTextWidget)
//-------------------------------------------------------------------------
//
// nsTextWidget constructor
//
//-------------------------------------------------------------------------
nsTextWidget::nsTextWidget() : nsTextHelper()
{
mBackground = NS_RGB(124, 124, 124);
}
//-------------------------------------------------------------------------
//
// nsTextWidget destructor
//
//-------------------------------------------------------------------------
nsTextWidget::~nsTextWidget()
{
}
//-------------------------------------------------------------------------
//
// Query interface implementation
//
//-------------------------------------------------------------------------
nsresult nsTextWidget::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
nsresult result = nsWindow::QueryInterface(aIID, aInstancePtr);
if (result == NS_NOINTERFACE && aIID.Equals(NS_GET_IID(nsITextWidget))) {
*aInstancePtr = (void*) ((nsITextWidget*)this);
NS_ADDREF_THIS();
result = NS_OK;
}
return result;
}
// -----------------------------------------------------------------------
//
// Subclass (or remove the subclass from) this component's nsWindow
// this is need for filtering out the "ding" when the return key is pressed
//
// -----------------------------------------------------------------------
void nsTextWidget::SubclassWindow(BOOL bState)
{
if (NULL != mWnd) {
NS_PRECONDITION(::IsWindow(mWnd), "Invalid window handle");
if (bState) {
// change the nsWindow proc
mPrevWndProc = (WNDPROC)::SetWindowLong(mWnd, GWL_WNDPROC,
(LONG)nsTextWidget::TextWindowProc);
NS_ASSERTION(mPrevWndProc, "Null standard window procedure");
// connect the this pointer to the nsWindow handle
SetNSWindowPtr(mWnd, this);
}
else {
(void) ::SetWindowLong(mWnd, GWL_WNDPROC, (LONG)mPrevWndProc);
SetNSWindowPtr(mWnd, NULL);
mPrevWndProc = NULL;
}
}
}
//-------------------------------------------------------------------------
//
// the nsTextWidget procedure for all nsTextWidget in this toolkit
// this is need for filtering out the "ding" when the return key is pressed
//
//-------------------------------------------------------------------------
LRESULT CALLBACK nsTextWidget::TextWindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
// Filters the "ding" when hitting the return key
if (msg == WM_CHAR) {
long chCharCode = (TCHAR) wParam; // character code
if (chCharCode == 13 || chCharCode == 9) {
return 0L;
}
}
return nsWindow::WindowProc(hWnd, msg, wParam, lParam);
}
//-------------------------------------------------------------------------
//
// move, paint, resizes message - ignore
//
//-------------------------------------------------------------------------
PRBool nsTextWidget::OnMove(PRInt32, PRInt32)
{
return PR_FALSE;
}
PRBool nsTextWidget::OnPaint()
{
return PR_FALSE;
}
PRBool nsTextWidget::OnResize(nsRect &aWindowRect)
{
return PR_FALSE;
}
//-------------------------------------------------------------------------
//
// return the window class name and initialize the class if needed
//
//-------------------------------------------------------------------------
LPCWSTR nsTextWidget::WindowClassW()
{
return(nsTextHelper::WindowClassW());
}
//-------------------------------------------------------------------------
//
// return the window class name and initialize the class if needed
//
//-------------------------------------------------------------------------
LPCTSTR nsTextWidget::WindowClass()
{
return(nsTextHelper::WindowClass());
}
//-------------------------------------------------------------------------
//
// return window styles
//
//-------------------------------------------------------------------------
DWORD nsTextWidget::WindowStyle()
{
return(nsTextHelper::WindowStyle());
}
//-------------------------------------------------------------------------
//
// return window extended styles
//
//-------------------------------------------------------------------------
DWORD nsTextWidget::WindowExStyle()
{
return WS_EX_CLIENTEDGE;
}
//-------------------------------------------------------------------------
//
// get position/dimensions
//
//-------------------------------------------------------------------------
NS_METHOD nsTextWidget::GetBounds(nsRect &aRect)
{
nsWindow::GetNonClientBounds(aRect);
return NS_OK;
}
/**
* Renders the TextWidget for Printing
*
**/
NS_METHOD nsTextWidget::Paint(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect)
{
nsRect rect;
float appUnits;
float scale;
nsIDeviceContext * context;
aRenderingContext.GetDeviceContext(context);
context->GetCanonicalPixelScale(scale);
appUnits = context->DevUnitsToAppUnits();
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);
nscolor txtBGColor = NS_RGB(255,255,255);
nscolor txtFGColor = NS_RGB(0,0,0);
{
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);
lookAndFeel->GetColor(nsILookAndFeel::eColor_TextBackground, txtBGColor);
lookAndFeel->GetColor(nsILookAndFeel::eColor_TextForeground, txtFGColor);
}
}
aRenderingContext.SetColor(txtBGColor);
aRenderingContext.FillRect(rect);
// Paint Black border
//nsBaseWidget::Paint(aRenderingContext, aDirtyRect);
nscoord onePixel = nscoord(scale);
nscoord twoPixels = nscoord(scale*2);
rect.x += onePixel;
rect.y += onePixel;
rect.width -= twoPixels+onePixel;
rect.height -= twoPixels+onePixel;
nscoord right = rect.x+rect.width;
nscoord bottom = rect.y+rect.height;
// Draw Left & Top
aRenderingContext.SetColor(NS_RGB(128,128,128));
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(192,192,192));
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(mText, textWidth);
metrics->GetMaxAscent(textHeight);
nscoord x = (twoPixels * 2) + rect.x;
nscoord y = ((rect.height - textHeight) / 2) + rect.y;
aRenderingContext.SetColor(txtFGColor);
if (!mIsPassword) {
aRenderingContext.DrawString(mText, x, y + textHeight);
} else {
nsString astricks;
PRUint32 i;
for (i=0;i<mText.Length();i++) {
astricks.AppendLiteral("*");
}
aRenderingContext.DrawString(astricks, x, y + textHeight);
}
NS_RELEASE(context);
return NS_OK;
}