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pjs/layout/forms/nsFormControlFrame.cpp

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48 KiB
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/* -*- 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 1.0 (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 "nsFormControlFrame.h"
#include "nsHTMLParts.h"
#include "nsIHTMLContent.h"
#include "nsIRenderingContext.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIStyleContext.h"
#include "nsLeafFrame.h"
#include "nsCSSRendering.h"
#include "nsHTMLIIDs.h"
#include "nsIView.h"
#include "nsIViewManager.h"
#include "nsCoord.h"
#include "nsWidgetsCID.h"
#include "nsViewsCID.h"
#include "nsRepository.h"
#include "nsGUIEvent.h"
#include "nsDOMEvent.h"
#include "nsIFontMetrics.h"
#include "nsIFormControl.h"
#include "nsIDeviceContext.h"
#include "nsHTMLAtoms.h"
#include "nsIButton.h" // remove this when GetCID is pure virtual
#include "nsICheckButton.h" //remove this
#include "nsITextWidget.h" //remove this
#include "nsISupports.h"
#include "nsStyleConsts.h"
#include "nsUnitConversion.h"
#include "nsStyleUtil.h"
#include "nsFormFrame.h"
#include "nsIContent.h"
#include "nsGlobalVariables.h"
#include "nsStyleUtil.h"
#include "nsINameSpaceManager.h"
static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID);
static NS_DEFINE_IID(kIFormControlIID, NS_IFORMCONTROL_IID);
static NS_DEFINE_IID(kIFormControlFrameIID, NS_IFORMCONTROLFRAME_IID);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kViewCID, NS_VIEW_CID);
static NS_DEFINE_IID(kIViewIID, NS_IVIEW_IID);
nsFormControlFrame::nsFormControlFrame()
: nsLeafFrame()
{
mLastMouseState = eMouseNone;
mDidInit = PR_FALSE;
mWidget = nsnull;
}
nsFormControlFrame::~nsFormControlFrame()
{
//printf("nsFormControlFrame::~nsFormControlFrame \n");
mFormFrame = nsnull;
NS_IF_RELEASE(mWidget);
}
nsresult
nsFormControlFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
NS_PRECONDITION(0 != aInstancePtr, "null ptr");
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIFormControlFrameIID)) {
*aInstancePtr = (void*) ((nsIFormControlFrame*) this);
return NS_OK;
}
return nsLeafFrame::QueryInterface(aIID, aInstancePtr);
}
nscoord
nsFormControlFrame::GetScrollbarWidth(float aPixToTwip)
{
return NSIntPixelsToTwips(19, aPixToTwip); // XXX this is windows
}
nscoord
nsFormControlFrame::GetVerticalBorderWidth(float aPixToTwip) const
{
return NSIntPixelsToTwips(3, aPixToTwip);
}
nscoord
nsFormControlFrame::GetHorizontalBorderWidth(float aPixToTwip) const
{
return GetVerticalBorderWidth(aPixToTwip);
}
nscoord
nsFormControlFrame::GetVerticalInsidePadding(float aPixToTwip,
nscoord aInnerHeight) const
{
return NSIntPixelsToTwips(3, aPixToTwip);
}
nscoord
nsFormControlFrame::GetHorizontalInsidePadding(nsIPresContext& aPresContext,
float aPixToTwip,
nscoord aInnerWidth,
nscoord aCharWidth) const
{
return GetVerticalInsidePadding(aPixToTwip, aInnerWidth);
}
PRInt32
nsFormControlFrame::GetMaxNumValues()
{
return 0;
}
PRBool
nsFormControlFrame::GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
nsString* aValues, nsString* aNames)
{
aNumValues = 0;
return PR_FALSE;
}
void
nsFormControlFrame::SetClickPoint(nscoord aX, nscoord aY)
{
mLastClickPoint.x = aX;
mLastClickPoint.y = aY;
}
// XXX it would be cool if form element used our rendering sw, then
// they could be blended, and bordered, and so on...
NS_METHOD
nsFormControlFrame::Paint(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsFramePaintLayer aWhichLayer)
{
return nsLeafFrame::Paint(aPresContext, aRenderingContext, aDirtyRect,
aWhichLayer);
}
void
nsFormControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredLayoutSize,
nsSize& aDesiredWidgetSize)
{
// get the css size and let the frame use or override it
nsSize styleSize;
GetStyleSize(*aPresContext, aReflowState, styleSize);
// subclasses should always override this method, but if not and no css, make it small
aDesiredLayoutSize.width = (styleSize.width > CSS_NOTSET) ? styleSize.width : 144;
aDesiredLayoutSize.height = (styleSize.height > CSS_NOTSET) ? styleSize.height : 144;
aDesiredLayoutSize.ascent = aDesiredLayoutSize.height;
aDesiredLayoutSize.descent = 0;
aDesiredWidgetSize.width = aDesiredLayoutSize.width;
aDesiredWidgetSize.height = aDesiredLayoutSize.height;
}
void
nsFormControlFrame::GetDesiredSize(nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsHTMLReflowMetrics& aDesiredSize)
{
nsSize ignore;
GetDesiredSize(aPresContext, aReflowState, aDesiredSize, ignore);
}
NS_IMETHODIMP
nsFormControlFrame::DidReflow(nsIPresContext& aPresContext,
nsDidReflowStatus aStatus)
{
nsresult rv = nsLeafFrame::DidReflow(aPresContext, aStatus);
// The view is created hidden; once we have reflowed it and it has been
// positioned then we show it.
if (NS_FRAME_REFLOW_FINISHED == aStatus) {
nsIView* view = nsnull;
GetView(view);
if (nsnull != view) {
view->SetVisibility(nsViewVisibility_kShow);
}
}
return rv;
}
NS_IMETHODIMP
nsFormControlFrame::SetInitialChildList(nsIPresContext& aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
// add ourself as an nsIFormControlFrame
nsFormFrame::AddFormControlFrame(aPresContext, *this);
return NS_OK;
}
NS_METHOD
nsFormControlFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
nsresult result = NS_OK;
nsIDeviceContext* dx = nsnull;
dx = aPresContext.GetDeviceContext();
PRBool supportsWidgets = PR_TRUE;
if (nsnull != dx) {
PRBool native = PR_FALSE;
dx->SupportsNativeWidgets(supportsWidgets);
NS_RELEASE(dx);
}
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize, mWidgetSize);
if (!mDidInit) {
nsIPresShell *presShell = aPresContext.GetShell(); // need to release
nsIViewManager *viewMan = presShell->GetViewManager(); // need to release
NS_RELEASE(presShell);
nsRect boundBox(0, 0, aDesiredSize.width, aDesiredSize.height);
// absolutely positioned controls already have a view but not a widget
nsIView* view = nsnull;
GetView(view);
if (nsnull == view) {
result = nsRepository::CreateInstance(kViewCID, nsnull, kIViewIID, (void **)&view);
if (!NS_SUCCEEDED(result)) {
NS_ASSERTION(0, "Could not create view for form control");
aStatus = NS_FRAME_NOT_COMPLETE;
return result;
}
nsIFrame* parWithView;
nsIView *parView;
GetParentWithView(parWithView);
parWithView->GetView(parView);
// initialize the view as hidden since we don't know the (x,y) until Paint
result = view->Init(viewMan, boundBox, parView, nsnull, nsViewVisibility_kHide);
if (NS_OK != result) {
NS_ASSERTION(0, "view initialization failed");
aStatus = NS_FRAME_NOT_COMPLETE;
return NS_OK;
}
viewMan->InsertChild(parView, view, 0);
SetView(view);
}
const nsIID& id = GetCID();
if (PR_TRUE == supportsWidgets) {
// Do the following only if a widget is created
nsWidgetInitData* initData = GetWidgetInitData(aPresContext); // needs to be deleted
view->CreateWidget(id, initData);
if (nsnull != initData) {
delete(initData);
}
// set our widget
result = GetWidget(view, &mWidget);
if ((NS_OK == result) && mWidget) { // keep the ref on mWidget
nsIFormControl* formControl = nsnull;
result = mContent->QueryInterface(kIFormControlIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
// set the content's widget, so it can get content modified by the widget
formControl->SetWidget(mWidget);
NS_RELEASE(formControl);
}
// PostCreateWidget(&aPresContext, aDesiredSize.width, aDesiredSize.height);
// mDidInit = PR_TRUE;
} else {
NS_ASSERTION(0, "could not get widget");
}
}
PostCreateWidget(&aPresContext, aDesiredSize.width, aDesiredSize.height);
mDidInit = PR_TRUE;
if ((aDesiredSize.width != boundBox.width) || (aDesiredSize.height != boundBox.height)) {
viewMan->ResizeView(view, aDesiredSize.width, aDesiredSize.height);
}
NS_IF_RELEASE(viewMan);
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
if (nsnull != aDesiredSize.maxElementSize) {
//XXX aDesiredSize.AddBorderPaddingToMaxElementSize(borderPadding);
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
#if 0
NS_METHOD
nsFormControlFrame::Reflow(nsIPresContext& aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
nsIView* view = nsnull;
GetView(view);
if (nsnull == view) {
nsresult result =
nsRepository::CreateInstance(kViewCID, nsnull, kIViewIID, (void **)&view);
if (NS_OK != result) {
NS_ASSERTION(0, "Could not create view for form control");
aStatus = NS_FRAME_NOT_COMPLETE;
return result;
}
nsIPresShell *presShell = aPresContext.GetShell(); // need to release
nsIViewManager *viewMan = presShell->GetViewManager(); // need to release
NS_RELEASE(presShell);
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize, mWidgetSize);
//nsRect boundBox(0, 0, mWidgetSize.width, mWidgetSize.height);
nsRect boundBox(0, 0, aDesiredSize.width, aDesiredSize.height);
nsIFrame* parWithView;
nsIView *parView;
GetParentWithView(parWithView);
parWithView->GetView(parView);
// initialize the view as hidden since we don't know the (x,y) until Paint
result = view->Init(viewMan, boundBox, parView,
nsnull, nsViewVisibility_kHide);
if (NS_OK != result) {
NS_ASSERTION(0, "view initialization failed");
aStatus = NS_FRAME_NOT_COMPLETE;
return NS_OK;
}
viewMan->InsertChild(parView, view, 0);
const nsIID& id = GetCID();
nsWidgetInitData* initData = GetWidgetInitData(aPresContext); // needs to be deleted
view->CreateWidget(id, initData);
if (nsnull != initData) {
delete(initData);
}
// set our widget
result = GetWidget(view, &mWidget);
if ((NS_OK == result) && mWidget) { // keep the ref on mWidget
nsIFormControl* formControl = nsnull;
result = mContent->QueryInterface(kIFormControlIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
// set the content's widget, so it can get content modified by the widget
formControl->SetWidget(mWidget);
NS_RELEASE(formControl);
}
PostCreateWidget(&aPresContext, aDesiredSize.width, aDesiredSize.height);
mDidInit = PR_TRUE;
} else {
NS_ASSERTION(0, "could not get widget");
}
SetView(view);
if ((aDesiredSize.width != boundBox.width) || (aDesiredSize.height != boundBox.height)) {
viewMan->ResizeView(view, aDesiredSize.width, aDesiredSize.height);
}
NS_IF_RELEASE(viewMan);
}
else {
GetDesiredSize(&aPresContext, aReflowState, aDesiredSize, mWidgetSize);
// If we are being reflowed and have a view, hide the view until
// we are told to paint (which is when our location will have
// stabilized).
}
aDesiredSize.ascent = aDesiredSize.height;
aDesiredSize.descent = 0;
if (nsnull != aDesiredSize.maxElementSize) {
aDesiredSize.maxElementSize->width = aDesiredSize.width;
aDesiredSize.maxElementSize->height = aDesiredSize.height;
}
aStatus = NS_FRAME_COMPLETE;
return NS_OK;
}
#endif
NS_IMETHODIMP
nsFormControlFrame::AttributeChanged(nsIPresContext* aPresContext,
nsIContent* aChild,
nsIAtom* aAttribute,
PRInt32 aHint)
{
return NS_OK;
}
nsWidgetInitData*
nsFormControlFrame::GetWidgetInitData(nsIPresContext& aPresContext)
{
return nsnull;
}
void
nsFormControlFrame::SetColors(nsIPresContext& aPresContext)
{
if (mWidget) {
nsCompatibility mode;
aPresContext.GetCompatibilityMode(mode);
const nsStyleColor* color =
(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
if (nsnull != color) {
if (!(NS_STYLE_BG_COLOR_TRANSPARENT & color->mBackgroundFlags)) {
mWidget->SetBackgroundColor(color->mBackgroundColor);
#ifdef bug_1021_closed
} else if (eCompatibility_NavQuirks == mode) {
#else
} else {
#endif
mWidget->SetBackgroundColor(NS_RGB(0xFF, 0xFF, 0xFF));
}
mWidget->SetForegroundColor(color->mColor);
}
}
}
void
nsFormControlFrame::PostCreateWidget(nsIPresContext* aPresContext, nscoord& aWidth, nscoord& aHeight)
{
}
// native widgets don't unset focus explicitly and don't need to repaint
void
nsFormControlFrame::SetFocus(PRBool aOn, PRBool aRepaint)
{
if (mWidget && aOn) {
mWidget->SetFocus();
}
}
nsresult
nsFormControlFrame::GetWidget(nsIWidget** aWidget)
{
if (mWidget) {
NS_ADDREF(mWidget);
*aWidget = mWidget;
mWidget->Enable(!nsFormFrame::GetDisabled(this));
return NS_OK;
} else {
*aWidget = nsnull;
return NS_FORM_NOTOK;
}
}
nsresult
nsFormControlFrame::GetWidget(nsIView* aView, nsIWidget** aWidget)
{
nsIWidget* widget;
aView->GetWidget(widget);
nsresult result;
if (nsnull == widget) {
*aWidget = nsnull;
result = NS_ERROR_FAILURE;
} else {
result = widget->QueryInterface(kIWidgetIID, (void**)aWidget); // keep the ref
if (NS_FAILED(result)) {
NS_ASSERTION(0, "The widget interface is invalid"); // need to print out more details of the widget
}
NS_RELEASE(widget);
}
return result;
}
const nsIID&
nsFormControlFrame::GetIID()
{
static NS_DEFINE_IID(kButtonIID, NS_IBUTTON_IID);
return kButtonIID;
}
const nsIID&
nsFormControlFrame::GetCID()
{
static NS_DEFINE_IID(kButtonCID, NS_BUTTON_CID);
return kButtonCID;
}
NS_IMETHODIMP
nsFormControlFrame::GetMaxLength(PRInt32* aSize)
{
*aSize = -1;
nsresult result = NS_CONTENT_ATTR_NOT_THERE;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
result = content->GetHTMLAttribute(nsHTMLAtoms::maxlength, value);
if (eHTMLUnit_Integer == value.GetUnit()) {
*aSize = value.GetIntValue();
}
NS_RELEASE(content);
}
return result;
}
NS_IMETHODIMP
nsFormControlFrame::GetSize(PRInt32* aSize) const
{
*aSize = -1;
nsresult result = NS_CONTENT_ATTR_NOT_THERE;
nsIHTMLContent* content = nsnull;
mContent->QueryInterface(kIHTMLContentIID, (void**) &content);
if (nsnull != content) {
nsHTMLValue value;
result = content->GetHTMLAttribute(nsHTMLAtoms::size, value);
if (eHTMLUnit_Integer == value.GetUnit()) {
*aSize = value.GetIntValue();
}
NS_RELEASE(content);
}
return result;
}
NS_IMETHODIMP
nsFormControlFrame::GetType(PRInt32* aType) const
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIFormControl* formControl = nsnull;
result = mContent->QueryInterface(kIFormControlIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
result = formControl->GetType(aType);
NS_RELEASE(formControl);
}
}
return result;
}
NS_IMETHODIMP
nsFormControlFrame::GetName(nsString* aResult)
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIHTMLContent* formControl = nsnull;
result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
nsHTMLValue value;
result = formControl->GetHTMLAttribute(nsHTMLAtoms::name, value);
if (NS_CONTENT_ATTR_HAS_VALUE == result) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(*aResult);
}
}
NS_RELEASE(formControl);
}
}
return result;
}
NS_IMETHODIMP
nsFormControlFrame::GetValue(nsString* aResult)
{
nsresult result = NS_FORM_NOTOK;
if (mContent) {
nsIHTMLContent* formControl = nsnull;
result = mContent->QueryInterface(kIHTMLContentIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
nsHTMLValue value;
result = formControl->GetHTMLAttribute(nsHTMLAtoms::value, value);
if (NS_CONTENT_ATTR_HAS_VALUE == result) {
if (eHTMLUnit_String == value.GetUnit()) {
value.GetStringValue(*aResult);
}
}
NS_RELEASE(formControl);
}
}
return result;
}
PRBool
nsFormControlFrame::IsSuccessful(nsIFormControlFrame* aSubmitter)
{
nsAutoString name;
return (NS_CONTENT_ATTR_HAS_VALUE == GetName(&name));
}
NS_METHOD nsFormControlFrame::HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
if (nsEventStatus_eConsumeNoDefault == aEventStatus) {
return NS_OK;
}
// make sure that the widget in the event is this input
// XXX if there is no view, it could be an image button. Unfortunately,
// every image button will get every event.
nsIView* view;
GetView(view);
if (view) {
if (mWidget != aEvent->widget) {
aEventStatus = nsEventStatus_eIgnore;
return NS_OK;
}
}
//printf(" %d %d %d %d (%d,%d) \n", this, aEvent->widget, aEvent->widgetSupports,
// aEvent->message, aEvent->point.x, aEvent->point.y);
PRInt32 type;
GetType(&type);
switch (aEvent->message) {
case NS_MOUSE_ENTER:
mLastMouseState = eMouseEnter;
break;
case NS_MOUSE_LEFT_BUTTON_DOWN:
if (NS_FORM_INPUT_IMAGE == type) {
mLastMouseState = eMouseDown;
} else {
mLastMouseState = (eMouseEnter == mLastMouseState) ? eMouseDown : eMouseNone;
}
break;
case NS_MOUSE_LEFT_BUTTON_UP:
if (eMouseDown == mLastMouseState) {
MouseClicked(&aPresContext);
}
mLastMouseState = eMouseEnter;
break;
case NS_MOUSE_EXIT:
mLastMouseState = eMouseNone;
break;
case NS_KEY_DOWN:
if (NS_KEY_EVENT == aEvent->eventStructType) {
nsKeyEvent* keyEvent = (nsKeyEvent*)aEvent;
if (NS_VK_RETURN == keyEvent->keyCode) {
EnterPressed(aPresContext);
}
}
break;
}
aEventStatus = nsEventStatus_eConsumeDoDefault;
return NS_OK;
}
void
nsFormControlFrame::GetStyleSize(nsIPresContext& aPresContext,
const nsHTMLReflowState& aReflowState,
nsSize& aSize)
{
if (aReflowState.HaveFixedContentWidth()) {
aSize.width = aReflowState.computedWidth;
}
else {
aSize.width = CSS_NOTSET;
}
if (aReflowState.HaveFixedContentHeight()) {
aSize.height = aReflowState.computedHeight;
}
else {
aSize.height = CSS_NOTSET;
}
}
nsCompatibility
GetRepChars(nsIPresContext& aPresContext, char& char1, char& char2)
{
nsCompatibility mode;
aPresContext.GetCompatibilityMode(mode);
if (eCompatibility_Standard == mode) {
char1 = 'm';
char2 = 'a';
return eCompatibility_Standard;
} else {
char1 = '%';
char2 = '%';
return eCompatibility_NavQuirks;
}
}
nscoord
nsFormControlFrame::GetTextSize(nsIPresContext& aPresContext, nsFormControlFrame* aFrame,
const nsString& aString, nsSize& aSize,
nsIRenderingContext *aRendContext)
{
nsFont font(aPresContext.GetDefaultFixedFont());
aFrame->GetFont(&aPresContext, font);
//printf("\n GetTextSize %s", aString.ToNewCString());
nsIDeviceContext* deviceContext = aPresContext.GetDeviceContext();
nsIFontMetrics* fontMet;
deviceContext->GetMetricsFor(font, fontMet);
aRendContext->SetFont(fontMet);
aRendContext->GetWidth(aString, aSize.width);
fontMet->GetHeight(aSize.height);
char char1, char2;
nsCompatibility mode = GetRepChars(aPresContext, char1, char2);
nscoord char1Width, char2Width;
aRendContext->GetWidth(char1, char1Width);
aRendContext->GetWidth(char2, char2Width);
NS_RELEASE(fontMet);
NS_RELEASE(deviceContext);
if (eCompatibility_Standard == mode) {
return ((char1Width + char2Width) / 2) + 1;
} else {
return char1Width;
}
}
nscoord
nsFormControlFrame::GetTextSize(nsIPresContext& aPresContext, nsFormControlFrame* aFrame,
PRInt32 aNumChars, nsSize& aSize,
nsIRenderingContext *aRendContext)
{
nsAutoString val;
char char1, char2;
GetRepChars(aPresContext, char1, char2);
int i;
for (i = 0; i < aNumChars; i+=2) {
val += char1;
}
for (i = 1; i < aNumChars; i+=2) {
val += char2;
}
return GetTextSize(aPresContext, aFrame, val, aSize, aRendContext);
}
PRInt32
nsFormControlFrame::CalculateSize (nsIPresContext* aPresContext, nsFormControlFrame* aFrame,
const nsSize& aCSSSize, nsInputDimensionSpec& aSpec,
nsSize& aBounds, PRBool& aWidthExplicit,
PRBool& aHeightExplicit, nscoord& aRowHeight,
nsIRenderingContext *aRendContext)
{
nscoord charWidth = 0;
PRInt32 numRows = ATTR_NOTSET;
aWidthExplicit = PR_FALSE;
aHeightExplicit = PR_FALSE;
aBounds.width = CSS_NOTSET;
aBounds.height = CSS_NOTSET;
nsSize textSize(0,0);
nsIContent* iContent = nsnull;
aFrame->GetContent((nsIContent*&) iContent);
if (!iContent) {
return 0;
}
nsIHTMLContent* hContent = nsnull;
nsresult result = iContent->QueryInterface(kIHTMLContentIID, (void**)&hContent);
if ((NS_OK != result) || !hContent) {
NS_RELEASE(iContent);
return 0;
}
nsAutoString valAttr;
nsresult valStatus = NS_CONTENT_ATTR_NOT_THERE;
if (nsnull != aSpec.mColValueAttr) {
valStatus = hContent->GetAttribute(kNameSpaceID_HTML, aSpec.mColValueAttr, valAttr);
}
nsHTMLValue colAttr;
nsresult colStatus = NS_CONTENT_ATTR_NOT_THERE;
if (nsnull != aSpec.mColSizeAttr) {
colStatus = hContent->GetHTMLAttribute(aSpec.mColSizeAttr, colAttr);
}
float p2t;
aPresContext->GetScaledPixelsToTwips(p2t);
// determine the width
nscoord adjSize;
if (NS_CONTENT_ATTR_HAS_VALUE == colStatus) { // col attr will provide width
PRInt32 col = ((colAttr.GetUnit() == eHTMLUnit_Pixel) ? colAttr.GetPixelValue() : colAttr.GetIntValue());
if (aSpec.mColSizeAttrInPixels) {
col = (col <= 0) ? 15 : col;
aBounds.width = NSIntPixelsToTwips(col, p2t);
}
else {
col = (col <= 0) ? 1 : col;
charWidth = GetTextSize(*aPresContext, aFrame, col, aBounds, aRendContext);
aRowHeight = aBounds.height; // XXX aBounds.height has CSS_NOTSET
}
if (aSpec.mColSizeAttrInPixels) {
aWidthExplicit = PR_TRUE;
}
}
else {
if (CSS_NOTSET != aCSSSize.width) { // css provides width
aBounds.width = (aCSSSize.width > 0) ? aCSSSize.width : 1;
aWidthExplicit = PR_TRUE;
}
else {
if (NS_CONTENT_ATTR_HAS_VALUE == valStatus) { // use width of initial value
charWidth = GetTextSize(*aPresContext, aFrame, valAttr, aBounds, aRendContext);
}
else if (aSpec.mColDefaultValue) { // use default value
charWidth = GetTextSize(*aPresContext, aFrame, *aSpec.mColDefaultValue, aBounds, aRendContext);
}
else if (aSpec.mColDefaultSizeInPixels) { // use default width in pixels
charWidth = GetTextSize(*aPresContext, aFrame, 1, aBounds, aRendContext);
aBounds.width = aSpec.mColDefaultSize;
}
else { // use default width in num characters
charWidth = GetTextSize(*aPresContext, aFrame, aSpec.mColDefaultSize, aBounds, aRendContext);
}
aRowHeight = aBounds.height; // XXX aBounds.height has CSS_NOTSET
}
}
// determine the height
nsHTMLValue rowAttr;
nsresult rowStatus = NS_CONTENT_ATTR_NOT_THERE;
if (nsnull != aSpec.mRowSizeAttr) {
rowStatus = hContent->GetHTMLAttribute(aSpec.mRowSizeAttr, rowAttr);
}
if (NS_CONTENT_ATTR_HAS_VALUE == rowStatus) { // row attr will provide height
PRInt32 rowAttrInt = ((rowAttr.GetUnit() == eHTMLUnit_Pixel) ? rowAttr.GetPixelValue() : rowAttr.GetIntValue());
adjSize = (rowAttrInt > 0) ? rowAttrInt : 1;
if (0 == charWidth) {
charWidth = GetTextSize(*aPresContext, aFrame, 1, textSize, aRendContext);
aBounds.height = textSize.height * adjSize;
aRowHeight = textSize.height;
numRows = adjSize;
}
else {
aBounds.height = aBounds.height * adjSize;
}
}
else if (CSS_NOTSET != aCSSSize.height) { // css provides height
aBounds.height = (aCSSSize.height > 0) ? aCSSSize.height : 1;
aHeightExplicit = PR_TRUE;
}
else { // use default height in num lines
if (0 == charWidth) {
charWidth = GetTextSize(*aPresContext, aFrame, 1, textSize, aRendContext);
aBounds.height = textSize.height * aSpec.mRowDefaultSize;
aRowHeight = textSize.height;
}
else {
aBounds.height = aBounds.height * aSpec.mRowDefaultSize;
}
}
if ((0 == charWidth) || (0 == textSize.width)) {
charWidth = GetTextSize(*aPresContext, aFrame, 1, textSize, aRendContext);
aRowHeight = textSize.height;
}
// add inside padding if necessary
if (!aWidthExplicit) {
aBounds.width += (2 * aFrame->GetHorizontalInsidePadding(*aPresContext, p2t, aBounds.width, charWidth));
}
if (!aHeightExplicit) {
aBounds.height += (2 * aFrame->GetVerticalInsidePadding(p2t, textSize.height));
}
NS_RELEASE(hContent);
if (ATTR_NOTSET == numRows) {
numRows = aBounds.height / aRowHeight;
}
NS_RELEASE(iContent);
return numRows;
}
// this handles all of the input types rather than having them do it.
NS_IMETHODIMP
nsFormControlFrame::GetFont(nsIPresContext* aPresContext, nsFont& aFont)
{
const nsStyleFont* styleFont = (const nsStyleFont*)mStyleContext->GetStyleData(eStyleStruct_Font);
nsCompatibility mode;
aPresContext->GetCompatibilityMode(mode);
if (eCompatibility_Standard == mode) {
aFont = styleFont->mFont;
return NS_OK;
}
PRInt32 type;
GetType(&type);
switch (type) {
case NS_FORM_INPUT_TEXT:
case NS_FORM_TEXTAREA:
case NS_FORM_INPUT_PASSWORD:
aFont = styleFont->mFixedFont;
break;
case NS_FORM_INPUT_BUTTON:
case NS_FORM_INPUT_SUBMIT:
case NS_FORM_INPUT_RESET:
case NS_FORM_SELECT:
if ((styleFont->mFlags & NS_STYLE_FONT_FACE_EXPLICIT) ||
(styleFont->mFlags & NS_STYLE_FONT_SIZE_EXPLICIT)) {
aFont = styleFont->mFixedFont;
aFont.weight = NS_FONT_WEIGHT_NORMAL; // always normal weight
aFont.size = styleFont->mFont.size; // normal font size
if (0 == (styleFont->mFlags & NS_STYLE_FONT_FACE_EXPLICIT)) {
aFont.name = "Arial"; // XXX windows specific font
}
} else {
// use arial, scaled down one HTML size
// italics, decoration & variant(?) get used
aFont = styleFont->mFont;
aFont.name = "Arial"; // XXX windows specific font
aFont.weight = NS_FONT_WEIGHT_NORMAL;
const nsFont& normal = aPresContext->GetDefaultFont();
PRInt32 scaler;
aPresContext->GetFontScaler(scaler);
float scaleFactor = nsStyleUtil::GetScalingFactor(scaler);
PRInt32 fontIndex = nsStyleUtil::FindNextSmallerFontSize(aFont.size, (PRInt32)normal.size, scaleFactor);
aFont.size = nsStyleUtil::CalcFontPointSize(fontIndex, (PRInt32)normal.size, scaleFactor);
}
break;
}
return NS_OK;
}
void
nsFormControlFrame::Reset()
{
}
//
//-------------------------------------------------------------------------------------
// Utility methods for rendering Form Elements using GFX
//-------------------------------------------------------------------------------------
//
// XXX: The following location for the paint code is TEMPORARY.
// It is being used to get printing working
// under windows. Later it will be used to GFX-render the controls to the display.
// Expect this code to repackaged and moved to a new location in the future.
void
nsFormControlFrame::PaintLine(nsIRenderingContext& aRenderingContext,
nscoord aSX, nscoord aSY, nscoord aEX, nscoord aEY,
PRBool aHorz, nscoord aWidth, nscoord aOnePixel)
{
nsPoint p[5];
if (aHorz) {
aEX++;
p[0].x = nscoord(float(aSX)*aOnePixel);
p[0].y = nscoord(float(aSY)*aOnePixel);
p[1].x = nscoord(float(aEX)*aOnePixel);
p[1].y = nscoord(float(aEY)*aOnePixel);
p[2].x = nscoord(float(aEX)*aOnePixel);
p[2].y = nscoord(float(aEY+1)*aOnePixel);
p[3].x = nscoord(float(aSX)*aOnePixel);
p[3].y = nscoord(float(aSY+1)*aOnePixel);
p[4].x = nscoord(float(aSX)*aOnePixel);
p[4].y = nscoord(float(aSY)*aOnePixel);
} else {
aEY++;
p[0].x = nscoord(float(aSX)*aOnePixel);
p[0].y = nscoord(float(aSY)*aOnePixel);
p[1].x = nscoord(float(aEX)*aOnePixel);
p[1].y = nscoord(float(aEY)*aOnePixel);
p[2].x = nscoord(float(aEX+1)*aOnePixel);
p[2].y = nscoord(float(aEY)*aOnePixel);
p[3].x = nscoord(float(aSX+1)*aOnePixel);
p[3].y = nscoord(float(aSY)*aOnePixel);
p[4].x = nscoord(float(aSX)*aOnePixel);
p[4].y = nscoord(float(aSY)*aOnePixel);
}
aRenderingContext.FillPolygon(p, 5);
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// Offset for arrow centerpoint
const nscoord nsArrowOffsetX = 3;
const nscoord nsArrowOffsetY = 3;
nscoord nsArrowRightPoints[] = {0, 0, 0, 6, 6, 3 };
nscoord nsArrowLeftPoints[] = {0, 3, 6, 0, 6, 6 };
nscoord nsArrowUpPoints[] = {3, 0, 6, 6, 0, 6 };
nscoord nsArrowDownPoints[] = {0, 0, 3, 6, 6, 0 };
//---------------------------------------------------------------------------
void
nsFormControlFrame::SetupPoints(PRUint32 aNumberOfPoints, nscoord* aPoints, nsPoint* aPolygon, nscoord aScaleFactor, nscoord aX, nscoord aY,
nscoord aCenterX, nscoord aCenterY)
{
const nscoord offsetX = aCenterX * aScaleFactor;
const nscoord offsetY = aCenterY * aScaleFactor;
PRUint32 i = 0;
PRUint32 count = 0;
for (i = 0; i < aNumberOfPoints; i++) {
aPolygon[i].x = (aPoints[count] * aScaleFactor) + aX - offsetX;
count++;
aPolygon[i].y = (aPoints[count] * aScaleFactor) + aY - offsetY;
count++;
}
}
//---------------------------------------------------------------------------
void
nsFormControlFrame::PaintArrowGlyph(nsIRenderingContext& aRenderingContext,
nscoord aSX, nscoord aSY, nsArrowDirection aArrowDirection,
nscoord aOnePixel)
{
nsPoint polygon[3];
switch(aArrowDirection)
{
case eArrowDirection_Left:
SetupPoints(3, nsArrowLeftPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY);
break;
case eArrowDirection_Right:
SetupPoints(3, nsArrowRightPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY);
break;
case eArrowDirection_Up:
SetupPoints(3, nsArrowUpPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY);
break;
case eArrowDirection_Down:
SetupPoints(3, nsArrowDownPoints, polygon, aOnePixel, aSX, aSY, nsArrowOffsetX, nsArrowOffsetY);
break;
}
aRenderingContext.FillPolygon(polygon, 3);
}
//---------------------------------------------------------------------------
void
nsFormControlFrame::PaintArrow(nsArrowDirection aArrowDirection,
nsIRenderingContext& aRenderingContext,
nsIPresContext& aPresContext,
const nsRect& aDirtyRect,
nsRect& aRect,
nscoord aOnePixel,
const nsStyleColor& aColor,
const nsStyleSpacing& aSpacing,
nsIFrame* aForFrame,
nsRect& aFrameRect)
{
// Draw border using CSS
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, aRect, aColor, 0, 0);
nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, aRect, aSpacing, 0);
// Draw the glyph in black
aRenderingContext.SetColor(NS_RGB(0, 0, 0));
// Draw arrow centered in the rectangle
PaintArrowGlyph(aRenderingContext, aRect.x + (aRect.width / 2), aRect.y + (aRect.height / 2), aArrowDirection, aOnePixel);
}
//---------------------------------------------------------------------------
void
nsFormControlFrame::PaintScrollbar(nsIRenderingContext& aRenderingContext,
nsIPresContext& aPresContext,
const nsRect& aDirtyRect,
nsRect& aRect,
PRBool aHorizontal,
nscoord aOnePixel,
nsIStyleContext* aScrollbarStyleContext,
nsIStyleContext* aScrollbarArrowStyleContext,
nsIFrame* aForFrame,
nsRect& aFrameRect)
{
// Get the Scrollbar's Style structs
const nsStyleSpacing* scrollbarSpacing =
(const nsStyleSpacing*)aScrollbarStyleContext->GetStyleData(eStyleStruct_Spacing);
const nsStyleColor* scrollbarColor =
(const nsStyleColor*)aScrollbarStyleContext->GetStyleData(eStyleStruct_Color);
// Get the Scrollbar's Arrow's Style structs
const nsStyleSpacing* arrowSpacing =
(const nsStyleSpacing*)aScrollbarArrowStyleContext->GetStyleData(eStyleStruct_Spacing);
const nsStyleColor* arrowColor =
(const nsStyleColor*)aScrollbarArrowStyleContext->GetStyleData(eStyleStruct_Color);
// Paint background for scrollbar
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, aRect, *scrollbarColor, 0, 0);
if (PR_TRUE == aHorizontal) {
// Draw horizontal Arrow
nscoord arrowWidth = aRect.height;
nsRect arrowLeftRect(aRect.x, aRect.y, arrowWidth, arrowWidth);
PaintArrow(eArrowDirection_Left,aRenderingContext,aPresContext,
aDirtyRect, arrowLeftRect,aOnePixel, *arrowColor, *arrowSpacing, aForFrame, aFrameRect);
nsRect thumbRect(aRect.x+arrowWidth, aRect.y, arrowWidth, arrowWidth);
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, thumbRect, *arrowColor, 0, 0);
nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, thumbRect, *arrowSpacing, 0);
nsRect arrowRightRect(aRect.x + (aRect.width - arrowWidth), aRect.y, arrowWidth, arrowWidth);
PaintArrow(eArrowDirection_Right,aRenderingContext,aPresContext,
aDirtyRect, arrowRightRect,aOnePixel, *arrowColor, *arrowSpacing, aForFrame, aFrameRect);
}
else {
// Paint vertical arrow
nscoord arrowHeight = aRect.width;
nsRect arrowUpRect(aRect.x, aRect.y, arrowHeight, arrowHeight);
PaintArrow(eArrowDirection_Up,aRenderingContext,aPresContext,
aDirtyRect, arrowUpRect,aOnePixel, *arrowColor, *arrowSpacing, aForFrame, aFrameRect);
nsRect thumbRect(aRect.x, aRect.y+arrowHeight, arrowHeight, arrowHeight);
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, thumbRect, *arrowColor, 0, 0);
nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, thumbRect, *arrowSpacing, 0);
nsRect arrowDownRect(aRect.x, aRect.y + (aRect.height - arrowHeight), arrowHeight, arrowHeight);
PaintArrow(eArrowDirection_Down,aRenderingContext,aPresContext,
aDirtyRect, arrowDownRect,aOnePixel, *arrowColor, *arrowSpacing, aForFrame, aFrameRect);
}
}
void
nsFormControlFrame::PaintFixedSizeCheckMark(nsIRenderingContext& aRenderingContext,
float aPixelsToTwips)
{
//XXX: Check mark is always draw in black. If the this code is used to Render the widget
//to the screen the color should be set using the CSS style color instead.
aRenderingContext.SetColor(NS_RGB(0, 0, 0));
// Offsets to x,y location, These offsets are used to place the checkmark in the middle
// of it's 12X12 pixel box.
const PRUint32 ox = 3;
const PRUint32 oy = 3;
nscoord onePixel = NSIntPixelsToTwips(1, aPixelsToTwips);
// Draw checkmark using a series of rectangles. This builds an replica of the
// way the checkmark looks under Windows. Using a polygon does not correctly
// represent a checkmark under Windows. This is due to round-off error in the
// Twips to Pixel conversions.
PaintLine(aRenderingContext, 0 + ox, 2 + oy, 0 + ox, 4 + oy, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 1 + ox, 3 + oy, 1 + ox, 5 + oy, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 2 + ox, 4 + oy, 2 + ox, 6 + oy, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 3 + ox, 3 + oy, 3 + ox, 5 + oy, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 4 + ox, 2 + oy, 4 + ox, 4 + oy, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 5 + ox, 1 + oy, 5 + ox, 3 + oy, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 6 + ox, 0 + oy, 6 + ox, 2 + oy, PR_FALSE, 1, onePixel);
}
void
nsFormControlFrame::PaintFixedSizeCheckMarkBorder(nsIRenderingContext& aRenderingContext,
float aPixelsToTwips)
{
//XXX: Future, use CSS to paint border instead of painting it ourselves here.
// nsLeafFrame::Paint(aPresContext, aRenderingContext, aDirtyRect);
// Offsets to x,y location
PRUint32 ox = 0;
PRUint32 oy = 0;
nscoord onePixel = NSIntPixelsToTwips(1, aPixelsToTwips);
nscoord twoPixels = NSIntPixelsToTwips(2, aPixelsToTwips);
nscoord ninePixels = NSIntPixelsToTwips(9, aPixelsToTwips);
nscoord twelvePixels = NSIntPixelsToTwips(12, aPixelsToTwips);
// Draw Background
nsRect rect(0, 0, twelvePixels, twelvePixels);
aRenderingContext.SetColor(NS_RGB(255, 255, 255));
aRenderingContext.FillRect(rect);
// Draw Border
aRenderingContext.SetColor(NS_RGB(128, 128, 128));
PaintLine(aRenderingContext, 0 + ox, 0 + oy, 11 + ox, 0 + oy, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 0 + ox, 0 + oy, 0 + ox, 11 + oy, PR_FALSE, 1, onePixel);
aRenderingContext.SetColor(NS_RGB(192, 192, 192));
PaintLine(aRenderingContext, 1 + ox, 11 + oy, 11 + ox, 11 + oy, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 11 + ox, 1 + oy, 11 + ox, 11 + oy, PR_FALSE, 1, onePixel);
aRenderingContext.SetColor(NS_RGB(0, 0, 0));
PaintLine(aRenderingContext, 1 + ox, 1 + oy, 10 + ox, 1 + oy, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 1 + ox, 1 + oy, 1 + ox, 10 + oy, PR_FALSE, 1, onePixel);
}
#if 0
//XXX: Future, use the following code to draw a checkmark in any size.
void
nsFormControlFrame::PaintScaledCheckMark(nsIRenderingContext& aRenderingContext,
float aPixelsToTwips, PRUint32 aWidth, PRUint32 aHeight)
{
#define NS_CHECKED_POINTS 7
// Points come from the coordinates on a 11X11 pixels rectangle with 0,0 at the lower
// left.
nscoord checkedPolygonDef[] = {0,2, 2,4, 6,0 , 6,2, 2,6, 0,4, 0,2 };
nsPoint checkedPolygon[NS_CHECKED_POINTS];
PRUint32 defIndex = 0;
PRUint32 polyIndex = 0;
PRBool scalable = PR_FALSE;
aRenderingContext.SetColor(color->mColor);
PRUint32 height = aHeight;
for (defIndex = 0; defIndex < (NS_CHECKED_POINTS * 2); defIndex++) {
checkedPolygon[polyIndex].x = nscoord(((checkedPolygonDef[defIndex])) * (height / 11.0) + (height / 11.0));
defIndex++;
checkedPolygon[polyIndex].y = nscoord((((checkedPolygonDef[defIndex]))) * (height / 11.0) + (height / 11.0));
polyIndex++;
}
aRenderingContext.FillPolygon(checkedPolygon, NS_CHECKED_POINTS);
}
#endif
void
nsFormControlFrame::PaintFocus(nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect, nsRect& aInside, nsRect& aOutside)
{
// draw dashed line to indicate selection, XXX don't calc rect every time
PRUint8 borderStyles[4];
nscolor borderColors[4];
nscolor black = NS_RGB(0,0,0);
for (PRInt32 i = 0; i < 4; i++) {
borderStyles[i] = NS_STYLE_BORDER_STYLE_DOTTED;
borderColors[i] = black;
}
nsCSSRendering::DrawDashedSides(0, aRenderingContext, borderStyles, borderColors, aOutside,
aInside, PR_FALSE, nsnull);
}
void
nsFormControlFrame::PaintRectangularButton(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect, PRUint32 aWidth,
PRUint32 aHeight, PRBool aShift, PRBool aShowFocus,
nsIStyleContext* aStyleContext, nsString& aLabel, nsFormControlFrame* aForFrame)
{
aRenderingContext.PushState();
// Draw border using CSS
// Get the Scrollbar's Arrow's Style structs
const nsStyleSpacing* spacing =
(const nsStyleSpacing*)aStyleContext->GetStyleData(eStyleStruct_Spacing);
const nsStyleColor* color =
(const nsStyleColor*)aStyleContext->GetStyleData(eStyleStruct_Color);
nsRect rect(0, 0, aWidth, aHeight);
nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, rect, *color, 0, 0);
nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame,
aDirtyRect, rect, *spacing, 0);
nsMargin border;
spacing->CalcBorderFor(aForFrame, border);
float p2t;
aPresContext.GetScaledPixelsToTwips(p2t);
nscoord onePixel = NSIntPixelsToTwips(1, p2t);
nsRect outside(0, 0, aWidth, aHeight);
outside.Deflate(border);
outside.Deflate(onePixel, onePixel);
nsRect inside(outside);
inside.Deflate(onePixel, onePixel);
if (aShowFocus) {
PaintFocus(aRenderingContext,
aDirtyRect, inside, outside);
}
float appUnits;
float devUnits;
float scale;
nsIDeviceContext * context;
aRenderingContext.GetDeviceContext(context);
context->GetCanonicalPixelScale(scale);
context->GetAppUnitsToDevUnits(devUnits);
context->GetDevUnitsToAppUnits(appUnits);
aRenderingContext.SetColor(NS_RGB(0,0,0));
nsFont font(aPresContext.GetDefaultFixedFont());
aForFrame->GetFont(&aPresContext, font);
aRenderingContext.SetFont(font);
nscoord textWidth;
nscoord textHeight;
aRenderingContext.GetWidth(aLabel, textWidth);
nsIFontMetrics* metrics;
context->GetMetricsFor(font, metrics);
metrics->GetMaxAscent(textHeight);
nscoord x = ((inside.width - textWidth) / 2) + inside.x;
nscoord y = ((inside.height - textHeight) / 2) + inside.y;
if (PR_TRUE == aShift) {
x += onePixel;
y += onePixel;
}
aRenderingContext.DrawString(aLabel, x, y, 0);
NS_RELEASE(context);
PRBool clipEmpty;
aRenderingContext.PopState(clipEmpty);
}
void
nsFormControlFrame::PaintCircularBorder(nsIPresContext& aPresContext,
nsIRenderingContext& aRenderingContext,
const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset,
nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight)
{
aRenderingContext.PushState();
float p2t;
aPresContext.GetScaledPixelsToTwips(p2t);
const nsStyleSpacing* spacing = (const nsStyleSpacing*)aStyleContext->GetStyleData(eStyleStruct_Spacing);
nsMargin border;
spacing->CalcBorderFor(aForFrame, border);
nscoord onePixel = NSIntPixelsToTwips(1, p2t);
nscoord twelvePixels = NSIntPixelsToTwips(12, p2t);
nsRect outside(0, 0, aWidth, aHeight);
aRenderingContext.SetColor(NS_RGB(192,192,192));
aRenderingContext.FillRect(outside);
PRBool standardSize = PR_FALSE;
if (standardSize) {
outside.SetRect(0, 0, twelvePixels, twelvePixels);
aRenderingContext.SetColor(NS_RGB(255,255,255));
aRenderingContext.FillArc(outside, 0, 180);
aRenderingContext.FillArc(outside, 180, 360);
if (PR_TRUE == aInset) {
outside.Deflate(onePixel, onePixel);
outside.Deflate(onePixel, onePixel);
aRenderingContext.SetColor(NS_RGB(192,192,192));
aRenderingContext.FillArc(outside, 0, 180);
aRenderingContext.FillArc(outside, 180, 360);
outside.SetRect(0, 0, twelvePixels, twelvePixels);
}
// DrakGray
aRenderingContext.SetColor(NS_RGB(128,128,128));
PaintLine(aRenderingContext, 4, 0, 7, 0, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 2, 1, 3, 1, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 8, 1, 9, 1, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 1, 2, 1, 3, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 0, 4, 0, 7, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 1, 8, 1, 9, PR_FALSE, 1, onePixel);
// Black
aRenderingContext.SetColor(NS_RGB(0,0,0));
PaintLine(aRenderingContext, 4, 1, 7, 1, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 2, 2, 3, 2, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 8, 2, 9, 2, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 2, 2, 2, 3, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 1, 4, 1, 7, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 2, 8, 2, 8, PR_FALSE, 1, onePixel);
// Gray
aRenderingContext.SetColor(NS_RGB(192, 192, 192));
PaintLine(aRenderingContext, 2, 9, 3, 9, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 8, 9, 9, 9, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 4, 10, 7, 10, PR_TRUE, 1, onePixel);
PaintLine(aRenderingContext, 9, 3, 9, 3, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 10, 4, 10, 7, PR_FALSE, 1, onePixel);
PaintLine(aRenderingContext, 9, 8, 9, 9, PR_FALSE, 1, onePixel);
outside.Deflate(onePixel, onePixel);
outside.Deflate(onePixel, onePixel);
outside.Deflate(onePixel, onePixel);
outside.Deflate(onePixel, onePixel);
} else {
outside.SetRect(0, 0, twelvePixels, twelvePixels);
aRenderingContext.SetColor(NS_RGB(128,128,128));
aRenderingContext.FillArc(outside, 46, 225);
aRenderingContext.SetColor(NS_RGB(255,255,255));
aRenderingContext.FillArc(outside, 225, 360);
aRenderingContext.FillArc(outside, 0, 44);
outside.Deflate(onePixel, onePixel);
aRenderingContext.SetColor(NS_RGB(0,0,0));
aRenderingContext.FillArc(outside, 46, 225);
aRenderingContext.SetColor(NS_RGB(192,192,192));
aRenderingContext.FillArc(outside, 225, 360);
aRenderingContext.FillArc(outside, 0, 44);
outside.Deflate(onePixel, onePixel);
aRenderingContext.SetColor(NS_RGB(255,255,255));
aRenderingContext.FillArc(outside, 0, 180);
aRenderingContext.FillArc(outside, 180, 360);
outside.Deflate(onePixel, onePixel);
outside.Deflate(onePixel, onePixel);
}
PRBool clip;
aRenderingContext.PopState(clip);
}
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