/* -*- 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 "nsFormControlHelper.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" #include "nsIDOMHTMLInputElement.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); static NS_DEFINE_IID(kIFrameIID, NS_IFRAME_IID); static NS_DEFINE_IID(kIDOMHTMLInputElementIID, NS_IDOMHTMLINPUTELEMENT_IID); nsFormControlHelper::nsFormControlHelper() { } nsFormControlHelper::~nsFormControlHelper() { } void nsFormControlHelper::ForceDrawFrame(nsIFrame * aFrame) { if (aFrame == nsnull) { return; } nsRect rect; nsIView * view; nsPoint pnt; aFrame->GetOffsetFromView(pnt, &view); aFrame->GetRect(rect); rect.x = pnt.x; rect.y = pnt.y; if (view != nsnull) { nsIViewManager * viewMgr; view->GetViewManager(viewMgr); if (viewMgr != nsnull) { viewMgr->UpdateView(view, rect, 0); NS_RELEASE(viewMgr); } } } PRBool nsFormControlHelper::GetBool(const nsString& aValue) { if (aValue == NS_STRING_TRUE) return(PR_TRUE); else return (PR_FALSE); } void nsFormControlHelper::GetBoolString(const PRBool aValue, nsString& aResult) { if (PR_TRUE == aValue) aResult = NS_STRING_TRUE; else aResult = NS_STRING_FALSE; } nsCompatibility nsFormControlHelper::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 nsFormControlHelper::GetTextSize(nsIPresContext& aPresContext, nsIFormControlFrame* aFrame, const nsString& aString, nsSize& aSize, nsIRenderingContext *aRendContext) { nsFont font(aPresContext.GetDefaultFixedFont()); aFrame->GetFont(&aPresContext, font); 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 nsFormControlHelper::GetTextSize(nsIPresContext& aPresContext, nsIFormControlFrame* 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 nsFormControlHelper::CalculateSize (nsIPresContext* aPresContext, nsIFormControlFrame* 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->GetFormContent((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. void nsFormControlHelper::GetFont(nsIFormControlFrame * aFormFrame, nsIPresContext* aPresContext, nsIStyleContext * aStyleContext, nsFont& aFont) { const nsStyleFont* styleFont = (const nsStyleFont*)aStyleContext->GetStyleData(eStyleStruct_Font); nsCompatibility mode; aPresContext->GetCompatibilityMode(mode); if (eCompatibility_Standard == mode) { aFont = styleFont->mFont; return; } PRInt32 type; aFormFrame->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; } } // //------------------------------------------------------------------------------------- // Utility methods for rendering Form Elements using GFX //------------------------------------------------------------------------------------- // void nsFormControlHelper::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 static const nscoord nsArrowOffsetX = 3; static const nscoord nsArrowOffsetY = 3; static nscoord nsArrowRightPoints[] = {0, 0, 0, 6, 6, 3 }; static nscoord nsArrowLeftPoints[] = {0, 3, 6, 0, 6, 6 }; static nscoord nsArrowUpPoints[] = {3, 0, 6, 6, 0, 6 }; static nscoord nsArrowDownPoints[] = {0, 0, 3, 6, 6, 0 }; //--------------------------------------------------------------------------- void nsFormControlHelper::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 nsFormControlHelper::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 nsFormControlHelper::PaintArrow(nsArrowDirection aArrowDirection, nsIRenderingContext& aRenderingContext, nsIPresContext& aPresContext, const nsRect& aDirtyRect, nsRect& aRect, nscoord aOnePixel, nsIStyleContext* aArrowStyle, const nsStyleSpacing& aSpacing, nsIFrame* aForFrame, nsRect& aFrameRect) { // Draw border using CSS const nsStyleColor* color = (const nsStyleColor*) aArrowStyle->GetStyleData(eStyleStruct_Color); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, aRect, *color, aSpacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, aRect, aSpacing, aArrowStyle, 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 nsFormControlHelper::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, *arrowSpacing, 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, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); nsRect thumbRect(aRect.x+arrowWidth, aRect.y, arrowWidth, arrowWidth); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowColor, *arrowSpacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowSpacing,aScrollbarArrowStyleContext, 0); nsRect arrowRightRect(aRect.x + (aRect.width - arrowWidth), aRect.y, arrowWidth, arrowWidth); PaintArrow(eArrowDirection_Right,aRenderingContext,aPresContext, aDirtyRect, arrowRightRect,aOnePixel, aScrollbarArrowStyleContext, *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, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); nsRect thumbRect(aRect.x, aRect.y+arrowHeight, arrowHeight, arrowHeight); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowColor, *arrowSpacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, thumbRect, *arrowSpacing,aScrollbarArrowStyleContext, 0); nsRect arrowDownRect(aRect.x, aRect.y + (aRect.height - arrowHeight), arrowHeight, arrowHeight); PaintArrow(eArrowDirection_Down,aRenderingContext,aPresContext, aDirtyRect, arrowDownRect,aOnePixel, aScrollbarArrowStyleContext, *arrowSpacing, aForFrame, aFrameRect); } } void nsFormControlHelper::PaintFixedSizeCheckMark(nsIRenderingContext& aRenderingContext, float aPixelsToTwips) { // 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 nsFormControlHelper::PaintFixedSizeCheckMarkBorder(nsIRenderingContext& aRenderingContext, float aPixelsToTwips, const nsStyleColor& aBackgroundColor) { // 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 aRenderingContext.SetColor(aBackgroundColor.mColor); nsRect rect(0, 0, twelvePixels, twelvePixels); 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); } //Draw a checkmark in any size. void nsFormControlHelper::PaintCheckMark(nsIRenderingContext& aRenderingContext, float aPixelsToTwips, PRUint32 aWidth, PRUint32 aHeight) { // Width and height of the fixed size checkmark in TWIPS. const PRUint32 fixedSizeCheckmarkWidth = 165; const PRUint32 fixedSizeCheckmarkHeight = 165; if ((fixedSizeCheckmarkWidth == aWidth) && (fixedSizeCheckmarkHeight == aHeight)) { // Standard size, so draw a fixed size check mark instead of a scaled check mark. PaintFixedSizeCheckMark(aRenderingContext, aPixelsToTwips); return; } const PRUint32 checkpoints = 7; const PRUint32 checksize = 9; //This is value is determined by added 2 units to the end //of the 7X& pixel rectangle below to provide some white space //around the checkmark when it is rendered. // Points come from the coordinates on a 7X7 pixels // box with 0,0 at the lower left. nscoord checkedPolygonDef[] = {0,2, 2,4, 6,0 , 6,2, 2,6, 0,4, 0,2 }; // Location of the center point of the checkmark const PRUint32 centerx = 3; const PRUint32 centery = 3; nsPoint checkedPolygon[checkpoints]; PRUint32 defIndex = 0; PRUint32 polyIndex = 0; // Scale the checkmark based on the smallest dimension PRUint32 size = aWidth / checksize; if (aHeight < aWidth) { size = aHeight / checksize; } // Center and offset each point in the polygon definition. for (defIndex = 0; defIndex < (checkpoints * 2); defIndex++) { checkedPolygon[polyIndex].x = nscoord((((checkedPolygonDef[defIndex]) - centerx) * (size)) + (aWidth / 2)); defIndex++; checkedPolygon[polyIndex].y = nscoord((((checkedPolygonDef[defIndex]) - centery) * (size)) + (aHeight / 2)); polyIndex++; } aRenderingContext.FillPolygon(checkedPolygon, checkpoints); } void nsFormControlHelper::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 nsFormControlHelper::PaintRectangularButton(nsIPresContext& aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, PRUint32 aWidth, PRUint32 aHeight, PRBool aPressed, PRBool aShowFocus, PRBool aDisabled, PRBool aDrawOutline, nsIStyleContext* outlineStyle, nsIStyleContext* focusStyle, nsIStyleContext* aStyleContext, nsString& aLabel, nsIFrame* aForFrame) { nsIFormControlFrame * formFrame; nsresult result = aForFrame->QueryInterface(kIFormControlFrameIID, (void**)&formFrame); if (NS_OK != result) { NS_RELEASE(formFrame); } 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); const nsStyleSpacing* outline = (const nsStyleSpacing*)outlineStyle->GetStyleData(eStyleStruct_Spacing); const nsStyleSpacing* focus = (const nsStyleSpacing*)focusStyle->GetStyleData(eStyleStruct_Spacing); nsMargin outlineBorder; outline->CalcBorderFor(aForFrame, outlineBorder); nsMargin focusBorder; focus->CalcBorderFor(aForFrame, focusBorder); int left = (focusBorder.left > outlineBorder.left) ? focusBorder.left : outlineBorder.left; int right = (focusBorder.right > outlineBorder.right) ? focusBorder.right : outlineBorder.right; int top = (focusBorder.top > outlineBorder.top) ? focusBorder.top : outlineBorder.top; int bottom = (focusBorder.bottom > outlineBorder.bottom) ? focusBorder.bottom : outlineBorder.bottom; if (aShowFocus) { int l = left - focusBorder.left; int t = top - focusBorder.top; int b = bottom - focusBorder.bottom; int r = right - focusBorder.right; int w = aWidth - (l + r); int h = aHeight - (t + b); nsRect focusRect(l, t, w, h); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, focusRect, *focus, aStyleContext, 0); } if (aDrawOutline) { int l = left - outlineBorder.left; int t = top - outlineBorder.top; int b = bottom - outlineBorder.bottom; int r = right - outlineBorder.right; int w = aWidth - (l + r); int h = aHeight - (t + b); nsRect outlineRect(l, t, w, h); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, outlineRect, *outline, aStyleContext, 0); } rect.x += left; rect.y += right; rect.width -= (left + right); rect.height -= (top + bottom); nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, aForFrame, aDirtyRect, rect, *color, *spacing, 0, 0); nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, aForFrame, aDirtyRect, rect, *spacing,aStyleContext, 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); } */ aRenderingContext.SetColor(NS_RGB(255,255,255)); float appUnits; float devUnits; float scale; nsIDeviceContext * context; aRenderingContext.GetDeviceContext(context); context->GetCanonicalPixelScale(scale); context->GetAppUnitsToDevUnits(devUnits); context->GetDevUnitsToAppUnits(appUnits); nsFont font(aPresContext.GetDefaultFixedFont()); formFrame->GetFont(&aPresContext, font); aRenderingContext.SetFont(font); nscoord ascent; nscoord descent; nscoord textWidth; nscoord textHeight; aRenderingContext.GetWidth(aLabel, textWidth); nsIFontMetrics* metrics; context->GetMetricsFor(font, metrics); metrics->GetMaxAscent(ascent); metrics->GetMaxDescent(descent); textHeight = ascent + descent; nscoord x = ((inside.width - textWidth) / 2) + inside.x; nscoord y = ((inside.height - textHeight) / 2) + inside.y; if (PR_TRUE == aPressed) { x += onePixel; y += onePixel; } if (aDisabled) { aRenderingContext.SetColor(NS_RGB(255,255,255)); aRenderingContext.DrawString(aLabel, x+onePixel, y+onePixel); } aRenderingContext.SetColor(color->mColor); aRenderingContext.DrawString(aLabel, x, y); NS_RELEASE(context); PRBool clipEmpty; aRenderingContext.PopState(clipEmpty); NS_RELEASE(formFrame); } void nsFormControlHelper::GetCircularRect(PRUint32 aWidth, PRUint32 aHeight, nsRect& aRect) { if (aWidth > aHeight) aRect.SetRect((aWidth/2) - (aHeight/2), 0, aHeight, aHeight); else aRect.SetRect(0, (aHeight/2) - (aWidth/2), aWidth, aWidth); } void nsFormControlHelper::PaintCircularBackground(nsIPresContext& aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset, nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight) { float p2t; aPresContext.GetScaledPixelsToTwips(p2t); nscoord onePixel = NSIntPixelsToTwips(1, p2t); nsRect outside; nsFormControlHelper::GetCircularRect(aWidth, aHeight, outside); outside.Deflate(onePixel, onePixel); outside.Deflate(onePixel, onePixel); const nsStyleColor* color = (const nsStyleColor*) aStyleContext->GetStyleData(eStyleStruct_Color); aRenderingContext.SetColor(color->mBackgroundColor); aRenderingContext.FillArc(outside, 0, 180); aRenderingContext.FillArc(outside, 180, 360); } void nsFormControlHelper::PaintCircularBorder(nsIPresContext& aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsIStyleContext* aStyleContext, PRBool aInset, nsIFrame* aForFrame, PRUint32 aWidth, PRUint32 aHeight) { const PRUint32 standardWidth = 180; const PRUint32 standardHeight = 180; aRenderingContext.PushState(); const nsStyleColor* color = (const nsStyleColor*) aStyleContext->GetStyleData(eStyleStruct_Color); 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); PRBool standardSize = ((aWidth == standardWidth) && (aHeight == standardHeight)); if (PR_TRUE == standardSize) { outside.SetRect(0, 0, twelvePixels, twelvePixels); 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 // PRUint8 borderStyle = aBorderStyle.GetBorderStyle(NS_SIDE_TOP), // nscolor borderColor = aBorderStyle.GetBorderColor(NS_SIDE_TOP), aRenderingContext.SetColor(NS_RGB(128,128,128)); // aRenderingContext.SetColor(borderColor); 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 // nscolor borderColor = aBorderStyle.GetBorderColor(NS_SIDE_BOTTOM); // aRenderingContext.SetColor(borderColor); 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 { nsRect outside; nsFormControlHelper::GetCircularRect(aWidth, aHeight, outside); 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); } PRBool clip; aRenderingContext.PopState(clip); } nsresult nsFormControlHelper::GetName(nsIContent* aContent,nsString* aResult) { nsresult result = NS_FORM_NOTOK; if (nsnull != aContent) { nsIHTMLContent* formControl = nsnull; result = aContent->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; } nsresult nsFormControlHelper::GetValue(nsIContent* aContent, nsString* aResult) { nsresult result = NS_FORM_NOTOK; if (nsnull != aContent) { nsIHTMLContent* formControl = nsnull; result = aContent->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; }