child window goes
inside scrollbar parent window next will come events git-svn-id: svn://10.0.0.236/trunk@37154 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
blizzard%redhat.com
parent
589ee16095
commit
b2660a7eab
@ -30,16 +30,19 @@ nsScrollbar::nsScrollbar(PRBool aIsVertical) : nsWidget(), nsIScrollbar()
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mThumbSize = 0;
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mLineIncrement = 1;
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mIsVertical = aIsVertical;
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mRenderingContext = nsnull;
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mBackground = NS_RGB(192,192,192);
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mBackground = NS_RGB(100,100,100);
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bg_pixel = xlib_rgb_xpixel_from_rgb(mBackground);
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border_pixel = xlib_rgb_xpixel_from_rgb(mBackground);
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mBar = 0;
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mBarBounds.x = mBarBounds.y = mBarBounds.width = mBarBounds.height = 0;
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};
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nsScrollbar::~nsScrollbar()
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{
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if (mRenderingContext)
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NS_RELEASE(mRenderingContext);
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if (mBar) {
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XDestroyWindow(gDisplay, mBar);
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DeleteWindowCallback(mBar);
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}
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}
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nsresult nsScrollbar::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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@ -61,6 +64,8 @@ NS_METHOD nsScrollbar::SetMaxRange(PRUint32 aEndRange)
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printf("nsScrollbar::SetMaxRange()\n");
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printf("Max Range set to %d\n", aEndRange);
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mMaxRange = aEndRange;
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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@ -76,6 +81,8 @@ NS_METHOD nsScrollbar::SetPosition(PRUint32 aPos)
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printf("nsScrollbar::SetPosition()\n");
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printf("Scroll to %d\n", aPos);
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mPosition = aPos;
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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@ -91,6 +98,8 @@ NS_METHOD nsScrollbar::SetThumbSize(PRUint32 aSize)
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printf("nsScrollbar::SetThumbSize()\n");
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printf("Thumb size set to %d\n", aSize);
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mThumbSize = aSize;
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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@ -106,6 +115,8 @@ NS_METHOD nsScrollbar::SetLineIncrement(PRUint32 aSize)
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printf("nsScrollbar::SetLineIncrement()\n");
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printf("Set Line Increment to %d\n", aSize);
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mLineIncrement = aSize;
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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@ -126,6 +137,8 @@ NS_METHOD nsScrollbar::SetParameters(PRUint32 aMaxRange, PRUint32 aThumbSize,
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SetThumbSize(aThumbSize);
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SetPosition(aPosition);
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SetLineIncrement(aLineIncrement);
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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@ -135,31 +148,13 @@ PRBool nsScrollbar::OnScroll(PRUint32 scrollCode, int cPos)
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return PR_FALSE;
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}
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PRBool nsScrollbar::OnPaint(nsPaintEvent &event)
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{
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PRBool result;
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nsRect scrollRect;
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printf("nsScrollbar::OnPaint\n");
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// draw the scrollbar itself
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scrollRect.x = 0;
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scrollRect.y = 0;
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scrollRect.width = mBounds.width/2;
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scrollRect.height = mBounds.height/2;
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printf("mBounds %d %d\n",
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mBounds.width, mBounds.height);
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printf("About to fill rect %d %d\n",
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scrollRect.width, scrollRect.height);
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if (mRenderingContext) {
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mRenderingContext->FillRect(scrollRect);
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}
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result = PR_FALSE;
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return result;
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}
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PRBool nsScrollbar::OnResize(nsSizeEvent &event)
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{
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PRBool result;
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printf("nsScrollbar::OnResize\n");
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nsWidget::OnResize(event);
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CalcBarBounds();
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LayoutBar();
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result = PR_FALSE;
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return result;
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}
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@ -182,7 +177,7 @@ void nsScrollbar::CreateNative(Window aParent, nsRect aRect)
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// be discarded...
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attr.bit_gravity = SouthEastGravity;
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// make sure that we listen for events
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attr.event_mask = StructureNotifyMask | ExposureMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
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attr.event_mask = StructureNotifyMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
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// set the default background color and border to that awful gray
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attr.background_pixel = bg_pixel;
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attr.border_pixel = border_pixel;
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@ -196,17 +191,99 @@ void nsScrollbar::CreateNative(Window aParent, nsRect aRect)
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CreateNativeWindow(aParent, mBounds, attr, attr_mask);
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CreateGC();
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// create a rendering context for this window
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static NS_DEFINE_IID(kRenderingContextCID, NS_RENDERING_CONTEXT_CID);
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static NS_DEFINE_IID(kRenderingContextIID, NS_IRENDERING_CONTEXT_IID);
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if (NS_OK != nsComponentManager::CreateInstance(kRenderingContextCID,
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nsnull,
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kRenderingContextIID,
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(void **)&mRenderingContext)) {
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// oy vey!
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printf("Oh, dear. I couldn't create an nsRenderingContext for this scrollbar. All hell is about to break loose.\n");
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}
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mRenderingContext->Init(mContext, this);
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mRenderingContext->SetColor(NS_RGB(0,0,0));
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// set up the scrolling bar.
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attr.background_pixel = xlib_rgb_xpixel_from_rgb(NS_RGB(192,192,192));
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attr.border_pixel = xlib_rgb_xpixel_from_rgb(NS_RGB(100,100,100));
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// set up the size
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CalcBarBounds();
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mBar = XCreateWindow(gDisplay,
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mBaseWindow,
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mBarBounds.x, mBarBounds.y,
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mBarBounds.width, mBarBounds.height,
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2, // border width
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gDepth,
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InputOutput,
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gVisual,
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attr_mask,
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&attr);
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AddWindowCallback(mBar, this);
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}
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NS_IMETHODIMP nsScrollbar::Show(PRBool bState)
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{
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nsWidget::Show(bState);
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if (mBar) {
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XMapWindow(gDisplay, mBar);
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}
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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NS_IMETHODIMP nsScrollbar::Resize(PRUint32 aWidth,
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PRUint32 aHeight,
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PRBool aRepaint)
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{
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nsWidget::Resize(aWidth, aHeight, aRepaint);
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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NS_IMETHODIMP nsScrollbar::Resize(PRUint32 aX,
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PRUint32 aY,
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PRUint32 aWidth,
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PRUint32 aHeight,
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PRBool aRepaint)
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{
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nsWidget::Resize(aX, aY, aWidth, aHeight, aRepaint);
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CalcBarBounds();
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LayoutBar();
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return NS_OK;
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}
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void nsScrollbar::CalcBarBounds(void)
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{
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float bar_start;
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float bar_end;
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if (mMaxRange == 0) {
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bar_start = 0;
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bar_end = 0;
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printf("CalcBarBounds: max range is zero.\n");
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}
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else {
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printf("CalcBarBounds: position: %d max: %d thumb: %d\n",
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mPosition, mMaxRange, mThumbSize);
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bar_start = (float)mPosition / (float)mMaxRange;
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bar_end = ((float)mThumbSize + (float)mPosition ) / (float)mMaxRange;
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printf("CalcBarBounds: start: %f end: %f\n", bar_start, bar_end);
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}
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if (mIsVertical == PR_TRUE) {
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mBarBounds.x = 0;
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mBarBounds.y = (int)(bar_start * mBounds.height);
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mBarBounds.width = mBounds.width;
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mBarBounds.height = (int)(bar_end * mBounds.height);
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}
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else {
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mBarBounds.x = (int)(bar_start * mBounds.width);
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mBarBounds.y = 0;
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mBarBounds.width = (int)(bar_end * mBounds.width);
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mBarBounds.height = mBounds.height;
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}
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if (mBarBounds.height == 0) {
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mBarBounds.height = 1;
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}
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if (mBarBounds.width == 0) {
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mBarBounds.width = 1;
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}
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printf("CalcBarBounds: bar is (%s) %d %d %d %d\n", ((mIsVertical == PR_TRUE) ? "vertical" : "horizontal" ), mBarBounds.x, mBarBounds.y, mBarBounds.width, mBarBounds.height);
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}
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void nsScrollbar::LayoutBar(void)
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{
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XMoveResizeWindow(gDisplay, mBar,
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mBarBounds.x, mBarBounds.y,
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mBarBounds.width, mBarBounds.height);
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}
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@ -36,9 +36,17 @@ public:
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NS_IMETHOD_(nsrefcnt) Release(void);
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// Override some of the native widget methods for scrollbars
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PRBool OnPaint(nsPaintEvent &event);
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PRBool OnResize(nsSizeEvent &event);
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PRBool DispatchMouseEvent(nsMouseEvent &aEvent);
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PRBool OnResize (nsSizeEvent &event);
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PRBool DispatchMouseEvent (nsMouseEvent &aEvent);
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NS_IMETHOD Show (PRBool bState);
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NS_IMETHOD Resize (PRUint32 aWidth,
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PRUint32 aHeight,
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PRBool aRepaint);
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NS_IMETHOD Resize (PRUint32 aX,
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PRUint32 aY,
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PRUint32 aWidth,
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PRUint32 aHeight,
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PRBool aRepaint);
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// nsIScrollBar implementation
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NS_IMETHOD SetMaxRange(PRUint32 aEndRange);
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@ -56,12 +64,16 @@ public:
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void CreateNative(Window aParent, nsRect aRect);
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private:
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void CalcBarBounds(void);
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void LayoutBar(void);
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PRUint32 mMaxRange;
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PRUint32 mPosition;
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PRUint32 mThumbSize;
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PRUint32 mLineIncrement;
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PRBool mIsVertical;
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nsIRenderingContext *mRenderingContext;
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Window mBar;
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nsRect mBarBounds;
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};
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#endif // nsButton_h__
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