| /* |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * Copyright (C) 2007-2009 Torch Mobile, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "Frame.h" |
| |
| #include "Document.h" |
| #include "FloatRect.h" |
| #include "FrameView.h" |
| #include "GraphicsContext.h" |
| #include "HTMLIFrameElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLTableCellElement.h" |
| #include "KeyboardEvent.h" |
| #include "NotImplemented.h" |
| #include "Page.h" |
| #include "RenderFrame.h" |
| #include "RenderLayer.h" |
| #include "RenderView.h" |
| #include "ResourceHandle.h" |
| |
| #include <windows.h> |
| |
| using std::min; |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| extern HDC g_screenDC; |
| |
| void computePageRectsForFrame(Frame* frame, const IntRect& printRect, float headerHeight, float footerHeight, float userScaleFactor, Vector<IntRect>& pages, int& outPageHeight) |
| { |
| ASSERT(frame); |
| |
| pages.clear(); |
| outPageHeight = 0; |
| |
| if (!frame->document() || !frame->view() || !frame->document()->renderer()) |
| return; |
| |
| RenderView* root = toRenderView(frame->document()->renderer()); |
| |
| if (!root) { |
| LOG_ERROR("document to be printed has no renderer"); |
| return; |
| } |
| |
| if (userScaleFactor <= 0) { |
| LOG_ERROR("userScaleFactor has bad value %.2f", userScaleFactor); |
| return; |
| } |
| |
| float ratio = (float)printRect.height() / (float)printRect.width(); |
| |
| float pageWidth = (float) root->maxXLayoutOverflow(); |
| float pageHeight = pageWidth * ratio; |
| outPageHeight = (int) pageHeight; // this is the height of the page adjusted by margins |
| pageHeight -= (headerHeight + footerHeight); |
| |
| if (pageHeight <= 0) { |
| LOG_ERROR("pageHeight has bad value %.2f", pageHeight); |
| return; |
| } |
| |
| float currPageHeight = pageHeight / userScaleFactor; |
| float docHeight = root->layer()->height(); |
| float docWidth = root->layer()->width(); |
| float currPageWidth = pageWidth / userScaleFactor; |
| |
| |
| // always return at least one page, since empty files should print a blank page |
| float printedPagesHeight = 0.0; |
| do { |
| float proposedBottom = min(docHeight, printedPagesHeight + pageHeight); |
| frame->view()->adjustPageHeightDeprecated(&proposedBottom, printedPagesHeight, proposedBottom, printedPagesHeight); |
| currPageHeight = max(1.0f, proposedBottom - printedPagesHeight); |
| |
| pages.append(IntRect(0, printedPagesHeight, currPageWidth, currPageHeight)); |
| printedPagesHeight += currPageHeight; |
| } while (printedPagesHeight < docHeight); |
| } |
| |
| HBITMAP imageFromSelection(Frame* frame, bool forceBlackText) |
| { |
| if (!frame->view()) |
| return 0; |
| |
| frame->view()->setPaintBehavior(PaintBehaviorSelectionOnly | (forceBlackText ? PaintBehaviorForceBlackText : 0)); |
| FloatRect fr = frame->selection()->bounds(); |
| IntRect ir((int)fr.x(), (int)fr.y(), (int)fr.width(), (int)fr.height()); |
| if (ir.isEmpty()) |
| return 0; |
| |
| int w; |
| int h; |
| FrameView* view = frame->view(); |
| if (view->parent()) { |
| ir.setLocation(view->parent()->convertChildToSelf(view, ir.location())); |
| w = ir.width() * frame->pageZoomFactor() + 0.5; |
| h = ir.height() * frame->pageZoomFactor() + 0.5; |
| } else { |
| ir = view->contentsToWindow(ir); |
| w = ir.width(); |
| h = ir.height(); |
| } |
| |
| OwnPtr<HDC> bmpDC(CreateCompatibleDC(g_screenDC)); |
| HBITMAP hBmp = CreateCompatibleBitmap(g_screenDC, w, h); |
| if (!hBmp) |
| return 0; |
| |
| HGDIOBJ hbmpOld = SelectObject(bmpDC.get(), hBmp); |
| |
| { |
| GraphicsContext gc(bmpDC.get()); |
| frame->document()->updateLayout(); |
| view->paint(&gc, ir); |
| } |
| |
| SelectObject(bmpDC.get(), hbmpOld); |
| |
| frame->view()->setPaintBehavior(PaintBehaviorNormal); |
| |
| return hBmp; |
| } |
| |
| DragImageRef Frame::nodeImage(Node*) |
| { |
| notImplemented(); |
| return 0; |
| } |
| |
| DragImageRef Frame::dragImageForSelection() |
| { |
| if (selection()->isRange()) |
| return imageFromSelection(this, false); |
| |
| return 0; |
| } |
| |
| } // namespace WebCore |