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07bafd2423
OS print drivers/devices know nothing about page dimensions unless we tell them. Previously, the physical page dimensions (including orientation) have always been the same, so communicating their dimensions once at the start of a print has been enough. In preparation for supporting different "physical" page dimensions (in the immediate future only different page orientations) when we save to PDF, we need to have the infrastructure to pass dimensions through on a page-by-page basis. This patch adds that. None of the PrintTarget subclasses do anything with this extra information yet, but in a follow-up patch PrintTargetPDF will use this information to create PDFs with mixed page orientations. Differential Revision: https://phabricator.services.mozilla.com/D179423
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PrintTargetThebes.h"
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#include "gfxASurface.h"
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#include "gfxPlatform.h"
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#include "mozilla/gfx/Logging.h"
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namespace mozilla::gfx {
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/* static */
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already_AddRefed<PrintTargetThebes> PrintTargetThebes::CreateOrNull(
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gfxASurface* aSurface) {
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MOZ_ASSERT(aSurface);
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if (!aSurface || aSurface->CairoStatus()) {
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return nullptr;
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}
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RefPtr<PrintTargetThebes> target = new PrintTargetThebes(aSurface);
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return target.forget();
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}
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PrintTargetThebes::PrintTargetThebes(gfxASurface* aSurface)
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: PrintTarget(nullptr, aSurface->GetSize()), mGfxSurface(aSurface) {}
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already_AddRefed<DrawTarget> PrintTargetThebes::MakeDrawTarget(
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const IntSize& aSize, DrawEventRecorder* aRecorder) {
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// This should not be called outside of BeginPage()/EndPage() calls since
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// some backends can only provide a valid DrawTarget at that time.
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MOZ_ASSERT(mHasActivePage, "We can't guarantee a valid DrawTarget");
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RefPtr<gfx::DrawTarget> dt =
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gfxPlatform::CreateDrawTargetForSurface(mGfxSurface, aSize);
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if (!dt || !dt->IsValid()) {
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return nullptr;
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}
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if (aRecorder) {
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dt = CreateRecordingDrawTarget(aRecorder, dt);
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if (!dt || !dt->IsValid()) {
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return nullptr;
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}
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}
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return dt.forget();
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}
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already_AddRefed<DrawTarget> PrintTargetThebes::GetReferenceDrawTarget() {
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if (!mRefDT) {
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RefPtr<gfx::DrawTarget> dt =
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gfxPlatform::CreateDrawTargetForSurface(mGfxSurface, mSize);
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if (!dt || !dt->IsValid()) {
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return nullptr;
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}
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mRefDT = dt->CreateSimilarDrawTarget(IntSize(1, 1), dt->GetFormat());
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}
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return do_AddRef(mRefDT);
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}
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nsresult PrintTargetThebes::BeginPrinting(const nsAString& aTitle,
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const nsAString& aPrintToFileName,
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int32_t aStartPage,
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int32_t aEndPage) {
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return mGfxSurface->BeginPrinting(aTitle, aPrintToFileName);
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}
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nsresult PrintTargetThebes::EndPrinting() { return mGfxSurface->EndPrinting(); }
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nsresult PrintTargetThebes::AbortPrinting() {
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#ifdef DEBUG
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mHasActivePage = false;
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#endif
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return mGfxSurface->AbortPrinting();
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}
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nsresult PrintTargetThebes::BeginPage(const IntSize& aSizeInPoints) {
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#ifdef DEBUG
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mHasActivePage = true;
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#endif
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return mGfxSurface->BeginPage();
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}
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nsresult PrintTargetThebes::EndPage() {
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#ifdef DEBUG
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mHasActivePage = false;
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#endif
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return mGfxSurface->EndPage();
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}
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void PrintTargetThebes::Finish() { return mGfxSurface->Finish(); }
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} // namespace mozilla::gfx
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