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Issue #123: Alternative software rendering backend

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Jakub Melka
2024-02-04 18:05:38 +01:00
parent 87cedf01dc
commit d314683d38
48 changed files with 872 additions and 761 deletions
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35
Pdf4QtLibWidgets/sources/pdfdrawspacecontroller.h
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@ -34,6 +34,8 @@ class QPainter;
class QScrollBar;
class QTimer;
class BLContext;
namespace pdf
{
class PDFProgress;
@ -212,6 +214,15 @@ public:
/// \param rect Rectangle in which the content is painted
void draw(QPainter* painter, QRect rect);
/// Draws the actually visible pages on the context using the rectangle.
/// Rectangle is space in the widget, which is used for painting the PDF.
/// This function is using drawPages function to draw all pages. After that,
/// custom drawing is performed.
/// \sa drawPages
/// \param context Context to paint the PDF pages
/// \param rect Rectangle in which the content is painted
void draw(BLContext& context, QRect rect);
/// Draws the actually visible pages on the painter using the rectangle.
/// Rectangle is space in the widget, which is used for painting the PDF.
/// \param painter Painter to paint the PDF pages
@ -219,6 +230,13 @@ public:
/// \param features Rendering features
void drawPages(QPainter* painter, QRect rect, PDFRenderer::Features features);
/// Draws the actually visible pages on the painter using the rectangle.
/// Rectangle is space in the widget, which is used for painting the PDF.
/// \param painter Painter to paint the PDF pages
/// \param rect Rectangle in which the content is painted
/// \param features Rendering features
void drawPages(BLContext& context, QRect rect, PDFRenderer::Features features);
/// Draws thumbnail image of the given size (so larger of the page size
/// width or height equals to pixel size and the latter size is rescaled
/// using the aspect ratio)
@ -317,9 +335,8 @@ public:
/// Updates renderer (in current implementation, renderer for page thumbnails)
/// using given parameters.
/// \param useOpenGL Use OpenGL for rendering?
/// \param surfaceFormat Surface format for OpenGL rendering
void updateRenderer(bool useOpenGL, const QSurfaceFormat& surfaceFormat);
/// \param rendererEngine Renderer engine
void updateRenderer(RendererEngine rendererEngine);
/// Prefetches (prerenders) pages after page with pageIndex, i.e., prepares
/// for non-flickering scroll operation.
@ -338,8 +355,7 @@ public:
void setProgress(PDFProgress* progress) { m_progress = progress; }
PDFAsynchronousTextLayoutCompiler* getTextLayoutCompiler() const { return m_textLayoutCompiler; }
PDFWidget* getWidget() const { return m_widget; }
bool isUsingOpenGL() const { return m_useOpenGL; }
const QSurfaceFormat& getSurfaceFormat() const { return m_surfaceFormat; }
RendererEngine getRendererEngine() const { return m_rendererEngine; }
PageRotation getPageRotation() const { return m_controller->getPageRotation(); }
void setFeatures(PDFRenderer::Features features);
@ -461,8 +477,6 @@ private:
constexpr inline T bound(T value) { return qBound(min, value, max); }
};
static constexpr bool ENABLE_OPENGL_FOR_THUMBNAILS = false;
/// Flag, disables the update
bool m_updateDisabled;
@ -536,11 +550,8 @@ private:
/// Additional drawing interfaces
std::set<IDocumentDrawInterface*> m_drawInterfaces;
/// Use OpenGL for rendering?
bool m_useOpenGL;
/// Surface format for OpenGL
QSurfaceFormat m_surfaceFormat;
/// Renderer engine
RendererEngine m_rendererEngine;
/// Page group info for rendering. Group of pages
/// can be rendered with transparency or without paper