6 #include "framebuffer.h"
7 #include "objectrenderer.h"
9 #define USE_GPU_TRANSFORM true
10 #define USE_GPU_RENDERING true
15 * The View class manages a rectangular view into the document.
16 * It is responsible for coordinate transforms and rendering the document.
17 * ObjectRenderer's for each type of Object should be created in the constructor.
22 View(Document & document, const Rect & bounds = Rect(0,0,1,1), const Colour & colour = Colour(0.f,0.f,0.f,1.f));
25 void Render(int width = 0, int height = 0);
27 void Translate(Real x, Real y);
28 void ScaleAroundPoint(Real x, Real y, Real scale_amount);
30 Rect TransformToViewCoords(const Rect& inp) const;
32 const Rect& GetBounds() const { return m_bounds; }
34 const bool UsingGPUTransform() const { return m_use_gpu_transform; } // whether view transform calculated on CPU or GPU
35 const bool UsingGPURendering() const { return m_use_gpu_rendering; } // whether GPU shaders are used or CPU rendering
36 void ToggleGPUTransform() { m_use_gpu_transform = (!m_use_gpu_transform); m_bounds_dirty = true; m_buffer_dirty = true; }
37 void ToggleGPURendering() { m_use_gpu_rendering = (!m_use_gpu_rendering); m_bounds_dirty = true; m_buffer_dirty = true; }
46 void PrepareRender(); // call when m_render_dirty is true
47 void UpdateObjBoundsVBO(); // call when m_buffer_dirty is true
49 bool m_use_gpu_transform;
50 bool m_use_gpu_rendering;
51 bool m_bounds_dirty; // the view bounds has changed (occurs when changing view)
52 bool m_buffer_dirty; // the object bounds have changed (also occurs when changing view, but only when not using GPU transforms)
53 bool m_render_dirty; // the document has changed (occurs when document first loaded)
54 Document & m_document;
55 FrameBuffer m_cached_display;
59 // Stores the view bounds.
60 GraphicsBuffer m_bounds_ubo; //bounds_dirty means this one has changed
61 // Stores the bounds for _all_ objects.
62 GraphicsBuffer m_objbounds_vbo; //buffer_dirty means this one has changed
64 // ObjectRenderers to be initialised in constructor
65 // Trust me it will be easier to generalise things this way. Even though there are pointers.
66 std::vector<ObjectRenderer*> m_object_renderers;