6 #include "framebuffer.h"
7 #include "objectrenderer.h"
9 #define USE_GPU_TRANSFORM true
10 #define USE_GPU_RENDERING true
16 * The View class manages a rectangular view into the document.
17 * It is responsible for coordinate transforms and rendering the document.
18 * ObjectRenderer's for each type of Object should be created in the constructor.
23 View(Document & document, Screen & screen, const Rect & bounds = Rect(0,0,1,1), const Colour & colour = Colour(0.f,0.f,0.f,1.f));
26 void Render(int width = 0, int height = 0);
28 void Translate(Real x, Real y);
29 void ScaleAroundPoint(Real x, Real y, Real scale_amount);
31 Rect TransformToViewCoords(const Rect& inp) const;
33 const Rect& GetBounds() const { return m_bounds; }
35 const bool UsingGPUTransform() const { return m_use_gpu_transform; } // whether view transform calculated on CPU or GPU
36 const bool UsingGPURendering() const { return m_use_gpu_rendering; } // whether GPU shaders are used or CPU rendering
37 void ToggleGPUTransform() { m_use_gpu_transform = (!m_use_gpu_transform); m_bounds_dirty = true; m_buffer_dirty = true; }
38 void ToggleGPURendering() { m_use_gpu_rendering = (!m_use_gpu_rendering); m_bounds_dirty = true; m_buffer_dirty = true; }
41 void ForceBoundsDirty() {m_bounds_dirty = true;}
42 void ForceBufferDirty() {m_buffer_dirty = true;}
43 void ForceRenderDirty() {m_render_dirty = true;}
53 void PrepareRender(); // call when m_render_dirty is true
54 void UpdateObjBoundsVBO(unsigned first_obj, unsigned last_obj); // call when m_buffer_dirty is true
56 void RenderRange(int width, int height, unsigned first_obj, unsigned last_obj);
58 bool m_use_gpu_transform;
59 bool m_use_gpu_rendering;
60 bool m_bounds_dirty; // the view bounds has changed (occurs when changing view)
61 bool m_buffer_dirty; // the object bounds have changed (also occurs when changing view, but only when not using GPU transforms)
62 bool m_render_dirty; // the document has changed (occurs when document first loaded)
63 Document & m_document;
65 FrameBuffer m_cached_display;
69 // Stores the view bounds.
70 GraphicsBuffer m_bounds_ubo; //bounds_dirty means this one has changed
71 // Stores the bounds for _all_ objects.
72 GraphicsBuffer m_objbounds_vbo; //buffer_dirty means this one has changed
74 // ObjectRenderers to be initialised in constructor
75 // Trust me it will be easier to generalise things this way. Even though there are pointers.
76 std::vector<ObjectRenderer*> m_object_renderers;
77 uint8_t * m_cpu_rendering_pixels; // pixels to be used for CPU rendering
79 #ifndef QUADTREE_DISABLED
80 QuadTreeIndex m_current_quadtree_node; // The highest node we will traverse.
81 int m_quadtree_max_depth; // The maximum quadtree depth.
82 void RenderQuadtreeNode(int width, int height, QuadTreeIndex node, int remaining_depth);