163 lines
4.7 KiB
C++
163 lines
4.7 KiB
C++
/* This file is part of the Pangolin Project.
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* http://github.com/stevenlovegrove/Pangolin
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*
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* Copyright (c) 2013 Steven Lovegrove
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <pangolin/image/image_utils.h>
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#include <pangolin/display/viewport.h>
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#include <pangolin/display/view.h>
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#include <pangolin/handler/handler.h>
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#include <pangolin/plot/range.h>
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#include <pangolin/gl/gl.h>
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#include <functional>
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namespace pangolin
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{
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class ImageViewHandler : public Handler
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{
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public:
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struct EventData {
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EventData(View& v, ImageViewHandler& h) : view(v), handler(h) {}
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View& view;
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ImageViewHandler& handler;
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};
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struct OnSelectionEventData : public EventData {
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OnSelectionEventData(View& v, ImageViewHandler& h, bool dragging)
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: EventData(v,h), dragging(dragging) {}
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bool dragging;
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};
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typedef std::function<void(OnSelectionEventData)> OnSelectionCallbackFn;
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// Default constructor: User must call SetDimensions() once image dimensions are known.
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// Default range is [0,1] in x and y.
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ImageViewHandler();
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// View ranges store extremes of image (boundary of pixels)
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// in 'discrete' coords, where 0,0 is center of top-left pixel.
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ImageViewHandler(size_t w, size_t h);
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void SetDimensions(size_t w, size_t h);
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void UpdateView();
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void glSetViewOrtho();
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void glRenderTexture(pangolin::GlTexture& tex);
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void glRenderTexture(GLuint tex, GLint width, GLint height);
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void glRenderOverlay();
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void ScreenToImage(Viewport& v, float xpix, float ypix, float& ximg, float& yimg);
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void ImageToScreen(Viewport& v, float ximg, float yimg, float& xpix, float& ypix);
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bool UseNN() const;
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bool& UseNN();
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bool& FlipTextureX();
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bool& FlipTextureY();
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pangolin::XYRangef& GetViewToRender();
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float GetViewScale();
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pangolin::XYRangef& GetView();
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pangolin::XYRangef& GetDefaultView();
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pangolin::XYRangef& GetSelection();
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void GetHover(float& x, float& y);
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void SetView(const pangolin::XYRangef& range);
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void SetViewSmooth(const pangolin::XYRangef& range);
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void ScrollView(float x, float y);
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void ScrollViewSmooth(float x, float y);
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void ScaleView(float x, float y, float cx, float cy);
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void ScaleViewSmooth(float x, float y, float cx, float cy);
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void ResetView();
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///////////////////////////////////////////////////////
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/// pangolin::Handler
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///////////////////////////////////////////////////////
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void Keyboard(View&, unsigned char key, int /*x*/, int /*y*/, bool pressed) override;
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void Mouse(View& view, pangolin::MouseButton button, int x, int y, bool pressed, int button_state) override;
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void MouseMotion(View& view, int x, int y, int button_state) override;
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void PassiveMouseMotion(View&, int /*x*/, int /*y*/, int /*button_state*/) override;
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void Special(View& view, pangolin::InputSpecial inType, float x, float y, float p1, float p2, float /*p3*/, float /*p4*/, int /*button_state*/) override;
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///////////////////////////////////////////////////////
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/// Callbacks
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///////////////////////////////////////////////////////
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OnSelectionCallbackFn OnSelectionCallback;
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protected:
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void FixSelection(XYRangef& sel);
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void AdjustScale();
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void AdjustTranslation();
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static ImageViewHandler* to_link;
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static float animate_factor;
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ImageViewHandler* linked_view_handler;
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pangolin::XYRangef rview_default;
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pangolin::XYRangef rview_max;
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pangolin::XYRangef rview;
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pangolin::XYRangef target;
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pangolin::XYRangef selection;
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float hover_img[2];
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int last_mouse_pos[2];
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bool use_nn;
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bool flipTextureX;
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bool flipTextureY;
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};
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}
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