192 lines
6.2 KiB
C++
192 lines
6.2 KiB
C++
// Copyright (c) 2005-2010, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file video_display.h
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/// @see video_display.cpp
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/// @ingroup video main_ui
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///
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#include <libaegisub/signal.h>
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#include "vector2d.h"
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#include "visual_tool_vector_clip.h"
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#include <memory>
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#include <typeinfo>
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#include <vector>
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#include <wx/glcanvas.h>
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// Prototypes
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class RetinaHelper;
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class VideoController;
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class VideoOutGL;
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class VisualToolBase;
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class wxComboBox;
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class wxTextCtrl;
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class wxToolBar;
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struct FrameReadyEvent;
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struct VideoFrame;
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namespace agi {
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struct Context;
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class OptionValue;
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}
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class VideoDisplay final : public wxGLCanvas {
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/// Signals the display is connected to
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std::vector<agi::signal::Connection> connections;
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const agi::OptionValue* autohideTools;
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agi::Context *con;
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std::unique_ptr<wxMenu> context_menu;
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/// The size of the video in screen at the current zoom level, which may not
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/// be the same as the actual client size of the display
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wxSize videoSize;
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Vector2D last_mouse_pos, mouse_pos;
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/// Screen pixels between the left of the canvas and the left of the video
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int viewport_left = 0;
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/// The width of the video in screen pixels
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int viewport_width = 0;
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/// Screen pixels between the bottom of the canvas and the bottom of the video; used for glViewport
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int viewport_bottom = 0;
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/// Screen pixels between the bottom of the canvas and the top of the video; used for coordinate space conversion
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int viewport_top = 0;
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/// The height of the video in screen pixels
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int viewport_height = 0;
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/// The current window zoom level, where 1.0 = 100%
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double windowZoomValue;
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/// The current video zoom level, where 1.0 = 100% relative to the display window size
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double videoZoomValue;
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/// The last position of the mouse, when dragging
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Vector2D pan_last_pos;
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/// True if middle mouse button is down, and we should update pan_{x,y}
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bool panning = false;
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/// The current video pan offset width
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int pan_x = 0;
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/// The current video pan offset height
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int pan_y = 0;
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/// The video renderer
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std::unique_ptr<VideoOutGL> videoOut;
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/// The active visual typesetting tool
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std::unique_ptr<VisualToolBase> tool;
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/// The toolbar used by individual typesetting tools
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wxToolBar* toolBar;
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/// The OpenGL context for this display
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std::unique_ptr<wxGLContext> glContext;
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/// The dropdown box for selecting zoom levels
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wxComboBox *zoomBox;
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/// Whether the display can be freely resized by the user
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bool freeSize;
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/// Frame which will replace the currently visible frame on the next render
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std::shared_ptr<VideoFrame> pending_frame;
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std::unique_ptr<RetinaHelper> retina_helper;
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int scale_factor;
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agi::signal::Connection scale_factor_connection;
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/// @brief Draw an overscan mask
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/// @param horizontal_percent The percent of the video reserved horizontally
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/// @param vertical_percent The percent of the video reserved vertically
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void DrawOverscanMask(float horizontal_percent, float vertical_percent) const;
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/// Upload the image for the current frame to the video card
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void UploadFrameData(FrameReadyEvent&);
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/// @brief Initialize the gl context and set the active context to this one
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/// @return Could the context be set?
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bool InitContext();
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/// @brief Set the size of the display based on the current zoom and video resolution
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void UpdateSize();
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void PositionVideo();
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/// Set the zoom level to that indicated by the dropdown
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void SetZoomFromBox(wxCommandEvent&);
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/// Set the zoom level to that indicated by the text
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void SetZoomFromBoxText(wxCommandEvent&);
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/// @brief Key event handler
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void OnKeyDown(wxKeyEvent &event);
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/// @brief Mouse event handler
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void OnMouseEvent(wxMouseEvent& event);
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void OnMouseWheel(wxMouseEvent& event);
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void OnMouseLeave(wxMouseEvent& event);
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/// @brief Recalculate video positioning and scaling when the available area or zoom changes
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void OnSizeEvent(wxSizeEvent &event);
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void OnContextMenu(wxContextMenuEvent&);
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public:
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/// @brief Constructor
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VideoDisplay(
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wxToolBar *visualSubToolBar,
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bool isDetached,
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wxComboBox *zoomBox,
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wxWindow* parent,
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agi::Context *context);
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~VideoDisplay();
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/// @brief Render the currently visible frame
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void Render();
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/// @brief Set the zoom level
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/// @param value The new zoom level
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void SetWindowZoom(double value);
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void SetVideoZoom(int step);
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/// @brief Get the current zoom level
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double GetZoom() const { return windowZoomValue; }
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/// @brief Reset the video pan
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void ResetPan();
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/// Get the last seen position of the mouse in script coordinates
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Vector2D GetMousePosition() const;
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void SetTool(std::unique_ptr<VisualToolBase> new_tool);
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void SetSubTool(int subtool) const { tool->SetSubTool(subtool); };
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bool ToolIsType(std::type_info const& type) const;
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int GetSubTool() const { return tool->GetSubTool(); };
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/// Discard all OpenGL state
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void Unload();
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};
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