forked from mia/Aegisub
61656d633b
* Conditionalise glMultiDrawArraysFallback since it's not used on OS X. * Stub APIENTRY at the top of visual_tool_vector_clip.cpp, this should never be added to a header but at the top of source files. Originally committed to SVN as r4737.
503 lines
14 KiB
C++
503 lines
14 KiB
C++
// Copyright (c) 2007, 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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//
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// $Id$
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/// @file visual_tool_vector_clip.cpp
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/// @brief Vector clipping visual typesetting tool
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/// @ingroup visual_ts
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#include "visual_tool_vector_clip.h"
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#ifndef AGI_PRE
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#include <wx/toolbar.h>
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#ifdef HAVE_APPLE_OPENGL_FRAMEWORK
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#include <OpenGL/glext.h>
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#else
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#include "gl/glext.h"
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#endif
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#include <algorithm>
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#endif
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#ifdef __APPLE__
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/// Noop macro, this should never be defined in a header.
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#define APIENTRY
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#endif
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#include "config.h"
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#include "ass_dialogue.h"
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#include "libresrc/libresrc.h"
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#include "utils.h"
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#include "video_display.h"
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/// Button IDs
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enum {
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BUTTON_DRAG = VISUAL_SUB_TOOL_START,
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BUTTON_LINE,
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BUTTON_BICUBIC,
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BUTTON_CONVERT,
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BUTTON_INSERT,
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BUTTON_REMOVE,
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BUTTON_FREEHAND,
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BUTTON_FREEHAND_SMOOTH,
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BUTTON_LAST // Leave this at the end and don't use it
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};
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template<class C, class O, class M>
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static void for_each_iter(C &container, O obj, M method) {
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typename C::iterator end = container.end();
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for (typename C::iterator cur = container.begin(); cur != end; ++cur) {
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(obj ->* method)(cur);
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}
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}
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VisualToolVectorClip::VisualToolVectorClip(VideoDisplay *parent, VideoState const& video, wxToolBar * toolBar)
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: VisualTool<VisualToolVectorClipDraggableFeature>(parent, video)
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, spline(*parent)
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, toolBar(toolBar)
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{
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toolBar->AddTool(BUTTON_DRAG,_("Drag"),GETIMAGE(visual_vector_clip_drag_24),_("Drag control points."),wxITEM_CHECK);
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toolBar->AddTool(BUTTON_LINE,_("Line"),GETIMAGE(visual_vector_clip_line_24),_("Appends a line."),wxITEM_CHECK);
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toolBar->AddTool(BUTTON_BICUBIC,_("Bicubic"),GETIMAGE(visual_vector_clip_bicubic_24),_("Appends a bezier bicubic curve."),wxITEM_CHECK);
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toolBar->AddSeparator();
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toolBar->AddTool(BUTTON_CONVERT,_("Convert"),GETIMAGE(visual_vector_clip_convert_24),_("Converts a segment between line and bicubic."),wxITEM_CHECK);
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toolBar->AddTool(BUTTON_INSERT,_("Insert"),GETIMAGE(visual_vector_clip_insert_24),_("Inserts a control point."),wxITEM_CHECK);
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toolBar->AddTool(BUTTON_REMOVE,_("Remove"),GETIMAGE(visual_vector_clip_remove_24),_("Removes a control point."),wxITEM_CHECK);
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toolBar->AddSeparator();
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toolBar->AddTool(BUTTON_FREEHAND,_("Freehand"),GETIMAGE(visual_vector_clip_freehand_24),_("Draws a freehand shape."),wxITEM_CHECK);
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toolBar->AddTool(BUTTON_FREEHAND_SMOOTH,_("Freehand smooth"),GETIMAGE(visual_vector_clip_freehand_smooth_24),_("Draws a smoothed freehand shape."),wxITEM_CHECK);
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toolBar->ToggleTool(BUTTON_DRAG,true);
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toolBar->Realize();
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toolBar->Show(true);
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DoRefresh();
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SetMode(features.empty());
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}
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void VisualToolVectorClip::OnSubTool(wxCommandEvent &event) {
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SetMode(event.GetId() - BUTTON_DRAG);
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}
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void VisualToolVectorClip::SetMode(int newMode) {
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// Manually enforce radio behavior as we want one selection in the bar
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// rather than one per group
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for (int i=BUTTON_DRAG;i<BUTTON_LAST;i++) {
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toolBar->ToggleTool(i,i == newMode + BUTTON_DRAG);
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}
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mode = newMode;
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}
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// Substitute for glMultiDrawArrays for sub-1.4 OpenGL
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// Not required on OS X.
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#ifndef __APPLE__
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static void APIENTRY glMultiDrawArraysFallback(GLenum mode, GLint *first, GLsizei *count, GLsizei primcount) {
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for (int i = 0; i < primcount; ++i) {
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glDrawArrays(mode, *first++, *count++);
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}
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}
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#endif
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static bool is_move(SplineCurve const& c) {
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return c.type == CURVE_POINT;
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}
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void VisualToolVectorClip::Draw() {
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if (!curDiag) return;
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if (spline.empty()) return;
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GL_EXT(PFNGLMULTIDRAWARRAYSPROC, glMultiDrawArrays);
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// Parse vector
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std::vector<float> points;
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std::vector<int> start;
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std::vector<int> count;
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spline.GetPointList(points, start, count);
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assert(!start.empty());
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assert(!count.empty());
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glEnableClientState(GL_VERTEX_ARRAY);
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glVertexPointer(2, GL_FLOAT, 0, &points[0]);
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// The following is nonzero winding-number PIP based on stencils
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// Draw to stencil only
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glEnable(GL_STENCIL_TEST);
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glColorMask(0, 0, 0, 0);
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// GL_INCR_WRAP was added in 1.4, so instead set the entire stencil to 128
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// and wobble from there
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glStencilFunc(GL_NEVER, 128, 0xFF);
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glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
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DrawRectangle(0,0,video.w,video.h);
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// Increment the winding number for each forward facing triangle
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glStencilOp(GL_INCR, GL_INCR, GL_INCR);
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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glMultiDrawArrays(GL_TRIANGLE_FAN, &start[0], &count[0], start.size());
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// Decrement the winding number for each backfacing triangle
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glStencilOp(GL_DECR, GL_DECR, GL_DECR);
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glCullFace(GL_FRONT);
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glMultiDrawArrays(GL_TRIANGLE_FAN, &start[0], &count[0], start.size());
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glDisable(GL_CULL_FACE);
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// Draw the actual rectangle
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glColorMask(1,1,1,1);
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SetLineColour(colour[3],0.f);
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SetFillColour(wxColour(0,0,0),0.5f);
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// VSFilter draws when the winding number is nonzero, so we want to draw the
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// mask when the winding number is zero (where 128 is zero due to the lack of
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// wrapping combined with unsigned numbers)
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glStencilFunc(inverse ? GL_NOTEQUAL : GL_EQUAL, 128, 0xFF);
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DrawRectangle(0,0,video.w,video.h);
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glDisable(GL_STENCIL_TEST);
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// Draw lines
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SetFillColour(colour[3],0.f);
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SetLineColour(colour[3],1.f,2);
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SetModeLine();
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glMultiDrawArrays(GL_LINE_LOOP, &start[0], &count[0], start.size());
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Vector2D pt;
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float t;
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Spline::iterator highCurve;
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spline.GetClosestParametricPoint(Vector2D(video.x, video.y), highCurve, t, pt);
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// Draw highlighted line
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if ((mode == 3 || mode == 4) && curFeature == features.end() && points.size() > 2) {
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std::vector<float> highPoints;
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spline.GetPointList(highPoints, highCurve);
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if (!highPoints.empty()) {
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glVertexPointer(2, GL_FLOAT, 0, &highPoints[0]);
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SetLineColour(colour[2], 1.f, 2);
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SetModeLine();
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glDrawArrays(GL_LINE_STRIP, 0, highPoints.size() / 2);
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}
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}
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glDisableClientState(GL_VERTEX_ARRAY);
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// Draw lines connecting the bicubic features
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SetLineColour(colour[3],0.9f,1);
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for (Spline::iterator cur=spline.begin();cur!=spline.end();cur++) {
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if (cur->type == CURVE_BICUBIC) {
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DrawDashedLine(cur->p1.x,cur->p1.y,cur->p2.x,cur->p2.y,6);
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DrawDashedLine(cur->p3.x,cur->p3.y,cur->p4.x,cur->p4.y,6);
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}
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}
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DrawAllFeatures();
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// Draw preview of inserted line
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if (mode == 1 || mode == 2) {
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if (spline.size() && video.x > INT_MIN && video.y > INT_MIN) {
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Spline::reverse_iterator c0 = std::find_if(spline.rbegin(), spline.rend(), is_move);
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SplineCurve *c1 = &spline.back();
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DrawDashedLine(video.x,video.y,c0->p1.x,c0->p1.y,6);
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DrawDashedLine(video.x,video.y,c1->EndPoint().x,c1->EndPoint().y,6);
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}
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}
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// Draw preview of insert point
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if (mode == 4) DrawCircle(pt.x,pt.y,4);
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}
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void VisualToolVectorClip::MakeFeature(Spline::iterator cur) {
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Feature feat;
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if (cur->type == CURVE_POINT) {
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feat.x = (int)cur->p1.x;
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feat.y = (int)cur->p1.y;
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feat.type = DRAG_SMALL_CIRCLE;
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feat.curve = cur;
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feat.point = 0;
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features.push_back(feat);
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}
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else if (cur->type == CURVE_LINE) {
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feat.x = (int)cur->p2.x;
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feat.y = (int)cur->p2.y;
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feat.type = DRAG_SMALL_CIRCLE;
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feat.curve = cur;
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feat.point = 1;
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features.push_back(feat);
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}
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else if (cur->type == CURVE_BICUBIC) {
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// Control points
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feat.x = (int)cur->p2.x;
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feat.y = (int)cur->p2.y;
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feat.curve = cur;
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feat.point = 1;
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feat.type = DRAG_SMALL_SQUARE;
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features.push_back(feat);
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feat.x = (int)cur->p3.x;
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feat.y = (int)cur->p3.y;
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feat.point = 2;
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features.push_back(feat);
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// End point
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feat.x = (int)cur->p4.x;
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feat.y = (int)cur->p4.y;
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feat.type = DRAG_SMALL_CIRCLE;
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feat.point = 3;
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features.push_back(feat);
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}
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}
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void VisualToolVectorClip::MakeFeatures() {
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ClearSelection();
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features.clear();
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for_each_iter(spline, this, &VisualToolVectorClip::MakeFeature);
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}
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void VisualToolVectorClip::Save() {
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SetOverride(curDiag, inverse ? L"\\iclip" : L"\\clip", L"(" + spline.EncodeToASS() + L")");
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}
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void VisualToolVectorClip::UpdateDrag(feature_iterator feature) {
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spline.MovePoint(feature->curve,feature->point,Vector2D(feature->x,feature->y));
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}
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void VisualToolVectorClip::CommitDrag(feature_iterator) {
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Save();
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}
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bool VisualToolVectorClip::InitializeDrag(feature_iterator feature) {
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if (mode != 5) return true;
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if (feature->curve->type == CURVE_BICUBIC && (feature->point == 1 || feature->point == 2)) {
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// Deleting bicubic curve handles, so convert to line
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feature->curve->type = CURVE_LINE;
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feature->curve->p2 = feature->curve->p4;
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}
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else {
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Spline::iterator next = feature->curve;
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next++;
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if (next != spline.end()) {
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if (feature->curve->type == CURVE_POINT) {
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next->p1 = next->EndPoint();
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next->type = CURVE_POINT;
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}
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else {
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next->p1 = feature->curve->p1;
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}
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}
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spline.erase(feature->curve);
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}
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curFeature = features.end();
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Save();
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MakeFeatures();
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Commit(true, _("delete control point"));
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return false;
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}
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bool VisualToolVectorClip::InitializeHold() {
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// Insert line/bicubic
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if (mode == 1 || mode == 2) {
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SplineCurve curve;
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// Set start position
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if (!spline.empty()) {
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curve.p1 = spline.back().EndPoint();
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curve.type = mode == 1 ? CURVE_LINE : CURVE_BICUBIC;
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}
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// First point
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else {
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curve.p1 = Vector2D(video.x,video.y);
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curve.type = CURVE_POINT;
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}
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// Insert
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spline.push_back(curve);
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ClearSelection();
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MakeFeature(--spline.end());
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UpdateHold();
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return true;
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}
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// Convert and insert
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if (mode == 3 || mode == 4) {
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// Get closest point
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Vector2D pt;
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Spline::iterator curve;
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float t;
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spline.GetClosestParametricPoint(Vector2D(video.x,video.y),curve,t,pt);
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// Convert
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if (mode == 3) {
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if (curve != spline.end()) {
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if (curve->type == CURVE_LINE) {
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curve->type = CURVE_BICUBIC;
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curve->p4 = curve->p2;
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curve->p2 = curve->p1 * 0.75 + curve->p4 * 0.25;
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curve->p3 = curve->p1 * 0.25 + curve->p4 * 0.75;
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}
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else if (curve->type == CURVE_BICUBIC) {
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curve->type = CURVE_LINE;
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curve->p2 = curve->p4;
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}
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}
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}
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// Insert
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else {
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// Check if there is at least one curve to split
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if (spline.empty()) return false;
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// Split the curve
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if (curve == spline.end()) {
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SplineCurve ct;
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ct.type = CURVE_LINE;
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ct.p1 = spline.back().EndPoint();
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ct.p2 = spline.front().p1;
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ct.p2 = ct.p1*(1-t) + ct.p2*t;
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spline.push_back(ct);
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}
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else {
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SplineCurve c2;
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curve->Split(*curve,c2,t);
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spline.insert(++curve, c2);
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}
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}
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// Commit
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Save();
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MakeFeatures();
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Commit(true);
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return false;
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}
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// Freehand
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if (mode == 6 || mode == 7) {
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ClearSelection();
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features.clear();
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spline.clear();
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SplineCurve curve;
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curve.type = CURVE_POINT;
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curve.p1.x = video.x;
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curve.p1.y = video.y;
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spline.push_back(curve);
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return true;
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}
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return false;
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}
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void VisualToolVectorClip::UpdateHold() {
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// Insert line
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if (mode == 1) {
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spline.back().EndPoint() = Vector2D(video.x,video.y);
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features.back().x = video.x;
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features.back().y = video.y;
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}
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// Insert bicubic
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else if (mode == 2) {
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SplineCurve &curve = spline.back();
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curve.EndPoint() = Vector2D(video.x,video.y);
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// Control points
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if (spline.size() > 1) {
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std::list<SplineCurve>::reverse_iterator iter = spline.rbegin();
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iter++;
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SplineCurve &c0 = *iter;
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Vector2D prevVector;
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float len = (curve.p4-curve.p1).Len();
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if (c0.type == CURVE_LINE) prevVector = c0.p2-c0.p1;
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else prevVector = c0.p4-c0.p3;
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curve.p2 = prevVector.Unit() * (0.25f*len) + curve.p1;
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}
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else curve.p2 = curve.p1 * 0.75 + curve.p4 * 0.25;
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curve.p3 = curve.p1 * 0.25 + curve.p4 * 0.75;
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MakeFeatures();
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}
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// Freehand
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else if (mode == 6 || mode == 7) {
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// See if distance is enough
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Vector2D const& last = spline.back().EndPoint();
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int len = (int)Vector2D(last.x-video.x, last.y-video.y).Len();
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if (mode == 6 && len < 30) return;
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if (mode == 7 && len < 60) return;
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// Generate curve and add it
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SplineCurve curve;
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curve.type = CURVE_LINE;
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curve.p1 = Vector2D(last.x,last.y);
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curve.p2 = Vector2D(video.x,video.y);
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spline.push_back(curve);
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MakeFeature(--spline.end());
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}
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}
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void VisualToolVectorClip::CommitHold() {
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if (mode == 3 || mode == 4) return;
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// Smooth spline
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if (!holding && mode == 7) {
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spline.Smooth();
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}
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Save();
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// End freedraw
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if (!holding && (mode == 6 || mode == 7)) {
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SetMode(0);
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MakeFeatures();
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}
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}
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void VisualToolVectorClip::DoRefresh() {
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if (!curDiag) return;
|
|
|
|
wxString vect;
|
|
int scale;
|
|
vect = GetLineVectorClip(curDiag,scale,inverse);
|
|
spline.DecodeFromASS(vect);
|
|
|
|
MakeFeatures();
|
|
SelectAll();
|
|
}
|
|
|
|
void VisualToolVectorClip::SelectAll() {
|
|
ClearSelection();
|
|
for_each_iter(features, this, &VisualToolVectorClip::AddSelection);
|
|
}
|