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	static const char* fillVertShader =
#ifdef NANOVG_GLES2
		"#version 100\n"
		"precision highp float;\n"    // CHANGED
#endif
		"uniform vec2 viewSize;\n"
		"attribute vec2 vertex;\n"
		"attribute vec2 tcoord;\n"
		"attribute vec4 color;\n"
		"varying vec2 ftcoord;\n"

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#define mgArgs(...) mgmgArgs_(__VA_ARGS__, MG_NONE)
int mgArgs_(const char* text, ...);

int mgText_(const char* text, struct MGargs args);

// Can "cache" args for common operations, as well as merge them, or use inline.

int mgColor(float* r, float* g, float* b, float* a, struct MGargs args)
{
  struct MGargs labelArgs = mgArgs(mgFontSize(LABEL_SIZE), mgSpacing(LABEL_SPACING));

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#define foo(...) foo_(123, ##__VA_ARGS__, 0)
void foo_(int dummy, ...)
{	
	unsigned int v;
	va_list list;
	printf("foo ");
	va_start(list, dummy);
	for (v = va_arg(list, unsigned int); v != 0; v = va_arg(list, unsigned int))
		printf("%d ", v);
	va_end(list);

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Anything with complex persistent UI state.

- collapsable tree view
- a sortable list view

- graph UI (movable nodes connected w/ wires)
- timeline UI (movable boxes constrained on rows)

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void mmul(float* m, const float* a, const float* b)
{
	for (int r = 0; r < 4; r++)
		for (int c = 0; c < 4; c++)
			m[r*4+c] = a[r*4+0] * b[0*4+c] + a[r*4+1] * b[1*4+c] + a[r*4+2] * b[2*4+c] + a[r*4+3] * b[3*4+c];
}

void midentity(float* m)
{
	for (int i = 0; i < 4; i++)

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/*
(0,0)
  +..................
  : image           :
  :                 :
  :     +----+      :
  :     |rect|      :
  :     +----+      :
  :                 :
  ...................

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* Material dialog we're creating

+----------------------+
|       Materials      |
|  __________________  |
|?(__________________)x|
|----------------------|
| /¨\                 #|
|(   )  Gold          #|
| \_/                 #|

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//
// Copyright (c) 2013 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty.  In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not

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#include <stdio.h>
#include <vector>
#include <algorithm>

// Based on "An O(NP) Sequence Comparison Algorithm" by Sun Wu, Udi Manber and Gene Myers

struct Edit {
    enum Type { Insert, Delete, Common };
    Edit() = default;
    Edit(Type _type, int _a, int _b, int _n) : type(_type), a(_a), b(_b), n(_n) {}

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#include <stdio.h>
#include <vector>
#include <span>
#include <algorithm>

// Based on 
// "An O(NP) Sequence Comparison Algorithm" by Sun Wu, Udi Manber and Gene Myers
// - https://publications.mpi-cbg.de/Wu_1990_6334.pdf
// - Good article visualizing Myer's older algorithm: https://epxx.co/artigos/diff_en.html
//