eco2d/code/vendors/raylib-nuklear/include/raylib-nuklear.h

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2023-01-15 15:59:33 +00:00
/**********************************************************************************************
*
* raylib-nuklear - Nuklear for Raylib.
*
* FEATURES:
* - Use the nuklear immediate-mode graphical user interface in raylib.
*
* DEPENDENCIES:
* - raylib 4.2 https://www.raylib.com/
* - nuklear https://github.com/Immediate-Mode-UI/Nuklear
*
* LICENSE: zlib/libpng
*
* raylib-nuklear is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software:
*
* Copyright (c) 2020 Rob Loach (@RobLoach)
*
* 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 claim that you
* wrote the original software. If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
* as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/
#ifndef RAYLIB_NUKLEAR_H
#define RAYLIB_NUKLEAR_H
#include "raylib.h"
// Nuklear defines
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_COMMAND_USERDATA
// TODO: Replace NK_INCLUDE_DEFAULT_ALLOCATOR with MemAlloc() and MemFree()
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_COMMAND_USERDATA
// TODO: Figure out if we can use STANDARD_BOOL here?
//#define NK_INCLUDE_STANDARD_BOOL
//#ifndef NK_BOOL
//#define NK_BOOL bool
//#endif // NK_BOOL
#ifndef NK_ASSERT
#define NK_ASSERT(condition) do { if (!(condition)) { TraceLog(LOG_WARNING, "NUKLEAR: Failed assert \"%s\" (%s:%i)", #condition, "nuklear.h", __LINE__); }} while (0)
#endif // NK_ASSERT
#include "nuklear.h"
#ifdef __cplusplus
extern "C" {
#endif
NK_API struct nk_context* InitNuklear(int fontSize); // Initialize the Nuklear GUI context
NK_API struct nk_context* InitNuklearEx(Font font, float fontSize); // Initialize the Nuklear GUI context, with a custom font
NK_API void UpdateNuklear(struct nk_context * ctx); // Update the input state and internal components for Nuklear
NK_API void DrawNuklear(struct nk_context * ctx); // Render the Nuklear GUI on the screen
NK_API void UnloadNuklear(struct nk_context * ctx); // Deinitialize the Nuklear context
NK_API struct nk_color ColorToNuklear(Color color); // Convert a raylib Color to a Nuklear color object
NK_API struct nk_colorf ColorToNuklearF(Color color); // Convert a raylib Color to a Nuklear floating color
NK_API struct Color ColorFromNuklear(struct nk_color color); // Convert a Nuklear color to a raylib Color
NK_API struct Color ColorFromNuklearF(struct nk_colorf color); // Convert a Nuklear floating color to a raylib Color
NK_API struct Rectangle RectangleFromNuklear(struct nk_context * ctx, struct nk_rect rect); // Convert a Nuklear rectangle to a raylib Rectangle
NK_API struct nk_rect RectangleToNuklear(struct nk_context * ctx, Rectangle rect); // Convert a raylib Rectangle to a Nuklear Rectangle
NK_API struct nk_image TextureToNuklear(Texture tex); // Convert a raylib Texture to A Nuklear image
NK_API struct Texture TextureFromNuklear(struct nk_image img); // Convert a Nuklear image to a raylib Texture
NK_API struct nk_image LoadNuklearImage(const char* path); // Load a Nuklear image
NK_API void UnloadNuklearImage(struct nk_image img); // Unload a Nuklear image. And free its data
NK_API void CleanupNuklearImage(struct nk_image img); // Frees the data stored by the Nuklear image
NK_API void SetNuklearScaling(struct nk_context * ctx, float scaling); // Sets the scaling for the given Nuklear context
NK_API float GetNuklearScaling(struct nk_context * ctx); // Retrieves the scaling of the given Nuklear context
#ifdef __cplusplus
}
#endif
#endif // RAYLIB_NUKLEAR_H
#ifdef RAYLIB_NUKLEAR_IMPLEMENTATION
#ifndef RAYLIB_NUKLEAR_IMPLEMENTATION_ONCE
#define RAYLIB_NUKLEAR_IMPLEMENTATION_ONCE
// Math
#ifndef NK_COS
#define NK_COS cosf
#endif // NK_COS
#ifndef NK_SIN
#define NK_SIN sinf
#endif // NK_SIN
#ifndef NK_INV_SQRT
#define NK_INV_SQRT(value) (1.0f / sqrtf(value))
#endif // NK_INV_SQRT
#define NK_IMPLEMENTATION
#define NK_KEYSTATE_BASED_INPUT
#include "nuklear.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef RAYLIB_NUKLEAR_DEFAULT_FONTSIZE
/**
* The default font size that is used when a font size is not provided.
*/
#define RAYLIB_NUKLEAR_DEFAULT_FONTSIZE 10
#endif // RAYLIB_NUKLEAR_DEFAULT_FONTSIZE
#ifndef RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS
/**
* The amount of segments used when drawing an arc.
*
* @see NK_COMMAND_ARC_FILLED
*/
#define RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS 20
#endif // RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS
#ifndef RAYLIB_NUKLEAR_ROUNDING_SCALE
/**
* The default scaling to apply for rounded borders.
*/
#define RAYLIB_NUKLEAR_ROUNDING_SCALE 4.0f
#endif
/**
* The user data that's leverages internally through Nuklear.
*/
typedef struct NuklearUserData {
float scaling;
} NuklearUserData;
/**
* Nuklear callback; Get the width of the given text.
*
* @internal
*/
NK_API float
nk_raylib_font_get_text_width(nk_handle handle, float height, const char *text, int len)
{
NK_UNUSED(handle);
if (len > 0) {
// Grab the text with the cropped length so that it only measures the desired string length.
const char* subtext = TextSubtext(text, 0, len);
return (float)MeasureText(subtext, (int)height);
}
return 0;
}
/**
* Nuklear callback; Get the width of the given text (userFont version)
*
* @internal
*/
NK_API float
nk_raylib_font_get_text_width_user_font(nk_handle handle, float height, const char *text, int len)
{
if (len > 0) {
// Grab the text with the cropped length so that it only measures the desired string length.
const char* subtext = TextSubtext(text, 0, len);
// Spacing is determined by the font size divided by 10.
return MeasureTextEx(*(Font*)handle.ptr, subtext, height, height / 10.0f).x;
}
return 0;
}
/**
* Nuklear callback; Paste the current clipboard.
*
* @internal
*/
NK_API void
nk_raylib_clipboard_paste(nk_handle usr, struct nk_text_edit *edit)
{
const char *text = GetClipboardText();
NK_UNUSED(usr);
if (text != NULL) {
nk_textedit_paste(edit, text, (int)TextLength(text));
}
}
/**
* Nuklear callback; Copy the given text.
*
* @internal
*/
NK_API void
nk_raylib_clipboard_copy(nk_handle usr, const char *text, int len)
{
NK_UNUSED(usr);
NK_UNUSED(len);
SetClipboardText(text);
}
/**
* Initialize the Nuklear context for use with Raylib, with the given Nuklear user font.
*
* @param userFont The Nuklear user font to initialize the Nuklear context with.
*
* @internal
*/
NK_API struct nk_context*
InitNuklearContext(struct nk_user_font* userFont)
{
struct nk_context* ctx = (struct nk_context*)MemAlloc(sizeof(struct nk_context));
struct NuklearUserData* userData = (struct NuklearUserData*)MemAlloc(sizeof(struct NuklearUserData));
// Clipboard
ctx->clip.copy = nk_raylib_clipboard_copy;
ctx->clip.paste = nk_raylib_clipboard_paste;
ctx->clip.userdata = nk_handle_ptr(0);
// Create the nuklear environment.
if (nk_init_default(ctx, userFont) == 0) {
TraceLog(LOG_ERROR, "NUKLEAR: Failed to initialize nuklear");
return NULL;
}
// Set the internal user data.
userData->scaling = 1.0f;
nk_handle userDataHandle;
userDataHandle.id = 1;
userDataHandle.ptr = (void*)userData;
nk_set_user_data(ctx, userDataHandle);
TraceLog(LOG_INFO, "NUKLEAR: Initialized GUI");
return ctx;
}
/**
* Initialize the Nuklear context for use with Raylib.
*
* @param fontSize The size of the font to use for GUI text. Use 0 to use the default font size of 10.
*
* @return The nuklear context, or NULL on error.
*/
NK_API struct nk_context*
InitNuklear(int fontSize)
{
// User font.
struct nk_user_font* userFont = (struct nk_user_font*)MemAlloc(sizeof(struct nk_user_font));
// Use the default font size if desired.
if (fontSize <= 0) {
fontSize = RAYLIB_NUKLEAR_DEFAULT_FONTSIZE;
}
userFont->height = (float)fontSize;
userFont->width = nk_raylib_font_get_text_width;
userFont->userdata = nk_handle_ptr(0);
// Nuklear context.
return InitNuklearContext(userFont);
}
/**
* Initialize the Nuklear context for use with Raylib, with a supplied custom font.
*
* @param font The custom raylib font to use with Nuklear.
* @param fontSize The desired size of the font. Use 0 to set the default size of 10.
*
* @return The nuklear context, or NULL on error.
*/
NK_API struct nk_context*
InitNuklearEx(Font font, float fontSize)
{
// Copy the font to a new raylib font pointer.
struct Font* newFont = (struct Font*)MemAlloc(sizeof(struct Font));
// Use the default font size if desired.
if (fontSize <= 0.0f) {
fontSize = (float)RAYLIB_NUKLEAR_DEFAULT_FONTSIZE;
}
newFont->baseSize = font.baseSize;
newFont->glyphCount = font.glyphCount;
newFont->glyphPadding = font.glyphPadding;
newFont->glyphs = font.glyphs;
newFont->recs = font.recs;
newFont->texture = font.texture;
// Create the nuklear user font.
struct nk_user_font* userFont = (struct nk_user_font*)MemAlloc(sizeof(struct nk_user_font));
userFont->userdata = nk_handle_ptr(newFont);
userFont->height = fontSize;
userFont->width = nk_raylib_font_get_text_width_user_font;
// Nuklear context.
return InitNuklearContext(userFont);
}
/**
* Convert the given Nuklear color to a raylib color.
*/
NK_API Color
ColorFromNuklear(struct nk_color color)
{
Color rc;
rc.a = color.a;
rc.r = color.r;
rc.g = color.g;
rc.b = color.b;
return rc;
}
/**
* Convert the given raylib color to a Nuklear color.
*/
NK_API struct nk_color
ColorToNuklear(Color color)
{
struct nk_color rc;
rc.a = color.a;
rc.r = color.r;
rc.g = color.g;
rc.b = color.b;
return rc;
}
/**
* Convert the given Nuklear float color to a raylib color.
*/
NK_API Color
ColorFromNuklearF(struct nk_colorf color)
{
return ColorFromNuklear(nk_rgba_cf(color));
}
/**
* Convert the given raylib color to a raylib float color.
*/
NK_API struct nk_colorf
ColorToNuklearF(Color color)
{
return nk_color_cf(ColorToNuklear(color));
}
/**
* Draw the given Nuklear context in raylib.
*
* @param ctx The nuklear context.
*/
NK_API void
DrawNuklear(struct nk_context * ctx)
{
const struct nk_command *cmd;
const float scale = GetNuklearScaling(ctx);
nk_foreach(cmd, ctx) {
switch (cmd->type) {
case NK_COMMAND_NOP: {
break;
}
case NK_COMMAND_SCISSOR: {
// TODO(RobLoach): Verify if NK_COMMAND_SCISSOR works.
const struct nk_command_scissor *s =(const struct nk_command_scissor*)cmd;
BeginScissorMode((int)(s->x * scale), (int)(s->y * scale), (int)(s->w * scale), (int)(s->h * scale));
} break;
case NK_COMMAND_LINE: {
const struct nk_command_line *l = (const struct nk_command_line *)cmd;
Color color = ColorFromNuklear(l->color);
Vector2 startPos = {(float)l->begin.x * scale, (float)l->begin.y * scale};
Vector2 endPos = {(float)l->end.x * scale, (float)l->end.y * scale};
DrawLineEx(startPos, endPos, l->line_thickness * scale, color);
} break;
case NK_COMMAND_CURVE: {
const struct nk_command_curve *q = (const struct nk_command_curve *)cmd;
Color color = ColorFromNuklear(q->color);
// Vector2 start = {(float)q->begin.x, (float)q->begin.y};
Vector2 start = {(float)q->begin.x * scale, (float)q->begin.y * scale};
// Vector2 controlPoint1 = (Vector2){q->ctrl[0].x, q->ctrl[0].y};
// Vector2 controlPoint2 = (Vector2){q->ctrl[1].x, q->ctrl[1].y};
// Vector2 end = {(float)q->end.x, (float)q->end.y};
Vector2 end = {(float)q->end.x * scale, (float)q->end.y * scale};
// TODO: Encorporate segmented control point bezier curve?
// DrawLineBezier(start, controlPoint1, (float)q->line_thickness, color);
// DrawLineBezier(controlPoint1, controlPoint2, (float)q->line_thickness, color);
// DrawLineBezier(controlPoint2, end, (float)q->line_thickness, color);
// DrawLineBezier(start, end, (float)q->line_thickness, color);
DrawLineBezier(start, end, (float)q->line_thickness * scale, color);
} break;
case NK_COMMAND_RECT: {
const struct nk_command_rect *r = (const struct nk_command_rect *)cmd;
Color color = ColorFromNuklear(r->color);
Rectangle rect = {(float)r->x * scale, (float)r->y * scale, (float)r->w * scale, (float)r->h * scale};
float roundness = (float)r->rounding * RAYLIB_NUKLEAR_ROUNDING_SCALE / (rect.width + rect.height);
if (roundness > 0.0f) {
DrawRectangleRoundedLines(rect, roundness, RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS, (float)r->line_thickness * scale, color);
}
else {
DrawRectangleLinesEx(rect, r->line_thickness * scale, color);
}
} break;
case NK_COMMAND_RECT_FILLED: {
const struct nk_command_rect_filled *r = (const struct nk_command_rect_filled *)cmd;
Color color = ColorFromNuklear(r->color);
Rectangle rect = {(float)r->x * scale, (float)r->y * scale, (float)r->w * scale, (float)r->h * scale};
float roundness = (float)r->rounding * RAYLIB_NUKLEAR_ROUNDING_SCALE / (rect.width + rect.height);
if (roundness > 0.0f) {
DrawRectangleRounded(rect, roundness, RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS, color);
}
else {
DrawRectangleRec(rect, color);
}
} break;
case NK_COMMAND_RECT_MULTI_COLOR: {
const struct nk_command_rect_multi_color* rectangle = (const struct nk_command_rect_multi_color *)cmd;
Rectangle position = {(float)rectangle->x * scale, (float)rectangle->y * scale, (float)rectangle->w * scale, (float)rectangle->h * scale};
Color left = ColorFromNuklear(rectangle->left);
Color top = ColorFromNuklear(rectangle->top);
Color bottom = ColorFromNuklear(rectangle->bottom);
Color right = ColorFromNuklear(rectangle->right);
DrawRectangleGradientEx(position, left, bottom, right, top);
} break;
case NK_COMMAND_CIRCLE: {
const struct nk_command_circle *c = (const struct nk_command_circle *)cmd;
Color color = ColorFromNuklear(c->color);
DrawEllipseLines((int)(c->x * scale + c->w * scale / 2.0f), (int)(c->y * scale + c->h * scale / 2.0f), (int)(c->w * scale / 2.0f), (int)(c->h * scale / 2.0f), color);
} break;
case NK_COMMAND_CIRCLE_FILLED: {
const struct nk_command_circle_filled *c = (const struct nk_command_circle_filled *)cmd;
Color color = ColorFromNuklear(c->color);
DrawEllipse((int)(c->x * scale + c->w * scale / 2.0f), (int)(c->y * scale + c->h * scale / 2.0f), (int)(c->w * scale / 2), (int)(c->h * scale / 2), color);
} break;
case NK_COMMAND_ARC: {
const struct nk_command_arc *a = (const struct nk_command_arc*)cmd;
Color color = ColorFromNuklear(a->color);
Vector2 center = {(float)a->cx, (float)a->cy};
DrawRingLines(center, 0, a->r * scale, a->a[0] * RAD2DEG - 45, a->a[1] * RAD2DEG - 45, RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS, color);
} break;
case NK_COMMAND_ARC_FILLED: {
const struct nk_command_arc_filled *a = (const struct nk_command_arc_filled*)cmd;
Color color = ColorFromNuklear(a->color);
Vector2 center = {(float)a->cx * scale, (float)a->cy * scale};
DrawRing(center, 0, a->r * scale, a->a[0] * RAD2DEG - 45, a->a[1] * RAD2DEG - 45, RAYLIB_NUKLEAR_DEFAULT_ARC_SEGMENTS, color);
} break;
case NK_COMMAND_TRIANGLE: {
const struct nk_command_triangle *t = (const struct nk_command_triangle*)cmd;
Color color = ColorFromNuklear(t->color);
Vector2 point1 = {(float)t->b.x * scale, (float)t->b.y * scale};
Vector2 point2 = {(float)t->a.x * scale, (float)t->a.y * scale};
Vector2 point3 = {(float)t->c.x * scale, (float)t->c.y * scale};
DrawTriangleLines(point1, point2, point3, color);
} break;
case NK_COMMAND_TRIANGLE_FILLED: {
const struct nk_command_triangle_filled *t = (const struct nk_command_triangle_filled*)cmd;
Color color = ColorFromNuklear(t->color);
Vector2 point1 = {(float)t->b.x * scale, (float)t->b.y * scale};
Vector2 point2 = {(float)t->a.x * scale, (float)t->a.y * scale};
Vector2 point3 = {(float)t->c.x * scale, (float)t->c.y * scale};
DrawTriangle(point1, point2, point3, color);
} break;
case NK_COMMAND_POLYGON: {
// TODO: Confirm Polygon
const struct nk_command_polygon *p = (const struct nk_command_polygon*)cmd;
Color color = ColorFromNuklear(p->color);
struct Vector2* points = (struct Vector2*)MemAlloc(p->point_count * (unsigned short)sizeof(Vector2));
unsigned short i;
for (i = 0; i < p->point_count; i++) {
points[i].x = p->points[i].x * scale;
points[i].y = p->points[i].y * scale;
}
DrawTriangleStrip(points, p->point_count, color);
MemFree(points);
} break;
case NK_COMMAND_POLYGON_FILLED: {
// TODO: Polygon filled expects counter clockwise order
const struct nk_command_polygon_filled *p = (const struct nk_command_polygon_filled*)cmd;
Color color = ColorFromNuklear(p->color);
struct Vector2* points = (struct Vector2*)MemAlloc(p->point_count * (unsigned short)sizeof(Vector2));
unsigned short i;
for (i = 0; i < p->point_count; i++) {
points[i].x = p->points[i].x * scale;
points[i].y = p->points[i].y * scale;
}
DrawTriangleFan(points, p->point_count, color);
MemFree(points);
} break;
case NK_COMMAND_POLYLINE: {
// TODO: Polygon expects counter clockwise order
const struct nk_command_polyline *p = (const struct nk_command_polyline *)cmd;
Color color = ColorFromNuklear(p->color);
struct Vector2* points = (struct Vector2*)MemAlloc(p->point_count * (unsigned short)sizeof(Vector2));
unsigned short i;
for (i = 0; i < p->point_count; i++) {
points[i].x = p->points[i].x * scale;
points[i].y = p->points[i].y * scale;
}
DrawTriangleStrip(points, p->point_count, color);
MemFree(points);
} break;
case NK_COMMAND_TEXT: {
const struct nk_command_text *text = (const struct nk_command_text*)cmd;
Color color = ColorFromNuklear(text->foreground);
float fontSize = text->font->height * scale;
Font* font = (Font*)text->font->userdata.ptr;
if (font != NULL) {
Vector2 position = {(float)text->x * scale, (float)text->y * scale};
DrawTextEx(*font, (const char*)text->string, position, fontSize, fontSize / 10.0f, color);
}
else {
DrawText((const char*)text->string, (int)(text->x * scale), (int)(text->y * scale), (int)fontSize, color);
}
} break;
case NK_COMMAND_IMAGE: {
const struct nk_command_image *i = (const struct nk_command_image *)cmd;
Texture texture = *(Texture*)i->img.handle.ptr;
Rectangle source = {0, 0, (float)texture.width, (float)texture.height};
Rectangle dest = {(float)i->x * scale, (float)i->y * scale, (float)i->w * scale, (float)i->h * scale};
Vector2 origin = {0, 0};
Color tint = ColorFromNuklear(i->col);
DrawTexturePro(texture, source, dest, origin, 0, tint);
} break;
case NK_COMMAND_CUSTOM: {
TraceLog(LOG_WARNING, "NUKLEAR: Unverified custom callback implementation NK_COMMAND_CUSTOM");
const struct nk_command_custom *custom = (const struct nk_command_custom *)cmd;
custom->callback(NULL, (short)(custom->x * scale), (short)(custom->y * scale), (unsigned short)(custom->w * scale), (unsigned short)(custom->h * scale), custom->callback_data);
} break;
default: {
TraceLog(LOG_WARNING, "NUKLEAR: Missing implementation %i", cmd->type);
} break;
}
}
nk_clear(ctx);
}
/**
* Update the Nuklear context for the keyboard input from raylib.
*
* @param ctx The nuklear context.
*
* @internal
*/
NK_API void nk_raylib_input_keyboard(struct nk_context * ctx)
{
bool control = IsKeyDown(KEY_LEFT_CONTROL) || IsKeyDown(KEY_RIGHT_CONTROL);
bool shift = IsKeyDown(KEY_LEFT_SHIFT) || IsKeyDown(KEY_RIGHT_SHIFT);
nk_input_key(ctx, NK_KEY_SHIFT, shift);
nk_input_key(ctx, NK_KEY_CTRL, control);
nk_input_key(ctx, NK_KEY_DEL, IsKeyDown(KEY_DELETE));
nk_input_key(ctx, NK_KEY_ENTER, IsKeyDown(KEY_ENTER) || IsKeyDown(KEY_KP_ENTER));
nk_input_key(ctx, NK_KEY_TAB, IsKeyDown(KEY_TAB));
nk_input_key(ctx, NK_KEY_BACKSPACE, IsKeyDown(KEY_BACKSPACE));
nk_input_key(ctx, NK_KEY_COPY, IsKeyPressed(KEY_C) && control);
nk_input_key(ctx, NK_KEY_CUT, IsKeyPressed(KEY_X) && control);
nk_input_key(ctx, NK_KEY_PASTE, IsKeyPressed(KEY_V) && control);
nk_input_key(ctx, NK_KEY_TEXT_LINE_START, IsKeyPressed(KEY_B) && control);
nk_input_key(ctx, NK_KEY_TEXT_LINE_END, IsKeyPressed(KEY_E) && control);
nk_input_key(ctx, NK_KEY_TEXT_UNDO, IsKeyDown(KEY_Z) && control);
nk_input_key(ctx, NK_KEY_TEXT_REDO, IsKeyDown(KEY_R) && control);
nk_input_key(ctx, NK_KEY_TEXT_SELECT_ALL, IsKeyDown(KEY_A) && control);
nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, IsKeyDown(KEY_LEFT) && control);
nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, IsKeyDown(KEY_RIGHT) && control);
nk_input_key(ctx, NK_KEY_LEFT, IsKeyDown(KEY_LEFT) && !control);
nk_input_key(ctx, NK_KEY_RIGHT, IsKeyDown(KEY_RIGHT) && !control);
//nk_input_key(ctx, NK_KEY_TEXT_INSERT_MODE, IsKeyDown());
//nk_input_key(ctx, NK_KEY_TEXT_REPLACE_MODE, IsKeyDown());
//nk_input_key(ctx, NK_KEY_TEXT_RESET_MODE, IsKeyDown());
nk_input_key(ctx, NK_KEY_UP, IsKeyDown(KEY_UP));
nk_input_key(ctx, NK_KEY_DOWN, IsKeyDown(KEY_DOWN));
nk_input_key(ctx, NK_KEY_TEXT_START, IsKeyDown(KEY_HOME));
nk_input_key(ctx, NK_KEY_TEXT_END, IsKeyDown(KEY_END));
nk_input_key(ctx, NK_KEY_SCROLL_START, IsKeyDown(KEY_HOME) && control);
nk_input_key(ctx, NK_KEY_SCROLL_END, IsKeyDown(KEY_END) && control);
nk_input_key(ctx, NK_KEY_SCROLL_DOWN, IsKeyDown(KEY_PAGE_DOWN));
nk_input_key(ctx, NK_KEY_SCROLL_UP, IsKeyDown(KEY_PAGE_UP));
// Keys
if (IsKeyPressed(KEY_APOSTROPHE)) nk_input_unicode(ctx, shift ? 34 : (nk_rune)KEY_APOSTROPHE);
if (IsKeyPressed(KEY_COMMA)) nk_input_unicode(ctx, shift ? 60 : (nk_rune)KEY_COMMA);
if (IsKeyPressed(KEY_MINUS)) nk_input_unicode(ctx, shift ? 95 : (nk_rune)KEY_MINUS);
if (IsKeyPressed(KEY_PERIOD)) nk_input_unicode(ctx, shift ? 62 : (nk_rune)KEY_PERIOD);
if (IsKeyPressed(KEY_SLASH)) nk_input_unicode(ctx, shift ? 63 : (nk_rune)KEY_SLASH);
if (IsKeyPressed(KEY_ZERO)) nk_input_unicode(ctx, shift ? 41 : (nk_rune)KEY_ZERO);
if (IsKeyPressed(KEY_ONE)) nk_input_unicode(ctx, shift ? 33 : (nk_rune)KEY_ONE);
if (IsKeyPressed(KEY_TWO)) nk_input_unicode(ctx, shift ? 64 : (nk_rune)KEY_TWO);
if (IsKeyPressed(KEY_THREE)) nk_input_unicode(ctx, shift ? 35 : (nk_rune)KEY_THREE);
if (IsKeyPressed(KEY_FOUR)) nk_input_unicode(ctx, shift ? 36 : (nk_rune)KEY_FOUR);
if (IsKeyPressed(KEY_FIVE)) nk_input_unicode(ctx, shift ? 37 : (nk_rune)KEY_FIVE);
if (IsKeyPressed(KEY_SIX)) nk_input_unicode(ctx, shift ? 94 : (nk_rune)KEY_SIX);
if (IsKeyPressed(KEY_SEVEN)) nk_input_unicode(ctx, shift ? 38 : (nk_rune)KEY_SEVEN);
if (IsKeyPressed(KEY_EIGHT)) nk_input_unicode(ctx, shift ? 42 : (nk_rune)KEY_EIGHT);
if (IsKeyPressed(KEY_NINE)) nk_input_unicode(ctx, shift ? 40 : (nk_rune)KEY_NINE);
if (IsKeyPressed(KEY_SEMICOLON)) nk_input_unicode(ctx, shift ? 41 : (nk_rune)KEY_SEMICOLON);
if (IsKeyPressed(KEY_EQUAL)) nk_input_unicode(ctx, shift ? 43 : (nk_rune)KEY_EQUAL);
if (IsKeyPressed(KEY_A)) nk_input_unicode(ctx, shift ? KEY_A : KEY_A + 32);
if (IsKeyPressed(KEY_B)) nk_input_unicode(ctx, shift ? KEY_B : KEY_B + 32);
if (IsKeyPressed(KEY_C)) nk_input_unicode(ctx, shift ? KEY_C : KEY_C + 32);
if (IsKeyPressed(KEY_D)) nk_input_unicode(ctx, shift ? KEY_D : KEY_D + 32);
if (IsKeyPressed(KEY_E)) nk_input_unicode(ctx, shift ? KEY_E : KEY_E + 32);
if (IsKeyPressed(KEY_F)) nk_input_unicode(ctx, shift ? KEY_F : KEY_F + 32);
if (IsKeyPressed(KEY_G)) nk_input_unicode(ctx, shift ? KEY_G : KEY_G + 32);
if (IsKeyPressed(KEY_H)) nk_input_unicode(ctx, shift ? KEY_H : KEY_H + 32);
if (IsKeyPressed(KEY_I)) nk_input_unicode(ctx, shift ? KEY_I : KEY_I + 32);
if (IsKeyPressed(KEY_J)) nk_input_unicode(ctx, shift ? KEY_J : KEY_J + 32);
if (IsKeyPressed(KEY_K)) nk_input_unicode(ctx, shift ? KEY_K : KEY_K + 32);
if (IsKeyPressed(KEY_L)) nk_input_unicode(ctx, shift ? KEY_L : KEY_L + 32);
if (IsKeyPressed(KEY_M)) nk_input_unicode(ctx, shift ? KEY_M : KEY_M + 32);
if (IsKeyPressed(KEY_N)) nk_input_unicode(ctx, shift ? KEY_N : KEY_N + 32);
if (IsKeyPressed(KEY_O)) nk_input_unicode(ctx, shift ? KEY_O : KEY_O + 32);
if (IsKeyPressed(KEY_P)) nk_input_unicode(ctx, shift ? KEY_P : KEY_P + 32);
if (IsKeyPressed(KEY_Q)) nk_input_unicode(ctx, shift ? KEY_Q : KEY_Q + 32);
if (IsKeyPressed(KEY_R)) nk_input_unicode(ctx, shift ? KEY_R : KEY_R + 32);
if (IsKeyPressed(KEY_S)) nk_input_unicode(ctx, shift ? KEY_S : KEY_S + 32);
if (IsKeyPressed(KEY_T)) nk_input_unicode(ctx, shift ? KEY_T : KEY_T + 32);
if (IsKeyPressed(KEY_U)) nk_input_unicode(ctx, shift ? KEY_U : KEY_U + 32);
if (IsKeyPressed(KEY_V)) nk_input_unicode(ctx, shift ? KEY_V : KEY_V + 32);
if (IsKeyPressed(KEY_W)) nk_input_unicode(ctx, shift ? KEY_W : KEY_W + 32);
if (IsKeyPressed(KEY_X)) nk_input_unicode(ctx, shift ? KEY_X : KEY_X + 32);
if (IsKeyPressed(KEY_Y)) nk_input_unicode(ctx, shift ? KEY_Y : KEY_Y + 32);
if (IsKeyPressed(KEY_Z)) nk_input_unicode(ctx, shift ? KEY_Z : KEY_Z + 32);
if (IsKeyPressed(KEY_LEFT_BRACKET)) nk_input_unicode(ctx, shift ? 123 : (nk_rune)KEY_LEFT_BRACKET);
if (IsKeyPressed(KEY_BACKSLASH)) nk_input_unicode(ctx, shift ? 124 : (nk_rune)KEY_BACKSLASH);
if (IsKeyPressed(KEY_RIGHT_BRACKET)) nk_input_unicode(ctx, shift ? 125 : (nk_rune)KEY_RIGHT_BRACKET);
if (IsKeyPressed(KEY_GRAVE)) nk_input_unicode(ctx, shift ? 126 : (nk_rune)KEY_GRAVE);
// Functions
if (IsKeyPressed(KEY_SPACE)) nk_input_unicode(ctx, KEY_SPACE);
if (IsKeyPressed(KEY_TAB)) nk_input_unicode(ctx, 9);
// Keypad
if (IsKeyPressed(KEY_KP_0)) nk_input_unicode(ctx, KEY_ZERO);
if (IsKeyPressed(KEY_KP_1)) nk_input_unicode(ctx, KEY_ONE);
if (IsKeyPressed(KEY_KP_2)) nk_input_unicode(ctx, KEY_TWO);
if (IsKeyPressed(KEY_KP_3)) nk_input_unicode(ctx, KEY_THREE);
if (IsKeyPressed(KEY_KP_4)) nk_input_unicode(ctx, KEY_FOUR);
if (IsKeyPressed(KEY_KP_5)) nk_input_unicode(ctx, KEY_FIVE);
if (IsKeyPressed(KEY_KP_6)) nk_input_unicode(ctx, KEY_SIX);
if (IsKeyPressed(KEY_KP_7)) nk_input_unicode(ctx, KEY_SEVEN);
if (IsKeyPressed(KEY_KP_8)) nk_input_unicode(ctx, KEY_EIGHT);
if (IsKeyPressed(KEY_KP_9)) nk_input_unicode(ctx, KEY_NINE);
if (IsKeyPressed(KEY_KP_DECIMAL)) nk_input_unicode(ctx, KEY_PERIOD);
if (IsKeyPressed(KEY_KP_DIVIDE)) nk_input_unicode(ctx, KEY_SLASH);
if (IsKeyPressed(KEY_KP_MULTIPLY)) nk_input_unicode(ctx, 48);
if (IsKeyPressed(KEY_KP_SUBTRACT)) nk_input_unicode(ctx, 45);
if (IsKeyPressed(KEY_KP_ADD)) nk_input_unicode(ctx, 43);
}
/**
* Update the Nuklear context for the mouse input from raylib.
*
* @param ctx The nuklear context.
*
* @internal
*/
NK_API void nk_raylib_input_mouse(struct nk_context * ctx)
{
const float scale = GetNuklearScaling(ctx);
const int mouseX = (int)((float)GetMouseX() / scale);
const int mouseY = (int)((float)GetMouseY() / scale);
nk_input_motion(ctx, mouseX, mouseY);
nk_input_button(ctx, NK_BUTTON_LEFT, mouseX, mouseY, IsMouseButtonDown(MOUSE_LEFT_BUTTON));
nk_input_button(ctx, NK_BUTTON_RIGHT, mouseX, mouseY, IsMouseButtonDown(MOUSE_RIGHT_BUTTON));
nk_input_button(ctx, NK_BUTTON_MIDDLE, mouseX, mouseY, IsMouseButtonDown(MOUSE_MIDDLE_BUTTON));
// Mouse Wheel
float mouseWheel = GetMouseWheelMove();
if (mouseWheel != 0.0f) {
struct nk_vec2 mouseWheelMove;
mouseWheelMove.x = 0.0f;
mouseWheelMove.y = mouseWheel;
nk_input_scroll(ctx, mouseWheelMove);
}
}
/**
* Update the Nuklear context for raylib's state.
*
* @param ctx The nuklear context to act upon.
*/
NK_API void
UpdateNuklear(struct nk_context * ctx)
{
// Update the time that has changed since last frame.
ctx->delta_time_seconds = GetFrameTime();
// Update the input state.
nk_input_begin(ctx);
{
nk_raylib_input_mouse(ctx);
nk_raylib_input_keyboard(ctx);
}
nk_input_end(ctx);
}
/**
* Unload the given Nuklear context, along with all internal raylib textures.
*
* @param ctx The nuklear context.
*/
NK_API void
UnloadNuklear(struct nk_context * ctx)
{
struct nk_user_font* userFont;
// Skip unloading if it's not set.
if (ctx == NULL) {
return;
}
// Unload the font.
userFont = (struct nk_user_font*)ctx->style.font;
if (userFont != NULL) {
// Clear the raylib Font object.
void* fontPtr = userFont->userdata.ptr;
if (fontPtr != NULL) {
MemFree(fontPtr);
}
// Clear the user font.
MemFree(userFont);
ctx->style.font = NULL;
}
// Unload the custom user data.
if (ctx->userdata.ptr != NULL) {
MemFree(ctx->userdata.ptr);
}
// Unload the nuklear context.
nk_free(ctx);
TraceLog(LOG_INFO, "NUKLEAR: Unloaded GUI");
}
/**
* Convert the given Nuklear rectangle to a raylib Rectangle.
*/
NK_API struct
Rectangle RectangleFromNuklear(struct nk_context* ctx, struct nk_rect rect)
{
float scaling = GetNuklearScaling(ctx);
Rectangle output;
output.x = rect.x * scaling;
output.y = rect.y * scaling;
output.width = rect.w * scaling;
output.height = rect.h * scaling;
return output;
}
/**
* Convert the given raylib Rectangle to a Nuklear rectangle.
*/
NK_API struct
nk_rect RectangleToNuklear(struct nk_context* ctx, Rectangle rect)
{
float scaling = GetNuklearScaling(ctx);
return nk_rect(rect.x / scaling, rect.y / scaling, rect.width / scaling, rect.height / scaling);
}
/**
* Convert the given raylib texture to a Nuklear image
*/
NK_API struct nk_image TextureToNuklear(Texture tex)
{
// Declare the img to store data and allocate memory
// For the texture
struct nk_image img;
struct Texture* stored_tex = (struct Texture*)MemAlloc(sizeof(Texture));
// Copy the data from the texture given into the new texture
stored_tex->id = tex.id;
stored_tex->width = tex.width;
stored_tex->height = tex.height;
stored_tex->mipmaps = tex.mipmaps;
stored_tex->format = tex.format;
// Initialize the nk_image struct
img.handle.ptr = stored_tex;
img.w = (nk_ushort)stored_tex->width;
img.h = (nk_ushort)stored_tex->height;
return img;
}
/**
* Convert the given Nuklear image to a raylib Texture
*/
NK_API struct Texture TextureFromNuklear(struct nk_image img)
{
// Declare texture for storage
// And get back the stored texture
Texture tex;
Texture* stored_tex = (Texture*)img.handle.ptr;
// Copy the data from the stored texture to the texture
tex.id = stored_tex->id;
tex.width = stored_tex->width;
tex.height = stored_tex->height;
tex.mipmaps = stored_tex->mipmaps;
tex.format = stored_tex->format;
return tex;
}
/**
* Load a Nuklear image directly
*
* @param path The path to the image
*/
NK_API struct nk_image LoadNuklearImage(const char* path)
{
return TextureToNuklear(LoadTexture(path));
}
/**
* Unload a loaded Nuklear image
*
* @param img The Nuklear image to unload
*/
NK_API void UnloadNuklearImage(struct nk_image img)
{
Texture tex = TextureFromNuklear(img);
UnloadTexture(tex);
CleanupNuklearImage(img);
}
/**
* Cleans up memory used by a Nuklear image
* Does not unload the image.
*
* @param img The Nuklear image to cleanup
*/
NK_API void CleanupNuklearImage(struct nk_image img)
{
MemFree(img.handle.ptr);
}
/**
* Sets the scaling of the given Nuklear context.
*
* @param ctx The nuklear context.
* @param scaling How much scale to apply to the graphical user interface.
*/
NK_API void SetNuklearScaling(struct nk_context * ctx, float scaling)
{
if (ctx == NULL) {
return;
}
if (scaling <= 0.0f) {
TraceLog(LOG_WARNING, "NUKLEAR: Cannot set scaling to be less than 0");
return;
}
struct NuklearUserData* userData = (struct NuklearUserData*)ctx->userdata.ptr;
if (userData != NULL) {
userData->scaling = scaling;
}
}
/**
* Retrieves the scale value of the given Nuklear context.
*
* @return The scale value that had been set for the Nuklear context. 1.0f is the default scale value.
*/
NK_API float GetNuklearScaling(struct nk_context * ctx)
{
if (ctx == NULL) {
return 1.0f;
}
struct NuklearUserData* userData = (struct NuklearUserData*)ctx->userdata.ptr;
if (userData != NULL) {
return userData->scaling;
}
return 1.0f;
}
#ifdef __cplusplus
}
#endif
#endif // RAYLIB_NUKLEAR_IMPLEMENTATION_ONCE
#endif // RAYLIB_NUKLEAR_IMPLEMENTATION