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Merge remote-tracking branch 'upstream/master'

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This commit is contained in:
Richard Gill 2022-10-07 19:00:18 +02:00
commit 96eca2ecc3
6 changed files with 1479 additions and 31 deletions
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6
demo/gdi_native_nuklear/build.bat Normal file
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@echo off
rem This will use VS2015 for compiler
call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
cl /nologo /W3 /O2 /fp:fast /Gm- /D_CRT_SECURE_NO_DEPRECATE /Fedemo.exe main.c user32.lib gdi32.lib Msimg32.lib /link /incremental:no

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demo/gdi_native_nuklear/main.c Normal file
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#include <windows.h>
#pragma comment(linker,"\"/manifestdependency:type='win32' \
name='Microsoft.Windows.Common-Controls' version='6.0.0.0' \
processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
/* Includes the default nuklear implementation
* Includes the modified GDI backend (No more global state to allow multiple hwnd's)
*/
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_IMPLEMENTATION
#define NK_GDI_IMPLEMENTATION
#include "../../nuklear.h"
#include "nuklear_gdi.h"
/* Include the window framework (the new fancy code of this demo) */
#define NKGDI_IMPLEMENT_WINDOW
#include "window.h"
/* This callback will be called when the window is draw
* You will NOT need to call nk_begin(...) and nk_end(...)
* begin and end are handled by the parent code calling this
* callback
*/
int drawCallback(struct nk_context* ctx)
{
/* Code is from ../calculator.c */
static int set = 0, prev = 0, op = 0;
static const char numbers[] = "789456123";
static const char ops[] = "+-*/";
static double a = 0, b = 0;
static double *current = &a;
size_t i = 0;
int solve = 0;
{int len; char buffer[256];
nk_layout_row_dynamic(ctx, 35, 1);
len = snprintf(buffer, 256, "%.2f", *current);
nk_edit_string(ctx, NK_EDIT_SIMPLE, buffer, &len, 255, nk_filter_float);
buffer[len] = 0;
*current = atof(buffer);}
nk_layout_row_dynamic(ctx, 35, 4);
for (i = 0; i < 16; ++i) {
if (i >= 12 && i < 15) {
if (i > 12) continue;
if (nk_button_label(ctx, "C")) {
a = b = op = 0; current = &a; set = 0;
} if (nk_button_label(ctx, "0")) {
*current = *current*10.0f; set = 0;
} if (nk_button_label(ctx, "=")) {
solve = 1; prev = op; op = 0;
}
} else if (((i+1) % 4)) {
if (nk_button_text(ctx, &numbers[(i/4)*3+i%4], 1)) {
*current = *current * 10.0f + numbers[(i/4)*3+i%4] - '0';
set = 0;
}
} else if (nk_button_text(ctx, &ops[i/4], 1)) {
if (!set) {
if (current != &b) {
current = &b;
} else {
prev = op;
solve = 1;
}
}
op = ops[i/4];
set = 1;
}
}
if (solve) {
if (prev == '+') a = a + b;
if (prev == '-') a = a - b;
if (prev == '*') a = a * b;
if (prev == '/') a = a / b;
current = &a;
if (set) current = &b;
b = 0; set = 0;
}
return 1;
}
/* Main entry point - wWinMain used for UNICODE
* (You can also use _tWinMain(...) to automaticaly use the ASCII or WIDE char entry point base on your build)
*/
INT WINAPI wWinMain(HINSTANCE _In_ hInstance, HINSTANCE _In_opt_ hPrevInstance, PWSTR _In_ cmdArgs, INT _In_ cmdShow)
{
/* Call this first to setup all required prerequisites */
nkgdi_window_init();
/* Preparing two window contexts */
struct nkgdi_window w1, w2;
memset(&w1, 0x0, sizeof(struct nkgdi_window));
memset(&w2, 0x0, sizeof(struct nkgdi_window));
/* Configure and create window 1.
* Note: You can allways change the direct accesible parameters later as well!
*/
w1.allow_sizing = 0;
w1.allow_maximize = 0;
w1.allow_move = 0;
w1.has_titlebar = 0;
w1.cb_on_draw = &drawCallback;
nkgdi_window_create(&w1, 500, 500, "F1", 10, 10);
/* Configure and create window 2 */
w2.allow_sizing = 1;
w2.allow_maximize = 1;
w2.allow_move = 1;
w2.has_titlebar = 1;
w2.cb_on_draw = &drawCallback;
nkgdi_window_create(&w2, 500, 500, "F2", 520, 10);
/* As long as both windows are valid (nkgdi_window_update returning 1) */
while (nkgdi_window_update(&w1) && nkgdi_window_update(&w2)) Sleep(20);
/* Destroy both windows context */
nkgdi_window_destroy(&w1);
nkgdi_window_destroy(&w2);
/* Call nkgdi_window_shutdown to properly shutdown the gdi window framework */
nkgdi_window_shutdown();
return 0;
}

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demo/gdi_native_nuklear/nuklear_gdi.h Normal file
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/*
* Nuklear - 1.32.0 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*
* Modified GDI backend 2022
* Now based on a context that is required for each API function call.
* Removes the global state --> you can have multiple windows :-)
*
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GDI_H_
#define NK_GDI_H_
#ifdef __cplusplus
extern "C"{
#endif
typedef struct GdiFont GdiFont;
struct _nk_gdi_ctx;
typedef struct _nk_gdi_ctx* nk_gdi_ctx;
NK_API struct nk_context* nk_gdi_init(nk_gdi_ctx* gdi, GdiFont* font, HDC window_dc, unsigned int width, unsigned int height);
NK_API int nk_gdi_handle_event(nk_gdi_ctx gdi, HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
NK_API void nk_gdi_render(nk_gdi_ctx gdi, struct nk_color clear);
NK_API void nk_gdi_shutdown(nk_gdi_ctx gdi);
/* font */
NK_API GdiFont* nk_gdifont_create(const char* name, int size);
NK_API void nk_gdifont_del(GdiFont* font);
NK_API void nk_gdi_set_font(nk_gdi_ctx gdi, GdiFont* font);
#ifdef __cplusplus
}
#endif
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GDI_IMPLEMENTATION
#include <stdlib.h>
#include <malloc.h>
struct GdiFont {
struct nk_user_font nk;
int height;
HFONT handle;
HDC dc;
};
struct _nk_gdi_ctx {
HBITMAP bitmap;
HDC window_dc;
HDC memory_dc;
unsigned int width;
unsigned int height;
struct nk_context ctx;
};
static void
nk_create_image(struct nk_image* image, const char* frame_buffer, const int width, const int height)
{
if (image && frame_buffer && (width > 0) && (height > 0))
{
const unsigned char* src = (const unsigned char*)frame_buffer;
INT row = ((width * 3 + 3) & ~3);
LPBYTE lpBuf, pb = NULL;
BITMAPINFO bi = { 0 };
HBITMAP hbm;
int v, i;
image->w = width;
image->h = height;
image->region[0] = 0;
image->region[1] = 0;
image->region[2] = width;
image->region[3] = height;
bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bi.bmiHeader.biWidth = width;
bi.bmiHeader.biHeight = height;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 24;
bi.bmiHeader.biCompression = BI_RGB;
bi.bmiHeader.biSizeImage = row * height;
hbm = CreateDIBSection(NULL, &bi, DIB_RGB_COLORS, (void**)&lpBuf, NULL, 0);
pb = lpBuf + row * height;
for (v = 0; v < height; v++)
{
pb -= row;
for (i = 0; i < row; i += 3)
{
pb[i + 0] = src[0];
pb[i + 1] = src[1];
pb[i + 2] = src[2];
src += 3;
}
}
SetDIBits(NULL, hbm, 0, height, lpBuf, &bi, DIB_RGB_COLORS);
image->handle.ptr = hbm;
}
}
static void
nk_delete_image(struct nk_image* image)
{
if (image && image->handle.id != 0)
{
HBITMAP hbm = (HBITMAP)image->handle.ptr;
DeleteObject(hbm);
memset(image, 0, sizeof(struct nk_image));
}
}
static void
nk_gdi_draw_image(nk_gdi_ctx gdi, short x, short y, unsigned short w, unsigned short h,
struct nk_image img, struct nk_color col)
{
HBITMAP hbm = (HBITMAP)img.handle.ptr;
HDC hDCBits;
BITMAP bitmap;
if (!gdi->memory_dc || !hbm)
return;
hDCBits = CreateCompatibleDC(gdi->memory_dc);
GetObject(hbm, sizeof(BITMAP), (LPSTR)&bitmap);
SelectObject(hDCBits, hbm);
StretchBlt(gdi->memory_dc, x, y, w, h, hDCBits, 0, 0, bitmap.bmWidth, bitmap.bmHeight, SRCCOPY);
DeleteDC(hDCBits);
}
static COLORREF
convert_color(struct nk_color c)
{
return c.r | (c.g << 8) | (c.b << 16);
}
static void
nk_gdi_scissor(HDC dc, float x, float y, float w, float h)
{
SelectClipRgn(dc, NULL);
IntersectClipRect(dc, (int)x, (int)y, (int)(x + w + 1), (int)(y + h + 1));
}
static void
nk_gdi_stroke_line(HDC dc, short x0, short y0, short x1,
short y1, unsigned int line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
MoveToEx(dc, x0, y0, NULL);
LineTo(dc, x1, y1);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_stroke_rect(HDC dc, short x, short y, unsigned short w,
unsigned short h, unsigned short r, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HGDIOBJ br;
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
br = SelectObject(dc, GetStockObject(NULL_BRUSH));
if (r == 0) {
Rectangle(dc, x, y, x + w, y + h);
}
else {
RoundRect(dc, x, y, x + w, y + h, r, r);
}
SelectObject(dc, br);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_fill_rect(HDC dc, short x, short y, unsigned short w,
unsigned short h, unsigned short r, struct nk_color col)
{
COLORREF color = convert_color(col);
if (r == 0) {
RECT rect;
SetRect(&rect, x, y, x + w, y + h);
SetBkColor(dc, color);
ExtTextOutW(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
}
else {
SetDCPenColor(dc, color);
SetDCBrushColor(dc, color);
RoundRect(dc, x, y, x + w, y + h, r, r);
}
}
static void
nk_gdi_set_vertexColor(PTRIVERTEX tri, struct nk_color col)
{
tri->Red = col.r << 8;
tri->Green = col.g << 8;
tri->Blue = col.b << 8;
tri->Alpha = 0xff << 8;
}
static void
nk_gdi_rect_multi_color(nk_gdi_ctx gdi, HDC dc, short x, short y, unsigned short w,
unsigned short h, struct nk_color left, struct nk_color top,
struct nk_color right, struct nk_color bottom)
{
BLENDFUNCTION alphaFunction;
// GRADIENT_RECT gRect;
GRADIENT_TRIANGLE gTri[2];
TRIVERTEX vt[4];
alphaFunction.BlendOp = AC_SRC_OVER;
alphaFunction.BlendFlags = 0;
alphaFunction.SourceConstantAlpha = 0;
alphaFunction.AlphaFormat = AC_SRC_ALPHA;
/* TODO: This Case Needs Repair.*/
/* Top Left Corner */
vt[0].x = x;
vt[0].y = y;
nk_gdi_set_vertexColor(&vt[0], left);
/* Top Right Corner */
vt[1].x = x + w;
vt[1].y = y;
nk_gdi_set_vertexColor(&vt[1], top);
/* Bottom Left Corner */
vt[2].x = x;
vt[2].y = y + h;
nk_gdi_set_vertexColor(&vt[2], right);
/* Bottom Right Corner */
vt[3].x = x + w;
vt[3].y = y + h;
nk_gdi_set_vertexColor(&vt[3], bottom);
gTri[0].Vertex1 = 0;
gTri[0].Vertex2 = 1;
gTri[0].Vertex3 = 2;
gTri[1].Vertex1 = 2;
gTri[1].Vertex2 = 1;
gTri[1].Vertex3 = 3;
GdiGradientFill(dc, vt, 4, gTri, 2, GRADIENT_FILL_TRIANGLE);
AlphaBlend(gdi->window_dc, x, y, x + w, y + h, gdi->memory_dc, x, y, x + w, y + h, alphaFunction);
}
static BOOL
SetPoint(POINT* p, LONG x, LONG y)
{
if (!p)
return FALSE;
p->x = x;
p->y = y;
return TRUE;
}
static void
nk_gdi_fill_triangle(HDC dc, short x0, short y0, short x1,
short y1, short x2, short y2, struct nk_color col)
{
COLORREF color = convert_color(col);
POINT points[3];
SetPoint(&points[0], x0, y0);
SetPoint(&points[1], x1, y1);
SetPoint(&points[2], x2, y2);
SetDCPenColor(dc, color);
SetDCBrushColor(dc, color);
Polygon(dc, points, 3);
}
static void
nk_gdi_stroke_triangle(HDC dc, short x0, short y0, short x1,
short y1, short x2, short y2, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
POINT points[4];
HPEN pen = NULL;
SetPoint(&points[0], x0, y0);
SetPoint(&points[1], x1, y1);
SetPoint(&points[2], x2, y2);
SetPoint(&points[3], x0, y0);
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
Polyline(dc, points, 4);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_fill_polygon(HDC dc, const struct nk_vec2i* pnts, int count, struct nk_color col)
{
int i = 0;
#define MAX_POINTS 64
POINT points[MAX_POINTS];
COLORREF color = convert_color(col);
SetDCBrushColor(dc, color);
SetDCPenColor(dc, color);
for (i = 0; i < count && i < MAX_POINTS; ++i) {
points[i].x = pnts[i].x;
points[i].y = pnts[i].y;
}
Polygon(dc, points, i);
#undef MAX_POINTS
}
static void
nk_gdi_stroke_polygon(HDC dc, const struct nk_vec2i* pnts, int count,
unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
if (count > 0) {
int i;
MoveToEx(dc, pnts[0].x, pnts[0].y, NULL);
for (i = 1; i < count; ++i)
LineTo(dc, pnts[i].x, pnts[i].y);
LineTo(dc, pnts[0].x, pnts[0].y);
}
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_stroke_polyline(HDC dc, const struct nk_vec2i* pnts,
int count, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
if (count > 0) {
int i;
MoveToEx(dc, pnts[0].x, pnts[0].y, NULL);
for (i = 1; i < count; ++i)
LineTo(dc, pnts[i].x, pnts[i].y);
}
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_fill_circle(HDC dc, short x, short y, unsigned short w,
unsigned short h, struct nk_color col)
{
COLORREF color = convert_color(col);
SetDCBrushColor(dc, color);
SetDCPenColor(dc, color);
Ellipse(dc, x, y, x + w, y + h);
}
static void
nk_gdi_stroke_circle(HDC dc, short x, short y, unsigned short w,
unsigned short h, unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
HPEN pen = NULL;
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
SetDCBrushColor(dc, OPAQUE);
Ellipse(dc, x, y, x + w, y + h);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_stroke_curve(HDC dc, struct nk_vec2i p1,
struct nk_vec2i p2, struct nk_vec2i p3, struct nk_vec2i p4,
unsigned short line_thickness, struct nk_color col)
{
COLORREF color = convert_color(col);
POINT p[4];
HPEN pen = NULL;
SetPoint(&p[0], p1.x, p1.y);
SetPoint(&p[1], p2.x, p2.y);
SetPoint(&p[2], p3.x, p3.y);
SetPoint(&p[3], p4.x, p4.y);
if (line_thickness == 1) {
SetDCPenColor(dc, color);
}
else {
pen = CreatePen(PS_SOLID, line_thickness, color);
SelectObject(dc, pen);
}
SetDCBrushColor(dc, OPAQUE);
PolyBezier(dc, p, 4);
if (pen) {
SelectObject(dc, GetStockObject(DC_PEN));
DeleteObject(pen);
}
}
static void
nk_gdi_draw_text(HDC dc, short x, short y, unsigned short w, unsigned short h,
const char* text, int len, GdiFont* font, struct nk_color cbg, struct nk_color cfg)
{
int wsize;
WCHAR* wstr;
if (!text || !font || !len) return;
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
wstr = (WCHAR*)_alloca(wsize * sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
SetBkColor(dc, convert_color(cbg));
SetTextColor(dc, convert_color(cfg));
SelectObject(dc, font->handle);
ExtTextOutW(dc, x, y, ETO_OPAQUE, NULL, wstr, wsize, NULL);
}
static void
nk_gdi_clear(nk_gdi_ctx gdi, HDC dc, struct nk_color col)
{
COLORREF color = convert_color(col);
RECT rect;
SetRect(&rect, 0, 0, gdi->width, gdi->height);
SetBkColor(dc, color);
ExtTextOutW(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
}
static void
nk_gdi_blit(nk_gdi_ctx gdi, HDC dc)
{
BitBlt(dc, 0, 0, gdi->width, gdi->height, gdi->memory_dc, 0, 0, SRCCOPY);
}
GdiFont*
nk_gdifont_create(const char* name, int size)
{
TEXTMETRICW metric;
GdiFont* font = (GdiFont*)calloc(1, sizeof(GdiFont));
if (!font)
return NULL;
font->dc = CreateCompatibleDC(0);
font->handle = CreateFontA(size, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, DEFAULT_PITCH | FF_DONTCARE, name);
SelectObject(font->dc, font->handle);
GetTextMetricsW(font->dc, &metric);
font->height = metric.tmHeight;
return font;
}
static float
nk_gdifont_get_text_width(nk_handle handle, float height, const char* text, int len)
{
GdiFont* font = (GdiFont*)handle.ptr;
SIZE size;
int wsize;
WCHAR* wstr;
if (!font || !text)
return 0;
wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
wstr = (WCHAR*)_alloca(wsize * sizeof(wchar_t));
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
if (GetTextExtentPoint32W(font->dc, wstr, wsize, &size))
return (float)size.cx;
return -1.0f;
}
void
nk_gdifont_del(GdiFont* font)
{
if (!font) return;
DeleteObject(font->handle);
DeleteDC(font->dc);
free(font);
}
static void
nk_gdi_clipboard_paste(nk_handle usr, struct nk_text_edit* edit)
{
(void)usr;
if (IsClipboardFormatAvailable(CF_UNICODETEXT) && OpenClipboard(NULL))
{
HGLOBAL mem = GetClipboardData(CF_UNICODETEXT);
if (mem)
{
SIZE_T size = GlobalSize(mem) - 1;
if (size)
{
LPCWSTR wstr = (LPCWSTR)GlobalLock(mem);
if (wstr)
{
int utf8size = WideCharToMultiByte(CP_UTF8, 0, wstr, (int)(size / sizeof(wchar_t)), NULL, 0, NULL, NULL);
if (utf8size)
{
char* utf8 = (char*)malloc(utf8size);
if (utf8)
{
WideCharToMultiByte(CP_UTF8, 0, wstr, (int)(size / sizeof(wchar_t)), utf8, utf8size, NULL, NULL);
nk_textedit_paste(edit, utf8, utf8size);
free(utf8);
}
}
GlobalUnlock(mem);
}
}
}
CloseClipboard();
}
}
static void
nk_gdi_clipboard_copy(nk_handle usr, const char* text, int len)
{
if (OpenClipboard(NULL))
{
int wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
if (wsize)
{
HGLOBAL mem = (HGLOBAL)GlobalAlloc(GMEM_MOVEABLE, (wsize + 1) * sizeof(wchar_t));
if (mem)
{
wchar_t* wstr = (wchar_t*)GlobalLock(mem);
if (wstr)
{
MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
wstr[wsize] = 0;
GlobalUnlock(mem);
SetClipboardData(CF_UNICODETEXT, mem);
}
}
}
CloseClipboard();
}
}
NK_API struct nk_context*
nk_gdi_init(nk_gdi_ctx* gdi, GdiFont* gdifont, HDC window_dc, unsigned int width, unsigned int height)
{
*gdi = (nk_gdi_ctx)malloc(sizeof(struct _nk_gdi_ctx));
struct nk_user_font* font = &gdifont->nk;
font->userdata = nk_handle_ptr(gdifont);
font->height = (float)gdifont->height;
font->width = nk_gdifont_get_text_width;
(*gdi)->bitmap = CreateCompatibleBitmap(window_dc, width, height);
(*gdi)->window_dc = window_dc;
(*gdi)->memory_dc = CreateCompatibleDC(window_dc);
(*gdi)->width = width;
(*gdi)->height = height;
SelectObject((*gdi)->memory_dc, (*gdi)->bitmap);
nk_init_default(&(*gdi)->ctx, font);
(*gdi)->ctx.clip.copy = nk_gdi_clipboard_copy;
(*gdi)->ctx.clip.paste = nk_gdi_clipboard_paste;
return &(*gdi)->ctx;
}
NK_API void
nk_gdi_set_font(nk_gdi_ctx gdi, GdiFont* gdifont)
{
struct nk_user_font* font = &gdifont->nk;
font->userdata = nk_handle_ptr(gdifont);
font->height = (float)gdifont->height;
font->width = nk_gdifont_get_text_width;
nk_style_set_font(&gdi->ctx, font);
}
NK_API int
nk_gdi_handle_event(nk_gdi_ctx gdi, HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg)
{
case WM_SIZE:
{
unsigned width = LOWORD(lparam);
unsigned height = HIWORD(lparam);
if (width != gdi->width || height != gdi->height)
{
DeleteObject(gdi->bitmap);
gdi->bitmap = CreateCompatibleBitmap(gdi->window_dc, width, height);
gdi->width = width;
gdi->height = height;
SelectObject(gdi->memory_dc, gdi->bitmap);
}
break;
}
case WM_PAINT:
{
PAINTSTRUCT paint;
HDC dc = BeginPaint(wnd, &paint);
nk_gdi_blit(gdi, dc);
EndPaint(wnd, &paint);
return 1;
}
case WM_KEYDOWN:
case WM_KEYUP:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
{
int down = !((lparam >> 31) & 1);
int ctrl = GetKeyState(VK_CONTROL) & (1 << 15);
switch (wparam)
{
case VK_SHIFT:
case VK_LSHIFT:
case VK_RSHIFT:
nk_input_key(&gdi->ctx, NK_KEY_SHIFT, down);
return 1;
case VK_DELETE:
nk_input_key(&gdi->ctx, NK_KEY_DEL, down);
return 1;
case VK_RETURN:
nk_input_key(&gdi->ctx, NK_KEY_ENTER, down);
return 1;
case VK_TAB:
nk_input_key(&gdi->ctx, NK_KEY_TAB, down);
return 1;
case VK_LEFT:
if (ctrl)
nk_input_key(&gdi->ctx, NK_KEY_TEXT_WORD_LEFT, down);
else
nk_input_key(&gdi->ctx, NK_KEY_LEFT, down);
return 1;
case VK_RIGHT:
if (ctrl)
nk_input_key(&gdi->ctx, NK_KEY_TEXT_WORD_RIGHT, down);
else
nk_input_key(&gdi->ctx, NK_KEY_RIGHT, down);
return 1;
case VK_BACK:
nk_input_key(&gdi->ctx, NK_KEY_BACKSPACE, down);
return 1;
case VK_HOME:
nk_input_key(&gdi->ctx, NK_KEY_TEXT_START, down);
nk_input_key(&gdi->ctx, NK_KEY_SCROLL_START, down);
return 1;
case VK_END:
nk_input_key(&gdi->ctx, NK_KEY_TEXT_END, down);
nk_input_key(&gdi->ctx, NK_KEY_SCROLL_END, down);
return 1;
case VK_NEXT:
nk_input_key(&gdi->ctx, NK_KEY_SCROLL_DOWN, down);
return 1;
case VK_PRIOR:
nk_input_key(&gdi->ctx, NK_KEY_SCROLL_UP, down);
return 1;
case 'C':
if (ctrl) {
nk_input_key(&gdi->ctx, NK_KEY_COPY, down);
return 1;
}
break;
case 'V':
if (ctrl) {
nk_input_key(&gdi->ctx, NK_KEY_PASTE, down);
return 1;
}
break;
case 'X':
if (ctrl) {
nk_input_key(&gdi->ctx, NK_KEY_CUT, down);
return 1;
}
break;
case 'Z':
if (ctrl) {
nk_input_key(&gdi->ctx, NK_KEY_TEXT_UNDO, down);
return 1;
}
break;
case 'R':
if (ctrl) {
nk_input_key(&gdi->ctx, NK_KEY_TEXT_REDO, down);
return 1;
}
break;
}
return 0;
}
case WM_CHAR:
if (wparam >= 32)
{
nk_input_unicode(&gdi->ctx, (nk_rune)wparam);
return 1;
}
break;
case WM_LBUTTONDOWN:
nk_input_button(&gdi->ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_LBUTTONUP:
nk_input_button(&gdi->ctx, NK_BUTTON_DOUBLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
nk_input_button(&gdi->ctx, NK_BUTTON_LEFT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_RBUTTONDOWN:
nk_input_button(&gdi->ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_RBUTTONUP:
nk_input_button(&gdi->ctx, NK_BUTTON_RIGHT, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_MBUTTONDOWN:
nk_input_button(&gdi->ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
SetCapture(wnd);
return 1;
case WM_MBUTTONUP:
nk_input_button(&gdi->ctx, NK_BUTTON_MIDDLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 0);
ReleaseCapture();
return 1;
case WM_MOUSEWHEEL:
nk_input_scroll(&gdi->ctx, nk_vec2(0, (float)(short)HIWORD(wparam) / WHEEL_DELTA));
return 1;
case WM_MOUSEMOVE:
nk_input_motion(&gdi->ctx, (short)LOWORD(lparam), (short)HIWORD(lparam));
return 1;
case WM_LBUTTONDBLCLK:
nk_input_button(&gdi->ctx, NK_BUTTON_DOUBLE, (short)LOWORD(lparam), (short)HIWORD(lparam), 1);
return 1;
}
return 0;
}
NK_API void
nk_gdi_shutdown(nk_gdi_ctx gdi)
{
DeleteObject(gdi->memory_dc);
DeleteObject(gdi->bitmap);
nk_free(&gdi->ctx);
}
NK_API void
nk_gdi_render(nk_gdi_ctx gdi, struct nk_color clear)
{
const struct nk_command* cmd;
HDC memory_dc = gdi->memory_dc;
SelectObject(memory_dc, GetStockObject(DC_PEN));
SelectObject(memory_dc, GetStockObject(DC_BRUSH));
nk_gdi_clear(gdi, memory_dc, clear);
nk_foreach(cmd, &gdi->ctx)
{
switch (cmd->type) {
case NK_COMMAND_NOP: break;
case NK_COMMAND_SCISSOR: {
const struct nk_command_scissor* s = (const struct nk_command_scissor*)cmd;
nk_gdi_scissor(memory_dc, s->x, s->y, s->w, s->h);
} break;
case NK_COMMAND_LINE: {
const struct nk_command_line* l = (const struct nk_command_line*)cmd;
nk_gdi_stroke_line(memory_dc, l->begin.x, l->begin.y, l->end.x,
l->end.y, l->line_thickness, l->color);
} break;
case NK_COMMAND_RECT: {
const struct nk_command_rect* r = (const struct nk_command_rect*)cmd;
nk_gdi_stroke_rect(memory_dc, r->x, r->y, r->w, r->h,
(unsigned short)r->rounding, r->line_thickness, r->color);
} break;
case NK_COMMAND_RECT_FILLED: {
const struct nk_command_rect_filled* r = (const struct nk_command_rect_filled*)cmd;
nk_gdi_fill_rect(memory_dc, r->x, r->y, r->w, r->h,
(unsigned short)r->rounding, r->color);
} break;
case NK_COMMAND_CIRCLE: {
const struct nk_command_circle* c = (const struct nk_command_circle*)cmd;
nk_gdi_stroke_circle(memory_dc, c->x, c->y, c->w, c->h, c->line_thickness, c->color);
} break;
case NK_COMMAND_CIRCLE_FILLED: {
const struct nk_command_circle_filled* c = (const struct nk_command_circle_filled*)cmd;
nk_gdi_fill_circle(memory_dc, c->x, c->y, c->w, c->h, c->color);
} break;
case NK_COMMAND_TRIANGLE: {
const struct nk_command_triangle* t = (const struct nk_command_triangle*)cmd;
nk_gdi_stroke_triangle(memory_dc, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->line_thickness, t->color);
} break;
case NK_COMMAND_TRIANGLE_FILLED: {
const struct nk_command_triangle_filled* t = (const struct nk_command_triangle_filled*)cmd;
nk_gdi_fill_triangle(memory_dc, t->a.x, t->a.y, t->b.x, t->b.y,
t->c.x, t->c.y, t->color);
} break;
case NK_COMMAND_POLYGON: {
const struct nk_command_polygon* p = (const struct nk_command_polygon*)cmd;
nk_gdi_stroke_polygon(memory_dc, p->points, p->point_count, p->line_thickness, p->color);
} break;
case NK_COMMAND_POLYGON_FILLED: {
const struct nk_command_polygon_filled* p = (const struct nk_command_polygon_filled*)cmd;
nk_gdi_fill_polygon(memory_dc, p->points, p->point_count, p->color);
} break;
case NK_COMMAND_POLYLINE: {
const struct nk_command_polyline* p = (const struct nk_command_polyline*)cmd;
nk_gdi_stroke_polyline(memory_dc, p->points, p->point_count, p->line_thickness, p->color);
} break;
case NK_COMMAND_TEXT: {
const struct nk_command_text* t = (const struct nk_command_text*)cmd;
nk_gdi_draw_text(memory_dc, t->x, t->y, t->w, t->h,
(const char*)t->string, t->length,
(GdiFont*)t->font->userdata.ptr,
t->background, t->foreground);
} break;
case NK_COMMAND_CURVE: {
const struct nk_command_curve* q = (const struct nk_command_curve*)cmd;
nk_gdi_stroke_curve(memory_dc, q->begin, q->ctrl[0], q->ctrl[1],
q->end, q->line_thickness, q->color);
} break;
case NK_COMMAND_RECT_MULTI_COLOR: {
const struct nk_command_rect_multi_color* r = (const struct nk_command_rect_multi_color*)cmd;
nk_gdi_rect_multi_color(gdi, memory_dc, r->x, r->y, r->w, r->h, r->left, r->top, r->right, r->bottom);
} break;
case NK_COMMAND_IMAGE: {
const struct nk_command_image* i = (const struct nk_command_image*)cmd;
nk_gdi_draw_image(gdi, i->x, i->y, i->w, i->h, i->img, i->col);
} break;
case NK_COMMAND_ARC:
case NK_COMMAND_ARC_FILLED:
default: break;
}
}
nk_gdi_blit(gdi, gdi->window_dc);
nk_clear(&gdi->ctx);
}
#endif

387
demo/gdi_native_nuklear/window.h Normal file
View File

@ -0,0 +1,387 @@
#ifndef NK_GDI_WINDOW
#define NK_GDI_WINDOW
#define NK_GDI_WINDOW_CLS L"WNDCLS_NkGdi"
#include <windows.h>
/* Functin pointer types for window callbacks */
typedef int(*nkgdi_window_func_close)(void);
typedef int(*nkgdi_window_func_draw)(struct nk_context*);
/* Window container / context */
struct nkgdi_window
{
/* The window can be sized */
int allow_sizing;
/* The window can be maximized by double clicking the titlebar */
int allow_maximize;
/* The window is allowed to be moved by the user */
int allow_move;
/* The window will render it's title bar */
int has_titlebar;
/* Callbacks */
/* Called when the user or os requests a window close (return 1 to accept the reqest)*/
nkgdi_window_func_close cb_on_close;
/* Called each time the window content should be drawn. Here you will do your nuklear drawing code
* but WITHOUT nk_begin and nk_end. Return 1 to keep the window open.
*/
nkgdi_window_func_draw cb_on_draw;
/* Internal Data */
struct
{
/* Window handle */
HWND window_handle;
/* Nuklear & GDI context */
nk_gdi_ctx nk_gdi_ctx;
struct nk_context* nk_ctx;
/* GDI required objects */
GdiFont* gdi_font;
HDC window_dc;
/* Internally used state variables */
int is_open;
int is_draggin;
int ws_override;
int is_maximized;
POINT drag_offset;
int width;
int height;
}_internal;
};
/* API */
/* This function will init all resources used by the implementation */
void nkgdi_window_init(void);
/* This function will free all globally used resources */
void nkgdi_window_shutdown(void);
/* Creates a new window (for the wnd context) */
void nkgdi_window_create(struct nkgdi_window* wnd, unsigned int width, unsigned int height, const char* name, int posX, int posY);
/* Updates the window (Windows message loop, nuklear loop and drawing). Returns one as long as the window is valid and open */
int nkgdi_window_update(struct nkgdi_window* wnd);
/* Destroys the window context wnd */
void nkgdi_window_destroy(struct nkgdi_window* wnd);
#ifdef NKGDI_IMPLEMENT_WINDOW
/* Predeclare the windows window message procs */
/* This proc will setup the pointer to the window context */
LRESULT nkgdi_window_proc_setup(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam);
/* This proc will take the window context pointer and performs operations on it*/
LRESULT nkgdi_window_proc_run(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam);
void nkgdi_window_init(void)
{
/* Describe the window class */
WNDCLASSEXW cls;
cls.cbSize = sizeof(WNDCLASSEXW);
cls.style = CS_OWNDC | CS_DBLCLKS;
cls.lpfnWndProc = &nkgdi_window_proc_setup;
cls.cbClsExtra = 0;
cls.cbWndExtra = 0;
cls.hInstance = GetModuleHandle(NULL);
cls.hIcon = LoadIcon(NULL, IDI_APPLICATION);
cls.hCursor = LoadCursor(NULL, IDC_ARROW);
cls.hbrBackground = NULL;
cls.lpszMenuName = NULL;
cls.lpszClassName = NK_GDI_WINDOW_CLS;
cls.hIconSm = NULL;
/* Register the window class */
RegisterClassExW(&cls);
}
void nkgdi_window_shutdown(void)
{
/* Windows class no longer required, unregister it */
UnregisterClassW(NK_GDI_WINDOW_CLS, GetModuleHandle(NULL));
}
void nkgdi_window_create(struct nkgdi_window* wnd, unsigned int width, unsigned int height, const char* name, int posX, int posY)
{
DWORD styleEx = WS_EX_WINDOWEDGE;
DWORD style = WS_POPUP;
/* Adjust window size to fit selected window styles */
RECT cr;
cr.left = 0;
cr.top = 0;
cr.right = width;
cr.bottom = height;
AdjustWindowRectEx(&cr, style, FALSE, styleEx);
/* Create the new window */
wnd->_internal.window_handle = CreateWindowExW(
styleEx,
NK_GDI_WINDOW_CLS,
L"NkGdi",
style | WS_VISIBLE,
posX, posY,
cr.right - cr.left, cr.bottom - cr.top,
NULL, NULL,
GetModuleHandleW(NULL),
wnd
);
/* Give the window the ascii char name */
SetWindowTextA(wnd->_internal.window_handle, name);
/* Extract the window dc for gdi drawing */
wnd->_internal.window_dc = GetWindowDC(wnd->_internal.window_handle);
/* Create the gdi font required to draw text */
wnd->_internal.gdi_font = nk_gdifont_create("Arial", 16);
/* Init the gdi backend */
wnd->_internal.nk_ctx = nk_gdi_init(&wnd->_internal.nk_gdi_ctx, wnd->_internal.gdi_font, wnd->_internal.window_dc, width, height);
/* Bring all internal variables to a defined and valid initial state */
wnd->_internal.is_open = 1;
wnd->_internal.is_draggin = 0;
wnd->_internal.ws_override = 0;
wnd->_internal.is_maximized = 0;
wnd->_internal.drag_offset.x = 0;
wnd->_internal.drag_offset.y = 0;
wnd->_internal.width = width;
wnd->_internal.height = height;
}
void nkgdi_window_destroy(struct nkgdi_window* wnd)
{
/* Destroy all objects in reverse order */
if (wnd->_internal.nk_gdi_ctx)
{
nk_gdi_shutdown(wnd->_internal.nk_gdi_ctx);
}
if (wnd->_internal.gdi_font)
{
nk_gdifont_del(wnd->_internal.gdi_font);
}
if (wnd->_internal.window_dc)
{
ReleaseDC(wnd->_internal.window_handle, wnd->_internal.window_dc);
}
if (wnd->_internal.window_handle)
{
CloseWindow(wnd->_internal.window_handle);
DestroyWindow(wnd->_internal.window_handle);
}
}
int nkgdi_window_update(struct nkgdi_window* wnd)
{
/* The window will only be updated when it is open / valid */
if (wnd->_internal.is_open)
{
/* First all pending window events will be processed */
MSG msg;
nk_input_begin(wnd->_internal.nk_ctx);
while (PeekMessage(&msg, wnd->_internal.window_handle, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
nk_input_end(wnd->_internal.nk_ctx);
/* To setup the nuklear window we need the windows title */
char title[1024];
GetWindowTextA(wnd->_internal.window_handle, title, 1024);
/* The nk window flags are beeing create based on the context setup */
nk_flags window_flags = NK_WINDOW_BORDER;
if(wnd->has_titlebar)
window_flags |= NK_WINDOW_CLOSABLE | NK_WINDOW_TITLE;
if(!wnd->_internal.is_maximized && wnd->allow_sizing)
window_flags |= NK_WINDOW_SCALABLE;
/* Override the nuklear windows size when required */
if (wnd->_internal.ws_override)
nk_window_set_bounds(wnd->_internal.nk_ctx, title, nk_rect(0, 0, wnd->_internal.width, wnd->_internal.height));
/* Start the nuklear window */
if (nk_begin(wnd->_internal.nk_ctx, title, nk_rect(0, 0, wnd->_internal.width, wnd->_internal.height), window_flags))
{
/* Call user drawing callback */
if(wnd->cb_on_draw && !wnd->cb_on_draw(wnd->_internal.nk_ctx))
wnd->_internal.is_open = 0;
/* Update the windows window to reflect the nuklear windows size */
struct nk_rect bounds = nk_window_get_bounds(wnd->_internal.nk_ctx);
if(bounds.w != wnd->_internal.width || bounds.h != wnd->_internal.height)
SetWindowPos(wnd->_internal.window_handle, NULL, 0, 0, bounds.w, bounds.h, SWP_NOMOVE | SWP_NOOWNERZORDER);
}
else
{
/* Nuklear window was closed. Handle close internally */
if(!wnd->cb_on_close || wnd->cb_on_close())
wnd->_internal.is_open = 0;
}
nk_end(wnd->_internal.nk_ctx);
/* We no longer need the window size override flag to be set */
wnd->_internal.ws_override = 0;
/* Pass context to the nuklear gdi renderer */
nk_gdi_render(wnd->_internal.nk_gdi_ctx, nk_rgb(0, 0, 0));
}
return wnd->_internal.is_open;
}
LRESULT nkgdi_window_proc_setup(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
/* Waiting to receive the NCCREATE message with the custom window data */
if (msg == WM_NCCREATE)
{
/* Extracting the window context from message parameters */
CREATESTRUCT* ptrCr = (CREATESTRUCT*)lParam;
struct nkgdi_window* nkgdi_wnd = (struct nkgdi_window*)ptrCr->lpCreateParams;
/* Store the context in the window and redirect any further message to the run window proc*/
SetWindowLongPtr(wnd, GWLP_USERDATA, (LONG_PTR)nkgdi_wnd);
SetWindowLongPtr(wnd, GWLP_WNDPROC, (LONG_PTR)&nkgdi_window_proc_run);
/* Already call the run proc so that it gets the chance to handle NCCREATE as well */
return nkgdi_window_proc_run(wnd, msg, wParam, lParam);
}
/* Until we get WM_NCCREATE windows is going to handle the messages */
return DefWindowProc(wnd, msg, wParam, lParam);
}
LRESULT nkgdi_window_proc_run(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
/* The window context is extracted from the window data */
struct nkgdi_window* nkwnd = (struct nkgdi_window*)GetWindowLongPtrW(wnd, GWLP_USERDATA);
/* Switch on the message code to handle all required messages */
switch (msg)
{
/* Window close event */
case WM_CLOSE:
/* Call custom close callback */
if(!nkwnd->cb_on_close || nkwnd->cb_on_close())
nkwnd->_internal.is_open = 0;
return 0; /* No default behaviour. We do it our own way */
/* Window sizing event (is currently beeing sized) */
case WM_SIZING:
{
/* Size of the client / active are is extracted and stored */
RECT cr;
GetClientRect(wnd, &cr);
nkwnd->_internal.width = cr.right - cr.left;
nkwnd->_internal.height = cr.bottom - cr.top;
}
break;
/* Window size event (done sizing, maximize, minimize, ...) */
case WM_SIZE:
{
/* Window was maximized */
if (wParam == SIZE_MAXIMIZED)
{
/* Get the nearest monitor and retrive its details */
HMONITOR monitor = MonitorFromWindow(wnd, MONITOR_DEFAULTTOPRIMARY);
MONITORINFO monitorInfo;
monitorInfo.cbSize = sizeof(MONITORINFO);
if (GetMonitorInfoW(monitor, &monitorInfo))
{
/* Adjust the window size and position by the monitor working area (without taskbar) */
nkwnd->_internal.height = monitorInfo.rcWork.bottom - monitorInfo.rcWork.top;
nkwnd->_internal.width = monitorInfo.rcWork.right - monitorInfo.rcWork.left;
nkwnd->_internal.ws_override = 1; /* Sizing was done without nuklear beeing aware. So we need to override it */
nkwnd->_internal.is_maximized = 1;
SetWindowPos(wnd, NULL, 0, 0, nkwnd->_internal.width, nkwnd->_internal.height, SWP_NOMOVE | SWP_NOZORDER);
}
}
/* Window was restored (no longer maximized) */
else if (wParam == SIZE_RESTORED)
{
nkwnd->_internal.is_maximized = 0;
}
/* Always get the new bounds of the window */
RECT cr;
GetClientRect(wnd, &cr);
nkwnd->_internal.width = cr.right - cr.left;
nkwnd->_internal.height = cr.bottom - cr.top;
}
break;
/* Mouse started left click */
case WM_LBUTTONDOWN:
{
/* Handle dragging when allowed, has titlebar and mouse is in titlebar (Y <= 30) */
if (HIWORD(lParam) <= 30 && nkwnd->allow_move && nkwnd->has_titlebar)
{
/* Mark dragging internally and store mouse click offset */
nkwnd->_internal.is_draggin = 1;
nkwnd->_internal.drag_offset.x = LOWORD(lParam);
nkwnd->_internal.drag_offset.y = HIWORD(lParam);
}
}
break;
/* Mouse stoped left click */
case WM_LBUTTONUP:
/* No longer dragging the window */
nkwnd->_internal.is_draggin = 0;
break;
/* Mouse is moving on the window */
case WM_MOUSEMOVE:
{
/* When we are dragging and are not maximized process dragging */
if (nkwnd->_internal.is_draggin && !nkwnd->_internal.is_maximized)
{
/* Get the current global position of the mouse */
POINT cursorPos;
GetCursorPos(&cursorPos);
/* Substract the internal offset */
cursorPos.x -= nkwnd->_internal.drag_offset.x;
cursorPos.y -= nkwnd->_internal.drag_offset.y;
/* Update position of out window and make sure window is in a movable state (= Restored) */
ShowWindow(wnd, SW_RESTORE);
SetWindowPos(wnd, NULL, cursorPos.x, cursorPos.y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
}
}
break;
/* Mouse double clicked */
case WM_LBUTTONDBLCLK:
{
/* Will only affect window when on the titlebar */
if (HIWORD(lParam) <= 30 && nkwnd->allow_maximize && nkwnd->has_titlebar)
{
/* When the window is already maximized restore it */
if (nkwnd->_internal.is_maximized)
{
ShowWindow(wnd, SW_RESTORE);
}
/* Else we gonna do maximize it*/
else
{
ShowWindow(wnd, SW_MAXIMIZE);
}
/* We overrideed the window size, make sure to affect the nk window as well */
nkwnd->_internal.ws_override = 1;
}
}
break;
}
/* Allow nuklear to handle the message as well */
if (nkwnd->_internal.nk_gdi_ctx && nk_gdi_handle_event(nkwnd->_internal.nk_gdi_ctx, wnd, msg, wParam, lParam))
return 0;
/* In case we reach this line our code and nuklear did not respond to the message. Allow windows to handle it s*/
return DefWindowProc(wnd, msg, wParam, lParam);
}
#endif
#endif

39
demo/x11/nuklear_xlib.h
View File

@ -385,15 +385,12 @@ nk_xsurf_stroke_curve(XSurface *surf, struct nk_vec2i p1,
}
NK_INTERN void
nk_xsurf_draw_text(XSurface *surf, short x, short y, unsigned short w, unsigned short h,
const char *text, int len, XFont *font, struct nk_color cbg, struct nk_color cfg)
nk_xsurf_draw_text(XSurface *surf, short x, short y, const char *text, int len,
XFont *font, struct nk_color cfg)
{
int tx, ty;
unsigned long bg = nk_color_from_byte(&cbg.r);
unsigned long fg = nk_color_from_byte(&cfg.r);
XSetForeground(surf->dpy, surf->gc, bg);
XFillRectangle(surf->dpy, surf->drawable, surf->gc, (int)x, (int)y, (unsigned)w, (unsigned)h);
if(!text || !font || !len) return;
tx = (int)x;
@ -413,10 +410,10 @@ nk_stbi_image_to_xsurf(unsigned char *data, int width, int height, int channels)
int bpl = channels;
long i, isize = width*height*channels;
XImageWithAlpha *aimage = (XImageWithAlpha*)calloc( 1, sizeof(XImageWithAlpha) );
int depth = DefaultDepth(surf->dpy, surf->screen);
int depth = DefaultDepth(surf->dpy, surf->screen);
if (data == NULL) return nk_image_id(0);
if (aimage == NULL) return nk_image_id(0);
switch (depth){
case 24:
bpl = 4;
@ -429,7 +426,7 @@ nk_stbi_image_to_xsurf(unsigned char *data, int width, int height, int channels)
bpl = 1;
break;
}
/* rgba to bgra */
if (channels >= 3){
for (i=0; i < isize; i += channels) {
@ -441,9 +438,9 @@ nk_stbi_image_to_xsurf(unsigned char *data, int width, int height, int channels)
}
if (channels == 4){
const unsigned alpha_treshold = 127;
const unsigned alpha_treshold = 127;
aimage->clipMask = XCreatePixmap(surf->dpy, surf->drawable, width, height, 1);
if( aimage->clipMask ){
aimage->clipMaskGC = XCreateGC(surf->dpy, aimage->clipMask, 0, 0);
XSetForeground(surf->dpy, aimage->clipMaskGC, BlackPixel(surf->dpy, surf->screen));
@ -460,13 +457,13 @@ nk_stbi_image_to_xsurf(unsigned char *data, int width, int height, int channels)
}
}
}
aimage->ximage = XCreateImage(surf->dpy,
CopyFromParent, depth,
ZPixmap, 0,
(char*)data,
width, height,
bpl*8, bpl * width);
aimage->ximage = XCreateImage(surf->dpy,
CopyFromParent, depth,
ZPixmap, 0,
(char*)data,
width, height,
bpl*8, bpl * width);
img = nk_image_ptr( (void*)aimage);
img.h = height;
img.w = width;
@ -503,7 +500,7 @@ nk_xsurf_draw_image(XSurface *surf, short x, short y, unsigned short w, unsigned
if (aimage){
if (aimage->clipMask){
XSetClipMask(surf->dpy, surf->gc, aimage->clipMask);
XSetClipOrigin(surf->dpy, surf->gc, x, y);
XSetClipOrigin(surf->dpy, surf->gc, x, y);
}
XPutImage(surf->dpy, surf->drawable, surf->gc, aimage->ximage, 0, 0, x, y, w, h);
XSetClipMask(surf->dpy, surf->gc, None);
@ -939,10 +936,8 @@ nk_xlib_render(Drawable screen, struct nk_color clear)
} break;
case NK_COMMAND_TEXT: {
const struct nk_command_text *t = (const struct nk_command_text*)cmd;
nk_xsurf_draw_text(surf, t->x, t->y, t->w, t->h,
(const char*)t->string, t->length,
(XFont*)t->font->userdata.ptr,
t->background, t->foreground);
nk_xsurf_draw_text(surf, t->x, t->y, (const char*)t->string, t->length,
(XFont*)t->font->userdata.ptr, t->foreground);
} break;
case NK_COMMAND_CURVE: {
const struct nk_command_curve *q = (const struct nk_command_curve *)cmd;

13
demo/x11_xft/nuklear_xlib.h
View File

@ -417,8 +417,8 @@ nk_xsurf_stroke_curve(XSurface *surf, struct nk_vec2i p1,
}
NK_INTERN void
nk_xsurf_draw_text(XSurface *surf, short x, short y, unsigned short w, unsigned short h,
const char *text, int len, XFont *font, struct nk_color cbg, struct nk_color cfg)
nk_xsurf_draw_text(XSurface *surf, short x, short y, const char *text, int len,
XFont *font, struct nk_color cfg)
{
#ifdef NK_XLIB_USE_XFT
XRenderColor xrc;
@ -426,11 +426,8 @@ nk_xsurf_draw_text(XSurface *surf, short x, short y, unsigned short w, unsigned
#else
unsigned long fg = nk_color_from_byte(&cfg.r);
#endif
unsigned long bg = nk_color_from_byte(&cbg.r);
int tx, ty;
XSetForeground(surf->dpy, surf->gc, bg);
XFillRectangle(surf->dpy, surf->drawable, surf->gc, (int)x, (int)y, (unsigned)w, (unsigned)h);
if(!text || !font || !len) return;
tx = (int)x;
@ -1024,10 +1021,8 @@ nk_xlib_render(Drawable screen, struct nk_color clear)
} break;
case NK_COMMAND_TEXT: {
const struct nk_command_text *t = (const struct nk_command_text*)cmd;
nk_xsurf_draw_text(surf, t->x, t->y, t->w, t->h,
(const char*)t->string, t->length,
(XFont*)t->font->userdata.ptr,
t->background, t->foreground);
nk_xsurf_draw_text(surf, t->x, t->y, (const char*)t->string, t->length,
(XFont*)t->font->userdata.ptr, t->foreground);
} break;
case NK_COMMAND_CURVE: {
const struct nk_command_curve *q = (const struct nk_command_curve *)cmd;