diff --git a/demo/gdi_native_nuklear/build.bat b/demo/gdi_native_nuklear/build.bat new file mode 100644 index 0000000..2f87f8e --- /dev/null +++ b/demo/gdi_native_nuklear/build.bat @@ -0,0 +1,6 @@ +@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 diff --git a/demo/gdi_native_nuklear/main.c b/demo/gdi_native_nuklear/main.c new file mode 100644 index 0000000..d12f972 --- /dev/null +++ b/demo/gdi_native_nuklear/main.c @@ -0,0 +1,128 @@ +#include + +#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; +} diff --git a/demo/gdi_native_nuklear/nuklear_gdi.h b/demo/gdi_native_nuklear/nuklear_gdi.h new file mode 100644 index 0000000..5c2f1f8 --- /dev/null +++ b/demo/gdi_native_nuklear/nuklear_gdi.h @@ -0,0 +1,937 @@ +/* + * 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 +#include + +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 diff --git a/demo/gdi_native_nuklear/window.h b/demo/gdi_native_nuklear/window.h new file mode 100644 index 0000000..f78d574 --- /dev/null +++ b/demo/gdi_native_nuklear/window.h @@ -0,0 +1,387 @@ +#ifndef NK_GDI_WINDOW +#define NK_GDI_WINDOW + +#define NK_GDI_WINDOW_CLS L"WNDCLS_NkGdi" + +#include + +/* 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 diff --git a/demo/x11/nuklear_xlib.h b/demo/x11/nuklear_xlib.h index 772ac56..0d71dee 100644 --- a/demo/x11/nuklear_xlib.h +++ b/demo/x11/nuklear_xlib.h @@ -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; diff --git a/demo/x11_xft/nuklear_xlib.h b/demo/x11_xft/nuklear_xlib.h index 7fbcd47..5728e8f 100644 --- a/demo/x11_xft/nuklear_xlib.h +++ b/demo/x11_xft/nuklear_xlib.h @@ -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;