Merge pull request #102 from mmozeiko/gdi
Demo with Win32 GDI rendering
This commit is contained in:
Micha Mettke
commit
87efb61a9f
2
.gitignore
vendored
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2
.gitignore
vendored
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@ -0,0 +1,2 @@
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demo/gdi/*.exe
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demo/gdi/*.obj
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6
demo/gdi/build.bat
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6
demo/gdi/build.bat
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@ -0,0 +1,6 @@
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@echo off
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rem This will use VS2015 for compiler
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call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
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cl /nologo /W3 /WX /O2 /fp:fast /Gm- /Fedemo.exe main.c user32.lib gdi32.lib /link /incremental:no
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130
demo/gdi/main.c
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130
demo/gdi/main.c
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@ -0,0 +1,130 @@
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/* nuklear - v1.00 - public domain */
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <stdio.h>
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#include <string.h>
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#define WINDOW_WIDTH 800
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#define WINDOW_HEIGHT 600
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#define NK_INCLUDE_FIXED_TYPES
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#define NK_INCLUDE_DEFAULT_ALLOCATOR
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#include "nuklear_gdi.h"
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#include "nuklear_gdi.c"
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static LRESULT CALLBACK
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WindowProc(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
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{
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switch (msg)
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{
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case WM_DESTROY:
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PostQuitMessage(0);
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return 0;
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}
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if (nk_gdi_handle_event(wnd, msg, wparam, lparam))
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return 0;
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return DefWindowProcW(wnd, msg, wparam, lparam);
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}
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int main(void)
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{
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GdiFont* font;
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struct nk_context *ctx;
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WNDCLASSW wc;
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ATOM atom;
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RECT rect = { 0, 0, WINDOW_WIDTH, WINDOW_HEIGHT };
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DWORD style = WS_OVERLAPPEDWINDOW;
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DWORD exstyle = WS_EX_APPWINDOW;
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HWND wnd;
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HDC dc;
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int running = 1;
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int needs_refresh = 1;
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/* Win32 */
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memset(&wc, 0, sizeof(wc));
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wc.lpfnWndProc = WindowProc;
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wc.hInstance = GetModuleHandleW(0);
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wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
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wc.hCursor = LoadCursor(NULL, IDC_ARROW);
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wc.lpszClassName = L"NuklearWindowClass";
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atom = RegisterClassW(&wc);
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AdjustWindowRectEx(&rect, style, FALSE, exstyle);
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wnd = CreateWindowExW(exstyle, wc.lpszClassName, L"Nuklear Demo",
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style | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT,
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rect.right - rect.left, rect.bottom - rect.top,
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NULL, NULL, wc.hInstance, NULL);
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dc = GetDC(wnd);
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/* GUI */
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font = nk_gdifont_create("Arial", 14);
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ctx = nk_gdi_init(font, dc, WINDOW_WIDTH, WINDOW_HEIGHT);
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while (running)
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{
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MSG msg;
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/* Input */
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nk_input_begin(ctx);
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if (needs_refresh == 0)
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{
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if (GetMessageW(&msg, NULL, 0, 0) <= 0)
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{
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running = 0;
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}
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else
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{
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TranslateMessage(&msg);
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DispatchMessageW(&msg);
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}
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needs_refresh = 1;
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}
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else
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{
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needs_refresh = 0;
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}
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while (PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE))
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{
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if (msg.message == WM_QUIT)
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running = 0;
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TranslateMessage(&msg);
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DispatchMessageW(&msg);
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needs_refresh = 1;
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}
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nk_input_end(ctx);
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/* GUI */
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{struct nk_panel layout;
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if (nk_begin(ctx, &layout, "Demo", nk_rect(50, 50, 200, 200),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
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NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
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{
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enum {EASY, HARD};
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static int op = EASY;
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static int property = 20;
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nk_layout_row_static(ctx, 30, 80, 1);
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if (nk_button_label(ctx, "button", NK_BUTTON_DEFAULT))
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fprintf(stdout, "button pressed\n");
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nk_layout_row_dynamic(ctx, 30, 2);
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if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
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if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
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nk_layout_row_dynamic(ctx, 22, 1);
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nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
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}
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nk_end(ctx);}
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if (nk_window_is_closed(ctx, "Demo")) break;
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/* Draw */
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nk_gdi_render(nk_rgb(30,30,30));
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}
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nk_gdifont_del(font);
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ReleaseDC(wnd, dc);
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UnregisterClassW(wc.lpszClassName, wc.hInstance);
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return 0;
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}
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714
demo/gdi/nuklear_gdi.c
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714
demo/gdi/nuklear_gdi.c
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@ -0,0 +1,714 @@
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#include <stdlib.h>
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <malloc.h>
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#define NK_IMPLEMENTATION
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#include "nuklear_gdi.h"
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#include "../../nuklear.h"
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struct GdiFont {
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int height;
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HFONT handle;
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HDC dc;
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};
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static struct {
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HBITMAP bitmap;
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HDC window_dc;
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HDC memory_dc;
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unsigned int width;
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unsigned int height;
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struct nk_context ctx;
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} gdi;
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static COLORREF convert_color(struct nk_color c)
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{
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return c.r | (c.g << 8) | (c.b << 16);
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}
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static void
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nk_gdi_scissor(HDC dc, float x, float y, float w, float h)
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{
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SelectClipRgn(dc, NULL);
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IntersectClipRect(dc, (int)x, (int)y, (int)(x + w + 1), (int)(y + h + 1));
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}
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static void
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nk_gdi_stroke_line(HDC dc, short x0, short y0, short x1,
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short y1, unsigned int line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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} else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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MoveToEx(dc, x0, y0, NULL);
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LineTo(dc, x1, y1);
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_stroke_rect(HDC dc, short x, short y, unsigned short w,
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unsigned short h, unsigned short r, unsigned short line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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} else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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SetDCBrushColor(dc, OPAQUE);
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if (r == 0) {
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Rectangle(dc, x, y, x + w, y + h);
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} else {
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RoundRect(dc, x, y, x + w, y + h, r, r);
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}
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_fill_rect(HDC dc, short x, short y, unsigned short w,
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unsigned short h, unsigned short r, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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if (r == 0) {
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RECT rect = { x, y, x + w, y + h };
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SetBkColor(dc, color);
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ExtTextOutW(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
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} else {
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SetDCPenColor(dc, color);
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SetDCBrushColor(dc, color);
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RoundRect(dc, x, y, x + w, y + h, r, r);
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}
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}
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static void
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nk_gdi_fill_triangle(HDC dc, short x0, short y0, short x1,
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short y1, short x2, short y2, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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POINT points[] = {
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{ x0, y0 },
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{ x1, y1 },
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{ x2, y2 },
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};
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SetDCPenColor(dc, color);
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SetDCBrushColor(dc, color);
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Polygon(dc, points, 3);
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}
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static void
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nk_gdi_stroke_triangle(HDC dc, short x0, short y0, short x1,
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short y1, short x2, short y2, unsigned short line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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POINT points[] = {
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{ x0, y0 },
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{ x1, y1 },
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{ x2, y2 },
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{ x0, y0 },
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};
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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} else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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Polyline(dc, points, 4);
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_fill_polygon(HDC dc, const struct nk_vec2i *pnts, int count, struct nk_color col)
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{
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int i = 0;
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#define MAX_POINTS 64
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POINT points[MAX_POINTS];
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COLORREF color = convert_color(col);
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SetDCBrushColor(dc, color);
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SetDCPenColor(dc, color);
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for (i = 0; i < count && i < MAX_POINTS; ++i) {
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points[i].x = pnts[i].x;
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points[i].y = pnts[i].y;
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}
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Polygon(dc, points, i);
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#undef MAX_POINTS
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}
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static void
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nk_gdi_stroke_polygon(HDC dc, const struct nk_vec2i *pnts, int count,
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unsigned short line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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} else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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if (count > 0) {
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int i;
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MoveToEx(dc, pnts[0].x, pnts[0].y, NULL);
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for (i = 1; i < count; ++i)
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LineTo(dc, pnts[i].x, pnts[i].y);
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LineTo(dc, pnts[0].x, pnts[0].y);
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}
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_stroke_polyline(HDC dc, const struct nk_vec2i *pnts,
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int count, unsigned short line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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} else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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if (count > 0) {
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int i;
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MoveToEx(dc, pnts[0].x, pnts[0].y, NULL);
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for (i = 1; i < count; ++i)
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LineTo(dc, pnts[i].x, pnts[i].y);
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}
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_fill_circle(HDC dc, short x, short y, unsigned short w,
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unsigned short h, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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SetDCBrushColor(dc, color);
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SetDCPenColor(dc, color);
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Ellipse(dc, x, y, x + w, y + h);
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}
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static void
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nk_gdi_stroke_circle(HDC dc, short x, short y, unsigned short w,
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unsigned short h, unsigned short line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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} else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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SetDCBrushColor(dc, OPAQUE);
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Ellipse(dc, x, y, x + w, y + h);
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_stroke_curve(HDC dc, struct nk_vec2i p1,
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struct nk_vec2i p2, struct nk_vec2i p3, struct nk_vec2i p4,
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unsigned short line_thickness, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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POINT p[] = {
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{ p1.x, p1.y },
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{ p2.x, p2.y },
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{ p3.x, p3.y },
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{ p4.x, p4.y },
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};
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HPEN pen = NULL;
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if (line_thickness == 1) {
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SetDCPenColor(dc, color);
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}
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else {
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pen = CreatePen(PS_SOLID, line_thickness, color);
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SelectObject(dc, pen);
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}
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SetDCBrushColor(dc, OPAQUE);
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PolyBezier(dc, p, 4);
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if (pen) {
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SelectObject(dc, GetStockObject(DC_PEN));
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DeleteObject(pen);
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}
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}
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static void
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nk_gdi_draw_text(HDC dc, short x, short y, unsigned short w, unsigned short h,
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const char *text, int len, GdiFont *font, struct nk_color cbg, struct nk_color cfg)
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{
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int wsize;
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WCHAR* wstr;
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if(!text || !font || !len) return;
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wsize = MultiByteToWideChar(CP_UTF8, 0, text, len, NULL, 0);
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wstr = _alloca(wsize * sizeof(wchar_t));
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MultiByteToWideChar(CP_UTF8, 0, text, len, wstr, wsize);
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SetBkColor(dc, convert_color(cbg));
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SetTextColor(dc, convert_color(cfg));
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SelectObject(dc, font->handle);
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ExtTextOutW(dc, x, y, ETO_OPAQUE, NULL, wstr, wsize, NULL);
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}
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static void
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nk_gdi_clear(HDC dc, struct nk_color col)
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{
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COLORREF color = convert_color(col);
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RECT rect = { 0, 0, gdi.width, gdi.height };
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SetBkColor(dc, color);
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ExtTextOutW(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
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}
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static void
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nk_gdi_blit(HDC dc)
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{
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BitBlt(dc, 0, 0, gdi.width, gdi.height, gdi.memory_dc, 0, 0, SRCCOPY);
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}
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GdiFont*
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nk_gdifont_create(const char *name, int size)
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{
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TEXTMETRICW metric;
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GdiFont *font = (GdiFont*)calloc(1, sizeof(GdiFont));
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||||
if (!font)
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return NULL;
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||||
font->dc = CreateCompatibleDC(0);
|
||||
font->handle = CreateFont(size, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY, DEFAULT_PITCH | FF_DONTCARE, name);
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SelectObject(font->dc, font->handle);
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||||
GetTextMetricsW(font->dc, &metric);
|
||||
font->height = metric.tmHeight;
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return font;
|
||||
}
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||||
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||||
static float
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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 = _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_clipbard_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 = 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_clipbard_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 = GlobalAlloc(GMEM_MOVEABLE, (wsize + 1) * sizeof(wchar_t));
|
||||
if (mem)
|
||||
{
|
||||
wchar_t* wstr = 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(GdiFont *gdifont, HDC window_dc, unsigned int width, unsigned int height)
|
||||
{
|
||||
struct nk_user_font font;
|
||||
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_clipbard_copy;
|
||||
gdi.ctx.clip.paste = nk_gdi_clipbard_paste;
|
||||
return &gdi.ctx;
|
||||
}
|
||||
|
||||
NK_API void
|
||||
nk_gdi_set_font(GdiFont *gdifont)
|
||||
{
|
||||
struct nk_user_font font;
|
||||
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(HWND wnd, UINT msg, WPARAM wparam, LPARAM lparam)
|
||||
{
|
||||
switch (msg)
|
||||
{
|
||||
case WM_SIZE:
|
||||
{
|
||||
unsigned width = LOWORD(lparam);
|
||||
unsigned height = LOWORD(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(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);
|
||||
return 1;
|
||||
|
||||
case VK_END:
|
||||
nk_input_key(&gdi.ctx, NK_KEY_TEXT_END, 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_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, (float)(short)HIWORD(wparam) / WHEEL_DELTA);
|
||||
return 1;
|
||||
|
||||
case WM_MOUSEMOVE:
|
||||
nk_input_motion(&gdi.ctx, (short)LOWORD(lparam), (short)HIWORD(lparam));
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
NK_API void
|
||||
nk_gdi_shutdown(void)
|
||||
{
|
||||
DeleteObject(gdi.memory_dc);
|
||||
DeleteObject(gdi.bitmap);
|
||||
nk_free(&gdi.ctx);
|
||||
}
|
||||
|
||||
NK_API void
|
||||
nk_gdi_render(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(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:
|
||||
case NK_COMMAND_IMAGE:
|
||||
case NK_COMMAND_ARC:
|
||||
case NK_COMMAND_ARC_FILLED:
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
nk_gdi_blit(gdi.window_dc);
|
||||
nk_clear(&gdi.ctx);
|
||||
}
|
||||
18
demo/gdi/nuklear_gdi.h
Normal file
18
demo/gdi/nuklear_gdi.h
Normal file
@ -0,0 +1,18 @@
|
||||
#ifndef NK_GDI_H_
|
||||
#define NK_GDI_H_
|
||||
|
||||
#include "../../nuklear.h"
|
||||
|
||||
typedef struct GdiFont GdiFont;
|
||||
|
||||
NK_API struct nk_context* nk_gdi_init(GdiFont *font, HDC window_dc, unsigned int width, unsigned int height);
|
||||
NK_API void nk_gdi_set_font(GdiFont *font);
|
||||
NK_API int nk_gdi_handle_event(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
|
||||
NK_API void nk_gdi_render(struct nk_color clear);
|
||||
NK_API void nk_gdi_shutdown(void);
|
||||
|
||||
/* font */
|
||||
NK_API GdiFont* nk_gdifont_create(const char *name, int size);
|
||||
NK_API void nk_gdifont_del(GdiFont *font);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user