2015-04-29 16:56:46 +03:00
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/*
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Copyright (c) 2015
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vurtun <polygone@gmx.net>
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MIT licence
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*/
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2015-04-28 16:32:44 +03:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <windows.h>
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#include <windowsx.h>
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2015-05-19 19:49:24 +03:00
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#include <assert.h>
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#include <string.h>
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2015-04-28 16:32:44 +03:00
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/* macros */
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2015-06-03 01:58:57 +03:00
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#define DTIME 16
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2015-04-28 16:32:44 +03:00
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#define CLAMP(i,v,x) (MAX(MIN(v,x), i))
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#define LEN(a) (sizeof(a)/sizeof(a)[0])
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#define UNUSED(a) ((void)(a))
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2015-06-03 01:58:57 +03:00
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#define GUI_IMPLEMENTATION
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#include "../tiny_gui.h"
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2015-05-12 15:14:36 +03:00
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#include "demo.c"
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2015-04-28 16:32:44 +03:00
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/* Types */
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typedef struct XFont {
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HFONT handle;
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int height;
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2015-04-29 16:56:46 +03:00
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int ascent;
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int descent;
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2015-04-28 16:32:44 +03:00
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} XFont;
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typedef struct XSurface {
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int save;
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HDC hdc;
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HBITMAP bitmap;
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HRGN region;
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unsigned int width;
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unsigned int height;
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} XSurface;
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typedef struct XWindow {
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HINSTANCE hInstance;
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WNDCLASS wc;
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HWND hWnd;
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HDC hdc;
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RECT rect;
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XSurface *backbuffer;
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XFont *font;
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2015-04-29 16:56:46 +03:00
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unsigned int width;
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unsigned int height;
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2015-04-28 16:32:44 +03:00
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} XWindow;
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static int running = 1;
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2015-04-29 16:56:46 +03:00
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static int quit = 0;
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static XWindow xw;
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2015-04-28 16:32:44 +03:00
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static void
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die(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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2015-05-23 14:47:06 +03:00
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fputs("\n", stderr);
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2015-04-28 16:32:44 +03:00
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exit(EXIT_FAILURE);
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}
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static long long
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timestamp(LARGE_INTEGER freq)
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{
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LARGE_INTEGER now;
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QueryPerformanceCounter(&now);
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return (1000LL * now.QuadPart) / freq.QuadPart;
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}
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static XFont*
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2015-04-29 16:56:46 +03:00
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font_new(HDC hdc, const char *name, int height)
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2015-04-28 16:32:44 +03:00
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{
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2015-04-29 16:56:46 +03:00
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HFONT old;
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TEXTMETRIC metrics;
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2015-04-28 16:32:44 +03:00
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XFont *font = malloc(sizeof(XFont));
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2015-05-12 15:14:36 +03:00
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if (!font) return NULL;
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2015-04-28 16:32:44 +03:00
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font->height = height;
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font->handle = CreateFont(height, 0, 0, 0, 0, FALSE, FALSE, FALSE,
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2015-05-02 16:41:11 +03:00
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ANSI_CHARSET, OUT_CHARACTER_PRECIS, CLIP_CHARACTER_PRECIS,
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ANTIALIASED_QUALITY, DEFAULT_PITCH, name);
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2015-04-29 16:56:46 +03:00
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old = SelectObject(hdc, font->handle);
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GetTextMetrics(hdc, &metrics);
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font->ascent = metrics.tmAscent;
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font->descent = metrics.tmDescent;
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SelectObject(hdc, old);
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2015-04-28 16:32:44 +03:00
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return font;
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}
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gui_size
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2015-05-31 15:46:02 +03:00
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font_get_text_width(gui_handle handle, const gui_char *text, gui_size len)
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2015-04-28 16:32:44 +03:00
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{
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SIZE size;
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HFONT old;
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2015-05-31 15:46:02 +03:00
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XWindow *win = handle.ptr;
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2015-04-28 16:32:44 +03:00
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XFont *font = win->font;
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XSurface *surf = win->backbuffer;
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if (!font ||!text || !len) return 0;
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old = SelectObject(surf->hdc, font->handle);
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GetTextExtentPoint32(surf->hdc, (LPCTSTR)text, len, &size);
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SelectObject(surf->hdc, old);
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return size.cx;
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}
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static void
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font_del(XFont *font)
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{
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if (font->handle)
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2015-05-12 18:01:02 +03:00
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DeleteObject(font->handle);
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2015-04-28 16:32:44 +03:00
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free(font);
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}
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static XSurface*
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surface_new(HDC hdc, unsigned int width, unsigned int height)
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{
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XSurface *surf = malloc(sizeof(XSurface));
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2015-05-12 15:14:36 +03:00
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if (!surf) return NULL;
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2015-04-28 16:32:44 +03:00
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surf->hdc = CreateCompatibleDC(hdc);
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surf->bitmap = CreateCompatibleBitmap(hdc, width, height);
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surf->width = width;
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surf->height = height;
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surf->region = NULL;
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return surf;
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}
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static void
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surface_resize(XSurface *surf, HDC hdc, unsigned int width, unsigned int height)
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{
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DeleteObject(surf->bitmap);
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surf->bitmap = CreateCompatibleBitmap(hdc, width, height);
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surf->width = width;
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surf->height = height;
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}
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static void
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surface_del(XSurface *surf)
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{
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if (surf->region) DeleteObject(surf->region);
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DeleteDC(surf->hdc);
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DeleteObject(surf->bitmap);
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free(surf);
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}
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static void
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surface_scissor(XSurface *surf, short x, short y, unsigned short w, unsigned short h)
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{
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if (surf->region) DeleteObject(surf->region);
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surf->region = CreateRectRgn(x, y, x + w, y + h);
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SelectClipRgn(surf->hdc, surf->region);
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}
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static void
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surface_draw_line(XSurface *surf, short x0, short y0, short x1, short y1,
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unsigned char r, unsigned char g, unsigned char b)
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{
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HPEN hPen;
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HPEN old;
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hPen = CreatePen(PS_SOLID, 1, RGB(r,g,b));
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old = SelectObject(surf->hdc, hPen);
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MoveToEx(surf->hdc, x0, y0, NULL);
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LineTo(surf->hdc, x1, y1);
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SelectObject(surf->hdc, old);
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DeleteObject(hPen);
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}
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static void
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surface_draw_rect(XSurface *surf, short x, short y, unsigned short w, unsigned short h,
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unsigned char r, unsigned char g, unsigned char b)
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{
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HBRUSH hBrush;
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HBRUSH old;
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RECT rect;
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rect.left = (LONG)x;
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rect.top = (LONG)y;
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rect.right = (LONG)(x + w);
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rect.bottom = (LONG)(y + h);
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hBrush = CreateSolidBrush(RGB(r,g,b));
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old = SelectObject(surf->hdc, hBrush);
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FillRect(surf->hdc, &rect, hBrush);
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SelectObject(surf->hdc, old);
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DeleteObject(hBrush);
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}
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static void
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surface_draw_circle(XSurface *surf, short x, short y, unsigned short w, unsigned short h,
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unsigned char r, unsigned char g, unsigned char b)
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{
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HBRUSH hBrush;
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HBRUSH old;
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hBrush = CreateSolidBrush(RGB(r,g,b));
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old = SelectObject(surf->hdc, hBrush);
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Ellipse(surf->hdc, x, y, (x + w), (y + h));
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SelectObject(surf->hdc, old);
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DeleteObject(hBrush);
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}
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static void
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surface_draw_triangle(XSurface *surf, short x0, short y0, short x1, short y1,
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short x2, short y2, unsigned char r, unsigned char g, unsigned char b)
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{
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HBRUSH old;
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HBRUSH hBrush;
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POINT pnt[3];
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pnt[0].x = (LONG)x0;
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pnt[0].y = (LONG)y0;
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pnt[1].x = (LONG)x1;
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pnt[1].y = (LONG)y1;
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pnt[2].x = (LONG)x2;
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pnt[2].y = (LONG)y2;
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hBrush = CreateSolidBrush(RGB(r,g,b));
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old = SelectObject(surf->hdc, hBrush);
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Polygon(surf->hdc, pnt, 3);
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SelectObject(surf->hdc, old);
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DeleteObject(hBrush);
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}
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static void
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surface_draw_text(XSurface *surf, XFont *font, short x, short y, unsigned short w, unsigned short h,
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const char *text, unsigned int len,
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unsigned char bg_r, unsigned char bg_g, unsigned char bg_b,
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unsigned char fg_r, unsigned char fg_g, unsigned char fg_b)
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{
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RECT format;
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UINT bg = RGB(bg_r, bg_g, bg_b);
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UINT fg = RGB(fg_r, fg_g, fg_b);
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HFONT old = SelectObject(surf->hdc, font->handle);
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2015-04-29 16:56:46 +03:00
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2015-04-28 16:32:44 +03:00
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format.left = x;
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format.top = y;
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format.right = x + w;
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format.bottom = y + h;
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SetBkColor(surf->hdc, bg);
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SetTextColor(surf->hdc, fg);
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SetBkMode(surf->hdc, OPAQUE);
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2015-05-12 15:14:36 +03:00
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DrawText(surf->hdc, text, len, &format, DT_LEFT|DT_SINGLELINE|DT_VCENTER);
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2015-04-28 16:32:44 +03:00
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SelectObject(surf->hdc, old);
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}
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static void
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surface_clear(XSurface *surf, unsigned char r, unsigned char g, unsigned char b)
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{surface_draw_rect(surf, 0, 0, (unsigned short)surf->width, (unsigned short)surf->height, r, g, b);}
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static void
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surface_begin(XSurface *surf)
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{
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surf->save = SaveDC(surf->hdc);
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SelectObject(surf->hdc, surf->bitmap);
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}
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static void
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surface_end(XSurface *surf, HDC hdc)
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{
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BitBlt(hdc, 0, 0, surf->width, surf->height, surf->hdc, 0, 0, SRCCOPY);
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RestoreDC(hdc, surf->save);
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}
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static void
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2015-05-29 16:28:08 +03:00
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execute(XSurface *surf, gui_command_buffer *buffer)
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2015-04-28 16:32:44 +03:00
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{
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2015-05-04 12:03:15 +03:00
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const struct gui_command *cmd;
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2015-05-29 16:28:08 +03:00
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gui_foreach_command(cmd, buffer) {
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2015-04-28 16:32:44 +03:00
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switch (cmd->type) {
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case GUI_COMMAND_NOP: break;
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case GUI_COMMAND_SCISSOR: {
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2015-05-29 16:28:08 +03:00
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const struct gui_command_scissor *s = gui_command(scissor, cmd);
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2015-04-28 16:32:44 +03:00
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surface_scissor(surf, s->x, s->y, s->w, s->h);
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} break;
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case GUI_COMMAND_LINE: {
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2015-05-29 16:28:08 +03:00
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const struct gui_command_line *l = gui_command(line, cmd);
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2015-04-28 16:32:44 +03:00
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surface_draw_line(surf, l->begin[0], l->begin[1], l->end[0],
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l->end[1], l->color.r, l->color.g, l->color.b);
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} break;
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case GUI_COMMAND_RECT: {
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2015-05-29 16:28:08 +03:00
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const struct gui_command_rect *r = gui_command(rect, cmd);
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2015-04-28 16:32:44 +03:00
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surface_draw_rect(surf, r->x, r->y, r->w, r->h,
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2015-05-02 16:41:11 +03:00
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r->color.r, r->color.g, r->color.b);
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2015-04-28 16:32:44 +03:00
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} break;
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case GUI_COMMAND_CIRCLE: {
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2015-05-29 16:28:08 +03:00
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const struct gui_command_circle *c = gui_command(circle, cmd);
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2015-04-28 16:32:44 +03:00
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surface_draw_circle(surf, c->x, c->y, c->w, c->h,
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2015-05-02 16:41:11 +03:00
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c->color.r, c->color.g, c->color.b);
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2015-04-28 16:32:44 +03:00
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} break;
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case GUI_COMMAND_TRIANGLE: {
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2015-05-29 16:28:08 +03:00
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const struct gui_command_triangle *t = gui_command(triangle, cmd);
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2015-04-28 16:32:44 +03:00
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surface_draw_triangle(surf, t->a[0], t->a[1], t->b[0], t->b[1],
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t->c[0], t->c[1], t->color.r, t->color.g, t->color.b);
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} break;
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case GUI_COMMAND_TEXT: {
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2015-05-29 16:28:08 +03:00
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const struct gui_command_text *t = gui_command(text, cmd);
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2015-06-02 14:59:04 +03:00
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XWindow *win = t->font.ptr;
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surface_draw_text(surf, win->font, t->x, t->y, t->w, t->h, (const char*)t->string,
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2015-04-28 16:32:44 +03:00
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t->length, t->bg.r, t->bg.g, t->bg.b, t->fg.r, t->fg.g, t->fg.b);
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} break;
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2015-05-21 23:10:07 +03:00
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case GUI_COMMAND_IMAGE:
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2015-04-28 16:32:44 +03:00
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default: break;
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}
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}
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}
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static void
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2015-05-29 16:28:08 +03:00
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draw(XSurface *surf, struct gui_stack *stack)
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2015-04-28 16:32:44 +03:00
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{
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2015-05-29 16:28:08 +03:00
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struct gui_panel *iter;
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gui_foreach_panel(iter, stack)
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execute(surf, iter->buffer);
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2015-04-28 16:32:44 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
key(struct gui_input *in, MSG *msg, gui_bool down)
|
|
|
|
{
|
|
|
|
if (msg->lParam == VK_CONTROL)
|
|
|
|
gui_input_key(in, GUI_KEY_CTRL, down);
|
|
|
|
else if (msg->lParam == VK_SHIFT)
|
|
|
|
gui_input_key(in, GUI_KEY_SHIFT, down);
|
|
|
|
else if (msg->lParam == VK_DELETE)
|
|
|
|
gui_input_key(in, GUI_KEY_DEL, down);
|
|
|
|
else if (msg->lParam == VK_RETURN)
|
|
|
|
gui_input_key(in, GUI_KEY_ENTER, down);
|
|
|
|
else if (msg->lParam == VK_SPACE)
|
|
|
|
gui_input_key(in, GUI_KEY_SPACE, down);
|
|
|
|
else if (msg->lParam == VK_BACK)
|
|
|
|
gui_input_key(in, GUI_KEY_BACKSPACE, down);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
text(struct gui_input *in, MSG *msg)
|
|
|
|
{
|
|
|
|
gui_glyph glyph;
|
|
|
|
if (msg->wParam < 32 && msg->wParam >= 128) return;
|
|
|
|
glyph[0] = (gui_char)msg->wParam;
|
|
|
|
gui_input_char(in, glyph);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
motion(struct gui_input *in, MSG *msg)
|
|
|
|
{
|
|
|
|
const gui_int x = GET_X_LPARAM(msg->lParam);
|
|
|
|
const gui_int y = GET_Y_LPARAM(msg->lParam);
|
|
|
|
gui_input_motion(in, x, y);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
btn(struct gui_input *in, MSG *msg, gui_bool down)
|
|
|
|
{
|
|
|
|
const gui_int x = GET_X_LPARAM(msg->lParam);
|
|
|
|
const gui_int y = GET_Y_LPARAM(msg->lParam);
|
|
|
|
gui_input_button(in, x, y, down);
|
|
|
|
}
|
|
|
|
|
|
|
|
LRESULT CALLBACK
|
|
|
|
wnd_proc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
|
|
|
{
|
|
|
|
switch (msg) {
|
2015-05-02 16:41:11 +03:00
|
|
|
case WM_DESTROY:
|
|
|
|
PostQuitMessage(WM_QUIT);
|
|
|
|
running = 0;
|
|
|
|
quit = 1;
|
|
|
|
break;
|
|
|
|
case WM_SIZE:
|
|
|
|
if (xw.backbuffer) {
|
|
|
|
xw.width = LOWORD(lParam);
|
|
|
|
xw.height = HIWORD(lParam);
|
|
|
|
surface_resize(xw.backbuffer, xw.hdc, xw.width, xw.height);
|
|
|
|
} break;
|
|
|
|
default:
|
|
|
|
return DefWindowProc(hWnd, msg, wParam, lParam);
|
2015-04-28 16:32:44 +03:00
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
INT WINAPI
|
2015-05-12 15:14:36 +03:00
|
|
|
WinMain(HINSTANCE hInstance, HINSTANCE prev, LPSTR lpCmdLine, int shown)
|
2015-04-28 16:32:44 +03:00
|
|
|
{
|
|
|
|
LARGE_INTEGER freq;
|
|
|
|
long long start;
|
|
|
|
long long dt;
|
|
|
|
|
|
|
|
/* GUI */
|
|
|
|
struct gui_input in;
|
|
|
|
struct gui_font font;
|
2015-05-13 15:47:11 +03:00
|
|
|
struct demo_gui gui;
|
2015-04-28 16:32:44 +03:00
|
|
|
|
|
|
|
/* Window */
|
2015-04-29 16:56:46 +03:00
|
|
|
QueryPerformanceFrequency(&freq);
|
2015-04-28 16:32:44 +03:00
|
|
|
xw.wc.style = CS_HREDRAW|CS_VREDRAW;
|
|
|
|
xw.wc.lpfnWndProc = wnd_proc;
|
|
|
|
xw.wc.hInstance = hInstance;
|
|
|
|
xw.wc.lpszClassName = "GUI";
|
|
|
|
RegisterClass(&xw.wc);
|
|
|
|
xw.hWnd = CreateWindowEx(
|
2015-05-02 16:41:11 +03:00
|
|
|
0, xw.wc.lpszClassName, "Demo",
|
2015-05-19 19:49:24 +03:00
|
|
|
WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX|WS_MAXIMIZEBOX|WS_VISIBLE,
|
2015-05-02 16:41:11 +03:00
|
|
|
CW_USEDEFAULT, CW_USEDEFAULT,
|
2015-05-19 19:49:24 +03:00
|
|
|
WINDOW_WIDTH, WINDOW_HEIGHT,
|
2015-05-02 16:41:11 +03:00
|
|
|
0, 0, hInstance, 0);
|
2015-04-28 16:32:44 +03:00
|
|
|
|
|
|
|
xw.hdc = GetDC(xw.hWnd);
|
|
|
|
GetClientRect(xw.hWnd, &xw.rect);
|
|
|
|
xw.backbuffer = surface_new(xw.hdc, xw.rect.right, xw.rect.bottom);
|
2015-04-29 16:56:46 +03:00
|
|
|
xw.font = font_new(xw.hdc, "Times New Roman", 14);
|
|
|
|
xw.width = xw.rect.right;
|
|
|
|
xw.height = xw.rect.bottom;
|
2015-04-28 16:32:44 +03:00
|
|
|
|
|
|
|
/* GUI */
|
|
|
|
memset(&in, 0, sizeof in);
|
2015-05-13 15:47:11 +03:00
|
|
|
memset(&gui, 0, sizeof gui);
|
2015-05-31 15:46:02 +03:00
|
|
|
font.userdata.ptr = &xw;
|
2015-04-28 16:32:44 +03:00
|
|
|
font.height = (gui_float)xw.font->height;
|
|
|
|
font.width = font_get_text_width;
|
2015-05-19 19:49:24 +03:00
|
|
|
gui.running = gui_true;
|
2015-05-29 16:28:08 +03:00
|
|
|
gui.memory = malloc(MAX_MEMORY);
|
2015-05-13 15:47:11 +03:00
|
|
|
init_demo(&gui, &font);
|
2015-04-28 16:32:44 +03:00
|
|
|
|
2015-05-19 19:49:24 +03:00
|
|
|
while (gui.running && !quit) {
|
2015-04-28 16:32:44 +03:00
|
|
|
/* Input */
|
2015-05-02 16:41:11 +03:00
|
|
|
MSG msg;
|
|
|
|
start = timestamp(freq);
|
2015-04-28 16:32:44 +03:00
|
|
|
gui_input_begin(&in);
|
2015-05-02 16:41:11 +03:00
|
|
|
while (PeekMessage(&msg, xw.hWnd, 0, 0, PM_REMOVE)) {
|
|
|
|
if (msg.message == WM_KEYDOWN) key(&in, &msg, gui_true);
|
|
|
|
else if (msg.message == WM_KEYUP) key(&in, &msg, gui_false);
|
|
|
|
else if (msg.message == WM_LBUTTONDOWN) btn(&in, &msg, gui_true);
|
|
|
|
else if (msg.message == WM_LBUTTONUP) btn(&in, &msg, gui_false);
|
|
|
|
else if (msg.message == WM_MOUSEMOVE) motion(&in, &msg);
|
|
|
|
else if (msg.message == WM_CHAR) text(&in, &msg);
|
2015-04-28 16:32:44 +03:00
|
|
|
TranslateMessage(&msg);
|
2015-05-02 16:41:11 +03:00
|
|
|
DispatchMessage(&msg);
|
|
|
|
}
|
2015-04-28 16:32:44 +03:00
|
|
|
gui_input_end(&in);
|
|
|
|
|
2015-05-02 16:41:11 +03:00
|
|
|
/* GUI */
|
2015-05-19 19:49:24 +03:00
|
|
|
run_demo(&gui, &in);
|
2015-04-28 16:32:44 +03:00
|
|
|
|
2015-05-02 16:41:11 +03:00
|
|
|
/* Draw */
|
|
|
|
surface_begin(xw.backbuffer);
|
2015-05-19 19:49:24 +03:00
|
|
|
surface_clear(xw.backbuffer, 100, 100, 100);
|
2015-05-21 23:10:07 +03:00
|
|
|
draw(xw.backbuffer, &gui.stack);
|
2015-05-02 16:41:11 +03:00
|
|
|
surface_end(xw.backbuffer, xw.hdc);
|
2015-04-28 16:32:44 +03:00
|
|
|
|
|
|
|
/* Timing */
|
2015-05-02 16:41:11 +03:00
|
|
|
dt = timestamp(freq) - start;
|
|
|
|
if (dt < DTIME) Sleep(DTIME - dt);
|
2015-04-28 16:32:44 +03:00
|
|
|
}
|
|
|
|
|
2015-05-29 16:28:08 +03:00
|
|
|
free(gui.memory);
|
2015-04-28 16:32:44 +03:00
|
|
|
font_del(xw.font);
|
|
|
|
surface_del(xw.backbuffer);
|
|
|
|
ReleaseDC(xw.hWnd, xw.hdc);
|
|
|
|
return 0;
|
|
|
|
}
|
2015-06-03 01:58:57 +03:00
|
|
|
|