programs/clock/winclock.c

   1 /*
   2  *  Clock (winclock.c)
   3  *
   4  *  Copyright 1998 by Marcel Baur <mbaur@g26.ethz.ch>
   5  *
   6  *  This file is based on  rolex.c  by Jim Peterson.
   7  *
   8  *  I just managed to move the relevant parts into the Clock application
   9  *  and made it look like the original Windows one. You can find the original
  10  *  rolex.c in the wine /libtest directory.
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  25  */
  26 #include "config.h"
  27 #include "wine/port.h"
  28
  29 #include <math.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include "windows.h"
  33 #include "winclock.h"
  34
  35 #define Black  RGB(0,0,0)
  36 #define Gray   RGB(128,128,128)
  37 #define LtGray RGB(192,192,192)
  38 #define White  RGB(255,255,255)
  39
  40 static const COLORREF FaceColor = LtGray;
  41 static const COLORREF HandColor = White;
  42 static const COLORREF TickColor = White;
  43 static const COLORREF ShadowColor = Black;
  44 static const COLORREF BackgroundColor = LtGray;
  45
  46 static const int SHADOW_DEPTH = 2;
  47
  48 typedef struct
  49 {
  50     POINT Start;
  51     POINT End;
  52 } HandData;
  53
  54 HandData HourHand, MinuteHand, SecondHand;
  55
  56 static void DrawTicks(HDC dc, const POINT* centre, int radius)
  57 {
  58     int t;
  59
  60     /* Minute divisions */
  61     if (radius>64)
  62         for(t=0; t<60; t++) {
  63             MoveToEx(dc,
  64                      centre->x + sin(t*M_PI/30)*0.9*radius,
  65                      centre->y - cos(t*M_PI/30)*0.9*radius,
  66                      NULL);
  67             LineTo(dc,
  68                    centre->x + sin(t*M_PI/30)*0.89*radius,
  69                    centre->y - cos(t*M_PI/30)*0.89*radius);
  70         }
  71
  72     /* Hour divisions */
  73     for(t=0; t<12; t++) {
  74
  75         MoveToEx(dc,
  76                  centre->x + sin(t*M_PI/6)*0.9*radius,
  77                  centre->y - cos(t*M_PI/6)*0.9*radius,
  78                  NULL);
  79         LineTo(dc,
  80                centre->x + sin(t*M_PI/6)*0.8*radius,
  81                centre->y - cos(t*M_PI/6)*0.8*radius);
  82     }
  83 }
  84
  85 static void DrawFace(HDC dc, const POINT* centre, int radius, int border)
  86 {
  87     /* Ticks */
  88     SelectObject(dc, CreatePen(PS_SOLID, 2, ShadowColor));
  89     OffsetWindowOrgEx(dc, -SHADOW_DEPTH, -SHADOW_DEPTH, NULL);
  90     DrawTicks(dc, centre, radius);
  91     DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 2, TickColor)));
  92     OffsetWindowOrgEx(dc, SHADOW_DEPTH, SHADOW_DEPTH, NULL);
  93     DrawTicks(dc, centre, radius);
  94     if (border)
  95     {
  96         SelectObject(dc, GetStockObject(NULL_BRUSH));
  97         DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 5, ShadowColor)));
  98         Ellipse(dc, centre->x - radius, centre->y - radius, centre->x + radius, centre->y + radius);
  99     }
 100     DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
 101 }
 102
 103 static void DrawHand(HDC dc,HandData* hand)
 104 {
 105     MoveToEx(dc, hand->Start.x, hand->Start.y, NULL);
 106     LineTo(dc, hand->End.x, hand->End.y);
 107 }
 108
 109 static void DrawHands(HDC dc, BOOL bSeconds)
 110 {
 111     if (bSeconds) {
 112 #if 0
 113         SelectObject(dc, CreatePen(PS_SOLID, 1, ShadowColor));
 114         OffsetWindowOrgEx(dc, -SHADOW_DEPTH, -SHADOW_DEPTH, NULL);
 115         DrawHand(dc, &SecondHand);
 116         DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 1, HandColor)));
 117         OffsetWindowOrgEx(dc, SHADOW_DEPTH, SHADOW_DEPTH, NULL);
 118 #else
 119         SelectObject(dc, CreatePen(PS_SOLID, 1, HandColor));
 120 #endif
 121         DrawHand(dc, &SecondHand);
 122         DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
 123     }
 124
 125     SelectObject(dc, CreatePen(PS_SOLID, 4, ShadowColor));
 126
 127     OffsetWindowOrgEx(dc, -SHADOW_DEPTH, -SHADOW_DEPTH, NULL);
 128     DrawHand(dc, &MinuteHand);
 129     DrawHand(dc, &HourHand);
 130
 131     DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 4, HandColor)));
 132     OffsetWindowOrgEx(dc, SHADOW_DEPTH, SHADOW_DEPTH, NULL);
 133     DrawHand(dc, &MinuteHand);
 134     DrawHand(dc, &HourHand);
 135
 136     DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
 137 }
 138
 139 static void PositionHand(const POINT* centre, double length, double angle, HandData* hand)
 140 {
 141     hand->Start = *centre;
 142     hand->End.x = centre->x + sin(angle)*length;
 143     hand->End.y = centre->y - cos(angle)*length;
 144 }
 145
 146 static void PositionHands(const POINT* centre, int radius, BOOL bSeconds)
 147 {
 148     SYSTEMTIME st;
 149     double hour, minute, second;
 150
 151     /* 0 <= hour,minute,second < 2pi */
 152     /* Adding the millisecond count makes the second hand move more smoothly */
 153
 154     GetLocalTime(&st);
 155
 156     second = st.wSecond + st.wMilliseconds/1000.0;
 157     minute = st.wMinute + second/60.0;
 158     hour   = st.wHour % 12 + minute/60.0;
 159
 160     PositionHand(centre, radius * 0.5,  hour/12   * 2*M_PI, &HourHand);
 161     PositionHand(centre, radius * 0.65, minute/60 * 2*M_PI, &MinuteHand);
 162     if (bSeconds)
 163         PositionHand(centre, radius * 0.79, second/60 * 2*M_PI, &SecondHand);
 164 }
 165
 166 void AnalogClock(HDC dc, int x, int y, BOOL bSeconds, BOOL border)
 167 {
 168     POINT centre;
 169     int radius;
 170
 171     radius = min(x, y)/2 - SHADOW_DEPTH;
 172     if (radius < 0)
 173         return;
 174
 175     centre.x = x/2;
 176     centre.y = y/2;
 177
 178     DrawFace(dc, &centre, radius, border);
 179
 180     PositionHands(&centre, radius, bSeconds);
 181     DrawHands(dc, bSeconds);
 182 }
 183
 184
 185 HFONT SizeFont(HDC dc, int x, int y, BOOL bSeconds, const LOGFONT* font)
 186 {
 187     SIZE extent;
 188     LOGFONT lf;
 189     double xscale, yscale;
 190     HFONT oldFont, newFont;
 191     CHAR szTime[255];
 192     int chars;
 193
 194     chars = GetTimeFormat(LOCALE_USER_DEFAULT, bSeconds ? 0 : TIME_NOSECONDS, NULL,
 195                           NULL, szTime, sizeof (szTime));
 196     if (!chars)
 197         return 0;
 198
 199     --chars;
 200
 201     lf = *font;
 202     lf.lfHeight = -20;
 203
 204     x -= 2 * SHADOW_DEPTH;
 205     y -= 2 * SHADOW_DEPTH;
 206
 207     oldFont = SelectObject(dc, CreateFontIndirect(&lf));
 208     GetTextExtentPoint(dc, szTime, chars, &extent);
 209     DeleteObject(SelectObject(dc, oldFont));
 210
 211     xscale = (double)x/extent.cx;
 212     yscale = (double)y/extent.cy;
 213     lf.lfHeight *= min(xscale, yscale);
 214     newFont = CreateFontIndirect(&lf);
 215
 216     return newFont;
 217 }
 218
 219 void DigitalClock(HDC dc, int x, int y, BOOL bSeconds, HFONT font)
 220 {
 221     SIZE extent;
 222     HFONT oldFont;
 223     CHAR szTime[255];
 224     int chars;
 225
 226     chars = GetTimeFormat(LOCALE_USER_DEFAULT, bSeconds ? 0 : TIME_NOSECONDS, NULL,
 227                   NULL, szTime, sizeof (szTime));
 228     if (!chars)
 229         return;
 230     --chars;
 231
 232     oldFont = SelectObject(dc, font);
 233     GetTextExtentPoint(dc, szTime, chars, &extent);
 234
 235     SetBkColor(dc, BackgroundColor);
 236     SetTextColor(dc, ShadowColor);
 237     TextOut(dc, (x - extent.cx)/2 + SHADOW_DEPTH, (y - extent.cy)/2 + SHADOW_DEPTH,
 238             szTime, chars);
 239     SetBkMode(dc, TRANSPARENT);
 240
 241     SetTextColor(dc, HandColor);
 242     TextOut(dc, (x - extent.cx)/2, (y - extent.cy)/2, szTime, chars);
 243
 244     SelectObject(dc, oldFont);
 245 }