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)
  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
  95     DeleteObject(SelectObject(dc, GetStockObject(NULL_BRUSH)));
  96     DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
  97 }
  98
  99 static void DrawHand(HDC dc,HandData* hand)
 100 {
 101     MoveToEx(dc, hand->Start.x, hand->Start.y, NULL);
 102     LineTo(dc, hand->End.x, hand->End.y);
 103 }
 104
 105 static void DrawHands(HDC dc, BOOL bSeconds)
 106 {
 107     if (bSeconds) {
 108 #if 0
 109         SelectObject(dc, CreatePen(PS_SOLID, 1, ShadowColor));
 110         OffsetWindowOrgEx(dc, -SHADOW_DEPTH, -SHADOW_DEPTH, NULL);
 111         DrawHand(dc, &SecondHand);
 112         DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 1, HandColor)));
 113         OffsetWindowOrgEx(dc, SHADOW_DEPTH, SHADOW_DEPTH, NULL);
 114 #else
 115         SelectObject(dc, CreatePen(PS_SOLID, 1, HandColor));
 116 #endif
 117         DrawHand(dc, &SecondHand);
 118         DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
 119     }
 120
 121     SelectObject(dc, CreatePen(PS_SOLID, 4, ShadowColor));
 122
 123     OffsetWindowOrgEx(dc, -SHADOW_DEPTH, -SHADOW_DEPTH, NULL);
 124     DrawHand(dc, &MinuteHand);
 125     DrawHand(dc, &HourHand);
 126
 127     DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 4, HandColor)));
 128     OffsetWindowOrgEx(dc, SHADOW_DEPTH, SHADOW_DEPTH, NULL);
 129     DrawHand(dc, &MinuteHand);
 130     DrawHand(dc, &HourHand);
 131
 132     DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
 133 }
 134
 135 static void PositionHand(const POINT* centre, double length, double angle, HandData* hand)
 136 {
 137     hand->Start = *centre;
 138     hand->End.x = centre->x + sin(angle)*length;
 139     hand->End.y = centre->y - cos(angle)*length;
 140 }
 141
 142 static void PositionHands(const POINT* centre, int radius, BOOL bSeconds)
 143 {
 144     SYSTEMTIME st;
 145     double hour, minute, second;
 146
 147     /* 0 <= hour,minute,second < 2pi */
 148     /* Adding the millisecond count makes the second hand move more smoothly */
 149
 150     GetLocalTime(&st);
 151
 152     second = st.wSecond + st.wMilliseconds/1000.0;
 153     minute = st.wMinute + second/60.0;
 154     hour   = st.wHour % 12 + minute/60.0;
 155
 156     PositionHand(centre, radius * 0.5,  hour/12   * 2*M_PI, &HourHand);
 157     PositionHand(centre, radius * 0.65, minute/60 * 2*M_PI, &MinuteHand);
 158     if (bSeconds)
 159         PositionHand(centre, radius * 0.79, second/60 * 2*M_PI, &SecondHand);
 160 }
 161
 162 void AnalogClock(HDC dc, int x, int y, BOOL bSeconds)
 163 {
 164     POINT centre;
 165     int radius;
 166
 167     radius = min(x, y)/2 - SHADOW_DEPTH;
 168     if (radius < 0)
 169         return;
 170
 171     centre.x = x/2;
 172     centre.y = y/2;
 173
 174     DrawFace(dc, &centre, radius);
 175
 176     PositionHands(&centre, radius, bSeconds);
 177     DrawHands(dc, bSeconds);
 178 }
 179
 180
 181 HFONT SizeFont(HDC dc, int x, int y, BOOL bSeconds, const LOGFONT* font)
 182 {
 183     SIZE extent;
 184     LOGFONT lf;
 185     double xscale, yscale;
 186     HFONT oldFont, newFont;
 187     CHAR szTime[255];
 188     int chars;
 189
 190     chars = GetTimeFormat(LOCALE_USER_DEFAULT, bSeconds ? 0 : TIME_NOSECONDS, NULL,
 191                           NULL, szTime, sizeof (szTime));
 192     if (!chars)
 193         return 0;
 194
 195     --chars;
 196
 197     lf = *font;
 198     lf.lfHeight = -20;
 199
 200     x -= 2 * SHADOW_DEPTH;
 201     y -= 2 * SHADOW_DEPTH;
 202
 203     oldFont = SelectObject(dc, CreateFontIndirect(&lf));
 204     GetTextExtentPoint(dc, szTime, chars, &extent);
 205     DeleteObject(SelectObject(dc, oldFont));
 206
 207     xscale = (double)x/extent.cx;
 208     yscale = (double)y/extent.cy;
 209     lf.lfHeight *= min(xscale, yscale);
 210     newFont = CreateFontIndirect(&lf);
 211
 212     return newFont;
 213 }
 214
 215 void DigitalClock(HDC dc, int x, int y, BOOL bSeconds, HFONT font)
 216 {
 217     SIZE extent;
 218     HFONT oldFont;
 219     CHAR szTime[255];
 220     int chars;
 221
 222     chars = GetTimeFormat(LOCALE_USER_DEFAULT, bSeconds ? 0 : TIME_NOSECONDS, NULL,
 223                   NULL, szTime, sizeof (szTime));
 224     if (!chars)
 225         return;
 226     --chars;
 227
 228     oldFont = SelectObject(dc, font);
 229     GetTextExtentPoint(dc, szTime, chars, &extent);
 230
 231     SetBkColor(dc, BackgroundColor);
 232     SetTextColor(dc, ShadowColor);
 233     TextOut(dc, (x - extent.cx)/2 + SHADOW_DEPTH, (y - extent.cy)/2 + SHADOW_DEPTH,
 234             szTime, chars);
 235     SetBkMode(dc, TRANSPARENT);
 236
 237     SetTextColor(dc, HandColor);
 238     TextOut(dc, (x - extent.cx)/2, (y - extent.cy)/2, szTime, chars);
 239
 240     SelectObject(dc, oldFont);
 241 }