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- Remove Idle(). 

- Fix repainting artefacts by drawing only through WM_PAINT.
- Unify hand drawing functions.
- 0 & 6 ticks are now always vertical.
This commit is contained in:
Richard Cohen 2003-07-15 20:43:57 +00:00 committed by Alexandre Julliard
parent ca3ac8f155
commit 76fdbf038b
3 changed files with 85 additions and 213 deletions
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24
programs/clock/main.c
View File

@ -26,12 +26,14 @@
#include "config.h"
#include <stdio.h>
#include "windows.h"
#include "commdlg.h"
#include "main.h"
#include "license.h"
#include "language.h"
#include "winclock.h"
#include "commdlg.h"
#define INITIAL_WINDOW_SIZE 200
#define TIMER_ID 1
@ -176,14 +178,10 @@ LRESULT WINAPI CLOCK_WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
HDC context;
context = BeginPaint(hWnd, &ps);
if(Globals.bAnalog) {
DrawFace(context);
Idle(context);
}
if(Globals.bAnalog)
AnalogClock(context, Globals.MaxX, Globals.MaxY);
else
{
/* do nothing */
}
DigitalClock(context, Globals.MaxX, Globals.MaxY);
EndPaint(hWnd, &ps);
break;
}
@ -191,9 +189,6 @@ LRESULT WINAPI CLOCK_WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_SIZE: {
Globals.MaxX = LOWORD(lParam);
Globals.MaxY = HIWORD(lParam);
OldHour.DontRedraw = TRUE;
OldMinute.DontRedraw = TRUE;
OldSecond.DontRedraw = TRUE;
break;
}
@ -203,8 +198,11 @@ LRESULT WINAPI CLOCK_WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
}
case WM_TIMER: {
Idle(0);
break;
/* Could just invalidate the changed hands,
* but it doesn't really seem worth the effort
*/
InvalidateRect(Globals.hMainWnd, NULL, FALSE);
break;
}
case WM_DESTROY: {

251
programs/clock/winclock.c
View File

@ -27,231 +27,124 @@
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "winclock.h"
#include "windows.h"
#include "main.h"
#include "winnls.h"
#include "winclock.h"
#define MIN(a,b) (((a)<(b))?(a):(b))
COLORREF FaceColor = RGB(192,192,192);
COLORREF HandColor = RGB(0,0,0);
COLORREF EtchColor = RGB(0,0,0);
float Pi=3.1415926;
int nLastSecond = 60;
HandData OldSecond,OldHour,OldMinute;
int MiddleX(void)
typedef struct
{
int X, diff;
POINT Start;
POINT End;
} HandData;
X = (Globals.MaxX/2);
diff = (Globals.MaxX-Globals.MaxY);
if (diff>0) { X = (X-(diff/2)); }
return X;
}
HandData HourHand, MinuteHand, SecondHand;
int MiddleY(void)
static void DrawFace(HDC dc, const POINT* centre, int radius)
{
int Y, diff;
Y = (Globals.MaxY/2);
diff = (Globals.MaxX-Globals.MaxY);
if (diff<0) { Y = Y+(diff/2); }
return Y;
}
void DrawFace(HDC dc)
{
int MidX, MidY, t, DiffX, DiffY;
MidX = MiddleX();
MidY = MiddleY();
DiffX = (Globals.MaxX-MidX*2)/2;
DiffY = (Globals.MaxY-MidY*2)/2;
int t;
SelectObject(dc,CreateSolidBrush(FaceColor));
SelectObject(dc,CreatePen(PS_SOLID,1,EtchColor));
Ellipse(dc,DiffX,DiffY,2*MidX+DiffX,2*MidY+DiffY);
Ellipse(dc,
centre->x - radius, centre->y - radius,
centre->x + radius, centre->y + radius);
for(t=0; t<12; t++)
{
MoveToEx(dc,(MidX+DiffX)+sin(t*Pi/6)*0.9*MidX,(MidY+DiffY)-cos(t*Pi/6)*0.9*MidY,NULL);
LineTo(dc,(MidY+DiffX)+sin(t*Pi/6)*0.8*MidX,(MidY+DiffY)-cos(t*Pi/6)*0.8*MidY);
for(t=0; t<12; t++) {
MoveToEx(dc,
centre->x + sin(t*M_PI/6)*0.9*radius,
centre->y - cos(t*M_PI/6)*0.9*radius,
NULL);
LineTo(dc,
centre->x + sin(t*M_PI/6)*0.8*radius,
centre->y - cos(t*M_PI/6)*0.8*radius);
}
if(Globals.MaxX>64 && Globals.MaxY>64)
if (radius>64)
for(t=0; t<60; t++)
SetPixel(dc,(MidX+DiffX)+sin(t*Pi/30)*0.9*MidX,(MidY+DiffY)-cos(t*Pi/30)*0.9*MidY
,EtchColor);
SetPixel(dc,
centre->x + sin(t*M_PI/30)*0.9*radius,
centre->y - cos(t*M_PI/30)*0.9*radius,
EtchColor);
DeleteObject(SelectObject(dc,GetStockObject(NULL_BRUSH)));
DeleteObject(SelectObject(dc,GetStockObject(NULL_PEN)));
memset(&OldSecond,0,sizeof(OldSecond));
memset(&OldMinute,0,sizeof(OldMinute));
memset(&OldHour,0,sizeof(OldHour));
}
void DrawHourHand(HDC dc)
static void DrawHand(HDC dc,HandData* hand)
{
if (OldHour.DontRedraw) return;
MoveToEx(dc, OldHour.StartX, OldHour.StartY, NULL);
LineTo(dc, OldHour.EndX, OldHour.EndY);
MoveToEx(dc, hand->Start.x, hand->Start.y, NULL);
LineTo(dc, hand->End.x, hand->End.y);
}
void DrawMinuteHand(HDC dc)
static void DrawHands(HDC dc)
{
if (OldMinute.DontRedraw) return;
MoveToEx(dc, OldMinute.StartX, OldMinute.StartY, NULL);
LineTo(dc, OldMinute.EndX, OldMinute.EndY);
SelectObject(dc,CreatePen(PS_SOLID,1,HandColor));
DrawHand(dc, &SecondHand);
DrawHand(dc, &MinuteHand);
DrawHand(dc, &HourHand);
DeleteObject(SelectObject(dc,GetStockObject(NULL_PEN)));
}
void DrawSecondHand(HDC dc)
static void PositionHand(const POINT* centre, double length, double angle, HandData* hand)
{
if (OldSecond.DontRedraw) return;
MoveToEx(dc, OldSecond.StartX, OldSecond.StartY, NULL);
LineTo(dc, OldSecond.EndX, OldSecond.EndY);
hand->Start = *centre;
hand->End.x = centre->x + sin(angle)*length;
hand->End.y = centre->y - cos(angle)*length;
}
BOOL UpdateHourHand(HDC dc,int MidX,int MidY,int XExt,int YExt,WORD Pos)
static void PositionHands(const POINT* centre, int radius)
{
int Sx, Sy, Ex, Ey;
BOOL rv;
rv = FALSE;
Sx = MidX; Sy = MidY;
Ex = MidX+sin(Pos*Pi/6000)*XExt;
Ey = MidY-cos(Pos*Pi/6000)*YExt;
rv = ( Sx!=OldHour.StartX || Ex!=OldHour.EndX ||
Sy!=OldHour.StartY || Ey!=OldHour.EndY );
if (Globals.bAnalog && rv)DrawHourHand(dc);
OldHour.StartX = Sx; OldHour.EndX = Ex;
OldHour.StartY = Sy; OldHour.EndY = Ey;
OldHour.DontRedraw=FALSE;
return rv;
SYSTEMTIME st;
double hour, minute, second;
/* 0 <= hour,minute,second < 2pi */
/* Adding the millisecond count makes the second hand move more smoothly */
GetLocalTime(&st);
second = st.wSecond + st.wMilliseconds/1000.0;
minute = st.wMinute + second/60.0;
hour = st.wHour % 12 + minute/60.0;
PositionHand(centre, radius * 0.5, hour/12 * 2*M_PI, &HourHand);
PositionHand(centre, radius * 0.65, minute/60 * 2*M_PI, &MinuteHand);
PositionHand(centre, radius * 0.79, second/60 * 2*M_PI, &SecondHand);
}
BOOL UpdateMinuteHand(HDC dc,int MidX,int MidY,int XExt,int YExt,WORD Pos)
void AnalogClock(HDC dc, int x, int y)
{
int Sx, Sy, Ex, Ey;
BOOL rv;
rv = FALSE;
Sx = MidX; Sy = MidY;
Ex = MidX+sin(Pos*Pi/30000)*XExt;
Ey = MidY-cos(Pos*Pi/30000)*YExt;
rv = ( Sx!=OldMinute.StartX || Ex!=OldMinute.EndX ||
Sy!=OldMinute.StartY || Ey!=OldMinute.EndY );
if (Globals.bAnalog && rv)DrawMinuteHand(dc);
OldMinute.StartX = Sx; OldMinute.EndX = Ex;
OldMinute.StartY = Sy; OldMinute.EndY = Ey;
OldMinute.DontRedraw=FALSE;
return rv;
POINT centre;
int radius;
radius = MIN(x, y)/2;
centre.x = x/2;
centre.y = y/2;
DrawFace(dc, &centre, radius);
PositionHands(&centre, radius);
DrawHands(dc);
}
BOOL UpdateSecondHand(HDC dc,int MidX,int MidY,int XExt,int YExt,WORD Pos)
void DigitalClock(HDC dc, int X, int Y)
{
int Sx, Sy, Ex, Ey;
BOOL rv;
rv = FALSE;
if (Globals.bSeconds) {
Sx = MidX; Sy = MidY;
Ex = MidX+sin(Pos*Pi/3000)*XExt;
Ey = MidY-cos(Pos*Pi/3000)*YExt;
rv = ( Sx!=OldSecond.StartX || Ex!=OldSecond.EndX ||
Sy!=OldSecond.StartY || Ey!=OldSecond.EndY );
if (Globals.bAnalog && rv) DrawSecondHand(dc);
OldSecond.StartX = Sx; OldSecond.EndX = Ex;
OldSecond.StartY = Sy; OldSecond.EndY = Ey;
OldSecond.DontRedraw=FALSE;
}
return rv;
}
void DigitalClock(HDC dc)
{
CHAR szTime[MAX_STRING_LEN];
LPSTR time = szTime;
/* FIXME - this doesn't work very well */
CHAR szTime[255];
static short xChar, yChar;
TEXTMETRIC tm;
SYSTEMTIME st;
LPSYSTEMTIME lpst = &st;
GetLocalTime(&st);
GetTimeFormat(LOCALE_USER_DEFAULT, LOCALE_STIMEFORMAT, lpst, NULL, time,
MAX_STRING_LEN);
SelectObject(dc,CreatePen(PS_SOLID,1,FaceColor));
GetTimeFormat(LOCALE_USER_DEFAULT, LOCALE_STIMEFORMAT, &st, NULL,
szTime, sizeof szTime);
xChar = tm.tmAveCharWidth;
yChar = tm.tmHeight;
xChar = 100;
yChar = 100;
TextOut (dc, xChar, yChar, szTime, strlen (szTime));
DeleteObject(SelectObject(dc,GetStockObject(NULL_PEN)));
}
void AnalogClock(HDC dc)
{
SYSTEMTIME st;
WORD H, M, S, F;
int MidX, MidY, DiffX, DiffY;
BOOL Redraw;
GetLocalTime(&st);
S = st.wSecond;
nLastSecond = S;
H = st.wHour;
M = st.wMinute;
F = st.wMilliseconds / 10;
F = F + S*100;
M = M*1000+F/6;
H = H*1000+M/60;
MidX = MiddleX();
MidY = MiddleY();
DiffX = (Globals.MaxX-MidX*2)/2;
DiffY = (Globals.MaxY-MidY*2)/2;
SelectObject(dc,CreatePen(PS_SOLID,1,FaceColor));
Redraw = FALSE;
if(UpdateHourHand(dc,MidX+DiffX,MidY+DiffY,MidX*0.5,MidY*0.5,H)) Redraw = TRUE;
if(UpdateMinuteHand(dc,MidX+DiffX,MidY+DiffY,MidX*0.65,MidY*0.65,M)) Redraw = TRUE;
if(UpdateSecondHand(dc,MidX+DiffX,MidY+DiffY,MidX*0.79,MidY*0.79,F)) Redraw = TRUE;
DeleteObject(SelectObject(dc,CreatePen(PS_SOLID,1,HandColor)));
if(Redraw)
{
DrawSecondHand(dc);
DrawMinuteHand(dc);
DrawHourHand(dc);
}
DeleteObject(SelectObject(dc,GetStockObject(NULL_PEN)));
}
void Idle(HDC idc)
{
HDC context;
if(idc)
context=idc;
else
context=GetDC(Globals.hMainWnd);
if (!context) return;
if (Globals.bAnalog)
{
AnalogClock(context);
}
else
{
DigitalClock(context);
}
if(!idc) ReleaseDC(Globals.hMainWnd, context);
TextOut (dc, xChar, yChar, szTime, strlen (szTime));
DeleteObject(SelectObject(dc,GetStockObject(NULL_PEN)));
}

23
programs/clock/winclock.h
View File

@ -21,24 +21,5 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <windows.h>
typedef struct
{
int StartX,StartY,EndX,EndY;
BOOL DontRedraw;
} HandData;
extern HandData OldMinute, OldHour, OldSecond;
/* function prototypes */
void DrawFace(HDC dc);
void DrawHourHand(HDC dc);
void DrawMinuteHand(HDC dc);
void DrawSecondHand(HDC dc);
BOOL UpdateHourHand(HDC dc,int MidX,int MidY,int XExt,int YExt,WORD Pos);
BOOL UpdateMinuteHand(HDC dc,int MidX,int MidY,int XExt,int YExt,WORD Pos);
BOOL UpdateSecondHand(HDC dc,int MidX,int MidY,int XExt,int YExt,WORD Pos);
void Idle(HDC idc);
void AnalogClock(HDC dc, int X, int Y);
void DigitalClock(HDC dc, int X, int Y);