/*------------------------------------------------* $Id: pointer.c,v 1.5 92/11/03 17:14:37 tf Exp $ MousePointer images and support functions written by Tobias Ferber on 17-Feb-92 *------------------------------------------------*/ #include #include #include #include #include static char rcs_id[] = "$Id: pointer.c,v 1.5 92/11/03 17:14:37 tf Exp $"; /* * This code imports both: */ extern struct IntuitionBase *IntuitionBase; extern struct GfxBase *GfxBase; /* * A mouse pointer is nothing else than a sprite. Here we expect the * mouse pointer to be sprite #0 (with color registers 17,18 and 19) * Sprites are handled with the SpriteImage structure which *MUST* * be located in CHIP memory (!) This structure looks as follows: * * struct SpriteImage * { USHORT posctl[2]; * used by simple sprite machine * USHORT data[HEIGHT][2]; * actual sprite image, 2 planes * USHORT reserved[2]; * initialized to 0x0,0x0 * }; * */ #define SPRITEIMAGE_SIZE(h) (4+4*(h)+4) /* * We need this to restore the old color map */ static USHORT MouseColors[3]; #define SetColor(vp,reg,val) SetRGB4(vp,reg,((val)>>8)&0x0F, \ ((val)>>4)&0x0F, \ ((val)>>0)&0x0F ) /* * FUNCTIONs * * SaveMouseColors(), ResoreMouseColors() * * SYNOPSIS * * void SaveMouseColors(Window); * void RestoreMouseColors(Windo); * * struct Window *Window; * * DESCRIPTION * * Save/resore the curent mouse pointer colors in the given window. * The mouse pointer is assumed to be sprite #0 and so (only) the color * registers 17, 18 and 19 are saved. * * NOTE * * RestoreMouseColors() can only restore the *LAST* saved colors. */ void SaveMouseColors(struct Window *Window) { struct ColorMap *cm= Window->WScreen->ViewPort.ColorMap; MouseColors[0]= GetRGB4(cm,17); MouseColors[1]= GetRGB4(cm,18); MouseColors[2]= GetRGB4(cm,19); } void RestoreMouseColors(struct Window *Window) { struct ViewPort *vp= &Window->WScreen->ViewPort; SetColor(vp,17,MouseColors[0]); SetColor(vp,18,MouseColors[1]); SetColor(vp,19,MouseColors[2]); } /* * FUNCTION * * SetMousePointer -- Change the mouse pointer image in a window * * SYNOPSIS * * image= SetMousePointer(Window, data, height, width, dx, dy, colors); * * struct SpriteImage *image; * struct Window *Window; * USHORT data[height][2]; * WORD height, width; * WORD dx, dy; * USHORT colors[3]; * * DESCRIPTION * * Set the mouse pointer image in the given window. The image `data' does * *NOT* need to be located in CHIP memory, `height' and `width' define the * image dimensions. The mouse pointer is expected to be sprite 0 and so * it's `colors' (reg. 17,18,19) will be set according to the given color * table. The hot spot is set to (-dx|-dy). * A pointer to the allocated SpriteImage structure will be returned, NULL * if there was an error. * * NOTE * * Maximum width for sprites is 16 ! * Do not forget to UnsetMousePointer() before calling SetMousePointer() * again or before closing your window ! */ USHORT *SetMousePointer(Window, data, height, width, dx, dy, colors) struct Window *Window; USHORT *data; WORD height, width, dx,dy; USHORT colors[3]; { USHORT *image= (USHORT *)AllocMem(SPRITEIMAGE_SIZE(height),MEMF_CHIP|MEMF_CLEAR); if(image) { int i; USHORT *ptr= &image[2]; /* pointer to SpriteImage->data */ for(i=0; iWScreen->ViewPort; SetColor(vp,17,colors[0]); SetColor(vp,18,colors[1]); SetColor(vp,19,colors[2]); } } return(image); } /* * and... */ void UnsetMousePointer(struct Window *Window, USHORT *image, WORD height) { if(image) FreeMem(image,SPRITEIMAGE_SIZE(height)); ClearPointer(Window); RestoreMouseColors(Window); } /* * FUNCTIONs * * FlipPointerX(),FlipPointerY(),FlipPointerZ() * * SYNOPSIS * * void FlipPointerX(Window); * void FlipPointerY(Window); * void FlipPointerZ(Window); * * struct Window *Window; * * DESCRIPTION * * Flip the current mouse pointer image either along the x-axis (horizontally) * or along the y-axis (vertically). FlipPointerZ() will simply swap the 2 * planes of the current pointer. In any case we will me flip the hot spot * with the image. * */ void FlipPointerX(struct Window *Window) { if(Window->Pointer && Window->PtrHeight > 0) { BYTE height= Window->PtrHeight, width= Window->PtrWidth, dy= Window->YOffset, dx= -(15+ Window->XOffset); /* ^ NOT Window->PtrWidth! (we flipped a WORD!) */ USHORT t, *image= Window->Pointer, *data= &Window->Pointer[2]; /* SpriteImage->data */ int i, r, n= 2* Window->PtrHeight; ClearPointer(Window); for(i=0; i>r) & 0x0001) << (15-r) ); data[i]= t; } SetPointer(Window,image,height,width,dx,dy); } } void FlipPointerY(struct Window *Window) { if(Window->Pointer && Window->PtrHeight > 1) { BYTE height= Window->PtrHeight, width= Window->PtrWidth, dx= Window->XOffset, dy= -(Window->PtrHeight+Window->YOffset); ULONG t, *ptr= (ULONG *)Window->Pointer; /* SpriteImage */ int i, n= 1+ Window->PtrHeight; ClearPointer(Window); for(i=1; i<=n/2; i++) /* begin with i=1: SpriteImage->data */ { t= ptr[i]; ptr[i]= ptr[n-i]; ptr[n-i]= t; } SetPointer(Window,ptr,height,width,dx,dy); } } void FlipPointerZ(struct Window *Window) { if(Window->Pointer && Window->PtrHeight > 0); { USHORT t, *ptr= &Window->Pointer[2]; int i, height= Window->PtrHeight; for(i=0; i<2*height; i+=2) { t= ptr[i]; ptr[i]= ptr[i+1]; ptr[i+1]= t; } } } #include "images.h" /* images.S declarations */ struct PointerImage { USHORT *Data; /* the pointer matrix */ WORD Height, Width; /* the dimensions */ WORD xOffset, yOffset; /* the hot spot position */ UWORD *ColorTable; /* the sprite colors */ USHORT *Image; /* the SpriteImage structure */ }; struct PointerImage PointerImages[] = { (USHORT *)NULL, 0, 0, 0, 0,(USHORT *)NULL, NULL, (USHORT *)&GlovePointer[0][0], 14,15, 0, 0,&GloveColors[0], NULL, (USHORT *)&GrabbingGlove[0][0], 14,15, 0, 0,&GloveColors[0], NULL, (USHORT *)&SleepingGlove[0][0], 14,15, 0, 0,&GloveColors[0], NULL, (USHORT *)&DragingGlove[0][0], 12,15,-4,-6,&GloveColors[0], NULL, (USHORT *)&Nessie[0][0], 16,16, 0,-6,&NessieColors[0], NULL, (USHORT *)&BusyBee[0][0], 16,16, 0, 0,&BusyBeeColors[0], NULL, (USHORT *)&ZZBubble[0][0], 22,15,-5, 0,&ZZBubbleColors[0], NULL, (USHORT *)&StopWatch[0][0], 16,16,-5, 0,&StopWatchColors[0], NULL, (USHORT *)&HourGlass[0][0], 24,15, 0, 0,&HourGlassColors[0], NULL, (USHORT *)&DottyPointer[0][0], 13,14, 0, 0,&DottyPointerColors[0], NULL, (USHORT *)&Standard20[0][0], 11,11, 0, 0,&Standard20Colors[0], NULL, (USHORT *)&CrossHair[0][0], 13,13,-6,-6,&CrossHairColors[0], NULL, (USHORT *)&TinyPointer[0][0], 5, 5, 0, 0,&TinyColors[0], NULL, (USHORT *)&BugPointer[0][0], 12,11,-6,-2,&BugPointerColors[0], NULL, (USHORT *)&Invisible[0][0], 1,16, 0, 0,(USHORT *)NULL, NULL, }; /* image numbers */ #define SMI_NONE -1 #define SMI_PREFS 0 #define SMI_KLONDIKE 1 #define SMI_GRABGLOVE 2 #define SMI_SLEEPGLOVE 3 #define SMI_DRAGGLOVE 4 #define SMI_NESSIE 5 #define SMI_BUSYBEE 6 #define SMI_ZZBUBBLE 7 #define SMI_STOPWATCH 8 #define SMI_HOURGLASS 9 #define SMI_DOTTY 10 #define SMI_STANDARD20 11 #define SMI_CROSSHAIR 12 #define SMI_TINY 13 #define SMI_BUG 14 #define SMI_INVISIBLE 15 /* current pointer image */ static struct PointerImage *cpi= (struct PointerImage *)NULL; /* * FUNCTION * * SetPointerImage() -- Set a pre-defined pointer image in a window * * SYNOPSIS * * void SetPointerImage(Window, num); * * struct Window *Window; * int num; * should be one of SMI_xxxxx defined in pointer.h * * DESCRIPTION * * Set the mouse pointer image in the given window. The pre-defined images * are taken from "images.S". * * NOTE * * Do not forget to UnsetMouseImage() i.e. SetMouseImage(SMI_NONE) before * closing your window ! */ void SetMouseImage(struct Window *Window,int num) { if(cpi && cpi->Image) { UnsetMousePointer(Window, cpi->Image, cpi->Height); cpi->Image= (USHORT *)NULL; cpi= (struct PointerImage *)NULL; } else SaveMouseColors(Window); /* first call */ if(num>=0) cpi= &PointerImages[num]; if(num==0) /* Set the preferences mouse pointer */ { struct Preferences prefs; GetPrefs(&prefs, sizeof(struct Preferences)); /* init values for UnsetMousePointer() */ cpi->Height= 16; /* Kickstart 1.3 standard height */ /* Preferences.PointerMatrix[] is a SpriteImage structure */ cpi->Image= SetMousePointer(Window, &prefs.PointerMatrix[2], 16, 16, prefs.XOffset, prefs.YOffset, &prefs.color17); } else if(num>0) { cpi->Image= SetMousePointer(Window, cpi->Data, cpi->Height, cpi->Width, cpi->xOffset, cpi->yOffset, cpi->ColorTable ); } }