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- /*****************************************************************************
- * "Irit" - the 3d polygonal solid modeller. *
- * *
- * Written by: Gershon Elber Unix - X11 Ver 0.1, Mar. 1990 *
- ******************************************************************************
- * General routines to handle the graphic calls. *
- * currently supported devices: *
- * Input: Keyboard, mouse. *
- * Output: X11 device. *
- *****************************************************************************/
-
- #ifdef __hpux
- typedef char *caddr_t; /* Awful kluge. Let me know of a better way. */
- #endif /* __hpux */
-
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/cursorfont.h>
- #include <X11/Xresource.h>
-
- #include <stdio.h>
- #include <string.h>
- #include <math.h>
- #include <ctype.h>
- #include "graphgen.h"
-
- #define POINT_SIZE 0.05 /* Size of + marker drawn. */
- #define POINT_TITLE 0.02 /* Distance between point title and + marker. */
-
- #define FONT_NAME "8x13"
- #define PROGRAM_NAME "irit"
- #define DEFAULT_TRANS_WIDTH 200
- #define DEFAULT_TRANS_HEIGHT 500
- #define DEFAULT_VIEW_WIDTH 400
- #define DEFAULT_VIEW_HEIGHT 400
-
- /* X global specific staff goes here: */
- static Display *XDisplay;
- static int XScreen;
- static Window XRoot;
- static Colormap XColorMap;
- static GC XTransGraphContext;
- static GC XViewGraphContext;
- static Visual *XVisual;
- static XImage *XImageBuffer;
- static Pixmap XIcon;
- static Cursor XCursor;
- static XColor BlackColor;
- static XFontStruct *XLoadedFont;
- static XColor
- *TransCursorColor = NULL,
- *ViewCursorColor = NULL;
- static unsigned long
- TransBackGroundPixel,
- TransBorderPixel,
- TransTextPixel,
- TransSubWinBackPixel,
- TransSubWinBorderPixel,
- ViewBackGroundPixel,
- ViewBorderPixel,
- ViewTextPixel;
- static int
- XFontYOffsetToCenter = 0,
- AbortKeyPressed = FALSE,
- TransHasSize = FALSE,
- TransHasPos = FALSE,
- TransPosX = 0,
- TransPosY = 0,
- ViewHasSize = FALSE,
- ViewHasPos = FALSE,
- ViewPosX = 0,
- ViewPosY = 0,
- CurrentXPosition = 0,
- CurrentYPosition = 0,
- PopTransWndwAlways = TRUE,
- LclFullTransMode = TRUE,
- InGraphicMode = FALSE;
- static unsigned int
- TransBorderWidth = 1,
- TransSubWinBorderWidth = 1,
- TransWidth = DEFAULT_TRANS_WIDTH,
- TransHeight = DEFAULT_TRANS_HEIGHT,
- ViewBorderWidth = 1,
- ViewWidth = DEFAULT_VIEW_WIDTH,
- ViewHeight = DEFAULT_VIEW_HEIGHT;
-
- /* X Colors to be used for viewed object (see also xgraphic.h): */
- int XViewColorDefs[MAX_COLOR + 1][3] =
- {
- { 0, 0, 0 }, /* 0. BLACK */
- { 0, 0, 43350 }, /* 1. BLUE */
- { 0, 43350, 0 }, /* 2. GREEN */
- { 0, 43350, 43350 }, /* 3. CYAN */
- { 43350, 0, 0 }, /* 4. RED */
- { 43350, 0, 43350 }, /* 5. MAGENTA */
- { 43350, 43350, 0 }, /* 6. BROWN */
- { 43350, 43350, 43350 }, /* 7. LIGHTGREY */
- { 21675, 21675, 21675 }, /* 8. DARKGRAY */
- { 21675, 21675, 65535 }, /* 9. LIGHTBLUE */
- { 21675, 65535, 21675 }, /* 10. LIGHTGREEN */
- { 21675, 65535, 65535 }, /* 11. LIGHTCYAN */
- { 65535, 21675, 21675 }, /* 12. LIGHTRED */
- { 65535, 21675, 65535 }, /* 13. LIGHTMAGENTA */
- { 65535, 65535, 21675 }, /* 14. YELLOW */
- { 65535, 65535, 65535 } /* 15. WHITE */
- };
- XColor XViewColors[MAX_COLOR + 1];
-
- /* X Viewing window staff goes here: */
- static Window ViewWndw;
-
- /* X transformation window staff goes here: */
- static Window TransformWndw;
- static Window ObjScrTglWndw;
- static Window PersOrthoTglWndw, PersOrthoZWndw;
- static Window RotateXWndw, RotateYWndw, RotateZWndw;
- static Window TranslateXWndw, TranslateYWndw, TranslateZWndw;
- static Window ScaleWndw;
- static Window DepthCueWndw;
- static Window SaveGIFWndw;
- static Window SavePSWndw;
- static Window SaveMatrixWndw;
- static Window ResetMatrixWndw;
- static Window QuitWndw;
-
- /* Viewing state variables: */
- static int
- ObjectSpaceState = FALSE,
- PerspectiveState = FALSE,
- DepthCueState = FALSE,
- SubWindowWidthState2 = 1,
- SubWindowHeightState2 = 1;
-
- static int GGMapX(RealType x);
- static int GGMapY(RealType y);
- static void ReadXDefaults(void);
- static char *ReadOneXDefault(char *Entry);
- static void SetTransformWindow(int argc, char **argv);
- static void RedrawTransformWindow(void);
- static Window SetTransformSubWindow(int SubTransPosX, int SubTransPosY,
- unsigned int SubTransWidth, unsigned int SubTransHeight);
- static void RedrawTransformSubWindow(Window Win,
- int SubTransPosX, int SubTransPosY,
- unsigned int SubTransWidth, unsigned int SubTransHeight,
- int DrawMiddleVertLine, char *DrawString);
- static void SetViewWindow(int argc, char **argv);
- static void DrawText(Window Win, char *Str, int PosX, int PosY,
- unsigned long Color);
-
- /****************************************************************************
- * Routine to map real -1..1 normalized coordinates to screen X size. *
- ****************************************************************************/
- static int GGMapX(RealType x)
- {
- return ((int) ((x + 1.0) * ViewWidth)) / 2;
- }
-
- /****************************************************************************
- * Routine to map real -1..1 normalized coordinates to screen Y size. *
- ****************************************************************************/
- static int GGMapY(RealType y)
- {
- return ((int) ((1.0 - y) * ViewHeight)) / 2;
- }
-
- /****************************************************************************
- * Routine to move to a normalized point between -1..1 on both axes : *
- ****************************************************************************/
- void GGMyMove(RealType x, RealType y)
- {
- CurrentXPosition = GGMapX(x);
- CurrentYPosition = GGMapY(y);
- }
-
- /****************************************************************************
- * Routine to draw to a normalized point between -1..1 on both axes : *
- ****************************************************************************/
- void GGMyDraw(RealType x, RealType y)
- {
- int NewX, NewY;
-
- XDrawLine(XDisplay, ViewWndw, XViewGraphContext,
- CurrentXPosition, CurrentYPosition,
- NewX = GGMapX(x), NewY = GGMapY(y));
-
- CurrentXPosition = NewX;
- CurrentYPosition = NewY;
- }
-
- /****************************************************************************
- * Routine to set line style. *
- ****************************************************************************/
- void GGMySetLineStyle(int Style)
- {
- switch (Style) {
- case SOLID_LINE:
- XSetLineAttributes(XDisplay, XViewGraphContext,
- 0, LineSolid, CapRound, JoinRound);
- break;
- case DOTTED_LINE:
- XSetLineAttributes(XDisplay, XViewGraphContext,
- 0, LineOnOffDash, CapRound, JoinRound);
- break;
- }
- }
-
- /****************************************************************************
- * Routine to draw to a normelized point between -1..1 on both axes : *
- ****************************************************************************/
- void GGMySetColor(int color)
- {
- XGCValues values;
-
- if (color > MAX_COLOR) color = WHITE;
-
- values.foreground = XViewColors[color].pixel;
- XChangeGC(XDisplay, XViewGraphContext, GCForeground, &values);
- }
-
- /****************************************************************************
- * Routine to reset all the system to starting condition : *
- ****************************************************************************/
- void GGInitGraph(int argc, char **argv, int FullTransMode, int TransAlways)
- {
- int i;
- XGCValues values;
-
- LclFullTransMode = FullTransMode;
-
- PopTransWndwAlways = TransAlways;
-
- /* Lets see if we can get access to the X server before we even start: */
- if ((XDisplay = (Display *) XOpenDisplay(NULL)) == NULL) {
- fprintf(stderr, "Failed to access X server, abored.\n");
- MyExit(-1);
- }
- if ((XLoadedFont = XLoadQueryFont(XDisplay, FONT_NAME)) == NULL) {
- fprintf(stderr, "Failed to load required X font \"%s\", aborted.\n",
- FONT_NAME);
- MyExit(-1);
- }
- XFontYOffsetToCenter = (XLoadedFont -> ascent - XLoadedFont -> descent + 1)
- / 2;
-
- XScreen = DefaultScreen(XDisplay);
- XRoot = RootWindow(XDisplay, XScreen);
- XColorMap = DefaultColormap(XDisplay, XScreen);
- XVisual = DefaultVisual(XDisplay, XScreen);
- values.foreground = WhitePixel(XDisplay, XScreen);
- values.background = BlackPixel(XDisplay, XScreen);
- values.font = XLoadedFont -> fid;
- XTransGraphContext = XCreateGC(XDisplay, XRoot,
- GCForeground | GCBackground | GCFont, &values);
- XViewGraphContext = XCreateGC(XDisplay, XRoot,
- GCForeground | GCBackground, &values);
-
- if (XDisplay->db == NULL)
- XGetDefault(XDisplay, "", "");
- ReadXDefaults();
-
- for (i = 0; i <= MAX_COLOR; i++) {
- XViewColors[i].red = XViewColorDefs[i][0];
- XViewColors[i].green = XViewColorDefs[i][1];
- XViewColors[i].blue = XViewColorDefs[i][2];
-
- /* If fails to allocate the color - take WHITE instead. */
- if (!XAllocColor(XDisplay, XColorMap, &XViewColors[i]))
- XViewColors[i].pixel = WhitePixel(XDisplay, XScreen);
- }
-
- SetTransformWindow(argc, argv);
- SetViewWindow(argc, argv);
-
- GGGraphicFlush();
-
- InGraphicMode = TRUE;
- }
-
- /****************************************************************************
- * Routine to close and shutdown graphic mode : *
- ****************************************************************************/
- void GGCloseGraph(void)
- {
- if (!InGraphicMode) return;
-
- XFreeGC(XDisplay, XViewGraphContext);
- XFreeGC(XDisplay, XTransGraphContext);
- XUnloadFont(XDisplay, XLoadedFont -> fid);
- XCloseDisplay(XDisplay);
-
- InGraphicMode = FALSE;
- }
-
- /*****************************************************************************
- * Routine to print an message on the given location: *
- *****************************************************************************/
- void GGPutMsgXY(char *s, RealType x, RealType y)
- {
- int Len = strlen(s),
- Width = XTextWidth(XLoadedFont, s, Len),
- PosX = GGMapX(x),
- PosY = GGMapY(y);
- XGCValues values;
-
- XDrawString(XDisplay, ViewWndw, XViewGraphContext, PosX - Width / 2,
- PosY + XFontYOffsetToCenter, s, Len);
- }
-
- /*****************************************************************************
- * Routine to clear the vewing area. *
- *****************************************************************************/
- void GGClearViewArea(void)
- {
- XClearWindow(XDisplay, ViewWndw);
- }
-
- /*****************************************************************************
- * Routine to make some sound with given Frequency, Time milliseconds: *
- *****************************************************************************/
- void GGTone(int Frequency, int Duration)
- {
- if (GlblDoGraphics)
- XBell(XDisplay, 0);
- }
-
- /*****************************************************************************
- * Read one default from X resource data base. *
- *****************************************************************************/
- static char *ReadOneXDefault(char *Entry)
- {
- XrmString Type;
- XrmValue Result;
- char Line[LINE_LEN_LONG];
-
- sprintf(Line, "%s.%s", PROGRAM_NAME, Entry);
- if ( XrmGetResource(XDisplay->db, Line, "Program.Name", &Type, &Result ) )
- return Result.addr;
- else
- return NULL;
- }
-
- /*****************************************************************************
- * Read Defaults from X data base. *
- *****************************************************************************/
- static void ReadXDefaults(void)
- {
- int i;
- XColor Color;
- char *TransBackGroundColor = ReadOneXDefault("Trans.BackGround"),
- *TransBorderColor = ReadOneXDefault("Trans*BorderColor"),
- *TransBorderWidthStr = ReadOneXDefault("Trans*BorderWidth"),
- *TransTextColor = ReadOneXDefault("Trans.TextColor"),
- *TransSubWinBackColor = ReadOneXDefault("Trans.SubWin.BackGround"),
- *TransSubWinBorderColor = ReadOneXDefault("Trans.SubWin.BorderColor"),
- *TransSubWinBorderWidthStr = ReadOneXDefault("Trans.SubWin.BorderWidth"),
- *TransGeometry = ReadOneXDefault("Trans.Geometry"),
- *TransCursorColorStr = ReadOneXDefault("Trans.CursorColor"),
- *ViewBackGroundColor = ReadOneXDefault("View.BackGround"),
- *ViewTextColor = ReadOneXDefault("View.TextColor"),
- *ViewBorderColor = ReadOneXDefault("View.BorderColor"),
- *ViewBorderWidthStr = ReadOneXDefault("View.BorderWidth"),
- *ViewGeometry = ReadOneXDefault("View.Geometry"),
- *ViewCursorColorStr = ReadOneXDefault("View.CursorColor");
-
- if (XParseColor(XDisplay, XColorMap, "Black", &BlackColor))
- XAllocColor(XDisplay, XColorMap, &BlackColor);
-
- if (TransBackGroundColor != NULL &&
- XParseColor(XDisplay, XColorMap, TransBackGroundColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- TransBackGroundPixel = Color.pixel;
- else
- TransBackGroundPixel = BlackPixel(XDisplay, XScreen);
-
- if (TransBorderColor != NULL &&
- XParseColor(XDisplay, XColorMap, TransBorderColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- TransBorderPixel = Color.pixel;
- else
- TransBorderPixel = WhitePixel(XDisplay, XScreen);
-
- if (TransBorderWidthStr)
- TransBorderWidth = atoi(TransBorderWidthStr);
- else
- TransBorderWidth = 1;
-
- if (TransTextColor != NULL &&
- XParseColor(XDisplay, XColorMap, TransTextColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- TransTextPixel = Color.pixel;
- else
- TransTextPixel = WhitePixel(XDisplay, XScreen);
-
- if (TransSubWinBackColor != NULL &&
- XParseColor(XDisplay, XColorMap, TransSubWinBackColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- TransSubWinBackPixel = Color.pixel;
- else
- TransSubWinBackPixel = BlackPixel(XDisplay, XScreen);
-
- if (TransSubWinBorderColor != NULL &&
- XParseColor(XDisplay, XColorMap, TransSubWinBorderColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- TransSubWinBorderPixel = Color.pixel;
- else
- TransSubWinBorderPixel = WhitePixel(XDisplay, XScreen);
-
- if (TransSubWinBorderWidthStr)
- TransSubWinBorderWidth = atoi(TransSubWinBorderWidthStr);
- else
- TransSubWinBorderWidth = 1;
-
- if (TransGeometry) {
- i = XParseGeometry(TransGeometry, &TransPosX, &TransPosY,
- &TransWidth, &TransHeight);
- TransHasPos = i & XValue && i & YValue;
- TransHasSize = i & WidthValue && i & HeightValue;
- }
- else
- TransHasSize = TransHasPos = FALSE;
-
- if (TransCursorColorStr != NULL &&
- XParseColor(XDisplay, XColorMap, TransCursorColorStr, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color)) {
- TransCursorColor = (XColor *) malloc(sizeof(XColor));
- *TransCursorColor = Color;
- }
- else
- TransCursorColor = NULL;
-
- if (ViewBackGroundColor &&
- XParseColor(XDisplay, XColorMap, ViewBackGroundColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- ViewBackGroundPixel = Color.pixel;
- else
- ViewBackGroundPixel = BlackPixel(XDisplay, XScreen);
-
- if (ViewBorderColor &&
- XParseColor(XDisplay, XColorMap, ViewBorderColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- ViewBorderPixel = Color.pixel;
- else
- ViewBorderPixel = WhitePixel(XDisplay, XScreen);
-
- if (ViewTextColor != NULL &&
- XParseColor(XDisplay, XColorMap, ViewTextColor, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color))
- ViewTextPixel = Color.pixel;
- else
- ViewTextPixel = WhitePixel(XDisplay, XScreen);
-
- if (ViewBorderWidthStr)
- ViewBorderWidth = atoi(ViewBorderWidthStr);
- else
- ViewBorderWidth = 1;
-
- if (ViewGeometry) {
- i = XParseGeometry(ViewGeometry, &ViewPosX, &ViewPosY,
- &ViewWidth, &ViewHeight);
- ViewHasPos = i & XValue && i & YValue;
- ViewHasSize = i & WidthValue && i & HeightValue;
- }
- else ViewHasSize = ViewHasPos = FALSE;
-
- if (ViewCursorColorStr != NULL &&
- XParseColor(XDisplay, XColorMap, ViewCursorColorStr, &Color) &&
- XAllocColor(XDisplay, XColorMap, &Color)) {
- ViewCursorColor = (XColor *) malloc(sizeof(XColor));
- *ViewCursorColor = Color;
- }
- else
- ViewCursorColor = NULL;
- }
-
- /*****************************************************************************
- * Set up and draw a transformation window. *
- *****************************************************************************/
- static void SetTransformWindow(int argc, char **argv)
- {
- int SubTransPosX, SubTransPosY, SubTransWidth, SubTransHeight;
- long ValueMask;
- XSizeHints Hints;
- XSetWindowAttributes SetWinAttr;
-
- SetWinAttr.background_pixel = TransBackGroundPixel;
- SetWinAttr.border_pixel = TransBorderPixel;
- ValueMask = CWBackPixel | CWBorderPixel;
-
- Hints.flags = PMinSize | PMaxSize;
- Hints.x = Hints.y = 1;
- Hints.min_width = 100;
- Hints.max_width = 1000;
- Hints.min_height = 200;
- Hints.max_height = 1000;
- if (TransHasSize) {
- Hints.flags |= PSize;
- if (TransWidth < Hints.min_width) TransWidth = Hints.min_width;
- if (TransWidth > Hints.max_width) TransWidth = Hints.max_width;
- if (TransHeight < Hints.min_height) TransHeight = Hints.min_height;
- if (TransHeight > Hints.max_height) TransHeight = Hints.max_height;
- Hints.width = TransWidth;
- Hints.height = TransHeight;
- }
- else {
- Hints.flags |= PSize;
- Hints.width = TransWidth = DEFAULT_TRANS_WIDTH;
- Hints.height = TransHeight = DEFAULT_TRANS_HEIGHT;
- }
- if (TransHasPos) {
- Hints.flags |= USPosition;
- Hints.x = TransPosX;
- Hints.y = TransPosY;
- }
-
- TransformWndw = XCreateWindow(XDisplay, XRoot,
- TransPosX, TransPosY,
- TransWidth, TransHeight,
- 1, 0, CopyFromParent, CopyFromParent,
- ValueMask, &SetWinAttr);
-
- XSetStandardProperties(XDisplay, TransformWndw,
- PROGRAM_NAME, PROGRAM_NAME, None,
- argv, argc,
- &Hints);
-
- /* Set our own cursor: */
- XCursor = XCreateFontCursor(XDisplay, XC_hand1);
- XDefineCursor(XDisplay, TransformWndw, XCursor);
- if (TransCursorColor != NULL)
- XRecolorCursor(XDisplay, XCursor, TransCursorColor, &BlackColor);
-
- /* Now lets create the sub windows inside. Note we do not place them yet. */
- SubTransPosX = 0;
- SubTransPosY = TransHeight;
- SubTransWidth = TransWidth - SubTransPosX * 2;
- SubTransHeight = TransHeight / 25;
-
- /* OBJECT/SCREEN space toggle: */
- ObjScrTglWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- /* PERSPECTIVE/ORTHOGRPHIC toggle: */
- PersOrthoTglWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- PersOrthoZWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- /* ROTATE: */
- RotateXWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- RotateYWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- RotateZWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- /* TRANSLATE: */
- TranslateXWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- TranslateYWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- TranslateZWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- /* SCALE: */
- ScaleWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- /* DEPTH CUE: */
- DepthCueWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- if (LclFullTransMode) {
- /* SAVE GIF: */
- SaveGIFWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- /* SAVE PS: */
- SavePSWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- /* SAVE MATRIX: */
- SaveMatrixWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- }
-
- /* RESET MATRIX: */
- ResetMatrixWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- /* QUIT: */
- QuitWndw = SetTransformSubWindow(SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
-
- XSelectInput(XDisplay, TransformWndw, ExposureMask);
-
- ObjectSpaceState = GlblTransformMode == TRANS_OBJECT;
- PerspectiveState = GlblViewMode == VIEW_PERSPECTIVE;
- DepthCueState = GlblDepthCue;
- }
-
- /*****************************************************************************
- * Redraw a transformation window (after exposure or resize events). *
- *****************************************************************************/
- static void RedrawTransformWindow(void)
- {
- int SubTransPosX, SubTransPosY,
- SizeChanged = FALSE;
- unsigned long SubTransWidth, SubTransHeight;
- long ValueMask;
- XSizeHints Hints;
- XWindowAttributes TransWindowAttr;
- XSetWindowAttributes SetWinAttr;
-
- XClearWindow(XDisplay, TransformWndw);
-
- /* Get the window attributes, and see if it is the same size or not. */
- XGetWindowAttributes(XDisplay, TransformWndw, &TransWindowAttr);
- if (TransWindowAttr.width != TransWidth ||
- TransWindowAttr.height != TransHeight)
- {
- SizeChanged = TRUE;
- TransWidth = TransWindowAttr.width;
- TransHeight = TransWindowAttr.height;
- }
-
- /* Now lets update the sub windows inside: */
- SubTransPosX = MIN(TransWidth / 10, 20);
- SubTransPosY = TransHeight / (LclFullTransMode ? 30 : 25);
- SubTransWidth = TransWidth - SubTransPosX * 2;
- SubTransHeight = TransHeight / (LclFullTransMode ? 30 : 25);
-
- /* OBJECT/SCREEN space toggle: */
- RedrawTransformSubWindow(ObjScrTglWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- GlblTransformMode == TRANS_OBJECT ?
- "Object" : "Screen");
- SubTransPosY += SubTransHeight * 2;
-
- /* PERSPECTIVE/ORTHOGRAPHIC toggle: */
- RedrawTransformSubWindow(PersOrthoTglWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- GlblViewMode == VIEW_ORTHOGRAPHIC ?
- "Orthographic" : "Perspective");
- SubTransPosY += SubTransHeight;
- RedrawTransformSubWindow(PersOrthoZWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Z", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
- SubTransPosY += SubTransHeight;
-
- /* ROTATE: */
- DrawText(TransformWndw, "Rotate", TransWidth / 2, SubTransPosY,
- TransTextPixel);
- SubTransPosY += SubTransHeight / 2;
- RedrawTransformSubWindow(RotateXWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "X", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
- RedrawTransformSubWindow(RotateYWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Y", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
- RedrawTransformSubWindow(RotateZWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Z", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
-
- /* TRANSLATE: */
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Translate", TransWidth / 2, SubTransPosY,
- TransTextPixel);
- SubTransPosY += SubTransHeight / 2;
- RedrawTransformSubWindow(TranslateXWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "X", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
- RedrawTransformSubWindow(TranslateYWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Y", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
- RedrawTransformSubWindow(TranslateZWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Z", SubTransPosX / 2,
- SubTransPosY - SubTransHeight / 4, TransTextPixel);
-
- /* SCALE: */
- SubTransPosY += SubTransHeight;
- DrawText(TransformWndw, "Scale", TransWidth / 2, SubTransPosY,
- TransTextPixel);
- SubTransPosY += SubTransHeight / 2;
- RedrawTransformSubWindow(ScaleWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, TRUE, NULL);
-
- /* DEPTH CUE: */
- SubTransPosY += SubTransHeight * 2;
- RedrawTransformSubWindow(DepthCueWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- GlblDepthCue ? "Depth Cue" : "No Depth Cue");
-
- if (LclFullTransMode) {
- /* SAVE GIF: */
- SubTransPosY += SubTransHeight * 2;
- RedrawTransformSubWindow(SaveGIFWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- "Save GIF");
-
- /* SAVE PS: */
- SubTransPosY += SubTransHeight * 2;
- RedrawTransformSubWindow(SavePSWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- "Save PS");
-
- /* SAVE MATRIX: */
- SubTransPosY += SubTransHeight * 2;
- RedrawTransformSubWindow(SaveMatrixWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- "Save Matrix");
- }
-
- /* RESET MATRIX: */
- SubTransPosY += SubTransHeight * 2;
- RedrawTransformSubWindow(ResetMatrixWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE,
- "Reset Matrix");
-
- /* QUIT: */
- SubTransPosY += SubTransHeight * 3;
- RedrawTransformSubWindow(QuitWndw, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight, FALSE, "Quit" );
-
- /* Save half of the window width so we can refer to the zero point on X */
- /* axes, which is the vertical line in the middle of the window: */
- SubWindowWidthState2 = SubTransWidth / 2;
- SubWindowHeightState2 = SubTransHeight / 2;
-
- GGGraphicFlush();
- }
-
- /*****************************************************************************
- * Set up a transformation sub window. *
- *****************************************************************************/
- static Window SetTransformSubWindow(int SubTransPosX, int SubTransPosY,
- unsigned int SubTransWidth, unsigned int SubTransHeight)
- {
- long ValueMask;
- XSetWindowAttributes SetWinAttr;
- Window Win;
-
- SetWinAttr.background_pixel = TransSubWinBackPixel;
- SetWinAttr.border_pixel = TransSubWinBorderPixel;
- SetWinAttr.bit_gravity = SetWinAttr.win_gravity = CenterGravity;
- ValueMask = CWBackPixel | CWBorderPixel | CWBitGravity | CWWinGravity;
-
- Win = XCreateWindow(XDisplay, TransformWndw,
- SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight,
- 1, 0, CopyFromParent, CopyFromParent,
- ValueMask, &SetWinAttr);
-
- XSelectInput(XDisplay, Win, ButtonPressMask | Button1MotionMask);
-
- XMapWindow(XDisplay, Win);
-
- return Win;
- }
-
- /*****************************************************************************
- * Redraw a transformation sub window. *
- *****************************************************************************/
- static void RedrawTransformSubWindow(Window Win,
- int SubTransPosX, int SubTransPosY,
- unsigned int SubTransWidth, unsigned int SubTransHeight,
- int DrawMiddleVertLine, char *DrawString)
- {
- XGCValues values;
-
- XMoveResizeWindow(XDisplay, Win, SubTransPosX, SubTransPosY,
- SubTransWidth, SubTransHeight);
- if (DrawMiddleVertLine) {
- values.foreground = TransSubWinBorderPixel;
- XChangeGC(XDisplay, XTransGraphContext, GCForeground, &values);
-
- XDrawLine(XDisplay, Win, XTransGraphContext,
- SubTransWidth / 2, 0, SubTransWidth / 2, SubTransHeight);
- }
- if (DrawString != NULL) {
- DrawText(Win, DrawString, SubTransWidth / 2, SubTransHeight / 2,
- TransTextPixel);
- }
- }
-
- /*****************************************************************************
- * Set up a view window. *
- *****************************************************************************/
- static void SetViewWindow(int argc, char **argv)
- {
- long ValueMask;
- XSizeHints Hints;
- XSetWindowAttributes SetWinAttr;
-
- SetWinAttr.background_pixel = ViewBackGroundPixel;
- SetWinAttr.border_pixel = ViewBorderPixel;
- ValueMask = CWBackPixel | CWBorderPixel;
-
- Hints.flags = PMinSize | PMaxSize;
- Hints.x = Hints.y = 1;
- Hints.min_width = 50;
- Hints.max_width = 1000;
- Hints.min_height = 50;
- Hints.max_height = 1000;
- if (ViewHasSize) {
- Hints.flags |= PSize;
- if (ViewWidth < Hints.min_width) ViewWidth = Hints.min_width;
- if (ViewWidth > Hints.max_width) ViewWidth = Hints.max_width;
- if (ViewHeight < Hints.min_height) ViewHeight = Hints.min_height;
- if (ViewHeight > Hints.max_height) ViewHeight = Hints.max_height;
- Hints.width = ViewWidth;
- Hints.height = ViewHeight;
- }
- else {
- Hints.flags |= PSize;
- Hints.width = ViewWidth = DEFAULT_VIEW_WIDTH;
- Hints.height = ViewHeight = DEFAULT_VIEW_HEIGHT;
- }
- if (ViewHasPos) {
- Hints.flags |= USPosition;
- Hints.x = ViewPosX;
- Hints.y = ViewPosY;
- }
-
- ViewWndw = XCreateWindow(XDisplay, XRoot,
- ViewPosX, ViewPosY,
- ViewWidth, ViewHeight,
- 1, 0, CopyFromParent, CopyFromParent,
- ValueMask, &SetWinAttr);
-
- XSetStandardProperties(XDisplay, ViewWndw,
- PROGRAM_NAME, PROGRAM_NAME, None,
- argv, argc,
- &Hints);
-
- /* Set our own cursor: */
- XCursor = XCreateFontCursor(XDisplay, XC_iron_cross);
- XDefineCursor(XDisplay, ViewWndw, XCursor);
- if (ViewCursorColor != NULL)
- XRecolorCursor(XDisplay, XCursor, ViewCursorColor, &BlackColor);
-
- XSelectInput(XDisplay, ViewWndw, ExposureMask | ButtonPressMask);
-
- XMapWindow(XDisplay, ViewWndw);
- }
-
- /*****************************************************************************
- * Return View window ID and the address of the display it is in. *
- *****************************************************************************/
- long GGGetViewWindowID(long *XDisplayAddr, long *XColorMapID)
- {
- *XDisplayAddr = (long) XDisplay;
- *XColorMapID = (long) XColorMap;
-
- return (long) ViewWndw;
- }
-
- /******************************************************************************
- * Returns status of abort key if pressed, and reset it. *
- ******************************************************************************/
- int GGIsAbortKeyPressed(void)
- {
- int RetVal = AbortKeyPressed;
-
- AbortKeyPressed = FALSE;
-
- return RetVal;
- }
-
- /******************************************************************************
- * Flush output of graphic command. *
- ******************************************************************************/
- void GGGraphicFlush(void)
- {
- XFlush(XDisplay);
- }
-
- /******************************************************************************
- * Handle X events *
- ******************************************************************************/
- GraphicEventType GGGetGraphicEvent(RealType *ChangeFactor)
- {
- static int LastX;
- int Dx;
- XEvent Event;
- XWindowAttributes WinAttr;
-
- XMapWindow(XDisplay, TransformWndw);
-
- while (TRUE) {
- XNextEvent(XDisplay, &Event);
- switch (Event.type) {
- case Expose:
- /* Get rid of all Expose events in the queue. */
- while (XCheckWindowEvent(XDisplay, Event.xbutton.window,
- ExposureMask, &Event));
- if (Event.xbutton.window == TransformWndw)
- RedrawTransformWindow();
- else if (Event.xbutton.window == ViewWndw) {
- XGetWindowAttributes(XDisplay, ViewWndw, &WinAttr);
- ViewWidth = WinAttr.width;
- ViewHeight = WinAttr.height;
- UpdateInteractHandleInput();
- }
- break;
- case ButtonPress:
- LastX = Event.xbutton.x;
- *ChangeFactor = ((RealType) (LastX - SubWindowWidthState2)) /
- SubWindowWidthState2;
- if (Event.xbutton.button == 3) {
- AbortKeyPressed = TRUE;
- break;
- }
-
- if (Event.xbutton.window == ObjScrTglWndw) {
- XClearWindow(XDisplay, ObjScrTglWndw);
- GlblTransformMode = GlblTransformMode == TRANS_OBJECT ?
- TRANS_SCREEN :
- TRANS_OBJECT;
- DrawText(ObjScrTglWndw,
- GlblTransformMode == TRANS_OBJECT ? "Object" :
- "Screen",
- SubWindowWidthState2, SubWindowHeightState2,
- TransTextPixel);
- return EVENT_SCR_OBJ_TGL;
- }
- else if (Event.xbutton.window == PersOrthoTglWndw) {
- XClearWindow(XDisplay, PersOrthoTglWndw);
- GlblViewMode = GlblViewMode == VIEW_PERSPECTIVE ?
- VIEW_ORTHOGRAPHIC :
- VIEW_PERSPECTIVE;
- DrawText(PersOrthoTglWndw,
- GlblViewMode == VIEW_PERSPECTIVE ? "Perspective" :
- "Orthographic",
- SubWindowWidthState2, SubWindowHeightState2,
- TransTextPixel);
- return EVENT_PERS_ORTHO_TGL;
- }
- else if (Event.xbutton.window == PersOrthoZWndw) {
- return EVENT_PERS_ORTHO_Z;
- }
- else if (Event.xbutton.window == RotateXWndw) {
- return EVENT_ROTATE_X;
- }
- else if (Event.xbutton.window == RotateYWndw) {
- return EVENT_ROTATE_Y;
- }
- else if (Event.xbutton.window == RotateZWndw) {
- return EVENT_ROTATE_Z;
- }
- else if (Event.xbutton.window == TranslateXWndw) {
- return EVENT_TRANSLATE_X;
- }
- else if (Event.xbutton.window == TranslateYWndw) {
- return EVENT_TRANSLATE_Y;
- }
- else if (Event.xbutton.window == TranslateZWndw) {
- return EVENT_TRANSLATE_Z;
- }
- else if (Event.xbutton.window == ScaleWndw) {
- return EVENT_SCALE;
- }
- else if (Event.xbutton.window == DepthCueWndw) {
- XClearWindow(XDisplay, DepthCueWndw);
- GlblDepthCue = !GlblDepthCue;
- DrawText(DepthCueWndw,
- GlblDepthCue ? "Depth Cue" : "No Depth Cue",
- SubWindowWidthState2, SubWindowHeightState2,
- TransTextPixel);
- return EVENT_DEPTH_CUE;
- }
- else if (LclFullTransMode &&
- Event.xbutton.window == SaveMatrixWndw) {
- return EVENT_SAVE_MATRIX;
- }
- else if (LclFullTransMode &&
- Event.xbutton.window == SaveGIFWndw) {
- return EVENT_SAVE_GIF;
- }
- else if (LclFullTransMode &&
- Event.xbutton.window == SavePSWndw) {
- return EVENT_SAVE_PS;
- }
- else if (Event.xbutton.window == ResetMatrixWndw) {
- return EVENT_RESET_MATRIX;
- }
- else if (Event.xbutton.window == QuitWndw) {
- if (!PopTransWndwAlways)
- XUnmapWindow(XDisplay, TransformWndw);
- GGGraphicFlush();
- return EVENT_QUIT;
- }
- break;
- case MotionNotify:
- /* We may get events of movement in Y which are ignored. */
- if (Event.xbutton.x - LastX == 0) break;
-
- *ChangeFactor = ((RealType) (Event.xbutton.x - LastX)) /
- SubWindowWidthState2;
- LastX = Event.xbutton.x;
-
- if (Event.xbutton.window == PersOrthoZWndw) {
- return EVENT_PERS_ORTHO_Z;
- }
- else if (Event.xbutton.window == RotateXWndw) {
- return EVENT_ROTATE_X;
- }
- else if (Event.xbutton.window == RotateYWndw) {
- return EVENT_ROTATE_Y;
- }
- else if (Event.xbutton.window == RotateZWndw) {
- return EVENT_ROTATE_Z;
- }
- else if (Event.xbutton.window == TranslateXWndw) {
- return EVENT_TRANSLATE_X;
- }
- else if (Event.xbutton.window == TranslateYWndw) {
- return EVENT_TRANSLATE_Y;
- }
- else if (Event.xbutton.window == TranslateZWndw) {
- return EVENT_TRANSLATE_Z;
- }
- else if (Event.xbutton.window == ScaleWndw) {
- return EVENT_SCALE;
- }
- break;
- default:
- fprintf(stderr, "undefined event type %d.\n", Event.type);
- }
- }
- }
-
- /******************************************************************************
- * Draw text centered at the given position. *
- ******************************************************************************/
- static void DrawText(Window Win, char *Str, int PosX, int PosY,
- unsigned long Color)
- {
- int Len = strlen(Str),
- Width = XTextWidth(XLoadedFont, Str, Len);
- XGCValues values;
-
- values.foreground = Color;
- XChangeGC(XDisplay, XTransGraphContext, GCForeground, &values);
-
- XDrawString(XDisplay, Win, XTransGraphContext, PosX - Width / 2,
- PosY + XFontYOffsetToCenter, Str, Len);
- }
-