[834] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4RTXScanner.cc,v 1.5 2007/05/22 17:10:42 allison Exp $ |
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[954] | 28 | // GEANT4 tag $Name: $ |
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[834] | 29 | // |
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| 30 | // |
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| 31 | |
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| 32 | #ifdef G4VIS_BUILD_RAYTRACERX_DRIVER |
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| 33 | |
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| 34 | #include "G4RTXScanner.hh" |
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| 35 | |
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| 36 | #include "G4TheRayTracer.hh" |
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| 37 | #include "G4RayTracerXViewer.hh" |
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| 38 | #include "G4ViewParameters.hh" |
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| 39 | #include <X11/Xlib.h> |
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| 40 | #include <X11/Xutil.h> |
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| 41 | #include <X11/Xatom.h> |
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| 42 | |
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| 43 | extern "C" { |
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| 44 | Bool G4RayTracerXScannerWaitForNotify (Display*, XEvent* e, char* arg) { |
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| 45 | return (e->type == MapNotify) && (e->xmap.window == (Window) arg); |
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| 46 | } |
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| 47 | } |
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| 48 | |
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| 49 | G4RTXScanner::G4RTXScanner(): |
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| 50 | theNRow(0), theNColumn(0), theIRow(0), theIColumn(0) |
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| 51 | { |
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| 52 | theGSName = "RayTracerX"; |
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| 53 | theGSNickname = "RayTracerX"; |
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| 54 | } |
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| 55 | |
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| 56 | const G4String& G4RTXScanner::GetGSName() const |
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| 57 | {return theGSName;} |
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| 58 | |
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| 59 | const G4String& G4RTXScanner::GetGSNickname() const |
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| 60 | {return theGSNickname;} |
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| 61 | |
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| 62 | void G4RTXScanner::Initialize(G4int nRow, G4int nColumn) { |
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| 63 | theNRow = nRow; |
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| 64 | theNColumn = nColumn; |
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| 65 | G4int nMax = std::max (nRow, nColumn); |
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| 66 | theStep = 1; |
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| 67 | if (nMax > 3) { |
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| 68 | for (;;) { |
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| 69 | theStep *= 3; |
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| 70 | if (theStep > nMax) break; |
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| 71 | } |
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| 72 | } |
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| 73 | theIRow = theStep / 2; |
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| 74 | theIColumn = theStep / 2 - theStep; |
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| 75 | } |
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| 76 | |
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| 77 | G4bool G4RTXScanner::Coords(G4int& iRow, G4int& iColumn) |
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| 78 | { |
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| 79 | // Increment column... |
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| 80 | theIColumn += theStep; |
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| 81 | |
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| 82 | // Skip coordinates covered in the previous scan... |
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| 83 | if ((theIColumn + (3 * theStep) / 2 + 1)%(3 * theStep) == 0 && |
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| 84 | (theIRow + (3 * theStep) / 2 + 1)%(3 * theStep) == 0) |
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| 85 | theIColumn += theStep; |
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| 86 | |
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| 87 | // If necessary, increment row... |
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| 88 | if (theIColumn >= theNColumn) { |
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| 89 | theIColumn = theStep / 2; |
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| 90 | theIRow += theStep; |
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| 91 | } |
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| 92 | |
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| 93 | // Return if finished... |
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| 94 | if (theIRow >= theNRow && theStep <= 1) return false; |
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| 95 | |
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| 96 | // Start next scan if necessary... |
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| 97 | if (theIRow >= theNRow) { |
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| 98 | theStep /= 3; |
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| 99 | theIRow = theStep / 2; |
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| 100 | theIColumn = theStep / 2; |
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| 101 | } |
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| 102 | |
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| 103 | // Return current row and column... |
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| 104 | iRow = theIRow; |
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| 105 | iColumn = theIColumn; |
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| 106 | return true; |
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| 107 | } |
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| 108 | |
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| 109 | G4bool G4RTXScanner::GetXWindow(const G4String& name, G4ViewParameters& vp) |
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| 110 | { |
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| 111 | display = XOpenDisplay(0); // Use display defined by DISPLAY environment. |
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| 112 | if (!display) { |
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| 113 | G4cerr << "G4RTXScanner::Initialize(): cannot get display." |
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| 114 | << G4endl; |
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| 115 | return false; |
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| 116 | } |
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| 117 | |
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| 118 | int screen_num = DefaultScreen(display); |
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| 119 | |
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| 120 | // Window size and position... |
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| 121 | int xOffset = 0, yOffset = 0; |
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| 122 | unsigned int width, height; |
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| 123 | XSizeHints* size_hints = XAllocSizeHints(); |
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| 124 | const G4String& XGeometryString = vp.GetXGeometryString(); |
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| 125 | if (!XGeometryString.empty()) { |
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| 126 | G4int geometryResultMask = XParseGeometry |
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| 127 | ((char*)XGeometryString.c_str(), |
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| 128 | &xOffset, &yOffset, &width, &height); |
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| 129 | if (geometryResultMask & (WidthValue | HeightValue)) { |
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| 130 | if (geometryResultMask & XValue) { |
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| 131 | if (geometryResultMask & XNegative) { |
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| 132 | xOffset = DisplayWidth(display, screen_num) + xOffset - width; |
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| 133 | } |
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| 134 | size_hints->flags |= PPosition; |
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| 135 | size_hints->x = xOffset; |
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| 136 | } |
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| 137 | if (geometryResultMask & YValue) { |
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| 138 | if (geometryResultMask & YNegative) { |
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| 139 | yOffset = DisplayHeight(display, screen_num) + yOffset - height; |
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| 140 | } |
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| 141 | size_hints->flags |= PPosition; |
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| 142 | size_hints->y = yOffset; |
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| 143 | } |
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| 144 | } else { |
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| 145 | G4cout << "ERROR: Geometry string \"" |
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| 146 | << XGeometryString |
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| 147 | << "\" invalid. Using \"600x600\"." |
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| 148 | << G4endl; |
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| 149 | width = 600; |
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| 150 | height = 600; |
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| 151 | } |
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| 152 | } |
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| 153 | size_hints->width = width; |
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| 154 | size_hints->height = height; |
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| 155 | size_hints->flags |= PSize; |
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| 156 | |
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| 157 | win = XCreateSimpleWindow |
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| 158 | (display, RootWindow(display, screen_num), |
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| 159 | xOffset, yOffset, width, height, |
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| 160 | 0, // Border width. |
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| 161 | WhitePixel(display, screen_num), // Border colour. |
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| 162 | BlackPixel(display, screen_num)); // Background colour. |
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| 163 | |
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| 164 | XGCValues values; |
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| 165 | gc = XCreateGC(display, win, 0, &values); |
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| 166 | |
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| 167 | int nMaps; |
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| 168 | Status status = XGetRGBColormaps |
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| 169 | (display, RootWindow(display, screen_num), |
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| 170 | &scmap, &nMaps, XA_RGB_BEST_MAP); |
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| 171 | if (!status) { |
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| 172 | system("xstdcmap -best"); // ...and try again... |
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| 173 | Status status = XGetRGBColormaps |
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| 174 | (display, RootWindow(display, screen_num), |
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| 175 | &scmap, &nMaps, XA_RGB_BEST_MAP); |
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| 176 | if (!status) { |
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| 177 | G4cerr << |
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| 178 | "G4RTXScanner::Initialize(): cannot get color map." |
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| 179 | "\n Perhaps your system does not support RGB_BEST_MAP." |
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| 180 | << G4endl; |
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| 181 | return false; |
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| 182 | } |
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| 183 | } |
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| 184 | if (!scmap->colormap) { |
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| 185 | G4cerr << "G4RTXScanner::Initialize(): color map empty." |
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| 186 | << G4endl; |
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| 187 | return false; |
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| 188 | } |
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| 189 | |
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| 190 | XWMHints* wm_hints = XAllocWMHints(); |
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| 191 | XClassHint* class_hint = XAllocClassHint(); |
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| 192 | const char* window_name = name.c_str(); |
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| 193 | XTextProperty windowName; |
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| 194 | XStringListToTextProperty((char**)&window_name, 1, &windowName); |
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| 195 | |
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| 196 | XSetWMProperties(display, win, &windowName, &windowName, |
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| 197 | 0, 0, size_hints, wm_hints, class_hint); |
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| 198 | |
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| 199 | XMapWindow(display, win); |
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| 200 | |
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| 201 | // Wait for window to appear (wait for an "map notify" event). |
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| 202 | XSelectInput(display, win, StructureNotifyMask); |
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| 203 | XEvent event; |
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| 204 | XIfEvent (display, &event, G4RayTracerXScannerWaitForNotify, (char*) win); |
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| 205 | |
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| 206 | return true; |
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| 207 | } |
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| 208 | |
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| 209 | void G4RTXScanner::Draw |
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| 210 | (unsigned char red, unsigned char green, unsigned char blue) |
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| 211 | // Draw coloured square at current position. |
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| 212 | { |
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| 213 | unsigned long pixel_value = scmap->base_pixel + |
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| 214 | ((unsigned long) ((red * scmap->red_max) / 256.) * scmap->red_mult) + |
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| 215 | ((unsigned long) ((green * scmap->green_max) / 256.) * scmap->green_mult) + |
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| 216 | ((unsigned long) ((blue * scmap->blue_max) / 256.) * scmap->blue_mult); |
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| 217 | XSetForeground(display, gc, pixel_value); |
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| 218 | |
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| 219 | if (theStep > 1) { |
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| 220 | XFillRectangle(display, win, gc, |
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| 221 | theIColumn - theStep / 2, |
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| 222 | theIRow - theStep / 2, |
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| 223 | theStep, theStep); |
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| 224 | } else { |
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| 225 | XDrawPoint(display, win, gc, theIColumn, theIRow); |
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| 226 | } |
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| 227 | |
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| 228 | XFlush(display); |
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| 229 | } |
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| 230 | |
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| 231 | #endif |
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