| 1 | // =============================================================== // |
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| 2 | // // |
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| 3 | // File : AW_Xm.cxx // |
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| 4 | // Purpose : // |
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| 5 | // // |
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| 6 | // Institute of Microbiology (Technical University Munich) // |
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| 7 | // http://www.arb-home.de/ // |
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| 8 | // // |
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| 9 | // =============================================================== // |
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| 10 | |
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| 11 | #include <aw_Xm.hxx> |
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| 12 | |
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| 13 | // @@@ change implementation of draw functions |
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| 14 | // * filter has to be checked early (in AW_device) |
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| 15 | // * functions shall use Position/LineVector/Rectangle only |
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| 16 | |
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| 17 | using namespace AW; |
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| 18 | |
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| 19 | // --------------------- |
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| 20 | // AW_device_Xm |
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| 21 | |
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| 22 | AW_DEVICE_TYPE AW_device_Xm::type() { return AW_DEVICE_SCREEN; } |
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| 23 | |
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| 24 | #define XDRAW_PARAM2(common) (common)->get_display(), (common)->get_window_id() |
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| 25 | #define XDRAW_PARAM3(common,gc) XDRAW_PARAM2(common), (common)->get_GC(gc) |
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| 26 | |
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| 27 | bool AW_device_Xm::line_impl(int gc, const LineVector& Line, AW_bitset filteri) { |
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| 28 | bool drawflag = false; |
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| 29 | if (filteri & filter) { |
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| 30 | LineVector transLine = transform(Line); |
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| 31 | LineVector clippedLine; |
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| 32 | drawflag = clip(transLine, clippedLine); |
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| 33 | if (drawflag) { |
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| 34 | XDrawLine(XDRAW_PARAM3(get_common(), gc), |
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| 35 | AW_INT(clippedLine.start().xpos()), AW_INT(clippedLine.start().ypos()), |
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| 36 | AW_INT(clippedLine.head().xpos()), AW_INT(clippedLine.head().ypos())); |
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| 37 | AUTO_FLUSH(this); |
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| 38 | } |
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| 39 | } |
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| 40 | |
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| 41 | return drawflag; |
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| 42 | } |
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| 43 | |
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| 44 | static bool AW_draw_string_on_screen(AW_device *device, int gc, const char *textBuffer, size_t textStart, size_t textLen, const AW::Position& pos, AW_CL /*cduser*/) { |
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| 45 | // aw_assert(textLen <= strlen(textBuffer)); // already asserted by caller (text_overlay) |
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| 46 | |
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| 47 | AW_device_Xm *device_xm = DOWNCAST(AW_device_Xm*, device); |
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| 48 | AW::Position POS(device_xm->transform(pos)); |
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| 49 | |
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| 50 | XDrawString(XDRAW_PARAM3(device_xm->get_common(), gc), AW_INT(POS.xpos()), AW_INT(POS.ypos()), textBuffer + textStart, (int)textLen); |
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| 51 | AUTO_FLUSH(device); |
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| 52 | |
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| 53 | return true; |
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| 54 | } |
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| 55 | |
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| 56 | |
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| 57 | bool AW_device_Xm::text_impl(int gc, const SizedCstr& cstr, const AW::Position& pos, AW_pos alignment, AW_bitset filteri) { |
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| 58 | return text_overlay(gc, cstr, pos, alignment, filteri, AW_draw_string_on_screen); |
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| 59 | } |
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| 60 | |
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| 61 | enum StippleType { |
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| 62 | ST_UNDEFINED = -1, |
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| 63 | FILLED_125 = 0, |
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| 64 | FILLED_25, |
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| 65 | FILLED_375, |
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| 66 | FILLED_50, |
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| 67 | FILLED_625, |
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| 68 | FILLED_75, |
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| 69 | FILLED_875, |
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| 70 | }; |
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| 71 | |
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| 72 | const int PIXMAP_SIZE = 8; // 8x8 stipple mask |
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| 73 | const int STIPPLE_TYPES = FILLED_875+1; |
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| 74 | |
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| 75 | static Pixmap getStipplePixmap(AW_common_Xm *common, StippleType stippleType) { |
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| 76 | aw_assert(stippleType>=0 && stippleType<STIPPLE_TYPES); |
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| 77 | |
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| 78 | static Pixmap pixmap[STIPPLE_TYPES]; |
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| 79 | static bool initialized = false; |
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| 80 | |
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| 81 | if (!initialized) { |
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| 82 | for (int t = 0; t<STIPPLE_TYPES; ++t) { |
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| 83 | static unsigned char stippleBits[STIPPLE_TYPES][PIXMAP_SIZE] = { |
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| 84 | { 0x40, 0x08, 0x01, 0x20, 0x04, 0x80, 0x10, 0x02 }, // 12.5% |
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| 85 | { 0x88, 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x22 }, // 25% |
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| 86 | { 0x15, 0xa2, 0x54, 0x8a, 0x51, 0x2a, 0x45, 0xa8 }, // 37.5% |
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| 87 | { 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa }, // 50% |
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| 88 | { 0xd5, 0xba, 0x57, 0xea, 0x5d, 0xab, 0x75, 0xae }, // 62.5% |
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| 89 | { 0xbb, 0xee, 0xbb, 0xee, 0xbb, 0xee, 0xbb, 0xee }, // 75% |
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| 90 | { 0xbf, 0xf7, 0xfe, 0xdf, 0xfb, 0x7f, 0xef, 0xfd } // 87.5% |
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| 91 | }; |
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| 92 | pixmap[t] = XCreateBitmapFromData(common->get_display(), common->get_window_id(), reinterpret_cast<const char *>(stippleBits[t]), PIXMAP_SIZE, PIXMAP_SIZE); |
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| 93 | } |
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| 94 | initialized = true; |
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| 95 | } |
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| 96 | |
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| 97 | return pixmap[stippleType]; |
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| 98 | } |
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| 99 | |
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| 100 | AW_device::Fill_Style AW_device_Xm::setFillstyleForGreylevel(int gc, AW::FillStyle filled) { |
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| 101 | // sets fillstyle and stipple for current greylevel of 'gc' |
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| 102 | |
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| 103 | switch (filled.get_style()) { |
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| 104 | case AW::FillStyle::SOLID: return FS_SOLID; |
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| 105 | case AW::FillStyle::EMPTY: return FS_EMPTY; |
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| 106 | |
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| 107 | case AW::FillStyle::SHADED: |
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| 108 | case AW::FillStyle::SHADED_WITH_BORDER: |
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| 109 | break; // detect using greylevel |
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| 110 | } |
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| 111 | |
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| 112 | AW_grey_level greylevel = get_grey_level(gc); |
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| 113 | |
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| 114 | if (greylevel<0.0625) { |
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| 115 | return FS_EMPTY; |
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| 116 | } |
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| 117 | if (greylevel<0.9375) { // otherwise draw solid |
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| 118 | StippleType stippleType = ST_UNDEFINED; |
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| 119 | |
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| 120 | if (greylevel<0.1875) stippleType = FILLED_125; |
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| 121 | else if (greylevel<0.3125) stippleType = FILLED_25; |
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| 122 | else if (greylevel<0.4375) stippleType = FILLED_375; |
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| 123 | else if (greylevel<0.5626) stippleType = FILLED_50; |
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| 124 | else if (greylevel<0.6875) stippleType = FILLED_625; |
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| 125 | else if (greylevel<0.8125) stippleType = FILLED_75; |
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| 126 | else stippleType = FILLED_875; |
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| 127 | |
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| 128 | AW_common_Xm *Common = get_common(); |
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| 129 | Pixmap stipple = getStipplePixmap(Common, stippleType); |
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| 130 | |
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| 131 | Display *Disp = Common->get_display(); |
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| 132 | GC xgc = Common->get_GC(gc); |
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| 133 | |
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| 134 | XSetFillRule(Disp, xgc, WindingRule); |
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| 135 | XSetStipple(Disp, xgc, stipple); |
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| 136 | XSetFillStyle(Disp, xgc, FillStippled); |
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| 137 | |
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| 138 | return FS_GREY; |
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| 139 | } |
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| 140 | return FS_SOLID; |
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| 141 | } |
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| 142 | void AW_device_Xm::resetFillstyleForGreylevel(int gc) { |
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| 143 | // should be called after using setFillstyleForGreylevel (to undo XSetFillStyle) |
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| 144 | // (Note: may be skipped if setFillstyleForGreylevel did not return FS_GREY) |
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| 145 | XSetFillStyle(get_common()->get_display(), get_common()->get_GC(gc), FillSolid); |
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| 146 | } |
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| 147 | |
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| 148 | bool AW_device_Xm::box_impl(int gc, AW::FillStyle filled, const Rectangle& rect, AW_bitset filteri) { |
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| 149 | bool drawflag = false; |
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| 150 | if (filteri & filter) { |
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| 151 | if (filled.is_empty()) { |
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| 152 | drawflag = generic_box(gc, rect, filteri); |
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| 153 | } |
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| 154 | else { |
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| 155 | Rectangle transRect = transform(rect); |
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| 156 | Rectangle clippedRect; |
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| 157 | drawflag = box_clip(transRect, clippedRect); |
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| 158 | if (drawflag) { |
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| 159 | Fill_Style fillStyle = setFillstyleForGreylevel(gc, filled); |
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| 160 | |
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| 161 | if (fillStyle != FS_EMPTY) { |
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| 162 | XFillRectangle(XDRAW_PARAM3(get_common(), gc), |
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| 163 | AW_INT(clippedRect.left()), |
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| 164 | AW_INT(clippedRect.top()), |
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| 165 | AW_INT(clippedRect.width())+1, // see aw_device.hxx@WORLD_vs_PIXEL |
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| 166 | AW_INT(clippedRect.height())+1); |
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| 167 | |
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| 168 | if (fillStyle == FS_GREY) resetFillstyleForGreylevel(gc); |
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| 169 | } |
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| 170 | if (fillStyle != FS_SOLID && filled.get_style() != AW::FillStyle::SHADED) { |
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| 171 | // draw solid box-border (for empty and grey box) |
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| 172 | // (Note: using XDrawRectangle here is wrong) |
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| 173 | generic_box(gc, rect, filteri); |
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| 174 | } |
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| 175 | else { |
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| 176 | AUTO_FLUSH(this); |
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| 177 | } |
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| 178 | } |
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| 179 | } |
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| 180 | } |
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| 181 | return drawflag; |
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| 182 | } |
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| 183 | |
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| 184 | bool AW_device_Xm::polygon_impl(int gc, AW::FillStyle filled, int npos, const AW::Position *pos, AW_bitset filteri) { |
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| 185 | bool drawflag = false; |
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| 186 | if (filteri & filter) { |
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| 187 | if (filled.is_empty()) { |
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| 188 | drawflag = generic_polygon(gc, npos, pos, filteri); |
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| 189 | } |
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| 190 | else { |
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| 191 | Position *transPos = new Position[npos]; |
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| 192 | for (int p = 0; p<npos; ++p) { |
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| 193 | transPos[p] = transform(pos[p]); |
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| 194 | } |
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| 195 | |
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| 196 | int nclippedPos; |
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| 197 | AW::Position *clippedPos = NULp; |
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| 198 | |
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| 199 | drawflag = box_clip(npos, transPos, nclippedPos, clippedPos); |
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| 200 | if (drawflag) { |
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| 201 | Fill_Style fillStyle = setFillstyleForGreylevel(gc, filled); |
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| 202 | |
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| 203 | if (fillStyle != FS_EMPTY) { |
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| 204 | XPoint *xpos = new XPoint[nclippedPos]; |
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| 205 | |
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| 206 | for (int p = 0; p<nclippedPos; ++p) { |
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| 207 | xpos[p].x = AW_INT(clippedPos[p].xpos()); |
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| 208 | xpos[p].y = AW_INT(clippedPos[p].ypos()); |
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| 209 | } |
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| 210 | |
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| 211 | XFillPolygon(XDRAW_PARAM3(get_common(), gc), |
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| 212 | xpos, |
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| 213 | nclippedPos, |
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| 214 | // Complex, |
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| 215 | // Nonconvex, |
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| 216 | Convex, |
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| 217 | CoordModeOrigin); |
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| 218 | |
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| 219 | if (fillStyle == FS_GREY) resetFillstyleForGreylevel(gc); |
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| 220 | delete [] xpos; |
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| 221 | } |
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| 222 | if (fillStyle != FS_SOLID && filled.get_style() != AW::FillStyle::SHADED) { |
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| 223 | // draw solid polygon-border (for empty and grey polygon) |
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| 224 | // (Note: using XDrawRectangle here is wrong) |
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| 225 | generic_polygon(gc, npos, pos, filteri); |
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| 226 | } |
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| 227 | else { |
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| 228 | AUTO_FLUSH(this); |
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| 229 | } |
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| 230 | } |
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| 231 | |
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| 232 | delete [] clippedPos; |
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| 233 | delete [] transPos; |
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| 234 | } |
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| 235 | } |
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| 236 | return drawflag; |
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| 237 | } |
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| 238 | |
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| 239 | bool AW_device_Xm::circle_impl(int gc, AW::FillStyle filled, const AW::Position& center, const AW::Vector& radius, AW_bitset filteri) { |
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| 240 | aw_assert(radius.x()>0 && radius.y()>0); |
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| 241 | return arc_impl(gc, filled, center, radius, 0, 360, filteri); |
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| 242 | } |
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| 243 | |
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| 244 | bool AW_device_Xm::arc_impl(int gc, AW::FillStyle filled, const AW::Position& center, const AW::Vector& radius, int start_degrees, int arc_degrees, AW_bitset filteri) { |
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| 245 | // degrees start at east side of unit circle, |
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| 246 | // but orientation is clockwise (because ARBs y-coordinate grows downwards) |
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| 247 | |
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| 248 | bool drawflag = false; |
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| 249 | if (filteri & filter) { |
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| 250 | Rectangle Box(center-radius, center+radius); |
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| 251 | Rectangle screen_box = transform(Box); |
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| 252 | |
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| 253 | drawflag = !is_outside_clip(screen_box); |
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| 254 | if (drawflag) { |
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| 255 | int width = AW_INT(screen_box.width()); |
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| 256 | int height = AW_INT(screen_box.height()); |
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| 257 | const Position& ulc = screen_box.upper_left_corner(); |
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| 258 | int xl = AW_INT(ulc.xpos()); |
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| 259 | int yl = AW_INT(ulc.ypos()); |
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| 260 | |
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| 261 | aw_assert(arc_degrees >= -360 && arc_degrees <= 360); |
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| 262 | |
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| 263 | // ARB -> X |
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| 264 | start_degrees = -start_degrees; |
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| 265 | arc_degrees = -arc_degrees; |
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| 266 | |
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| 267 | while (start_degrees<0) start_degrees += 360; |
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| 268 | |
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| 269 | Fill_Style fillStyle = setFillstyleForGreylevel(gc, filled); |
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| 270 | if (fillStyle != FS_EMPTY) { |
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| 271 | XFillArc(XDRAW_PARAM3(get_common(), gc), xl, yl, width, height, 64*start_degrees, 64*arc_degrees); |
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| 272 | if (fillStyle == FS_GREY) resetFillstyleForGreylevel(gc); |
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| 273 | if (fillStyle != FS_SOLID && filled.get_style() != AW::FillStyle::SHADED) { |
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| 274 | // draw solid arc-border (for grey arcs) - does not draw pie-lines, only outline is drawn |
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| 275 | arc_impl(gc, AW::FillStyle::EMPTY, center, radius, start_degrees, arc_degrees, filteri); |
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| 276 | } |
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| 277 | } |
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| 278 | else { |
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| 279 | XDrawArc(XDRAW_PARAM3(get_common(), gc), xl, yl, width, height, 64*start_degrees, 64*arc_degrees); |
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| 280 | } |
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| 281 | AUTO_FLUSH(this); |
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| 282 | } |
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| 283 | } |
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| 284 | return drawflag; |
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| 285 | } |
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| 286 | |
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| 287 | void AW_device_Xm::clear(AW_bitset filteri) { |
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| 288 | if (filteri & filter) { |
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| 289 | XClearWindow(XDRAW_PARAM2(get_common())); |
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| 290 | AUTO_FLUSH(this); |
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| 291 | } |
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| 292 | } |
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| 293 | |
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| 294 | void AW_device_Xm::clear_part(const Rectangle& rect, AW_bitset filteri) { |
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| 295 | if (filteri & filter) { |
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| 296 | Rectangle transRect = transform(rect); |
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| 297 | Rectangle clippedRect; |
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| 298 | bool drawflag = box_clip(transRect, clippedRect); |
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| 299 | if (drawflag) { |
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| 300 | XClearArea(XDRAW_PARAM2(get_common()), |
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| 301 | AW_INT(clippedRect.left()), |
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| 302 | AW_INT(clippedRect.top()), |
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| 303 | AW_INT(clippedRect.width())+1, // see aw_device.hxx@WORLD_vs_PIXEL |
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| 304 | AW_INT(clippedRect.height())+1, |
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| 305 | False); |
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| 306 | AUTO_FLUSH(this); |
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| 307 | } |
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| 308 | } |
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| 309 | } |
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| 310 | |
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| 311 | void AW_device_Xm::flush() { |
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| 312 | XFlush(get_common()->get_display()); |
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| 313 | } |
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| 314 | |
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| 315 | void AW_device_Xm::move_region(AW_pos src_x, AW_pos src_y, AW_pos width, AW_pos height, AW_pos dest_x, AW_pos dest_y) { |
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| 316 | int gc = 0; |
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| 317 | XCopyArea(get_common()->get_display(), get_common()->get_window_id(), get_common()->get_window_id(), get_common()->get_GC(gc), |
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| 318 | AW_INT(src_x), AW_INT(src_y), AW_INT(width), AW_INT(height), |
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| 319 | AW_INT(dest_x), AW_INT(dest_y)); |
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| 320 | AUTO_FLUSH(this); |
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| 321 | } |
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| 322 | |
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