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annotate src/console-xlike-inc.h @ 4963:4ec0248f9185

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merge
author Ben Wing <ben@xemacs.org>
date Mon, 01 Feb 2010 06:21:33 -0600
parents b3ce27ca7647
children a6c778975d7d
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1 /* Definitions for use in *-xlike-inc.c files.
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2 Copyright (C) 2010 Ben Wing.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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23 #ifndef INCLUDED_console_xlike_inc_h_
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24 #define INCLUDED_console_xlike_inc_h_
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25
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26 /* X and GTK are quite similar, since GTK based its structure on Xlib.
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27 However, there are many small differences. Creating two separate
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28 versions of the code, as Bill Perry did originally, is easier to code
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29 but hard to maintain and leads to bit rot. On the other hand, trying to
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30 abstract out into device methods, as is done generally for different
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31 window systems, gets very hairy very quickly because the differences are
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32 on the level of individual library functions, constants and types, of
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33 which there are large number. Abstracting them into device methods
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34 would lead to a large number of very small functions and very
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35 hard-to-read code.
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36
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37 Instead, we handle the situation by having only one copy, placed in a
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38 file called *-xlike-inc.c (e.g. redisplay-xlike-inc.c) and
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39 conditionalizing using ifdefs. Because we can compile with both X and
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40 GTK at once, we include this file inside of the appropriate
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41 device-specific file (e.g. redisplay-gtk.c or redisplay-x.c). The `inc'
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42 in *-xlike-inc.c indicates that this is a file meant to be included in
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43 another file, despite the fact that it is a .c file.
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44
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45 To signal which variety of "xlike" we are compiling for, either
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46 THIS_IS_X or THIS_IS_GTK needs to be defined, prior to including the
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47 *-xlike-inc.c file. */
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48
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49
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50 /* About the representation of color below:
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51
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52 X has two ways of representing a color: (a) as an unsigned long
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53 representing a color pixel value, i.e. the actual value stored in memory
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54 or a file at a particular pixel location to indicate that the pixel
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55 takes on a specific color; and (b) an XColor structure, which
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56 encapsulates both the RGB components of a color and the associated color
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57 pixel value.
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58
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59 We call the former type XLIKE_PIXEL and the latter XLIKE_COLOR, along
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60 with routines to convert from one to the other. Differences between the
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61 two in specific functions and structures should be abstracted using the
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62 XLIKE_FOO() routines, e.g. XLIKE_SET_GC_COLOR(). */
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63
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64 #if defined (THIS_IS_X) && defined (THIS_IS_GTK)
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65 #error "Exactly one of THIS_IS_X and THIS_IS_GTK may be defined."
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66 #endif
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67
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68 #if !defined (THIS_IS_X) && !defined (THIS_IS_GTK)
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69 #error "Either THIS_IS_X or THIS_IS_GTK must be defined."
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70 #endif
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71
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72 #ifdef THIS_IS_X
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73 # include "console-x-impl.h"
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74 # ifdef NEED_GCCACHE_H
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75 # include "xgccache.h"
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76 # endif
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77 # ifdef NEED_GLYPHS_H
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78 # include "glyphs-x.h"
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79 # endif
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80 # ifdef NEED_OBJECTS_IMPL_H
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81 # include "objects-x-impl.h"
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82 # endif
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83 #else /* THIS_IS_GTK */
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84 # include "console-gtk-impl.h"
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85 # ifdef NEED_GCCACHE_H
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86 # include "gccache-gtk.h"
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87 # endif
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88 # ifdef NEED_GLYPHS_H
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89 # include "glyphs-gtk.h"
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90 # endif
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91 # ifdef NEED_OBJECTS_IMPL_H
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92 # include "objects-gtk-impl.h"
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93 # endif
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94 #endif /* THIS_IS_GTK */
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95
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96 /***************************************************************************/
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97 /* Common definitions */
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98 /***************************************************************************/
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99
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100 #define XLIKE_PASTE_1(a,b) a##_##b
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101 #define XLIKE_PASTE(a,b) XLIKE_PASTE_1(a,b)
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102 #define XFUN(name) XLIKE_PASTE (XLIKE_NAME, name)
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103
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104 #define XLIKE_CONSOLE_HAS_METHOD_1(xlike, name) CONSOLE_HAS_METHOD (xlike, name)
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105 #define XLIKE_CONSOLE_HAS_METHOD(name) \
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106 XLIKE_CONSOLE_HAS_METHOD_1 (XLIKE_NAME, name)
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107
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108 #define XCOLOR_INSTANCE_XLIKE_COLOR(x) \
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109 COLOR_INSTANCE_XLIKE_COLOR (XCOLOR_INSTANCE (x))
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110
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111 #ifdef THIS_IS_X
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112
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113 /***************************************************************************/
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114 /* Definitions implementing X flavor of XLIKE */
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115 /***************************************************************************/
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116
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117 #define XLIKE_NAME x
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118 #define USED_IF_X(var) var
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119 #define USED_IF_GTK(var) UNUSED (var)
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120
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121 /* types */
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122 typedef Display * XLIKE_DISPLAY;
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123 typedef Window XLIKE_WINDOW;
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124 typedef GC XLIKE_GC;
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125 typedef XRectangle XLIKE_RECTANGLE;
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126 typedef XGCValues XLIKE_GCVALUES;
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127 typedef XColor XLIKE_COLOR;
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128 typedef unsigned long XLIKE_PIXEL;
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129
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130 /* constants */
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131 #define XLIKE_NONE None
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132 #define XLIKE_FALSE False
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133
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134 #define XLIKE_GC_BACKGROUND GCBackground
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135 #define XLIKE_GC_CLIP_MASK GCClipMask
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136 #define XLIKE_GC_CLIP_X_ORIGIN GCClipXOrigin
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137 #define XLIKE_GC_CLIP_Y_ORIGIN GCClipYOrigin
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138 #define XLIKE_GC_EXPOSURES GCGraphicsExposures
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139 #define XLIKE_GC_FILL GCFillStyle
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140 #define XLIKE_GC_FONT GCFont
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141 #define XLIKE_GC_FOREGROUND GCForeground
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142 #define XLIKE_GC_FUNCTION GCFunction
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143 #define XLIKE_GC_LINE_WIDTH GCLineWidth
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144 #define XLIKE_GC_STIPPLE GCStipple
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145 #define XLIKE_GC_TILE GCTile
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146
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147 #define XLIKE_GX_COPY GXcopy
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148 #define XLIKE_GX_XOR GXxor
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149
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150 #define XLIKE_FILL_STIPPLED FillStippled
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151 #define XLIKE_FILL_OPAQUE_STIPPLED FillOpaqueStippled
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152 #define XLIKE_FILL_TILED FillTiled
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153 #define XLIKE_FILL_SOLID FillSolid
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154
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155 /* functions */
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156 #define GET_XLIKE_DISPLAY(d) DEVICE_X_DISPLAY (d)
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157 #define GET_XLIKE_X_DISPLAY(d) DEVICE_X_DISPLAY (d)
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158 #define GET_XLIKE_WINDOW(w) XtWindow (FRAME_X_TEXT_WIDGET (f))
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159 #define XLIKE_FILL_RECTANGLE(dpy, x_win, gc, x, y, width, height) \
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160 XFillRectangle (dpy, x_win, gc, x, y, width, height)
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161 #define XLIKE_DRAW_RECTANGLE(dpy, x_win, gc, x, y, width, height) \
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162 XDrawRectangle (dpy, x_win, gc, x, y, width, height)
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163 #define XLIKE_DRAW_LINE(dpy, x_win, gc, x1, y1, x2, y2) \
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164 XDrawLine (dpy, x_win, gc, x1, y1, x2, y2)
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165 #define XLIKE_TEXT_WIDTH(fi, ptr, len) XTextWidth (fi, (char *) ptr, len)
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166 #define XLIKE_TEXT_WIDTH_WIDE(fi, ptr, len) XTextWidth16 (fi, (XChar2b *) ptr, len)
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167
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168 #define XLIKE_DISPLAY_LINE_HEIGHT(dl) DISPLAY_LINE_HEIGHT (dl)
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169 #define XLIKE_DISPLAY_LINE_YPOS(dl) DISPLAY_LINE_YPOS (dl)
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170 #define XLIKE_DISPLAY_LINE_TOP_CLIP(dl) ((dl)->top_clip)
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171 #define XLIKE_SET_CLIP_RECTANGLE(dpy, gc, xorig, yorig, prect) \
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172 /* #### why not Unsorted? */ \
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173 XSetClipRectangles (dpy, gc, xorig, yorig, prect, 1, YXBanded)
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174 #define XLIKE_CLEAR_CLIP_MASK(dpy, gc) \
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175 do \
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176 { \
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177 XSetClipMask (dpy, gc, None); \
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178 XSetClipOrigin (dpy, gc, 0, 0); \
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179 } \
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180 while (0)
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181 #define XLIKE_FLUSH(dpy) XSync (dpy, False)
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182 #define XLIKE_CLEAR_AREA(dpy, win, x, y, width, height) \
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183 XClearArea (dpy, win, x, y, width, height, False)
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184
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185 #define IMAGE_INSTANCE_XLIKE_MASK IMAGE_INSTANCE_X_MASK
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186 #define XIMAGE_INSTANCE_XLIKE_PIXMAP XIMAGE_INSTANCE_X_PIXMAP
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187 #define COLOR_INSTANCE_XLIKE_COLOR COLOR_INSTANCE_X_COLOR
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188 #define FONT_INSTANCE_XLIKE_FONT FONT_INSTANCE_X_FONT
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189 #define DEVICE_XLIKE_GC_CACHE DEVICE_X_GC_CACHE
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190 #define DEVICE_XLIKE_GRAY_PIXMAP DEVICE_X_GRAY_PIXMAP
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191 #define XLIKE_SET_GC_FILL(gc, style) ((gc).fill_style = (style))
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192 #define XLIKE_COLOR_TO_PIXEL(c) ((c).pixel)
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193 #define XLIKE_SET_GC_COLOR(lval, rval) ((lval) = (rval).pixel)
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194 #define XLIKE_SET_GC_PIXEL(lval, rval) ((lval) = (rval))
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195 #define XLIKE_FONT_NUM(val) ((val)->fid)
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196
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197 /************ End X flavor of XLIKE **********/
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198
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199
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200 #else /* THIS_IS_GTK */
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201
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202 /***************************************************************************/
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203 /* Definitions implementing GTK flavor of XLIKE */
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204 /***************************************************************************/
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205
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206 #define XLIKE_NAME gtk
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207 #define USED_IF_X(var) UNUSED (var)
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208 #define USED_IF_GTK(var) var
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209
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210 /*types */
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211 typedef void * XLIKE_DISPLAY;
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212 typedef GdkWindow * XLIKE_WINDOW;
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213 typedef GdkGC * XLIKE_GC;
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214 typedef GdkRectangle XLIKE_RECTANGLE;
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215 typedef GdkGCValues XLIKE_GCVALUES;
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216 typedef GdkColor XLIKE_COLOR;
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217 typedef gulong XLIKE_PIXEL;
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218
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219 /* constants */
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220 #define XLIKE_NONE 0
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221 #define XLIKE_FALSE FALSE
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222
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223 #define XLIKE_GC_BACKGROUND GDK_GC_BACKGROUND
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224 #define XLIKE_GC_CLIP_MASK GDK_GC_CLIP_MASK
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225 #define XLIKE_GC_CLIP_X_ORIGIN GDK_GC_CLIP_X_ORIGIN
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226 #define XLIKE_GC_CLIP_Y_ORIGIN GDK_GC_CLIP_Y_ORIGIN
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227 #define XLIKE_GC_EXPOSURES GDK_GC_EXPOSURES
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228 #define XLIKE_GC_FILL GDK_GC_FILL
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229 #define XLIKE_GC_FONT GDK_GC_FONT
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230 #define XLIKE_GC_FOREGROUND GDK_GC_FOREGROUND
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231 #define XLIKE_GC_FUNCTION GDK_GC_FUNCTION
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232 #define XLIKE_GC_LINE_WIDTH GDK_GC_LINE_WIDTH
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233 #define XLIKE_GC_STIPPLE GDK_GC_STIPPLE
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234 #define XLIKE_GC_TILE GDK_GC_TILE
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235
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236 #define XLIKE_GX_COPY GDK_COPY
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237 #define XLIKE_GX_XOR GDK_XOR
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238
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239 #define XLIKE_FILL_STIPPLED GDK_STIPPLED
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240 #define XLIKE_FILL_OPAQUE_STIPPLED GDK_OPAQUE_STIPPLED
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241 #define XLIKE_FILL_TILED GDK_TILED
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242 #define XLIKE_FILL_SOLID GDK_SOLID
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243
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244 /* functions */
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245
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246 /* Avoid unused-variable warning involving D */
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247 #define GET_XLIKE_DISPLAY(d) (USED (d), NULL)
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248 #define GET_XLIKE_X_DISPLAY(d) (USED (d), GDK_DISPLAY ())
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249 #define GET_XLIKE_WINDOW(w) GET_GTK_WIDGET_WINDOW (FRAME_GTK_TEXT_WIDGET (w))
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250 #define XLIKE_FILL_RECTANGLE(dpy, x_win, gc, x, y, width, height) \
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251 (USED (dpy), gdk_draw_rectangle (GDK_DRAWABLE (x_win), gc, TRUE, \
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252 x, y, width, height))
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253 #define XLIKE_DRAW_RECTANGLE(dpy, x_win, gc, x, y, width, height) \
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254 (USED (dpy), gdk_draw_rectangle (GDK_DRAWABLE (x_win), gc, FALSE, \
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255 x, y, width, height))
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256 #define XLIKE_DRAW_LINE(dpy, x_win, gc, x1, y1, x2, y2) \
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257 (USED (dpy), gdk_draw_line (GDK_DRAWABLE (x_win), gc, x1, y1, x2, y2))
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258 #define XLIKE_TEXT_WIDTH(fi, ptr, len) \
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259 gdk_text_width (fi, (char *) ptr, len)
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260 #define XLIKE_TEXT_WIDTH_WIDE(fi, ptr, len) \
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261 gdk_text_width_wc (fi, (GdkWChar *) ptr, len)
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262
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263 /* FIXME: This is totally bogus. It removes dl->top_clip from the
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264 equations. If there is a bug involving this, fix it properly!
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265 Or just ensure that top_clip is 0. */
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266 #define XLIKE_DISPLAY_LINE_HEIGHT(dl) \
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267 ((dl)->ascent + (dl)->descent - (dl)->clip)
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268 #define XLIKE_DISPLAY_LINE_YPOS(dl) ((dl)->ypos - (dl)->ascent)
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269 #define XLIKE_DISPLAY_LINE_TOP_CLIP(dl) (0)
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270 #define XLIKE_SET_CLIP_RECTANGLE(dpy, gc, xorig, yorig, prect) \
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271 do \
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272 { \
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273 USED (dpy); \
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274 gdk_gc_set_clip_rectangle (gc, prect); \
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275 gdk_gc_set_clip_origin (gc, xorig, yorig); \
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276 } \
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277 while (0)
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278 #define XLIKE_CLEAR_CLIP_MASK(dpy, gc) \
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279 do \
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280 { \
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281 USED (dpy); \
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282 gdk_gc_set_clip_rectangle (gc, NULL); \
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283 gdk_gc_set_clip_origin (gc, 0, 0); \
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284 } \
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285 while (0)
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286 #define XLIKE_FLUSH(dpy) gdk_flush ()
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287 #define XLIKE_CLEAR_AREA(dpy, win, x, y, width, height) \
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288 (USED (dpy), gdk_window_clear_area (win, x, y, width, height))
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289
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290 #define IMAGE_INSTANCE_XLIKE_MASK IMAGE_INSTANCE_GTK_MASK
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291 #define XIMAGE_INSTANCE_XLIKE_PIXMAP XIMAGE_INSTANCE_GTK_PIXMAP
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292 #define COLOR_INSTANCE_XLIKE_COLOR(ci) (*COLOR_INSTANCE_GTK_COLOR (ci))
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293 #define FONT_INSTANCE_XLIKE_FONT FONT_INSTANCE_GTK_FONT
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294 #define DEVICE_XLIKE_GRAY_PIXMAP DEVICE_GTK_GRAY_PIXMAP
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295 #define DEVICE_XLIKE_GC_CACHE DEVICE_GTK_GC_CACHE
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296 #define XLIKE_SET_GC_FILL(gc, style) ((gc).fill = (style))
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297 #define XLIKE_COLOR_TO_PIXEL(c) ((c).pixel)
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298 #define XLIKE_SET_GC_COLOR(lval, rval) ((lval) = (rval))
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299 #define XLIKE_SET_GC_PIXEL(lval, rval) ((lval).pixel = (rval))
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300 #define XLIKE_FONT_NUM(val) (val)
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301
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302 /************ End GTK flavor of XLIKE **********/
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303
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304 #endif /* (not) THIS_IS_X */
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305
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306
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307 #endif /* INCLUDED_console_xlike_inc_h_ */