1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ |
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2 | /* |
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3 | Copyright (C) 1997 Martin Jones (mjones@kde.org) |
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4 | (C) 1997 Torben Weis (weis@kde.org) |
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5 | |
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6 | This library is free software; you can redistribute it and/or |
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7 | modify it under the terms of the GNU Library General Public |
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8 | License as published by the Free Software Foundation; either |
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9 | version 2 of the License, or (at your option) any later version. |
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10 | |
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11 | This library is distributed in the hope that it will be useful, |
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 | Library General Public License for more details. |
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15 | |
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16 | You should have received a copy of the GNU Library General Public License |
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17 | along with this library; see the file COPYING.LIB. 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 | |
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22 | #include <config.h> |
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23 | #include "htmlcluealigned.h" |
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24 | |
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25 | |
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26 | #define ALIGN_BORDER 0 |
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27 | |
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28 | |
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29 | static HTMLClueAlignedClass html_cluealigned_class; |
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30 | static HTMLClueClass *parent_class = NULL; |
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31 | |
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32 | |
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33 | /* HTMLObject methods. */ |
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34 | |
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35 | static void |
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36 | copy (HTMLObject *self, |
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37 | HTMLObject *dest) |
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38 | { |
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39 | (* HTML_OBJECT_CLASS (parent_class)->copy) (self, dest); |
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40 | |
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41 | HTML_CLUEALIGNED (dest)->next_aligned = NULL; |
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42 | } |
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43 | |
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44 | static gboolean |
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45 | calc_size (HTMLObject *o, HTMLPainter *painter, GList **changed_objs) |
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46 | { |
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47 | HTMLObject *obj; |
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48 | gboolean changed; |
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49 | gint old_width, old_ascent; |
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50 | |
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51 | changed = HTML_OBJECT_CLASS (&html_clue_class)->calc_size (o, painter, changed_objs); |
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52 | |
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53 | old_width = o->width; |
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54 | old_ascent = o->ascent; |
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55 | |
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56 | o->width = 0; |
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57 | o->ascent = ALIGN_BORDER; |
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58 | o->descent = 0; |
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59 | |
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60 | /* FIXME: Shouldn't it call `calc_size()' on the children first!?! */ |
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61 | |
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62 | for (obj = HTML_CLUE (o)->head; obj != 0; obj = obj->next) { |
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63 | if (obj->width > o->width) |
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64 | o->width = obj->width; |
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65 | |
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66 | o->ascent += obj->ascent + obj->descent; |
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67 | |
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68 | if (obj->x != ALIGN_BORDER) { |
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69 | obj->x = ALIGN_BORDER; |
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70 | changed = TRUE; |
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71 | } |
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72 | |
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73 | if (obj->y != o->ascent - obj->descent) { |
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74 | obj->y = o->ascent - obj->descent; |
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75 | changed = TRUE; |
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76 | } |
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77 | } |
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78 | |
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79 | o->ascent += ALIGN_BORDER; |
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80 | o->width += ALIGN_BORDER * 2; |
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81 | |
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82 | if (old_width != o->width || old_ascent != o->ascent) |
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83 | changed = TRUE; |
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84 | |
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85 | return changed; |
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86 | } |
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87 | |
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88 | static void |
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89 | set_max_width (HTMLObject *o, HTMLPainter *painter, gint max_width) |
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90 | { |
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91 | HTMLObject *obj; |
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92 | |
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93 | o->max_width = max_width; |
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94 | |
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95 | for (obj = HTML_CLUE (o)->head; obj != 0; obj = obj->next) |
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96 | html_object_set_max_width (obj, painter, max_width); |
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97 | } |
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98 | |
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99 | |
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100 | void |
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101 | html_cluealigned_type_init (void) |
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102 | { |
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103 | html_cluealigned_class_init (&html_cluealigned_class, HTML_TYPE_CLUEALIGNED, sizeof (HTMLClueAligned)); |
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104 | } |
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105 | |
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106 | void |
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107 | html_cluealigned_class_init (HTMLClueAlignedClass *klass, |
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108 | HTMLType type, |
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109 | guint size) |
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110 | { |
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111 | HTMLObjectClass *object_class; |
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112 | HTMLClueClass *clue_class; |
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113 | |
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114 | clue_class = HTML_CLUE_CLASS (klass); |
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115 | object_class = HTML_OBJECT_CLASS (klass); |
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116 | |
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117 | html_clue_class_init (clue_class, type, size); |
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118 | |
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119 | /* HTMLObject functions FIXME destroy? */ |
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120 | |
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121 | object_class->copy = copy; |
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122 | object_class->calc_size = calc_size; |
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123 | object_class->set_max_width = set_max_width; |
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124 | |
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125 | parent_class = &html_clue_class; |
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126 | } |
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127 | |
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128 | void |
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129 | html_cluealigned_init (HTMLClueAligned *aligned, |
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130 | HTMLClueAlignedClass *klass, |
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131 | HTMLObject *parent, |
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132 | gint x, gint y, |
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133 | gint max_width, gint percent) |
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134 | { |
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135 | HTMLClue *clue; |
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136 | HTMLObject *object; |
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137 | |
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138 | clue = HTML_CLUE (aligned); |
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139 | object = HTML_OBJECT (aligned); |
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140 | |
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141 | html_clue_init (clue, HTML_CLUE_CLASS (klass)); |
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142 | |
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143 | object->x = x; |
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144 | object->y = y; |
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145 | object->max_width = max_width; |
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146 | object->percent = percent; |
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147 | |
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148 | if (percent > 0) |
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149 | object->flags &= ~HTML_OBJECT_FLAG_FIXEDWIDTH; |
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150 | |
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151 | clue->valign = HTML_VALIGN_BOTTOM; |
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152 | clue->halign = HTML_HALIGN_LEFT; |
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153 | |
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154 | aligned->next_aligned = NULL; |
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155 | |
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156 | object->parent = parent; |
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157 | object->flags |= HTML_OBJECT_FLAG_ALIGNED; |
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158 | } |
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159 | |
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160 | HTMLObject * |
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161 | html_cluealigned_new (HTMLObject *parent, |
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162 | gint x, gint y, |
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163 | gint max_width, gint percent) |
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164 | { |
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165 | HTMLClueAligned *aclue; |
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166 | |
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167 | aclue = g_new (HTMLClueAligned, 1); |
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168 | html_cluealigned_init (aclue, &html_cluealigned_class, |
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169 | parent, x, y, max_width, percent); |
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170 | |
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171 | return HTML_OBJECT (aclue); |
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172 | } |
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173 | |
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