1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ |
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2 | /* This file is part of the GtkHTML library. |
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3 | |
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4 | Copyright (C) 2000 Helix Code, Inc. |
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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 "gtkhtmldebug.h" |
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24 | #include "htmlcolor.h" |
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25 | #include "htmlcolorset.h" |
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26 | #include "htmlengine.h" |
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27 | #include "htmlengine-edit.h" |
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28 | #include "htmlengine-save.h" |
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29 | #include "htmlimage.h" |
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30 | #include "htmlpainter.h" |
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31 | #include "htmlsearch.h" |
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32 | #include "htmltable.h" |
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33 | #include "htmltablepriv.h" |
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34 | #include "htmltablecell.h" |
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35 | |
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36 | #include "htmlshape.h" |
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37 | #include "htmlframe.h" |
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38 | #include "htmlframeset.h" |
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39 | |
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40 | |
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41 | HTMLFramesetClass html_frameset_class; |
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42 | static HTMLObjectClass *parent_class = NULL; |
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43 | |
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44 | static gint |
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45 | html_frameset_get_view_height (HTMLFrameset *set) |
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46 | { |
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47 | HTMLObject *o = HTML_OBJECT (set); |
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48 | |
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49 | while (o->parent != NULL) { |
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50 | if (HTML_OBJECT_TYPE (o->parent) == HTML_TYPE_FRAMESET) { |
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51 | return (o->ascent + o->descent); |
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52 | } |
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53 | o = o->parent; |
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54 | } |
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55 | return html_engine_get_view_height (set->parent->engine); |
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56 | } |
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57 | |
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58 | static gint |
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59 | html_frameset_get_view_width (HTMLFrameset *set) |
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60 | { |
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61 | HTMLObject *o = HTML_OBJECT (set); |
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62 | |
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63 | while (o->parent != NULL) { |
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64 | if (HTML_OBJECT_TYPE (o->parent) == HTML_TYPE_FRAMESET) { |
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65 | return html_engine_get_view_width (HTML_FRAMESET (o->parent)->parent->engine); |
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66 | } |
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67 | |
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68 | o = o->parent; |
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69 | } |
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70 | return html_engine_get_view_width (set->parent->engine); |
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71 | } |
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72 | |
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73 | gboolean |
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74 | html_frameset_append (HTMLFrameset *set, HTMLObject *frame) |
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75 | { |
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76 | g_return_val_if_fail (frame != NULL, FALSE); |
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77 | g_return_val_if_fail (set != NULL, FALSE); |
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78 | |
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79 | if (set->frames->len >= set->cols->len * set->rows->len) |
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80 | return FALSE; |
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81 | |
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82 | |
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83 | g_ptr_array_add (set->frames, frame); |
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84 | html_object_set_parent (frame, HTML_OBJECT (set)); |
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85 | return TRUE; |
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86 | } |
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87 | |
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88 | static void |
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89 | calc_dimension (GPtrArray *dim, gint *span, gint total) |
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90 | { |
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91 | HTMLLength *len; |
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92 | int i; |
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93 | int adj; |
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94 | int remain; |
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95 | int num_frac = 0; |
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96 | |
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97 | remain = total; |
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98 | for (i = 0; i < dim->len; i++) { |
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99 | len = g_ptr_array_index (dim, i); |
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100 | span[i] = 0; |
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101 | |
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102 | if (len->type == HTML_LENGTH_TYPE_PIXELS) |
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103 | span[i] = len->val; |
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104 | else if (len->type == HTML_LENGTH_TYPE_FRACTION) |
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105 | num_frac += len->val; |
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106 | else if (len->type == HTML_LENGTH_TYPE_PERCENT) |
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107 | span[i] = (total * len->val) / 100; |
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108 | |
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109 | remain -= span[i]; |
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110 | } |
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111 | |
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112 | |
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113 | if (remain > 0 && num_frac) { |
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114 | adj = remain / num_frac; |
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115 | for (i = 0; i < dim->len; i++) { |
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116 | len = g_ptr_array_index (dim, i); |
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117 | if (len->type == HTML_LENGTH_TYPE_FRACTION) { |
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118 | span[i] = adj * len->val; |
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119 | remain -= span[i]; |
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120 | } |
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121 | } |
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122 | } |
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123 | |
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124 | adj = 1; |
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125 | if (remain < 0) |
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126 | adj = -1; |
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127 | |
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128 | i = 0; |
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129 | while (remain != 0) { |
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130 | if (span[i] > 0) { |
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131 | span[i] += adj; |
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132 | remain -= adj; |
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133 | } |
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134 | |
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135 | i++; |
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136 | if (i >= dim->len) |
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137 | i = 0; |
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138 | } |
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139 | } |
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140 | |
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141 | static gboolean |
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142 | calc_size (HTMLObject *o, HTMLPainter *painter, GList **changed_objs) |
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143 | { |
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144 | HTMLFrameset *set = HTML_FRAMESET (o); |
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145 | HTMLObject *frame = NULL; |
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146 | |
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147 | gint view_width; |
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148 | gint view_height; |
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149 | |
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150 | gint remain_x; |
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151 | gint remain_y; |
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152 | gint r, c, i; |
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153 | |
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154 | gint *widths; |
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155 | gint *heights; |
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156 | |
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157 | view_width = html_frameset_get_view_width (set); |
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158 | view_height = html_frameset_get_view_height (set); |
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159 | |
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160 | o->ascent = view_height; |
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161 | o->width = view_width; |
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162 | o->descent = 0; |
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163 | |
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164 | heights = g_malloc (set->rows->len * sizeof (gint)); |
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165 | widths = g_malloc (set->cols->len * sizeof (gint)); |
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166 | |
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167 | calc_dimension (set->cols, widths, view_width); |
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168 | calc_dimension (set->rows, heights, view_height); |
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169 | |
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170 | remain_y = view_height; |
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171 | for (r = 0; r < set->rows->len; r++) { |
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172 | |
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173 | remain_x = view_width; |
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174 | for (c = 0; c < set->cols->len; c++) { |
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175 | i = (r * set->cols->len) + c; |
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176 | |
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177 | if (i < set->frames->len) { |
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178 | frame = g_ptr_array_index (set->frames, i); |
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179 | |
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180 | if (HTML_OBJECT_TYPE (frame) == HTML_TYPE_FRAME) |
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181 | html_frame_set_size (HTML_FRAME (frame), widths[c], heights[r]); |
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182 | else { |
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183 | HTML_OBJECT (frame)->width = widths[c]; |
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184 | HTML_OBJECT (frame)->ascent = heights[r]; |
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185 | HTML_OBJECT (frame)->descent = 0; |
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186 | } |
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187 | html_object_calc_size (HTML_OBJECT (frame), painter, changed_objs); |
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188 | |
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189 | HTML_OBJECT (frame)->x = view_width - remain_x; |
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190 | HTML_OBJECT (frame)->y = view_height + heights[r] - remain_y; |
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191 | |
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192 | } |
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193 | |
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194 | remain_x -= widths[c]; |
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195 | } |
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196 | |
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197 | remain_y -= heights[r]; |
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198 | } |
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199 | |
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200 | g_free (widths); |
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201 | g_free (heights); |
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202 | return TRUE; |
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203 | } |
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204 | |
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205 | void |
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206 | html_frameset_init (HTMLFrameset *set, GtkHTML *parent, char *rows, char *cols) |
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207 | { |
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208 | html_object_init (HTML_OBJECT (set), HTML_OBJECT_CLASS (&html_frameset_class)); |
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209 | set->parent = parent; |
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210 | |
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211 | set->cols = NULL; |
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212 | set->rows = NULL; |
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213 | |
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214 | set->cols = g_ptr_array_new (); |
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215 | set->rows = g_ptr_array_new (); |
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216 | |
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217 | if (cols == NULL) |
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218 | cols = "100%"; |
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219 | |
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220 | html_length_array_parse (set->cols, cols); |
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221 | |
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222 | if (rows == NULL) |
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223 | rows = "100%"; |
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224 | |
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225 | html_length_array_parse (set->rows, rows); |
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226 | |
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227 | set->frames = g_ptr_array_new (); |
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228 | } |
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229 | |
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230 | |
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231 | static void |
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232 | draw (HTMLObject *o, |
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233 | HTMLPainter *p, |
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234 | gint x, gint y, |
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235 | gint width, gint height, |
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236 | gint tx, gint ty) |
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237 | { |
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238 | HTMLFrameset *set; |
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239 | int i; |
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240 | set = HTML_FRAMESET (o); |
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241 | |
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242 | tx += o->x; |
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243 | ty += o->y - o->ascent; |
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244 | |
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245 | |
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246 | /* Do nothing by default. We don't know how to paint ourselves. */ |
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247 | for (i = 0; i < set->frames->len; i++) { |
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248 | html_object_draw (HTML_OBJECT (g_ptr_array_index (set->frames, i)), |
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249 | p, x - o->x, y - o->y + o->ascent, |
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250 | width, height, |
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251 | tx, ty); |
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252 | } |
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253 | } |
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254 | |
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255 | /* static void |
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256 | draw_background (HTMLObject *self, |
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257 | HTMLPainter *painter, |
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258 | gint x, gint y, |
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259 | gint width, gint height, |
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260 | gint tx, gint ty) |
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261 | { |
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262 | ArtIRect paint; |
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263 | GdkColor color; |
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264 | |
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265 | html_object_calc_intersection (self, &paint, x, y, width, height); |
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266 | if (art_irect_empty (&paint)) |
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267 | return; |
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268 | |
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269 | |
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270 | gdk_color_parse ("#000000", &color); |
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271 | html_painter_draw_background (painter, |
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272 | &color, |
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273 | NULL, |
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274 | tx + paint.x0, |
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275 | ty + paint.y0, |
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276 | paint.x1 - paint.x0, |
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277 | paint.y1 - paint.y0, |
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278 | paint.x0 - self->x, |
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279 | paint.y0 - (self->y - self->ascent)); |
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280 | } */ |
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281 | |
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282 | static void |
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283 | destroy (HTMLObject *self) |
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284 | { |
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285 | HTMLFrameset *set; |
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286 | gint i; |
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287 | |
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288 | set = HTML_FRAMESET (self); |
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289 | for (i = 0; i < set->frames->len; i++) |
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290 | html_object_destroy (g_ptr_array_index (set->frames, i)); |
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291 | |
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292 | html_length_array_destroy (set->cols); |
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293 | html_length_array_destroy (set->rows); |
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294 | |
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295 | (* parent_class->destroy) (self); |
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296 | } |
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297 | |
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298 | static void |
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299 | set_max_width (HTMLObject *o, HTMLPainter *painter, gint w) |
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300 | { |
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301 | HTMLFrameset *set = HTML_FRAMESET (o); |
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302 | gint remain_x; |
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303 | gint c, i; |
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304 | gint *widths; |
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305 | |
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306 | (* HTML_OBJECT_CLASS (parent_class)->set_max_width) (o, painter, w); |
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307 | widths = g_malloc (set->cols->len * sizeof (gint)); |
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308 | |
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309 | calc_dimension (set->cols, widths, w); |
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310 | |
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311 | remain_x = w; |
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312 | for (i = 0; i < set->frames->len; i++) { |
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313 | c = i % set->cols->len; |
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314 | if (i < set->frames->len) |
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315 | html_object_set_max_width (HTML_OBJECT (g_ptr_array_index (set->frames, i)), painter, widths [c]); |
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316 | remain_x -= widths[c]; |
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317 | } |
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318 | g_free (widths); |
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319 | } |
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320 | |
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321 | static HTMLObject* |
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322 | check_point (HTMLObject *self, |
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323 | HTMLPainter *painter, |
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324 | gint x, gint y, |
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325 | guint *offset_return, |
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326 | gboolean for_cursor) |
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327 | { |
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328 | HTMLFrameset *set = HTML_FRAMESET (self); |
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329 | HTMLObject *obj; |
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330 | int i; |
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331 | |
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332 | |
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333 | x -= self->x; |
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334 | y -= self->y - self->ascent; |
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335 | |
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336 | for (i = 0; i < set->frames->len; i++) { |
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337 | obj = html_object_check_point (g_ptr_array_index (set->frames, i), painter, |
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338 | x, y, offset_return, for_cursor); |
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339 | |
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340 | if (obj != NULL) |
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341 | return obj; |
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342 | |
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343 | } |
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344 | |
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345 | return NULL; |
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346 | } |
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347 | |
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348 | static gboolean |
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349 | is_container (HTMLObject *self) |
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350 | { |
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351 | return TRUE; |
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352 | } |
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353 | |
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354 | /* static void |
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355 | reset (HTMLObject *self) |
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356 | { |
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357 | HTMLFrameset *set; |
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358 | gint i; |
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359 | |
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360 | (* HTML_OBJECT_CLASS (parent_class)->reset) (self); |
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361 | set = HTML_FRAMESET (self); |
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362 | for (i = 0; i < set->frames->len; i++) |
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363 | html_object_reset (g_ptr_array_index (set->frames, i)); |
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364 | |
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365 | } */ |
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366 | |
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367 | static void |
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368 | forall (HTMLObject *self, |
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369 | HTMLEngine *e, |
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370 | HTMLObjectForallFunc func, |
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371 | gpointer data) |
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372 | { |
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373 | HTMLFrameset *set; |
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374 | gint i; |
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375 | |
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376 | set = HTML_FRAMESET (self); |
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377 | for (i = 0; i < set->frames->len; i++) |
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378 | html_object_forall (g_ptr_array_index (set->frames, i), e, func, data); |
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379 | (* func) (self, e, data); |
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380 | } |
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381 | |
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382 | |
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383 | HTMLObject * |
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384 | html_frameset_new (GtkHTML *parent, gchar *rows, gchar *cols) |
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385 | { |
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386 | HTMLFrameset *set; |
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387 | |
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388 | set = g_new (HTMLFrameset, 1); |
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389 | |
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390 | html_frameset_init (set, parent, rows, cols); |
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391 | |
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392 | return HTML_OBJECT (set); |
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393 | } |
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394 | |
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395 | static gint |
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396 | calc_min_width (HTMLObject *o, HTMLPainter *p) |
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397 | { |
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398 | return -1; |
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399 | } |
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400 | |
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401 | void |
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402 | html_frameset_type_init (void) |
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403 | { |
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404 | html_frameset_class_init (&html_frameset_class, HTML_TYPE_FRAMESET, sizeof (HTMLFrameset)); |
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405 | } |
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406 | |
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407 | void |
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408 | html_frameset_class_init (HTMLFramesetClass *klass, |
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409 | HTMLType type, |
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410 | guint object_size) |
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411 | { |
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412 | HTMLObjectClass *object_class = HTML_OBJECT_CLASS (klass); |
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413 | |
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414 | html_object_class_init (object_class, type, object_size); |
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415 | |
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416 | object_class->calc_size = calc_size; |
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417 | object_class->draw = draw; |
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418 | object_class->destroy = destroy; |
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419 | object_class->check_point = check_point; |
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420 | object_class->set_max_width = set_max_width; |
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421 | |
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422 | /* object_class->draw_background = draw_background; */ |
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423 | object_class->forall = forall; |
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424 | /* object_class->reset = reset; */ |
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425 | object_class->is_container = is_container; |
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426 | |
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427 | object_class->calc_min_width = calc_min_width; |
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428 | /* |
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429 | object_class->copy = copy; |
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430 | object_class->op_copy = op_copy; |
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431 | object_class->op_cut = op_cut; |
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432 | object_class->split = split; |
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433 | object_class->merge = merge; |
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434 | object_class->accepts_cursor = accepts_cursor; |
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435 | object_class->destroy = destroy; |
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436 | object_class->calc_preferred_width = calc_preferred_width; |
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437 | object_class->find_anchor = find_anchor; |
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438 | object_class->is_container = is_container; |
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439 | object_class->search = search; |
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440 | object_class->fit_line = fit_line; |
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441 | object_class->append_selection_string = append_selection_string; |
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442 | object_class->head = head; |
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443 | object_class->tail = tail; |
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444 | object_class->next = next; |
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445 | object_class->prev = prev; |
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446 | object_class->save = save; |
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447 | object_class->save_plain = save_plain; |
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448 | object_class->check_page_split = check_page_split; |
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449 | object_class->get_bg_color = get_bg_color; |
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450 | object_class->get_recursive_length = get_recursive_length; |
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451 | object_class->remove_child = remove_child; |
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452 | */ |
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453 | |
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454 | parent_class = &html_object_class; |
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455 | } |
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456 | |
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457 | |
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458 | |
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459 | |
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