Mercurial > MadButterfly

annotate src/shape_rect.c @ 36:51a20f240ce3

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short-cut for no-rounded rectangle
author Thinker K.F. Li <thinker@branda.to>
date Wed, 06 Aug 2008 02:20:28 +0800
parents 581a03196093
children e292beec12d4
rev   line source
33
d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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diff changeset
1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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4 #include "mb_types.h"
d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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5 #include "shapes.h"
d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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6
d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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7 typedef struct _sh_rect {
d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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8 shape_t shape;
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9 co_aix x, y;
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10 co_aix w, h;
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d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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11 co_aix rx, ry;
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12 co_aix poses[12][2];
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d82749f77108 Fix bug of demo and remove *_fill() and *_stroke().
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13 } sh_rect_t;
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14
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15 shape_t *sh_rect_new(co_aix x, co_aix y, co_aix w, co_aix h,
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16 co_aix rx, co_aix ry) {
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17 sh_rect_t *rect;
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18
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19 rect = (sh_rect_t *)malloc(sizeof(sh_rect_t));
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20 if(rect == NULL)
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21 return NULL;
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22
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23 memset(rect, 0, sizeof(sh_rect_t));
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24
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25 rect->shape.sh_type = SHT_RECT;
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26 rect->x = x;
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27 rect->y = y;
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28 rect->w = w;
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29 rect->h = h;
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30 rect->rx = rx;
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31 rect->ry = ry;
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32
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33 return (shape_t *)rect;
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34 }
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35
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36 void sh_rect_free(shape_t *shape) {
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37 free(shape);
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38 }
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39
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40 void sh_rect_transform(shape_t *shape) {
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07c523c799f4 Fix bug of relative path command
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41 sh_rect_t *rect = (sh_rect_t *)shape;
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42 co_aix x, y, w, h, rx, ry;
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43 co_aix (*poses)[2];
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44 co_aix width;
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45 area_t *area;
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46 int i;
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07c523c799f4 Fix bug of relative path command
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47
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48 x = rect->x;
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49 y = rect->y;
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50 w = rect->w;
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51 h = rect->h;
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52 rx = rect->rx;
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53 ry = rect->ry;
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54
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55 poses = rect->poses;
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56
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57 if(rect->rx != 0 && rect->ry != 0) {
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58 poses[0][0] = x + w - rx;
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59 poses[0][1] = y;
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60 poses[1][0] = x + w;
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61 poses[1][1] = y;
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62 poses[2][0] = x + w;
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63 poses[2][1] = y + ry;
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64
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65 poses[3][0] = x + w;
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66 poses[3][1] = y + h - ry;
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67 poses[4][0] = x + w;
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68 poses[4][1] = y + h;
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69 poses[5][0] = x + w - rx;
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70 poses[5][1] = y + h;
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71
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72 poses[6][0] = x + rx;
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73 poses[6][1] = y + h;
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74 poses[7][0] = x;
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75 poses[7][1] = y + h;
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76 poses[8][0] = x;
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77 poses[8][1] = y + h - ry;
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78
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79 poses[9][0] = x;
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80 poses[9][1] = y + ry;
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81 poses[10][0] = x;
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82 poses[10][1] = y;
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83 poses[11][0] = x + rx;
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84 poses[11][1] = y;
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85
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86 for(i = 0; i < 12; i++)
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87 coord_trans_pos(shape->coord, &poses[i][0], &poses[i][1]);
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88
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89 geo_from_positions(shape->geo, 12, poses);
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90 } else {
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91 poses[0][0] = x;
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92 poses[0][1] = y;
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93 poses[1][0] = x + w;
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94 poses[1][1] = y;
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95 poses[2][0] = x + w;
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96 poses[2][1] = y + h;
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97 poses[3][0] = x;
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98 poses[3][1] = y + h;
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99
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100 for(i = 0; i < 4; i++)
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101 coord_trans_pos(shape->coord, &poses[i][0], &poses[i][1]);
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102
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103 geo_from_positions(shape->geo, 4, poses);
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104 }
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105
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106 if(shape->stroke) {
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107 area = shape->geo->cur_area;
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108 width = shape->stroke_width;
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109 area->x -= width / 2 + 1;
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110 area->y -= width / 2 + 1;
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111 area->w += width + 2;
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112 area->h += width + 2;
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113 }
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114 }
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115
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116 void sh_rect_draw(shape_t *shape, cairo_t *cr) {
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117 sh_rect_t *rect = (sh_rect_t *)shape;
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118 int i;
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119 co_aix (*poses)[2];
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120
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121 poses = rect->poses;
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122 if(rect->rx != 0 && rect->ry != 0) {
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123 cairo_move_to(cr, poses[11][0], poses[11][1]);
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124 for(i = 0; i < 12; i += 3) {
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125 cairo_line_to(cr, poses[i][0], poses[i][1]);
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126 cairo_curve_to(cr,
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127 poses[i + 1][0], poses[i + 1][1],
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128 poses[i + 1][0], poses[i + 1][1],
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129 poses[i + 2][0], poses[i + 2][1]);
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130 }
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131 } else {
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132 cairo_move_to(cr, poses[3][0], poses[3][1]);
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133 for(i = 0; i < 4; i++)
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134 cairo_line_to(cr, poses[i][0], poses[i][1]);
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135 }
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136 }