File: gui_sketch_result_list.c

package info (click to toggle)
crystal-facet-uml 1.27.3-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 13,216 kB
  • sloc: ansic: 86,801; xml: 2,235; cpp: 60; makefile: 54; sh: 7
file content (178 lines) | stat: -rw-r--r-- 7,288 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
/* File: gui_sketch_result_list.c; Copyright and License: see below */

#include "sketch_area/gui_sketch_result_list.h"
#include "util/geometry/geometry_rectangle.h"
#include "util/string/utf8stringbuf.h"
#include "trace.h"
#include "tslog.h"
#include <gdk/gdk.h>

static const int STANDARD_FONT_SIZE = 12;
static const char *STANDARD_FONT_FAMILY = "Sans";

void gui_sketch_result_list_init( gui_sketch_result_list_t *this_, gui_resources_t *resources )
{
    TRACE_BEGIN();
    assert( resources != NULL );

    DATA_SEARCH_RESULT_LIST_INIT( &((*this_).result_list), (*this_).result_list_buf );

    (*this_).visible = false;
    shape_int_rectangle_init( &((*this_).bounds), 0, 0, 0, 0 );

    /* init the pango font renering engine stuff: */
    (*this_).standard_font_description = pango_font_description_new ();
    pango_font_description_set_family_static ( (*this_).standard_font_description, STANDARD_FONT_FAMILY );
    pango_font_description_set_style ( (*this_).standard_font_description, PANGO_STYLE_NORMAL );
    pango_font_description_set_weight ( (*this_).standard_font_description, PANGO_WEIGHT_MEDIUM );
    pango_font_description_set_stretch ( (*this_).standard_font_description, PANGO_STRETCH_NORMAL );
    pango_font_description_set_size ( (*this_).standard_font_description, STANDARD_FONT_SIZE * PANGO_SCALE );

    gui_sketch_marker_init( &((*this_).sketch_marker) );
    (*this_).resources = resources;
    gui_resource_selector_init( &((*this_).selector), resources );

    TRACE_END();
}

void gui_sketch_result_list_destroy( gui_sketch_result_list_t *this_ )
{
    TRACE_BEGIN();

    gui_resource_selector_destroy( &((*this_).selector) );
    (*this_).resources = NULL;
    gui_sketch_marker_destroy( &((*this_).sketch_marker) );

    /* destroy the pango font renering engine stuff: */
    pango_font_description_free ( (*this_).standard_font_description );
    (*this_).standard_font_description = NULL;

    data_search_result_list_destroy( &((*this_).result_list) );

    shape_int_rectangle_destroy( &((*this_).bounds) );

    TRACE_END();
}

static const double BLACK_R = 0.0;
static const double BLACK_G = 0.0;
static const double BLACK_B = 0.0;
static const double BLACK_A = 1.0;
static const double GREY_R = 0.8;
static const double GREY_G = 0.8;
static const double GREY_B = 0.8;
static const double GREY_A = 1.0;

void gui_sketch_result_list_draw ( gui_sketch_result_list_t *this_, gui_marked_set_t *marker, cairo_t *cr )
{
    TRACE_BEGIN();
    assert( NULL != marker );
    assert( NULL != cr );

    if ( (*this_).visible )
    {
        PangoLayout *layout = pango_cairo_create_layout (cr);
        pango_layout_set_font_description ( layout, (*this_).standard_font_description );

        const int32_t left = shape_int_rectangle_get_left( &((*this_).bounds) );
        const int32_t top = shape_int_rectangle_get_top( &((*this_).bounds) );
        const uint32_t width = shape_int_rectangle_get_width( &((*this_).bounds) );
        const uint32_t height = shape_int_rectangle_get_height( &((*this_).bounds) );

        /* draw background */
        cairo_set_source_rgba( cr, GREY_R, GREY_G, GREY_B, GREY_A );
        cairo_rectangle ( cr, left, top, width, height );
        cairo_fill (cr);

        /* draw icons and text */
        const unsigned int count = data_search_result_list_get_length( &((*this_).result_list) );
        if ( count == 0 )
        {
            const GdkPixbuf *undef_icon = gui_resources_get_type_undef( (*this_).resources );
            cairo_set_source_rgba( cr, BLACK_R, BLACK_G, BLACK_B, BLACK_A );
            gui_sketch_result_list_private_draw_icon_and_label( this_, undef_icon, "n/a", 8, 8, layout, cr );
        }
        else
        {
            data_id_t highlighted = gui_marked_set_get_highlighted( marker );
            for ( unsigned int idx = 0; idx < count; idx ++ )
            {
                const data_search_result_t *result = data_search_result_list_get_const( &((*this_).result_list), idx );
                //const GdkPixbuf *undef_icon = gui_resources_get_type_undef( (*this_).resources );
                const int type = data_search_result_get_match_type( result );
                const data_table_t table = data_id_get_table( data_search_result_get_match_id_const( result ) );
                if ( data_id_equals( &highlighted, data_search_result_get_diagram_id_const( result ) ) )
                {
                    /* use same color as in pencil_size.inl */
                    cairo_set_source_rgba( cr, 0.0, 0.8, 0.6, 1.0 );
                }
                else
                {
                    cairo_set_source_rgba( cr, BLACK_R, BLACK_G, BLACK_B, BLACK_A );
                }
                const GdkPixbuf *icon = gui_resource_selector_get_icon ( &((*this_).selector), table, type );
                gui_sketch_result_list_private_draw_icon_and_label( this_,
                                                                    icon,
                                                                    data_search_result_get_match_name_const( result ),
                                                                    4,
                                                                    4+28*idx,
                                                                    layout,
                                                                    cr
                                                                  );
            }
        }

        g_object_unref(layout);
    }

    TRACE_END();
}

void gui_sketch_result_list_private_draw_icon_and_label( gui_sketch_result_list_t *this_,
                                                         const GdkPixbuf *icon_1,
                                                         const char *label_1,
                                                         int x,
                                                         int y,
                                                         PangoLayout *layout,
                                                         cairo_t *cr )
{
    TRACE_BEGIN();
    assert( NULL != cr );
    assert( NULL != layout );
    assert( NULL != icon_1 );
    assert( NULL != label_1 );

    /* determine coodinates */
    double icon_width = gdk_pixbuf_get_width ( icon_1 );
    double icon_height = gdk_pixbuf_get_height ( icon_1 );

    /* draw text first, use the pre-set color and font */
    cairo_move_to ( cr, x+icon_width, y );
    pango_layout_set_text ( layout, label_1, -1 );
    pango_cairo_show_layout ( cr, layout );

    /* draw the icon */
    gdk_cairo_set_source_pixbuf( cr, icon_1, x, y );
    cairo_rectangle ( cr, x, y, x+icon_width, y+icon_height );
    cairo_fill (cr);

    TRACE_END();
}


/*
Copyright 2018-2021 Andreas Warnke

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/