89 lines
3.3 KiB
C
89 lines
3.3 KiB
C
/* source/widgets/sgl_textline.c
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*
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* MIT License
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*
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* Copyright(c) 2023-present All contributors of SGL
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* Document reference link: https://sgl-docs.readthedocs.io
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <sgl_core.h>
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#include <sgl_draw.h>
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#include <sgl_math.h>
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#include <sgl_log.h>
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#include <sgl_mm.h>
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#include <sgl_cfgfix.h>
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#include <sgl_theme.h>
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#include "sgl_textline.h"
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static void sgl_textline_construct_cb(sgl_surf_t *surf, sgl_obj_t* obj, sgl_event_t *evt)
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{
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sgl_textline_t *textline = sgl_container_of(obj, sgl_textline_t, obj);
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sgl_area_t text_area;
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SGL_ASSERT(textline->font != NULL);
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if(evt->type == SGL_EVENT_DRAW_MAIN) {
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sgl_obj_set_height(obj, sgl_font_get_string_height(obj->coords.x2 - obj->coords.x1 + 1, textline->text, textline->font, textline->line_margin) + obj->radius * 2);
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sgl_area_clip(&obj->parent->area, &obj->coords, &obj->area);
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text_area.x1 = obj->coords.x1 + obj->radius;
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text_area.x2 = obj->coords.x2 - obj->radius;
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text_area.y1 = obj->coords.y1 + obj->radius;
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text_area.y2 = obj->coords.y2 - obj->radius;
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if (textline->bg_flag) {
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sgl_draw_fill_rect(surf, &obj->area, &obj->coords, obj->radius, textline->bg_color, textline->alpha);
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}
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sgl_draw_string_mult_line(surf, &text_area, obj->coords.x1 + obj->radius, obj->coords.y1 + obj->radius, textline->text, textline->color, textline->alpha, textline->font, textline->line_margin);
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}
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}
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/**
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* @brief create a textline object
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* @param parent parent of the textline
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* @return pointer to the textline object
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*/
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sgl_obj_t* sgl_textline_create(sgl_obj_t* parent)
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{
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sgl_textline_t *textline = sgl_malloc(sizeof(sgl_textline_t));
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if(textline == NULL) {
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SGL_LOG_ERROR("sgl_textline_create: malloc failed");
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return NULL;
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}
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/* set object all member to zero */
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memset(textline, 0, sizeof(sgl_textline_t));
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sgl_obj_t *obj = &textline->obj;
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sgl_obj_init(&textline->obj, parent);
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obj->construct_fn = sgl_textline_construct_cb;
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textline->alpha = SGL_THEME_ALPHA;
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textline->bg_flag = true;
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textline->bg_color = SGL_THEME_COLOR;
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textline->color = SGL_THEME_TEXT_COLOR;
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textline->line_margin = 1;
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textline->text = "textline";
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textline->font = sgl_get_system_font();
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return obj;
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}
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