124 lines
4.2 KiB
C
124 lines
4.2 KiB
C
/* source/widgets/sgl_bar.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_theme.h>
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#include <sgl_cfgfix.h>
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#include <string.h>
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#include "sgl_bar.h"
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static void sgl_bar_construct_cb(sgl_surf_t *surf, sgl_obj_t* obj, sgl_event_t *evt)
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{
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sgl_bar_t *bar = sgl_container_of(obj, sgl_bar_t, obj);
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sgl_draw_rect_t desc = {
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.alpha = bar->alpha,
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.border = obj->border,
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.border_color = bar->border_color,
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.pixmap = bar->pixmap,
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.color = bar->track_color,
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.radius = obj->radius,
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};
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sgl_area_t knob = {
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.x1 = obj->coords.x1 + obj->border,
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.x2 = obj->coords.x2 - obj->border,
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.y1 = obj->coords.y1 + obj->border,
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.y2 = obj->coords.y2 - obj->border,
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};
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if(evt->type == SGL_EVENT_DRAW_MAIN) {
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if(bar->direct == SGL_DIRECT_HORIZONTAL) {
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knob.x2 = obj->coords.x1 + (obj->coords.x2 - obj->coords.x1) * bar->value / 100 - obj->border;
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}
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else {
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knob.y1 = obj->coords.y2 - (obj->coords.y2 - obj->coords.y1) * bar->value / 100 + obj->border;
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}
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/* set knob area */
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sgl_area_selfclip(&knob, &obj->area);
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sgl_draw_rect(surf, &obj->area, &obj->coords, &desc);
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sgl_draw_fill_rect_with_border(surf, &knob, &obj->coords, obj->radius, bar->fill_color, bar->border_color, obj->border, bar->alpha);
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}
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else if(evt->type == SGL_EVENT_PRESSED ||
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evt->type == SGL_EVENT_MOVE_DOWN || evt->type == SGL_EVENT_MOVE_UP || evt->type == SGL_EVENT_MOVE_LEFT || evt->type == SGL_EVENT_MOVE_RIGHT
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) {
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if(bar->direct == SGL_DIRECT_HORIZONTAL) {
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bar->value = (evt->pos.x - obj->coords.x1) * 100 / (obj->coords.x2 - obj->coords.x1);
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}
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else {
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bar->value = (obj->coords.y2 - evt->pos.y) * 100 / (obj->coords.y2 - obj->coords.y1);
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}
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if(evt->type == SGL_EVENT_PRESSED) {
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sgl_obj_size_zoom(obj, 2);
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}
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sgl_obj_set_dirty(obj);
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}
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else if(evt->type == SGL_EVENT_RELEASED) {
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sgl_obj_size_zoom(obj, -2);
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sgl_obj_set_dirty(obj);
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}
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}
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/**
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* @brief create a bar object
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* @param parent parent object of the bar
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* @return bar object
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*/
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sgl_obj_t* sgl_bar_create(sgl_obj_t* parent)
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{
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sgl_bar_t *bar = sgl_malloc(sizeof(sgl_bar_t));
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if(bar == NULL) {
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SGL_LOG_ERROR("sgl_bar_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(bar, 0, sizeof(sgl_bar_t));
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sgl_obj_t *obj = &bar->obj;
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sgl_obj_init(&bar->obj, parent);
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sgl_obj_set_clickable(obj);
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sgl_obj_set_movable(obj);
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obj->construct_fn = sgl_bar_construct_cb;
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sgl_obj_set_border_width(obj, SGL_THEME_BORDER_WIDTH);
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bar->direct = SGL_DIRECT_HORIZONTAL;
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bar->alpha = SGL_THEME_ALPHA;
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bar->track_color = SGL_THEME_COLOR;
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bar->border_color = SGL_THEME_BORDER_COLOR;
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bar->fill_color = SGL_THEME_BG_COLOR;
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bar->alpha = SGL_THEME_ALPHA;
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return obj;
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}
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