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/*
* Copyright (C) 2021 P. J. McDermott
*
* This file is part of Maze Fight
*
* Maze Fight is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Maze Fight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Maze Fight. If not, see <http://www.gnu.org/licenses/>.
*/
#include <SDL.h>
#include "errno.h"
#include <stdlib.h>
#include <string.h>
#include "../tk.h"
#include "style.h"
#include "widget.h"
struct mftk_box {
struct mftk_widget parent;
int container_w;
int container_h;
int padding;
int border;
struct mftk_widget *child;
int child_x;
int child_y;
};
static void
_mftk_box_layout(struct mftk_widget *w)
{
struct mftk_box *b = (struct mftk_box *) w;
mftk_widget_layout(b->child);
if (w->w == 0) {
w->w = b->child->w + b->padding * 2 + b->border * 2;
}
if (w->h == 0) {
w->h = b->child->h + b->padding * 2 + b->border * 2;
}
b->child_x = (b->container_w - w->w) / 2 + b->padding + b->border;
b->child_y = (b->container_h - w->h) / 2 + b->padding + b->border;
}
static void
_mftk_box_index(struct mftk_widget *w, struct mftk_window *win)
{
struct mftk_box *b = (struct mftk_box *) w;
mftk_widget_index(b->child, win);
}
static int
_mftk_box_mouse_event(struct mftk_widget *w, SDL_Event *e, int x, int y)
{
struct mftk_box *b = (struct mftk_box *) w;
SDL_Point p;
SDL_Rect rect;
switch (e->type) {
case SDL_MOUSEBUTTONUP:
p.x = e->button.x;
p.y = e->button.y;
rect.x = x + b->child_x;
rect.y = y + b->child_y;
rect.w = b->child->w;
rect.h = b->child->h;
if (SDL_PointInRect(&p, &rect) == SDL_TRUE) {
return mftk_widget_mouse_event(b->child, e,
rect.x, rect.y);
}
break;
default:
break;
}
return 0;
}
static int
_mftk_box_render(struct mftk_widget *w, SDL_Renderer *renderer, int x, int y)
{
struct mftk_box *b = (struct mftk_box *) w;
SDL_Rect outer;
SDL_Rect inner;
SDL_Rect edge;
outer.x = x + b->child_x - b->padding - b->border;
outer.y = y + b->child_y - b->padding - b->border;
outer.w = w->w;
outer.h = w->h;
inner.x = x + b->child_x - b->padding;
inner.y = y + b->child_y - b->padding;
inner.w = w->w - b->border * 2;
inner.h = w->h - b->border * 2;
/* Border */
if (SDL_SetRenderDrawColor(renderer,
MFTK_COLOR_FBDR_R, MFTK_COLOR_FBDR_G,
MFTK_COLOR_FBDR_B, MFTK_COLOR_FBDR_A) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Couldn't render widget: %s",
SDL_GetError());
return -1;
}
#define _mftk_edge(X, Y, W, H) \
edge.x = X, edge.y = Y, edge.w = W, edge.h = H; \
if (SDL_RenderFillRect(renderer, &edge) < 0) { \
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, \
"Couldn't render widget: %s", \
SDL_GetError()); \
return -1; \
}
_mftk_edge(outer.x , outer.y , outer.w , b->border);
_mftk_edge(outer.x , inner.y + inner.h, outer.w , b->border);
_mftk_edge(outer.x , outer.y , b->border, outer.h );
_mftk_edge(inner.x + inner.w, outer.y , b->border, outer.h );
#undef _mftk_edge
/* Background */
if (SDL_SetRenderDrawColor(renderer,
MFTK_COLOR_FORM_R, MFTK_COLOR_FORM_G,
MFTK_COLOR_FORM_B, MFTK_COLOR_FORM_A) < 0 ||
SDL_RenderFillRect(renderer, &inner) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Couldn't render widget: %s",
SDL_GetError());
return -1;
}
/* Child widget */
if (mftk_widget_render(b->child, renderer,
x + b->child_x, y + b->child_y) < 0) {
return -1;
}
return 0;
}
static void
_mftk_box_destroy(struct mftk_widget *w)
{
struct mftk_box *b = (struct mftk_box *) w;
mftk_widget_destroy(&b->child);
}
struct mftk_widget *
mftk_box_new(int container_w, int container_h, int own_w, int own_h,
int padding, int border, struct mftk_widget *child)
{
struct mftk_widget *w;
struct mftk_box *b;
mftk_widget_init_container(w, b, box);
b->container_w = container_w;
b->container_h = container_h;
w->w = own_w;
w->h = own_h;
b->padding = padding;
b->border = border;
b->child = child;
child->container = w;
return w;
}
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