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/* -*- c-basic-offset:2; tab-width:2; indent-tabs-mode:nil -*- */
#include <stdio.h>
#include <stdlib.h>
#include <pobl/bl_debug.h>
#include <pobl/bl_mem.h>
#include "ui_sb_view.h"
#include "ui_window.h"
#define TOP_MARGIN 14
#define BOTTOM_MARGIN 14
#define HEIGHT_MARGIN (TOP_MARGIN + BOTTOM_MARGIN)
#define WIDTH 13
typedef struct simple_sb_view {
ui_sb_view_t view;
ui_color_t black;
ui_color_t white;
ui_color_t gray;
int8_t dpr;
int8_t is_transparent;
} simple_sb_view_t;
/* --- static variables --- */
static char *arrow_up_src[] = {
" #",
" -----------#",
" -----+-----#",
" -----#-----#",
" ----+#+----#",
" ----###----#",
" ---+###+---#",
" ---#####---#",
" --+#####+--#",
" --#######--#",
" -+#######+-#",
" -----------#",
" -----------#",
"#############"
};
static char *arrow_down_src[] = {
" #",
" -----------#",
" -----------#",
" -+#######+-#",
" --#######--#",
" --+#####+--#",
" ---#####---#",
" ---+###+---#",
" ----###----#",
" ----+#+----#",
" -----#-----#",
" -----+-----#",
" -----------#",
"#############"
};
static char *arrow_up_dent_src[] = {
" #",
" -----------#",
" ----- -----#",
" ----- -----#",
" ---- ----#",
" ---- ----#",
" --- ---#",
" --- ---#",
" -- --#",
" -- --#",
" - -#",
" -----------#",
" -----------#",
"#############"
};
static char *arrow_down_dent_src[] = {
" #",
" -----------#",
" -----------#",
" - -#",
" -- --#",
" -- --#",
" --- ---#",
" --- ---#",
" ---- ----#",
" ---- ----#",
" ----- -----#",
" ----- -----#",
" -----------#",
"#############"
};
/* --- static functions --- */
static size_t count_char(char c, char *str) {
char *p;
p = str;
while (*p == c) {
p++;
}
return p - str;
}
static int draw_icon(ui_sb_view_t *view, int y, char **data, unsigned int width,
unsigned int height) {
simple_sb_view_t *simple_sb = (simple_sb_view_t*)view;
int dpr = simple_sb->dpr;
int x_off;
int y_off;
if (simple_sb->is_transparent) {
ui_window_clear(view->win, 0, y, width, height);
}
for (y_off = 0; y_off < height; y_off++) {
for (x_off = 0; x_off < width;) {
size_t count;
count = count_char(data[y_off][x_off], data[y_off] + x_off);
switch(data[y_off][x_off]) {
case '-':
if (!simple_sb->is_transparent) {
ui_window_fill(view->win, x_off * dpr,
y + y_off * dpr, count * dpr, 1 * dpr);
}
break;
case '#':
ui_window_fill_with(view->win, &simple_sb->black,
x_off * dpr, y + y_off * dpr,
count * dpr, 1 * dpr);
break;
case '+':
ui_window_fill_with(view->win, &simple_sb->gray,
x_off * dpr, y + y_off * dpr,
count * dpr, 1 * dpr);
break;
default:
ui_window_fill_with(view->win, &simple_sb->white,
x_off * dpr, y + y_off * dpr,
count * dpr, 1 * dpr);
break;
}
x_off += count;
}
}
return 1;
}
static void get_geometry_hints(ui_sb_view_t *view, unsigned int *width, unsigned int *top_margin,
unsigned int *bottom_margin, int *up_button_y,
unsigned int *up_button_height, int *down_button_y,
unsigned int *down_button_height) {
int dpr = ((simple_sb_view_t*)view)->dpr;
*width = WIDTH * dpr;
*top_margin = TOP_MARGIN * dpr;
*bottom_margin = BOTTOM_MARGIN * dpr;
*up_button_y = 0;
*up_button_height = TOP_MARGIN * dpr;
*down_button_y = -BOTTOM_MARGIN * dpr;
*down_button_height = BOTTOM_MARGIN * dpr;
}
static void get_default_color(ui_sb_view_t *view, char **fg_color, char **bg_color) {
*fg_color = "gray";
*bg_color = "lightgray";
}
static void realized(ui_sb_view_t *view, Display *display, int screen, Window window, GC gc,
unsigned int height) {
simple_sb_view_t *simple_sb;
simple_sb = (simple_sb_view_t*)view;
view->display = display;
view->screen = screen;
view->window = window;
view->gc = gc;
view->height = height;
ui_load_rgb_xcolor(view->win->disp, &simple_sb->black, 0x00, 0x00, 0x00, 0xff);
ui_load_rgb_xcolor(view->win->disp, &simple_sb->gray, 0x50, 0x50, 0x50, 0xff);
ui_load_rgb_xcolor(view->win->disp, &simple_sb->white, 0xff, 0xff, 0xff, 0xff);
}
static void resized(ui_sb_view_t *view, Window window, unsigned int height) {
view->window = window;
view->height = height;
}
static void destroy(ui_sb_view_t *view) { free(view); }
static void draw_arrow_up_icon(ui_sb_view_t *view, int is_dent) {
draw_icon(view, 0, is_dent ? arrow_up_dent_src : arrow_up_src,
WIDTH, TOP_MARGIN);
}
static void draw_arrow_down_icon(ui_sb_view_t *view, int is_dent) {
draw_icon(view, view->height - BOTTOM_MARGIN * ((simple_sb_view_t*)view)->dpr,
is_dent ? arrow_down_dent_src : arrow_down_src,
WIDTH, BOTTOM_MARGIN);
}
static void draw_scrollbar(ui_sb_view_t *view, int bar_top_y, unsigned int bar_height) {
simple_sb_view_t *simple_sb = (simple_sb_view_t*)view;
int dpr = simple_sb->dpr;
/* drawing bar */
if (simple_sb->is_transparent) {
ui_window_clear(view->win, 1 * dpr, bar_top_y, (WIDTH - 1) * dpr, bar_height);
} else {
ui_window_fill(view->win, 1 * dpr, bar_top_y, (WIDTH - 1) * dpr, bar_height);
}
/* left side shade */
ui_window_fill_with(view->win, &simple_sb->white, 0, bar_top_y, 1 * dpr, bar_height);
/* up side shade */
ui_window_fill_with(view->win, &simple_sb->white, 0, bar_top_y, WIDTH * dpr, 1);
/* right side shade */
ui_window_fill_with(view->win, &simple_sb->black, (WIDTH - 1) * dpr, bar_top_y,
1 * dpr, bar_height);
/* down side shade */
ui_window_fill_with(view->win, &simple_sb->black, 1 * dpr, bar_top_y + bar_height - 1,
(WIDTH - 1) * dpr, 1);
}
static void draw_background(ui_sb_view_t *view, int y, unsigned int height) {
ui_window_clear(view->win, 0, y, WIDTH * ((simple_sb_view_t*)view)->dpr, height);
}
static void draw_up_button(ui_sb_view_t *view, int is_pressed) {
draw_arrow_up_icon(view, is_pressed);
}
static void draw_down_button(ui_sb_view_t *view, int is_pressed) {
draw_arrow_down_icon(view, is_pressed);
}
/* --- global functions --- */
ui_sb_view_t *ui_simple_sb_view_new(int dpr) {
simple_sb_view_t *simple_sb;
if ((simple_sb = calloc(1, sizeof(simple_sb_view_t))) == NULL) {
return NULL;
}
simple_sb->view.version = 1;
simple_sb->view.get_geometry_hints = get_geometry_hints;
simple_sb->view.get_default_color = get_default_color;
simple_sb->view.realized = realized;
simple_sb->view.resized = resized;
simple_sb->view.destroy = destroy;
simple_sb->view.draw_scrollbar = draw_scrollbar;
simple_sb->view.draw_background = draw_background;
simple_sb->view.draw_up_button = draw_up_button;
simple_sb->view.draw_down_button = draw_down_button;
simple_sb->dpr = dpr;
return &simple_sb->view;
}
ui_sb_view_t *ui_simple_transparent_sb_view_new(int dpr) {
simple_sb_view_t *simple_sb;
if ((simple_sb = (simple_sb_view_t*)ui_simple_sb_view_new(dpr)) == NULL) {
return NULL;
}
simple_sb->is_transparent = 1;
return &simple_sb->view;
}
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