mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-11-16 23:50:39 +02:00
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/*
|
|
* gui/progress.c - Progress bar
|
|
*
|
|
* Written 2016 by Werner Almesberger
|
|
* Copyright 2016 by Werner Almesberger
|
|
*
|
|
* This program 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
/*
|
|
* Resources:
|
|
*
|
|
* http://zetcode.com/gfx/cairo/cairobackends/
|
|
* https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
#include <cairo/cairo.h>
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "gui/common.h"
|
|
|
|
|
|
#define PROGRESS_BAR_HEIGHT 10
|
|
|
|
|
|
static void progress_draw_event(GtkWidget *widget, cairo_t *cr,
|
|
gpointer user_data)
|
|
{
|
|
GtkAllocation alloc;
|
|
struct gui_ctx *ctx = user_data;
|
|
unsigned w, x;
|
|
|
|
x = ctx->progress >> ctx->progress_scale;
|
|
if (!x) {
|
|
/* @@@ needed ? Gtk seems to always clear the the surface. */
|
|
cairo_set_source_rgb(cr, 1, 1, 1);
|
|
cairo_paint(cr);
|
|
}
|
|
|
|
gtk_widget_get_allocation(ctx->da, &alloc);
|
|
w = ctx->hist_size >> ctx->progress_scale;
|
|
|
|
cairo_save(cr);
|
|
cairo_translate(cr,
|
|
(alloc.width - w) / 2, (alloc.height - PROGRESS_BAR_HEIGHT) / 2);
|
|
|
|
cairo_set_source_rgb(cr, 0, 0.7, 0);
|
|
cairo_set_line_width(cr, 0);
|
|
cairo_rectangle(cr, 0, 0, x, PROGRESS_BAR_HEIGHT);
|
|
cairo_fill(cr);
|
|
|
|
cairo_set_source_rgb(cr, 0, 0, 0);
|
|
cairo_set_line_width(cr, 2);
|
|
cairo_rectangle(cr, 0, 0, w, PROGRESS_BAR_HEIGHT);
|
|
cairo_stroke(cr);
|
|
|
|
cairo_restore(cr);
|
|
}
|
|
|
|
|
|
void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window)
|
|
{
|
|
GtkAllocation alloc;
|
|
|
|
gtk_widget_get_allocation(ctx->da, &alloc);
|
|
|
|
ctx->progress_scale = 0;
|
|
while ((ctx->hist_size >> ctx->progress_scale) > alloc.width)
|
|
ctx->progress_scale++;
|
|
ctx->progress = 0;
|
|
|
|
g_signal_connect(G_OBJECT(ctx->da), "draw",
|
|
G_CALLBACK(progress_draw_event), ctx);
|
|
|
|
redraw(ctx);
|
|
gtk_main_iteration_do(0);
|
|
}
|
|
|
|
|
|
void progress_update(struct gui_ctx *ctx)
|
|
{
|
|
unsigned mask = (1 << ctx->progress_scale) - 1;
|
|
|
|
ctx->progress++;
|
|
if ((ctx->progress & mask) != mask)
|
|
return;
|
|
|
|
redraw(ctx);
|
|
gtk_main_iteration_do(0);
|
|
}
|