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eeshow/gui/gui.c: move progress bar handling to progress.c

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This commit is contained in:
Werner Almesberger 2016-08-18 02:53:39 -03:00
parent f981ec1a63
commit 6975c2b6d5
4 changed files with 108 additions and 74 deletions
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1
eeshow/Makefile
View File

@ -15,6 +15,7 @@ OBJS = main.o \
kicad/sch-parse.o kicad/sch-render.o kicad/lib-parse.o \
kicad/lib-render.o kicad/dwg.o kicad/delta.o \
gui/gui.o gui/over.o gui/style.o gui/aoi.o gui/fmt-pango.o gui/input.o \
gui/progress.o \
file/file.o file/git-util.o file/git-file.o file/git-hist.o \
gfx/style.o gfx/fig.o gfx/record.o gfx/cro.o gfx/diff.o gfx/gfx.o \
gfx/text.o gfx/misc.o \

7
eeshow/gui/common.h
View File

@ -99,4 +99,11 @@ struct gui_ctx {
unsigned progress_scale;/* right-shift by this value */
};
void redraw(const struct gui_ctx *ctx);
void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window);
void progress_update(struct gui_ctx *ctx);
#endif /* !GUI_COMMON_H */

75
eeshow/gui/gui.c
View File

@ -51,7 +51,7 @@
/* ----- Helper functions -------------------------------------------------- */
static void redraw(const struct gui_ctx *ctx)
void redraw(const struct gui_ctx *ctx)
{
gtk_widget_queue_draw(ctx->da);
}
@ -998,79 +998,6 @@ static bool hover_glabel(void *user, bool on)
}
/* ----- Progress bar ------------------------------------------------------ */
#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);
}
static 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);
}
static 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);
}
/* ----- Initialization ---------------------------------------------------- */

99
eeshow/gui/progress.c Normal file
View File

@ -0,0 +1,99 @@
/*
* 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);
}