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eda-tools/eeshow/gui.c

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2016-08-03 13:38:57 +03:00
/*
* gui.c - GUI for eeshow
*
* 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
*/
#define _GNU_SOURCE /* for asprintf */
#include <stddef.h>
#include <stdbool.h>
#include <stdlib.h>
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#include <stdio.h>
#include <string.h>
#include <math.h>
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#include <cairo/cairo.h>
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#include <gtk/gtk.h>
#include "util.h"
#include "diag.h"
#include "style.h"
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#include "cro.h"
#include "gfx.h"
#include "git-hist.h"
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#include "sch.h"
#include "delta.h"
#include "diff.h"
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#include "dwg.h"
#include "gui-aoi.h"
#include "gui-style.h"
#include "gui-over.h"
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#include "gui.h"
struct gui_ctx;
struct gui_sheet {
const struct sheet *sch;
struct gui_ctx *ctx; /* back link */
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struct cro_ctx *gfx_ctx;
int w, h; /* in eeschema coordinates */
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int xmin, ymin;
bool rendered; /* 0 if still have to render it */
struct overlay *over; /* current overlay */
struct aoi *aois; /* areas of interest; in schematics coord */
struct gui_sheet *next;
};
struct gui_hist {
struct gui_ctx *ctx; /* back link */
struct hist *vcs_hist; /* NULL if not from repo */
struct overlay *over; /* current overlay */
struct gui_sheet *sheets; /* NULL if failed */
unsigned age; /* 0-based; uncommitted or HEAD = 0 */
/* caching support */
void **oids; /* file object IDs */
int libs_open;
struct sch_ctx sch_ctx;
struct lib lib; /* combined library */
struct gui_hist *next;
};
struct gui_ctx {
GtkWidget *da;
int curr_x; /* last on-screen mouse position */
int curr_y;
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unsigned zoom; /* scale by 1.0 / (1 << zoom) */
int x, y; /* center, in eeschema coordinates */
bool panning;
int pan_x, pan_y;
struct gui_hist *hist; /* revision history; NULL if none */
struct hist *vcs_hist; /* underlying VCS data; NULL if none */
bool showing_history;
enum selecting {
sel_only, /* select the only revision we show */
sel_new, /* select the new revision */
sel_old, /* select the old revision */
} selecting;
struct overlay *sheet_overlays;
struct overlay *hist_overlays;
struct overlay *pop_overlays; /* pop-up dialogs */
int pop_x, pop_y;
struct aoi *aois; /* areas of interest; in canvas coord */
struct gui_sheet delta_a;
struct gui_sheet delta_b;
struct gui_sheet delta_ab;
struct gui_sheet *curr_sheet;
/* current sheet, always on new_hist */
struct gui_hist *new_hist;
struct gui_hist *old_hist; /* NULL if not comparing */
/* progress bar */
unsigned hist_size; /* total number of revisions */
unsigned progress; /* progress counter */
unsigned progress_scale;/* right-shift by this value */
};
/* ----- Helper functions -------------------------------------------------- */
static void redraw(const struct gui_ctx *ctx)
{
gtk_widget_queue_draw(ctx->da);
}
static struct gui_sheet *find_corresponding_sheet(struct gui_sheet *pick_from,
struct gui_sheet *ref_in, const struct gui_sheet *ref)
{
struct gui_sheet *sheet, *plan_b;
const char *title = ref->sch->title;
/* plan A: try to find sheet with same name */
if (title)
for (sheet = pick_from; sheet; sheet = sheet->next)
if (sheet->sch->title &&
!strcmp(title, sheet->sch->title))
return sheet;
/* plan B: use sheet in same position in sheet sequence */
plan_b = ref_in;
for (sheet = pick_from; sheet; sheet = sheet->next) {
if (plan_b == ref)
return sheet;
plan_b = plan_b->next;
}
/* plan C: just go to the top */
return pick_from;
}
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/* ----- Rendering --------------------------------------------------------- */
#define VCS_OVERLAYS_X 5
#define VCS_OVERLAYS_Y 5
#define SHEET_OVERLAYS_X -10
#define SHEET_OVERLAYS_Y 10
static void hack(const struct gui_ctx *ctx, cairo_t *cr)
{
const struct gui_sheet *new = ctx->curr_sheet;
const struct gui_sheet *old = find_corresponding_sheet(
ctx->old_hist->sheets, ctx->new_hist->sheets, ctx->curr_sheet);
diff_to_canvas(cr, ctx->x, ctx->y, 1.0 / (1 << ctx->zoom),
old->gfx_ctx, new->gfx_ctx);
}
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static gboolean on_draw_event(GtkWidget *widget, cairo_t *cr,
gpointer user_data)
{
const struct gui_ctx *ctx = user_data;
const struct gui_sheet *sheet = ctx->curr_sheet;
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GtkAllocation alloc;
float f = 1.0 / (1 << ctx->zoom);
int x, y;
gtk_widget_get_allocation(ctx->da, &alloc);
x = -(sheet->xmin + ctx->x) * f + alloc.width / 2;
y = -(sheet->ymin + ctx->y) * f + alloc.height / 2;
cro_canvas_prepare(cr);
if (!ctx->old_hist) {
cro_canvas_draw(sheet->gfx_ctx, cr, x, y, f);
} else {
#if 0
/* @@@ fix geometry later */
cro_canvas_draw(ctx->delta_ab.gfx_ctx, cr, x, y, f);
cro_canvas_draw(ctx->delta_a.gfx_ctx, cr, x, y, f);
cro_canvas_draw(ctx->delta_b.gfx_ctx, cr, x, y, f);
#endif
hack(ctx, cr);
}
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overlay_draw_all(ctx->sheet_overlays, cr,
SHEET_OVERLAYS_X, SHEET_OVERLAYS_Y);
overlay_draw_all(ctx->hist_overlays, cr,
VCS_OVERLAYS_X, VCS_OVERLAYS_Y);
overlay_draw_all(ctx->pop_overlays, cr, ctx->pop_x, ctx->pop_y);
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return FALSE;
}
static void render_sheet(struct gui_sheet *sheet)
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{
char *argv[] = { "gui", NULL };
gfx_init(&cro_canvas_ops, 1, argv);
sch_render(sheet->sch);
cro_canvas_end(gfx_ctx,
&sheet->w, &sheet->h, &sheet->xmin, &sheet->ymin);
sheet->gfx_ctx = gfx_ctx;
sheet->rendered = 1;
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// gfx_end();
}
/* @@@ not nice to have this so far out */
static void mark_aois(struct gui_ctx *ctx, struct gui_sheet *sheet);
static void render_delta(struct gui_ctx *ctx)
{
#if 0
/* @@@ needs updating for curr/last vs. new/old */
struct sheet *sch_a, *sch_b, *sch_ab;
const struct gui_sheet *a = ctx->curr_sheet;
const struct gui_sheet *b = find_corresponding_sheet(
ctx->last_hist->sheets, ctx->curr_hist->sheets, ctx->curr_sheet);
sch_a = alloc_type(struct sheet);
sch_b = alloc_type(struct sheet);
sch_ab = alloc_type(struct sheet);
delta(a->sch, b->sch, sch_a, sch_b, sch_ab);
ctx->delta_a.sch = sch_a,
ctx->delta_b.sch = sch_b,
ctx->delta_ab.sch = sch_ab,
render_sheet(&ctx->delta_a);
render_sheet(&ctx->delta_b);
render_sheet(&ctx->delta_ab);
cro_color_override(ctx->delta_ab.gfx_ctx, COLOR_LIGHT_GREY);
cro_color_override(ctx->delta_a.gfx_ctx, COLOR_RED);
cro_color_override(ctx->delta_b.gfx_ctx, COLOR_GREEN2);
// @@@ clean up when leaving sheet
#endif
struct gui_sheet *b = find_corresponding_sheet(
ctx->old_hist->sheets, ctx->new_hist->sheets, ctx->curr_sheet);
if (!b->rendered) {
render_sheet(b);
mark_aois(ctx, b);
}
}
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/* ----- Tools ------------------------------------------------------------- */
static void canvas_coord(const struct gui_ctx *ctx,
int ex, int ey, int *x, int *y)
{
GtkAllocation alloc;
int sx, sy;
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gtk_widget_get_allocation(ctx->da, &alloc);
sx = ex - alloc.width / 2;
sy = ey - alloc.height / 2;
*x = (sx << ctx->zoom) + ctx->x;
*y = (sy << ctx->zoom) + ctx->y;
}
static void eeschema_coord(const struct gui_ctx *ctx,
int x, int y, int *rx, int *ry)
{
GtkAllocation alloc;
gtk_widget_get_allocation(ctx->da, &alloc);
*rx = ((x - ctx->x) >> ctx->zoom) + alloc.width / 2;
*ry = ((y - ctx->y) >> ctx->zoom) + alloc.height / 2;
}
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/* ----- Panning ----------------------------------------------------------- */
static void pan_begin(struct gui_ctx *ctx, int x, int y)
{
if (ctx->panning)
return;
ctx->panning = 1;
ctx->pan_x = x;
ctx->pan_y = y;
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}
static void pan_update(struct gui_ctx *ctx, int x, int y)
{
if (!ctx->panning)
return;
ctx->x -= (x - ctx->pan_x) << ctx->zoom;
ctx->y -= (y - ctx->pan_y) << ctx->zoom;
ctx->pan_x = x;
ctx->pan_y = y;
redraw(ctx);
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}
static void pan_end(struct gui_ctx *ctx, int x, int y)
{
pan_update(ctx, x, y);
ctx->panning = 0;
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}
/* ----- Zoom -------------------------------------------------------------- */
static void zoom_in(struct gui_ctx *ctx, int x, int y)
{
if (ctx->zoom == 0)
return;
ctx->zoom--;
ctx->x = (ctx->x + x) / 2;
ctx->y = (ctx->y + y) / 2;
redraw(ctx);
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}
static void zoom_out(struct gui_ctx *ctx, int x, int y)
{
if (ctx->curr_sheet->w >> ctx->zoom <= 16)
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return;
ctx->zoom++;
ctx->x = 2 * ctx->x - x;
ctx->y = 2 * ctx->y - y;
redraw(ctx);
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}
static void curr_sheet_size(struct gui_ctx *ctx, int *w, int *h)
{
const struct gui_sheet *sheet = ctx->curr_sheet;
int ax1, ay1, bx1, by1;
if (!ctx->old_hist) {
*w = sheet->w;
*h = sheet->h;
} else {
const struct gui_sheet *old =
find_corresponding_sheet(ctx->old_hist->sheets,
ctx->new_hist->sheets, sheet);
/*
* We're only interested in differences here, so no need for
* the usual "-1" in x1 = x0 + w - 1
*/
ax1 = sheet->xmin + sheet->w;
ay1 = sheet->ymin + sheet->h;
bx1 = old->xmin + old->w;
by1 = old->ymin + old->h;
*w = (ax1 > bx1 ? ax1 : bx1) -
(sheet->xmin < old->xmin ? sheet->xmin : old->xmin);
*h = (ay1 > by1 ? ay1 : by1) -
(sheet->ymin < old->ymin ? sheet->ymin : old->ymin);
}
}
static void zoom_to_extents(struct gui_ctx *ctx)
{
GtkAllocation alloc;
int w, h;
curr_sheet_size(ctx, &w, &h);
ctx->x = w / 2;
ctx->y = h / 2;
gtk_widget_get_allocation(ctx->da, &alloc);
ctx->zoom = 0;
while (w >> ctx->zoom > alloc.width || h >> ctx->zoom > alloc.height)
ctx->zoom++;
redraw(ctx);
}
/* ----- Need this for jumping around -------------------------------------- */
static void go_to_sheet(struct gui_ctx *ctx, struct gui_sheet *sheet);
static bool go_up_sheet(struct gui_ctx *ctx);
/* ----- Revision history -------------------------------------------------- */
static void do_revision_overlays(struct gui_ctx *ctx);
static void hide_history(struct gui_ctx *ctx)
{
ctx->showing_history = 0;
do_revision_overlays(ctx);
redraw(ctx);
}
#define RGBA(r, g, b, a) ((struct color) { (r), (g), (b), (a) })
#define COLOR(color) RGBA(color)
static void set_history_style(struct gui_hist *h, bool current)
{
struct gui_ctx *ctx = h->ctx;
struct overlay_style style = overlay_style_dense;
const struct gui_hist *new = ctx->new_hist;
const struct gui_hist *old = ctx->old_hist;
/* this is in addition to showing detailed content */
if (current)
style.width++;
switch (ctx->selecting) {
case sel_only:
style.frame = COLOR(FRAME_SEL_ONLY);
break;
case sel_old:
style.frame = COLOR(FRAME_SEL_OLD);
break;
case sel_new:
style.frame = COLOR(FRAME_SEL_NEW);
break;
default:
abort();
}
if (ctx->new_hist == h || ctx->old_hist == h) {
style.width++;
style.font = BOLD_FONT;
}
if (ctx->old_hist) {
if (h == new)
style.bg = COLOR(BG_NEW);
if (h == old)
style.bg = COLOR(BG_OLD);
}
overlay_style(h->over, &style);
}
static bool hover_history(void *user, bool on)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
char *s;
if (on) {
s = vcs_git_long_for_pango(h->vcs_hist);
overlay_text_raw(h->over, s);
free(s);
} else {
overlay_text(h->over, "<small>%s</small>",
vcs_git_summary(h->vcs_hist));
}
set_history_style(h, on);
redraw(ctx);
return 1;
}
static void click_history(void *user)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
struct gui_sheet *sheet;
hide_history(ctx);
if (!h->sheets)
return;
sheet = find_corresponding_sheet(h->sheets,
ctx->new_hist->sheets, ctx->curr_sheet);
switch (ctx->selecting) {
case sel_only:
ctx->old_hist = ctx->new_hist;
ctx->new_hist = h;
break;
case sel_new:
ctx->new_hist = h;
break;
case sel_old:
ctx->old_hist = h;
break;
default:
abort();
}
if (ctx->new_hist->age > ctx->old_hist->age) {
swap(ctx->new_hist, ctx->old_hist);
if (ctx->selecting == sel_old)
go_to_sheet(ctx, sheet);
else
render_delta(ctx);
} else {
if (ctx->selecting != sel_old)
go_to_sheet(ctx, sheet);
else
render_delta(ctx);
}
if (ctx->old_hist == ctx->new_hist)
ctx->old_hist = NULL;
do_revision_overlays(ctx);
redraw(ctx);
}
static void show_history(struct gui_ctx *ctx, enum selecting sel)
{
struct gui_hist *h = ctx->hist;
ctx->showing_history = 1;
ctx->selecting = sel;
overlay_remove_all(&ctx->hist_overlays);
for (h = ctx->hist; h; h = h->next) {
h->over = overlay_add(&ctx->hist_overlays, &ctx->aois,
hover_history, click_history, h);
hover_history(h, 0);
set_history_style(h, 0);
}
redraw(ctx);
}
static void show_history_cb(void *user)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
enum selecting sel = sel_only;
if (ctx->old_hist)
sel = h == ctx->new_hist ? sel_new : sel_old;
show_history(ctx, sel);
}
/* ----- Navigate sheets --------------------------------------------------- */
/* @@@ find a better place for this forward declaration */
static void mark_aois(struct gui_ctx *ctx, struct gui_sheet *sheet);
static void close_subsheet(void *user)
{
struct gui_sheet *sheet = user;
struct gui_ctx *ctx = sheet->ctx;
go_to_sheet(ctx, sheet);
}
static bool hover_sheet(void *user, bool on)
{
struct gui_sheet *sheet = user;
struct gui_ctx *ctx = sheet->ctx;
const char *title = sheet->sch->title;
if (!title)
title = "(unnamed)";
if (on) {
const struct gui_sheet *s;
int n = 0, this = -1;
for (s = ctx->new_hist->sheets; s; s = s->next) {
n++;
if (s == sheet)
this = n;
}
overlay_text(sheet->over, "<b>%s</b>\n<big>%d / %d</big>",
title, this, n);
} else {
overlay_text(sheet->over, "<b>%s</b>", title);
}
redraw(ctx);
return 1;
}
static bool show_history_details(void *user, bool on)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
char *s;
if (on) {
s = vcs_git_long_for_pango(h->vcs_hist);
overlay_text_raw(h->over, s);
free(s);
} else {
overlay_text(h->over, "%.40s", vcs_git_summary(h->vcs_hist));
}
redraw(ctx);
return 1;
}
static void revision_overlays_diff(struct gui_ctx *ctx)
{
struct gui_hist *new = ctx->new_hist;
struct gui_hist *old = ctx->old_hist;
new->over = overlay_add(&ctx->hist_overlays, &ctx->aois,
show_history_details, show_history_cb, new);
overlay_style(new->over, &overlay_style_diff_new);
show_history_details(new, 0);
old->over = overlay_add(&ctx->hist_overlays, &ctx->aois,
show_history_details, show_history_cb, old);
overlay_style(old->over, &overlay_style_diff_old);
show_history_details(old, 0);
}
static void do_revision_overlays(struct gui_ctx *ctx)
{
overlay_remove_all(&ctx->hist_overlays);
if (ctx->old_hist) {
revision_overlays_diff(ctx);
} else {
ctx->new_hist->over = overlay_add(&ctx->hist_overlays,
&ctx->aois, show_history_details, show_history_cb,
ctx->new_hist);
overlay_style(ctx->new_hist->over, &overlay_style_default);
show_history_details(ctx->new_hist, 0);
}
}
static struct gui_sheet *find_parent_sheet(struct gui_sheet *sheets,
const struct gui_sheet *ref)
{
struct gui_sheet *parent;
const struct sch_obj *obj;
for (parent = sheets; parent; parent = parent->next)
for (obj = parent->sch->objs; obj; obj = obj->next)
if (obj->type == sch_obj_sheet &&
obj->u.sheet.sheet == ref->sch)
return parent;
return NULL;
}
static void sheet_selector_recurse(struct gui_ctx *ctx, struct gui_sheet *sheet)
{
struct gui_sheet *parent;
parent = find_parent_sheet(ctx->new_hist->sheets, sheet);
if (parent)
sheet_selector_recurse(ctx, parent);
sheet->over = overlay_add(&ctx->sheet_overlays, &ctx->aois,
hover_sheet, close_subsheet, sheet);
hover_sheet(sheet, 0);
}
static void do_sheet_overlays(struct gui_ctx *ctx)
{
overlay_remove_all(&ctx->sheet_overlays);
sheet_selector_recurse(ctx, ctx->curr_sheet);
}
static void go_to_sheet(struct gui_ctx *ctx, struct gui_sheet *sheet)
{
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aoi_dehover();
overlay_remove_all(&ctx->pop_overlays);
if (!sheet->rendered) {
render_sheet(sheet);
mark_aois(ctx, sheet);
}
ctx->curr_sheet = sheet;
if (ctx->old_hist)
render_delta(ctx);
if (ctx->vcs_hist)
do_revision_overlays(ctx);
do_sheet_overlays(ctx);
zoom_to_extents(ctx);
}
static bool go_up_sheet(struct gui_ctx *ctx)
{
struct gui_sheet *parent;
parent = find_parent_sheet(ctx->new_hist->sheets, ctx->curr_sheet);
if (!parent)
return 0;
go_to_sheet(ctx, parent);
return 1;
}
static bool go_prev_sheet(struct gui_ctx *ctx)
{
struct gui_sheet *sheet;
for (sheet = ctx->new_hist->sheets; sheet; sheet = sheet->next)
if (sheet->next && sheet->next == ctx->curr_sheet) {
go_to_sheet(ctx, sheet);
return 1;
}
return 0;
}
static bool go_next_sheet(struct gui_ctx *ctx)
{
if (!ctx->curr_sheet->next)
return 0;
go_to_sheet(ctx, ctx->curr_sheet->next);
return 1;
}
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/* ----- Event handlers ---------------------------------------------------- */
static gboolean motion_notify_event(GtkWidget *widget, GdkEventMotion *event,
gpointer data)
{
struct gui_ctx *ctx = data;
const struct gui_sheet *curr_sheet = ctx->curr_sheet;
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int x, y;
ctx->curr_x = event->x;
ctx->curr_y = event->y;
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canvas_coord(ctx, event->x, event->y, &x, &y);
aoi_hover(ctx->aois, event->x, event->y) ||
aoi_hover(curr_sheet->aois,
x + curr_sheet->xmin, y + curr_sheet->ymin);
pan_update(ctx, event->x, event->y);
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return TRUE;
}
static gboolean button_press_event(GtkWidget *widget, GdkEventButton *event,
gpointer data)
{
struct gui_ctx *ctx = data;
const struct gui_sheet *curr_sheet = ctx->curr_sheet;
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int x, y;
canvas_coord(ctx, event->x, event->y, &x, &y);
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switch (event->button) {
case 1:
if (aoi_click(ctx->aois, event->x, event->y))
break;
if (aoi_click(curr_sheet->aois,
x + curr_sheet->xmin, y + curr_sheet->ymin))
break;
if (ctx->showing_history)
hide_history(ctx);
overlay_remove_all(&ctx->pop_overlays);
redraw(ctx);
break;
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case 2:
pan_begin(ctx, event->x, event->y);
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break;
case 3:
break;
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}
return TRUE;
}
static gboolean button_release_event(GtkWidget *widget, GdkEventButton *event,
gpointer data)
{
struct gui_ctx *ctx = data;
int x, y;
canvas_coord(ctx, event->x, event->y, &x, &y);
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switch (event->button) {
case 1:
break;
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case 2:
pan_end(ctx, event->x, event->y);
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break;
case 3:
break;
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}
return TRUE;
}
static gboolean key_press_event(GtkWidget *widget, GdkEventKey *event,
gpointer data)
{
struct gui_ctx *ctx = data;
struct gui_sheet *sheet = ctx->curr_sheet;
int x, y;
canvas_coord(ctx, ctx->curr_x, ctx->curr_y, &x, &y);
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switch (event->keyval) {
case '+':
case '=':
zoom_in(ctx, x, y);
break;
case '-':
zoom_out(ctx, x, y);
break;
case '*':
zoom_to_extents(ctx);
break;
case GDK_KEY_Home:
if (sheet != ctx->new_hist->sheets)
go_to_sheet(ctx, ctx->new_hist->sheets);
break;
case GDK_KEY_BackSpace:
case GDK_KEY_Delete:
go_up_sheet(ctx);
break;
case GDK_KEY_Page_Up:
case GDK_KEY_KP_Page_Up:
go_prev_sheet(ctx);
break;
case GDK_KEY_Page_Down:
case GDK_KEY_KP_Page_Down:
go_next_sheet(ctx);
break;
case GDK_KEY_Up:
case GDK_KEY_KP_Up:
show_history(ctx, sel_new);
break;
case GDK_KEY_Down:
case GDK_KEY_KP_Down:
show_history(ctx, sel_old);
break;
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case GDK_KEY_q:
gtk_main_quit();
}
return TRUE;
}
static gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event,
gpointer data)
{
struct gui_ctx *ctx = data;
int x, y;
canvas_coord(ctx, event->x, event->y, &x, &y);
switch (event->direction) {
case GDK_SCROLL_UP:
zoom_in(ctx, x, y);
break;
case GDK_SCROLL_DOWN:
zoom_out(ctx, x, y);
break;
default:
/* ignore */;
}
return TRUE;
}
static void size_allocate_event(GtkWidget *widget, GdkRectangle *allocation,
gpointer data)
{
struct gui_ctx *ctx = data;
zoom_to_extents(ctx);
}
/* ----- AoI callbacks ----------------------------------------------------- */
struct sheet_aoi_ctx {
struct gui_ctx *gui_ctx;
const struct sch_obj *obj;
};
static void select_subsheet(void *user)
{
const struct sheet_aoi_ctx *aoi_ctx = user;
struct gui_ctx *ctx = aoi_ctx->gui_ctx;
const struct sch_obj *obj = aoi_ctx->obj;
struct gui_sheet *sheet;
if (!obj->u.sheet.sheet)
return;
for (sheet = ctx->new_hist->sheets; sheet; sheet = sheet->next)
if (sheet->sch == obj->u.sheet.sheet) {
go_to_sheet(ctx, sheet);
return;
}
abort();
}
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struct glabel_aoi_ctx {
const struct gui_sheet *sheet;
const struct sch_obj *obj;
struct dwg_bbox bbox;
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struct overlay *over;
};
/* small offset to hide rounding errors */
#define CHEAT 1
static void glabel_dest_click(void *user)
{
struct gui_sheet *sheet = user;
go_to_sheet(sheet->ctx, sheet);
}
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static bool hover_glabel(void *user, bool on)
{
struct glabel_aoi_ctx *aoi_ctx = user;
struct gui_ctx *ctx = aoi_ctx->sheet->ctx;
const struct gui_sheet *curr_sheet = ctx->curr_sheet;
const struct dwg_bbox *bbox = &aoi_ctx->bbox;
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if (!on) {
overlay_remove(&ctx->pop_overlays, aoi_ctx->over);
redraw(ctx);
return 1;
}
GtkAllocation alloc;
struct overlay_style style = {
.font = BOLD_FONT,
.wmin = 100,
.wmax = 100,
.radius = 0,
.pad = 4,
.skip = -4,
.fg = { 0.0, 0.0, 0.0, 1.0 },
.bg = { 1.0, 0.8, 0.4, 0.8 },
.frame = { 1.0, 1.0, 1.0, 1.0 }, /* debugging */
.width = 0,
};
int sx, sy, ex, ey, mx, my;
unsigned n = 0;
struct gui_sheet *sheet;
const struct sch_obj *obj;
struct overlay *over;
aoi_dehover();
overlay_remove_all(&ctx->pop_overlays);
for (sheet = ctx->new_hist->sheets; sheet; sheet = sheet->next) {
n++;
for (obj = sheet->sch->objs; obj; obj = obj->next) {
if (sheet == curr_sheet)
continue;
if (obj->type != sch_obj_glabel)
continue;
if (strcmp(obj->u.text.s, aoi_ctx->obj->u.text.s))
continue;
over = overlay_add(&ctx->pop_overlays,
&ctx->aois, NULL, glabel_dest_click, sheet);
overlay_text(over, "%d %s", n, sheet->sch->title);
overlay_style(over, &style);
break;
}
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}
eeschema_coord(ctx,
bbox->x - curr_sheet->xmin, bbox->y - curr_sheet->ymin,
&sx, &sy);
eeschema_coord(ctx, bbox->x + bbox->w - curr_sheet->xmin,
bbox->y + bbox->h - curr_sheet->ymin, &ex, &ey);
gtk_widget_get_allocation(ctx->da, &alloc);
mx = (sx + ex) / 2;
my = (sy + ey) / 2;
ctx->pop_x = mx < alloc.width / 2 ?
sx - CHEAT : -(alloc.width - ex) + CHEAT;
ctx->pop_y = my < alloc.height / 2 ?
sy - CHEAT : -(alloc.height - ey) + CHEAT;
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redraw(ctx);
return 0;
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}
/* ----- Progress bar ------------------------------------------------------ */
#define PROGRESS_BAR_HEIGHT 10
static void progress_draw_event(GtkWidget *widget, cairo_t *cr,
gpointer user_data)
{
struct gui_ctx *ctx = user_data;
unsigned 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);
}
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);
}
static void setup_progress_bar(struct gui_ctx *ctx, GtkWidget *window)
{
GdkScreen *screen;
unsigned w;
screen = gtk_window_get_screen(GTK_WINDOW(window));
w = gdk_screen_get_width(screen);
ctx->progress_scale = 0;
while ((ctx->hist_size >> ctx->progress_scale) > w / 2)
ctx->progress_scale++;
gtk_window_set_default_size(GTK_WINDOW(window),
ctx->hist_size >> ctx->progress_scale, PROGRESS_BAR_HEIGHT);
ctx->progress = 0;
g_signal_connect(G_OBJECT(ctx->da), "draw",
G_CALLBACK(progress_draw_event), ctx);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_decorated(GTK_WINDOW(window), 0);
gtk_widget_show_all(window);
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);
}
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/* ----- Initialization ---------------------------------------------------- */
static void add_sheet_aoi(struct gui_ctx *ctx, struct gui_sheet *parent,
const struct sch_obj *obj)
{
struct sheet_aoi_ctx *aoi_ctx = alloc_type(struct sheet_aoi_ctx);
aoi_ctx->gui_ctx = ctx;
aoi_ctx->obj = obj;
struct aoi aoi = {
.x = obj->x,
.y = obj->y,
.w = obj->u.sheet.w,
.h = obj->u.sheet.h,
.click = select_subsheet,
.user = aoi_ctx,
};
aoi_add(&parent->aois, &aoi);
}
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static void add_glabel_aoi(struct gui_sheet *sheet, const struct sch_obj *obj)
{
const struct dwg_bbox *bbox = &obj->u.text.bbox;
struct glabel_aoi_ctx *aoi_ctx = alloc_type(struct glabel_aoi_ctx);
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struct aoi cfg = {
.x = bbox->x,
.y = bbox->y,
.w = bbox->w,
.h = bbox->h,
.hover = hover_glabel,
.user = aoi_ctx,
};
aoi_ctx->sheet = sheet;
aoi_ctx->obj = obj;
aoi_ctx->bbox = *bbox;
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aoi_add(&sheet->aois, &cfg);
}
static void mark_aois(struct gui_ctx *ctx, struct gui_sheet *sheet)
{
const struct sch_obj *obj;
sheet->aois = NULL;
for (obj = sheet->sch->objs; obj; obj = obj->next)
switch (obj->type) {
case sch_obj_sheet:
add_sheet_aoi(ctx, sheet, obj);
break;
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case sch_obj_glabel:
add_glabel_aoi(sheet, obj);
default:
break;
}
}
static struct gui_sheet *get_sheets(struct gui_ctx *ctx,
const struct sheet *sheets)
{
const struct sheet *sheet;
struct gui_sheet *gui_sheets = NULL;
struct gui_sheet **next = &gui_sheets;
struct gui_sheet *new;
for (sheet = sheets; sheet; sheet = sheet->next) {
new = alloc_type(struct gui_sheet);
new->sch = sheet;
new->ctx = ctx;
new->rendered = 0;
*next = new;
next = &new->next;
}
*next = NULL;
return gui_sheets;
}
/*
* Library caching:
*
* We reuse previous components if all libraries are identical
*
* Future optimizations:
* - don't parse into single list of components, so that we can share
* libraries that are the same, even if there are others that have changed.
* - maybe put components into tree, so that they can be replaced individually
* (this would also help to identify sheets that don't need parsing)
*
* Sheet caching:
*
* We reuse previous sheets if
* - all libraries are identical (whether a given sheet uses them or not),
* - they have no sub-sheets, and
* - the objects IDs (hashes) are identical.
*
* Note that we only compare with the immediately preceding (newer) revision,
* so branches and merges can disrupt caching.
*
* Possible optimizations:
* - if we record which child sheets a sheet has, we could also clone it,
* without having to parse it. However, this is somewhat complex and may
* not save all that much time.
* - we could record what libraries a sheet uses, and parse only if one of
* these has changed (benefits scenarios with many library files),
* - we could record what components a sheet uses, and parse only if one of
* these has changed (benefits scenarios with few big libraries),
* - we could postpone library lookups to render time.
* - we could record IDs globally, which would help to avoid tripping over
* branches and merges.
*/
static const struct sheet *parse_files(struct gui_hist *hist,
int n_args, char **args, bool recurse, const struct gui_hist *prev)
{
char *rev = NULL;
struct file sch_file;
struct file lib_files[n_args - 1];
int libs_open, i;
bool libs_cached = 0;
bool ok;
if (hist->vcs_hist && hist->vcs_hist->commit)
rev = vcs_git_get_rev(hist->vcs_hist);
sch_init(&hist->sch_ctx, recurse);
ok = file_open_revision(&sch_file, rev, args[n_args - 1], NULL);
if (rev)
free(rev);
if (!ok) {
sch_free(&hist->sch_ctx);
return NULL;
}
lib_init(&hist->lib);
for (libs_open = 0; libs_open != n_args - 1; libs_open++)
if (!file_open(lib_files + libs_open, args[libs_open],
&sch_file))
goto fail;
if (hist->vcs_hist) {
hist->oids = alloc_type_n(void *, libs_open);
hist->libs_open = libs_open;
for (i = 0; i != libs_open; i++)
hist->oids[i] = file_oid(lib_files + i);
if (prev && prev->vcs_hist && prev->libs_open == libs_open) {
for (i = 0; i != libs_open; i++)
if (!file_oid_eq(hist->oids[i], prev->oids[i]))
break;
if (i == libs_open) {
hist->lib.comps = prev->lib.comps;
libs_cached = 1;
}
}
}
if (!libs_cached)
for (i = 0; i != libs_open; i++)
if (!lib_parse_file(&hist->lib, lib_files +i))
goto fail;
if (!sch_parse(&hist->sch_ctx, &sch_file, &hist->lib,
libs_cached ? &prev->sch_ctx : NULL))
goto fail;
for (i = 0; i != libs_open; i++)
file_close(lib_files + i);
file_close(&sch_file);
/*
* @@@ we have a major memory leak for the component library.
* We should record parsed schematics and libraries separately, so
* that we can clean them up, without having to rely on the history,
* with - when sharing unchanged item - possibly many duplicate
* pointers.
*/
return hist->sch_ctx.sheets;
fail:
while (libs_open--)
file_close(lib_files + libs_open);
sch_free(&hist->sch_ctx);
lib_free(&hist->lib);
file_close(&sch_file);
return NULL;
}
struct add_hist_ctx {
struct gui_ctx *ctx;
int n_args;
char **args;
bool recurse;
unsigned limit;
};
static void add_hist(void *user, struct hist *h)
{
struct add_hist_ctx *ahc = user;
struct gui_ctx *ctx = ahc->ctx;
struct gui_hist **anchor, *hist, *prev;
const struct sheet *sch;
unsigned age = 0;
if (!ahc->limit)
return;
if (ahc->limit > 0)
ahc->limit--;
prev = NULL;
for (anchor = &ctx->hist; *anchor; anchor = &(*anchor)->next) {
prev = *anchor;
age++;
}
hist = alloc_type(struct gui_hist);
hist->ctx = ctx;
hist->vcs_hist = h;
sch = parse_files(hist, ahc->n_args, ahc->args, ahc->recurse, prev);
hist->sheets = sch ? get_sheets(ctx, sch) : NULL;
hist->age = age;
hist->next = NULL;
*anchor = hist;
if (ctx->hist_size)
progress_update(ctx);
}
static void count_history(void *user, struct hist *h)
{
struct gui_ctx *ctx = user;
ctx->hist_size++;
}
static void get_history(struct gui_ctx *ctx, const char *sch_name, int limit)
{
if (!vcs_git_try(sch_name)) {
ctx->vcs_hist = NULL;
return;
}
ctx->vcs_hist = vcs_git_hist(sch_name);
if (limit)
ctx->hist_size = limit > 0 ? limit : -limit;
else
hist_iterate(ctx->vcs_hist, count_history, ctx);
}
static void get_revisions(struct gui_ctx *ctx,
int n_args, char **args, bool recurse, int limit)
{
struct add_hist_ctx add_hist_ctx = {
.ctx = ctx,
.n_args = n_args,
.args = args,
.recurse = recurse,
.limit = limit ? limit < 0 ? -limit : limit : -1,
};
if (ctx->vcs_hist)
hist_iterate(ctx->vcs_hist, add_hist, &add_hist_ctx);
else
add_hist(&add_hist_ctx, NULL);
}
int gui(unsigned n_args, char **args, bool recurse, int limit)
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{
GtkWidget *window;
struct gui_ctx ctx = {
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.zoom = 4, /* scale by 1 / 16 */
.panning = 0,
.hist = NULL,
.vcs_hist = NULL,
.showing_history= 0,
.sheet_overlays = NULL,
.hist_overlays = NULL,
.pop_overlays = NULL,
.aois = NULL,
.old_hist = NULL,
.hist_size = 0,
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};
get_history(&ctx, args[n_args - 1], limit);
if (ctx.hist_size) {
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
ctx.da = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), ctx.da);
setup_progress_bar(&ctx, window);
}
get_revisions(&ctx, n_args, args, recurse, limit);
for (ctx.new_hist = ctx.hist; ctx.new_hist && !ctx.new_hist->sheets;
ctx.new_hist = ctx.new_hist->next);
if (!ctx.new_hist)
fatal("no valid sheets\n");
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if (ctx.hist_size)
gtk_widget_destroy(window);
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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ctx.da = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), ctx.da);
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g_signal_connect(G_OBJECT(ctx.da), "draw",
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G_CALLBACK(on_draw_event), &ctx);
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g_signal_connect(G_OBJECT(ctx.da), "motion_notify_event",
G_CALLBACK(motion_notify_event), &ctx);
g_signal_connect(G_OBJECT(ctx.da), "button_press_event",
G_CALLBACK(button_press_event), &ctx);
g_signal_connect(G_OBJECT(ctx.da), "button_release_event",
G_CALLBACK(button_release_event), &ctx);
g_signal_connect(G_OBJECT(ctx.da), "scroll_event",
G_CALLBACK(scroll_event), &ctx);
g_signal_connect(G_OBJECT(ctx.da), "key_press_event",
G_CALLBACK(key_press_event), &ctx);
g_signal_connect(G_OBJECT(ctx.da), "size_allocate",
G_CALLBACK(size_allocate_event), &ctx);
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g_signal_connect(window, "destroy",
G_CALLBACK(gtk_main_quit), NULL);
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gtk_widget_set_can_focus(ctx.da, TRUE);
gtk_widget_set_events(ctx.da,
GDK_EXPOSE | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
GDK_KEY_PRESS_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK);
// gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_window_set_default_size(GTK_WINDOW(window), 640, 480);
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gtk_window_set_title(GTK_WINDOW(window), "eeshow");
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go_to_sheet(&ctx, ctx.new_hist->sheets);
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gtk_widget_show_all(window);
/* for performance testing, use -N-depth */
if (limit >= 0)
gtk_main();
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return 0;
}