mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-12-23 11:18:57 +02:00
eeshow/gui-over.h, gui-over.c: split overlays from gui.c
This commit is contained in:
Werner Almesberger
parent
2e909029bc
commit
69497551dd
@ -12,7 +12,7 @@
|
||||
|
||||
NAME = eeshow
|
||||
OBJS = main.o sch-parse.o sch-render.o lib-parse.o lib-render.o \
|
||||
gui.o \
|
||||
gui.o gui-over.o \
|
||||
file.o git-file.o \
|
||||
style.o fig.o record.o cro.o diff.o gfx.o dwg.o text.o misc.o
|
||||
|
||||
|
||||
141
eeshow/gui-over.c
Normal file
141
eeshow/gui-over.c
Normal file
@ -0,0 +1,141 @@
|
||||
/*
|
||||
* gui-over.c - GUI: overlays
|
||||
*
|
||||
* 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
|
||||
* https://www.cairographics.org/samples/rounded_rectangle/
|
||||
*/
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdlib.h>
|
||||
#include <math.h>
|
||||
|
||||
#include <cairo/cairo.h>
|
||||
|
||||
#include "util.h"
|
||||
#include "gui-over.h"
|
||||
|
||||
|
||||
#define OVER_FONT_SIZE 16
|
||||
#define OVER_BORDER 8
|
||||
#define OVER_RADIUS 6
|
||||
#define OVER_SEP 8
|
||||
#define OVER_X0 10
|
||||
#define OVER_Y0 10
|
||||
|
||||
|
||||
struct overlay {
|
||||
const char *s;
|
||||
struct overlay *next;
|
||||
};
|
||||
|
||||
|
||||
static void rrect(cairo_t *cr, int x, int y, int w, int h, int r)
|
||||
{
|
||||
const double deg = M_PI / 180.0;
|
||||
|
||||
cairo_new_path(cr);
|
||||
cairo_arc(cr, x + w - r, y + r, r, -90 * deg, 0);
|
||||
cairo_arc(cr, x + w - r, y + h - r, r, 0, 90 * deg);
|
||||
cairo_arc(cr, x + r, y + h - r, r, 90 * deg, 180 * deg);
|
||||
cairo_arc(cr, x + r, y + r, r, 180 * deg, 270 * deg);
|
||||
cairo_close_path(cr);
|
||||
}
|
||||
|
||||
|
||||
static void overlay_draw(const struct overlay *over, cairo_t *cr,
|
||||
int *x, int *y)
|
||||
{
|
||||
cairo_text_extents_t ext;
|
||||
|
||||
cairo_set_font_size(cr, OVER_FONT_SIZE);
|
||||
cairo_text_extents(cr, over->s, &ext);
|
||||
|
||||
rrect(cr, *x, *y,
|
||||
ext.width + 2 * OVER_BORDER, ext.height + 2 * OVER_BORDER,
|
||||
OVER_RADIUS);
|
||||
|
||||
cairo_set_source_rgba(cr, 0.8, 0.9, 1, 0.8);
|
||||
cairo_fill_preserve(cr);
|
||||
cairo_set_source_rgba(cr, 0.5, 0.5, 1, 0.7);
|
||||
cairo_set_line_width(cr, 2);
|
||||
cairo_stroke(cr);
|
||||
|
||||
cairo_set_source_rgb(cr, 0, 0, 0);
|
||||
cairo_move_to(cr, *x + OVER_BORDER, *y + OVER_BORDER + ext.height);
|
||||
cairo_show_text(cr, over->s);
|
||||
|
||||
*y += ext.height + OVER_SEP;
|
||||
}
|
||||
|
||||
|
||||
void overlay_draw_all(const struct overlay *overlays, cairo_t *cr)
|
||||
{
|
||||
const struct overlay *over;
|
||||
int x = OVER_X0;
|
||||
int y = OVER_Y0;
|
||||
|
||||
for (over = overlays; over; over = over->next)
|
||||
overlay_draw(over, cr, &x, &y);
|
||||
}
|
||||
|
||||
|
||||
struct overlay *overlay_add(struct overlay **overlays, const char *s)
|
||||
{
|
||||
struct overlay *over;
|
||||
struct overlay **anchor;
|
||||
|
||||
over = alloc_type(struct overlay);
|
||||
over->s = stralloc(s);
|
||||
|
||||
for (anchor = overlays; *anchor; anchor = &(*anchor)->next);
|
||||
over->next = NULL;
|
||||
*anchor = over;
|
||||
|
||||
return over;
|
||||
}
|
||||
|
||||
|
||||
static void overlay_free(struct overlay *over)
|
||||
{
|
||||
free((void *) over->s);
|
||||
free(over);
|
||||
}
|
||||
|
||||
|
||||
void overlay_remove(struct overlay **overlays, struct overlay *over)
|
||||
{
|
||||
struct overlay **anchor;
|
||||
|
||||
for (anchor = overlays; *anchor; anchor = &(*anchor)->next)
|
||||
if (*anchor == over) {
|
||||
*anchor = over->next;
|
||||
overlay_free(over);
|
||||
return;
|
||||
}
|
||||
abort();
|
||||
}
|
||||
|
||||
|
||||
void overlay_remove_all(struct overlay **overlays)
|
||||
{
|
||||
struct overlay *next;
|
||||
|
||||
while (*overlays) {
|
||||
next = (*overlays)->next;
|
||||
overlay_free(*overlays);
|
||||
*overlays = next;
|
||||
}
|
||||
}
|
||||
27
eeshow/gui-over.h
Normal file
27
eeshow/gui-over.h
Normal file
@ -0,0 +1,27 @@
|
||||
/*
|
||||
* gui-over.h - GUI: overlays
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef GUI_OVER_H
|
||||
#define GUI_OVER_H
|
||||
|
||||
#include <cairo/cairo.h>
|
||||
|
||||
|
||||
struct overlay;
|
||||
|
||||
|
||||
void overlay_draw_all(const struct overlay *overlays, cairo_t *cr);
|
||||
struct overlay *overlay_add(struct overlay **overlays, const char *s);
|
||||
void overlay_remove(struct overlay **overlays, struct overlay *over);
|
||||
void overlay_remove_all(struct overlay **overlays);
|
||||
|
||||
#endif /* !GUI_OVER_H */
|
||||
129
eeshow/gui.c
129
eeshow/gui.c
@ -30,6 +30,7 @@
|
||||
#include "cro.h"
|
||||
#include "gfx.h"
|
||||
#include "sch.h"
|
||||
#include "gui-over.h"
|
||||
#include "gui.h"
|
||||
|
||||
|
||||
@ -59,8 +60,6 @@ struct gui_sheet {
|
||||
struct gui_sheet *next;
|
||||
};
|
||||
|
||||
struct overlay;
|
||||
|
||||
struct gui_ctx {
|
||||
GtkWidget *da;
|
||||
|
||||
@ -149,126 +148,6 @@ static void aoi_click(struct gui_ctx *ctx, int x, int y)
|
||||
}
|
||||
|
||||
|
||||
/* ----- Overlays ---------------------------------------------------------- */
|
||||
|
||||
|
||||
struct overlay {
|
||||
const char *s;
|
||||
struct overlay *next;
|
||||
};
|
||||
|
||||
|
||||
#define OVER_FONT_SIZE 16
|
||||
#define OVER_BORDER 8
|
||||
#define OVER_RADIUS 6
|
||||
#define OVER_SEP 8
|
||||
#define OVER_X0 10
|
||||
#define OVER_Y0 10
|
||||
|
||||
|
||||
static void rrect(cairo_t *cr, int x, int y, int w, int h, int r)
|
||||
{
|
||||
const double deg = M_PI / 180.0;
|
||||
|
||||
// https://www.cairographics.org/samples/rounded_rectangle/
|
||||
|
||||
cairo_new_path(cr);
|
||||
cairo_arc(cr, x + w - r, y + r, r, -90 * deg, 0);
|
||||
cairo_arc(cr, x + w - r, y + h - r, r, 0, 90 * deg);
|
||||
cairo_arc(cr, x + r, y + h - r, r, 90 * deg, 180 * deg);
|
||||
cairo_arc(cr, x + r, y + r, r, 180 * deg, 270 * deg);
|
||||
cairo_close_path(cr);
|
||||
}
|
||||
|
||||
|
||||
static void overlay_draw(const struct overlay *over, cairo_t *cr,
|
||||
int *x, int *y)
|
||||
{
|
||||
cairo_text_extents_t ext;
|
||||
|
||||
cairo_set_font_size(cr, OVER_FONT_SIZE);
|
||||
cairo_text_extents(cr, over->s, &ext);
|
||||
|
||||
rrect(cr, *x, *y,
|
||||
ext.width + 2 * OVER_BORDER, ext.height + 2 * OVER_BORDER,
|
||||
OVER_RADIUS);
|
||||
|
||||
cairo_set_source_rgba(cr, 0.8, 0.9, 1, 0.8);
|
||||
cairo_fill_preserve(cr);
|
||||
cairo_set_source_rgba(cr, 0.5, 0.5, 1, 0.7);
|
||||
cairo_set_line_width(cr, 2);
|
||||
cairo_stroke(cr);
|
||||
|
||||
cairo_set_source_rgb(cr, 0, 0, 0);
|
||||
cairo_move_to(cr, *x + OVER_BORDER, *y + OVER_BORDER + ext.height);
|
||||
cairo_show_text(cr, over->s);
|
||||
|
||||
*y += ext.height + OVER_SEP;
|
||||
}
|
||||
|
||||
|
||||
static void overlay_draw_all(const struct gui_ctx *ctx, cairo_t *cr)
|
||||
{
|
||||
const struct overlay *over;
|
||||
int x = OVER_X0;
|
||||
int y = OVER_Y0;
|
||||
|
||||
for (over = ctx->overlays; over; over = over->next)
|
||||
overlay_draw(over, cr, &x, &y);
|
||||
}
|
||||
|
||||
|
||||
static struct overlay *overlay_add(struct gui_ctx *ctx, const char *s)
|
||||
{
|
||||
struct overlay *over;
|
||||
struct overlay **anchor;
|
||||
|
||||
over = alloc_type(struct overlay);
|
||||
over->s = stralloc(s);
|
||||
|
||||
for (anchor = &ctx->overlays; *anchor; anchor = &(*anchor)->next);
|
||||
over->next = NULL;
|
||||
*anchor = over;
|
||||
|
||||
return over;
|
||||
}
|
||||
|
||||
|
||||
static void overlay_free(struct overlay *over)
|
||||
{
|
||||
free((void *) over->s);
|
||||
free(over);
|
||||
}
|
||||
|
||||
|
||||
static void overlay_remove(struct gui_ctx *ctx, struct overlay *over)
|
||||
{
|
||||
struct overlay **anchor;
|
||||
|
||||
for (anchor = &ctx->overlays; *anchor; anchor = &(*anchor)->next)
|
||||
if (*anchor == over) {
|
||||
*anchor = over->next;
|
||||
overlay_free(over);
|
||||
redraw(ctx);
|
||||
return;
|
||||
}
|
||||
abort();
|
||||
}
|
||||
|
||||
|
||||
static void overlay_remove_all(struct gui_ctx *ctx)
|
||||
{
|
||||
struct overlay *next;
|
||||
|
||||
while (ctx->overlays) {
|
||||
next = ctx->overlays->next;
|
||||
overlay_free(ctx->overlays);
|
||||
ctx->overlays = next;
|
||||
}
|
||||
redraw(ctx);
|
||||
}
|
||||
|
||||
|
||||
/* ----- Rendering --------------------------------------------------------- */
|
||||
|
||||
|
||||
@ -287,7 +166,7 @@ static gboolean on_draw_event(GtkWidget *widget, cairo_t *cr,
|
||||
y = -(sheet->ymin + ctx->y) * f + alloc.height / 2;
|
||||
cro_canvas_draw(sheet->gfx_ctx, cr, x, y, f);
|
||||
|
||||
overlay_draw_all(ctx, cr);
|
||||
overlay_draw_all(ctx->overlays, cr);
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
@ -473,7 +352,7 @@ static void set_sheet(struct gui_ctx *ctx, struct gui_sheet *sheet)
|
||||
if (sheet->prev == sheet)
|
||||
sheet->prev = NULL;
|
||||
ctx->curr_sheet = sheet;
|
||||
overlay_remove_all(ctx);
|
||||
overlay_remove_all(&ctx->overlays);
|
||||
zoom_to_extents(ctx);
|
||||
}
|
||||
|
||||
@ -556,7 +435,7 @@ static void select_subsheet(struct gui_ctx *ctx, void *user)
|
||||
if (sheet->sch == obj->u.sheet.sheet) {
|
||||
sheet->prev = ctx->curr_sheet;
|
||||
set_sheet(ctx, sheet);
|
||||
overlay_add(ctx, obj->u.sheet.name);
|
||||
overlay_add(&ctx->overlays, obj->u.sheet.name);
|
||||
return;
|
||||
}
|
||||
abort();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user