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eeshow/gui-aoi.c, gui-aoi.h: split areas of interest from gui.c; abstract better
This commit is contained in:
Werner Almesberger
parent
18f35dc8e0
commit
849b8f33e5
@ -12,7 +12,7 @@
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NAME = eeshow
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OBJS = main.o sch-parse.o sch-render.o lib-parse.o lib-render.o \
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gui.o gui-over.o \
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gui.o gui-over.o gui-aoi.o \
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file.o git-file.o \
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style.o fig.o record.o cro.o diff.o gfx.o dwg.o text.o misc.o
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81
eeshow/gui-aoi.c
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81
eeshow/gui-aoi.c
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@ -0,0 +1,81 @@
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/*
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* gui-aoi.c - GUI: areas of interest
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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/*
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* Resources:
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*
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* http://zetcode.com/gfx/cairo/cairobackends/
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* https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html
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*/
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#include <stddef.h>
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#include "util.h"
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#include "gui-aoi.h"
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static const struct aoi *hovering = NULL;
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void aoi_add(struct aoi **aois, const struct aoi *aoi)
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{
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struct aoi *new;
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new = alloc_type(struct aoi);
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*new = *aoi;
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new->next = *aois;
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*aois = new;
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}
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bool aoi_hover(const struct aoi *aois, int x, int y)
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{
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const struct aoi *aoi;
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if (hovering) {
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if (x >= hovering->x && x < hovering->x + hovering->w &&
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y >= hovering->y && y < hovering->y + hovering->h)
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return 1;
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hovering->hover(hovering->user, 0);
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hovering = NULL;
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}
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for (aoi = aois; aoi; aoi = aoi->next)
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if (x >= aoi->x && x < aoi->x + aoi->w &&
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y >= aoi->y && y < aoi->y + aoi->h)
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break;
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if (aoi && aoi->hover && aoi->hover(aoi->user, 1)) {
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hovering = aoi;
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return 1;
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}
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return 0;
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}
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bool aoi_click(const struct aoi *aois, int x, int y)
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{
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const struct aoi *aoi;
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if (hovering) {
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hovering->hover(hovering->user, 0);
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hovering = NULL;
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}
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for (aoi = aois; aoi; aoi = aoi->next)
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if (x >= aoi->x && x < aoi->x + aoi->w &&
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y >= aoi->y && y < aoi->y + aoi->h)
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break;
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if (aoi && aoi->click) {
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aoi->click(aoi->user);
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return 1;
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}
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return 0;
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}
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35
eeshow/gui-aoi.h
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35
eeshow/gui-aoi.h
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@ -0,0 +1,35 @@
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/*
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* gui-aoi.h - GUI: areas of interest
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef GUI_AOI_H
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#define GUI_AOI_H
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#include <stdbool.h>
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struct aoi {
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int x, y, w, h; /* activation box, eeschema coordinates */
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/* points to hovered aoi, or NULL */
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bool (*hover)(void *user, bool on);
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void (*click)(void *user);
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void *user;
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struct aoi *next;
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};
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void aoi_add(struct aoi **aois, const struct aoi *aoi);
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bool aoi_hover(const struct aoi *aois, int x, int y);
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bool aoi_click(const struct aoi *aois, int x, int y);
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#endif /* !GUI_AOI_H */
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130
eeshow/gui.c
130
eeshow/gui.c
@ -30,22 +30,13 @@
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#include "cro.h"
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#include "gfx.h"
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#include "sch.h"
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#include "gui-aoi.h"
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#include "gui-over.h"
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#include "gui.h"
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struct gui_ctx;
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struct aoi {
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int x, y, w, h; /* activation box, eeschema coordinates */
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bool (*hover)(struct gui_ctx *ctx, void *user, bool on);
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void (*click)(struct gui_ctx *ctx, void *user);
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void *user;
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struct aoi *next;
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};
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struct gui_sheet {
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const const struct sheet *sch;
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struct cro_ctx *gfx_ctx;
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@ -72,8 +63,6 @@ struct gui_ctx {
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bool panning;
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int pan_x, pan_y;
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const struct aoi *aoi_hovering; /* hovering over this aoi */
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struct overlay *overlays;
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struct gui_sheet *curr_sheet;
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@ -91,63 +80,6 @@ static void redraw(const struct gui_ctx *ctx)
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}
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/* ----- Area of intereest ------------------------------------------------- */
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static void aoi_add(struct gui_sheet *sheet, const struct aoi *aoi)
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{
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struct aoi *new;
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new = alloc_type(struct aoi);
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*new = *aoi;
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new->next = sheet->aois;
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sheet->aois = new;
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}
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static void aoi_hover(struct gui_ctx *ctx, int x, int y)
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{
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const struct gui_sheet *sheet = ctx->curr_sheet;
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const struct aoi *aoi = ctx->aoi_hovering;
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if (aoi) {
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if (x >= aoi->x && x < aoi->x + aoi->w &&
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y >= aoi->y && y < aoi->y + aoi->h)
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return;
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aoi->hover(ctx, aoi->user, 0);
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ctx->aoi_hovering = NULL;
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}
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for (aoi = sheet->aois; aoi; aoi = aoi->next)
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if (x >= aoi->x && x < aoi->x + aoi->w &&
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y >= aoi->y && y < aoi->y + aoi->h)
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break;
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if (aoi && aoi->hover && aoi->hover(ctx, aoi->user, 1))
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ctx->aoi_hovering = aoi;
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}
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static void aoi_click(struct gui_ctx *ctx, int x, int y)
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{
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const struct gui_sheet *sheet = ctx->curr_sheet;
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const struct aoi *aoi = ctx->aoi_hovering;
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x += sheet->xmin;
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y += sheet->ymin;
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if (aoi) {
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aoi->hover(ctx, aoi->user, 0);
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ctx->aoi_hovering = NULL;
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}
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for (aoi = sheet->aois; aoi; aoi = aoi->next)
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if (x >= aoi->x && x < aoi->x + aoi->w &&
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y >= aoi->y && y < aoi->y + aoi->h)
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break;
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if (aoi && aoi->click)
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aoi->click(ctx, aoi->user);
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}
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/* ----- Rendering --------------------------------------------------------- */
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@ -290,6 +222,7 @@ static gboolean motion_notify_event(GtkWidget *widget, GdkEventMotion *event,
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gpointer data)
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{
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struct gui_ctx *ctx = data;
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const struct gui_sheet *curr_sheet = ctx->curr_sheet;
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int x, y;
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ctx->curr_x = event->x;
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@ -297,7 +230,7 @@ static gboolean motion_notify_event(GtkWidget *widget, GdkEventMotion *event,
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canvas_coord(ctx, event->x, event->y, &x, &y);
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aoi_hover(ctx, x, y);
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aoi_hover(curr_sheet->aois, x + curr_sheet->xmin, y + curr_sheet->ymin);
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pan_update(ctx, event->x, event->y);
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return TRUE;
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@ -308,13 +241,15 @@ static gboolean button_press_event(GtkWidget *widget, GdkEventButton *event,
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gpointer data)
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{
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struct gui_ctx *ctx = data;
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const struct gui_sheet *curr_sheet = ctx->curr_sheet;
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int x, y;
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canvas_coord(ctx, event->x, event->y, &x, &y);
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switch (event->button) {
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case 1:
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aoi_click(ctx, x, y);
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aoi_click(curr_sheet->aois,
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x + curr_sheet->xmin, y + curr_sheet->ymin);
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break;
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case 2:
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pan_begin(ctx, event->x, event->y);
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@ -426,10 +361,18 @@ static void size_allocate_event(GtkWidget *widget, GdkRectangle *allocation,
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/* ----- AoI callbacks ----------------------------------------------------- */
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static void select_subsheet(struct gui_ctx *ctx, void *user)
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struct sheet_aoi_ctx {
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struct gui_ctx *gui_ctx;
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const struct sch_obj *obj;
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};
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static void select_subsheet(void *user)
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{
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const struct sch_obj *obj = user;
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struct gui_sheet *sheet;
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const struct sheet_aoi_ctx *aoi_ctx = user;
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struct gui_ctx *ctx = aoi_ctx->gui_ctx;
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const struct sch_obj *obj = aoi_ctx->obj;
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struct gui_sheet *sheet;
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for (sheet = ctx->sheets; sheet; sheet = sheet->next)
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if (sheet->sch == obj->u.sheet.sheet) {
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@ -445,25 +388,36 @@ static void select_subsheet(struct gui_ctx *ctx, void *user)
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/* ----- Initialization ---------------------------------------------------- */
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static void mark_aois(struct gui_sheet *sheet)
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static void add_sheet_aoi(struct gui_ctx *ctx, struct gui_sheet *parent,
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const struct sch_obj *obj)
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{
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struct sheet_aoi_ctx *aoi_ctx = alloc_type(struct sheet_aoi_ctx);
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aoi_ctx->gui_ctx = ctx;
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aoi_ctx->obj = obj;
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struct aoi aoi = {
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.x = obj->x,
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.y = obj->y,
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.w = obj->u.sheet.w,
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.h = obj->u.sheet.h,
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.click = select_subsheet,
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.user = aoi_ctx,
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};
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aoi_add(&parent->aois, &aoi);
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}
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static void mark_aois(struct gui_ctx *ctx, struct gui_sheet *sheet)
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{
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const struct sch_obj *obj;
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sheet->aois = NULL;
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for (obj = sheet->sch->objs; obj; obj = obj->next)
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switch (obj->type) {
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case sch_obj_sheet: {
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struct aoi aoi = {
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.x = obj->x,
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.y = obj->y,
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.w = obj->u.sheet.w,
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.h = obj->u.sheet.h,
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.click = select_subsheet,
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.user = (void *) obj,
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};
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aoi_add(sheet, &aoi);
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}
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case sch_obj_sheet:
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add_sheet_aoi(ctx, sheet, obj);
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break;
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default:
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break;
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@ -483,7 +437,7 @@ static void get_sheets(struct gui_ctx *ctx, const struct sheet *sheets)
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gui_sheet->prev = NULL;
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render(ctx, gui_sheet);
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mark_aois(gui_sheet);
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mark_aois(ctx, gui_sheet);
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*next = gui_sheet;
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next = &gui_sheet->next;
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