ede/ede-desktop/DesktopIcon.cpp

415 lines
9.6 KiB
C++

/*
* $Id$
*
* Copyright (C) 2006-2013 Sanel Zukan
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define FL_LIBRARY 1
#include <FL/Fl.H>
#include <FL/fl_draw.H>
#include <edelib/Debug.h>
#include <edelib/IconLoader.h>
#include <edelib/MenuItem.h>
#include <edelib/MessageBox.h>
#include <edelib/Nls.h>
#include <edelib/Run.h>
#include "DesktopIcon.h"
#include "MovableIcon.h"
#include "Desktop.h"
/* label offset from icon y() + h(), so selection box can be drawn nicely */
#define LABEL_OFFSET 2
/* minimal icon sizes */
#define ICON_SIZE_MIN_W 48
#define ICON_SIZE_MIN_H 48
/* spaces around box in case of large/small icons */
#define OFFSET_W 16
#define OFFSET_H 16
EDELIB_NS_USING(IconLoader)
EDELIB_NS_USING(String)
EDELIB_NS_USING(MenuButton)
EDELIB_NS_USING(MenuItem)
EDELIB_NS_USING(run_async)
EDELIB_NS_USING(ask)
EDELIB_NS_USING(alert)
EDELIB_NS_USING(input)
EDELIB_NS_USING(ICON_SIZE_TINY)
EDELIB_NS_USING(ICON_SIZE_HUGE)
static void open_cb(Fl_Widget*, void* d);
static void edit_cb(Fl_Widget*, void* d);
static void delete_cb(Fl_Widget*, void* d);
static MenuItem icon_menu[] = {
{_("&Open"), 0, open_cb, 0},
{_("&Edit"), 0, edit_cb, 0},
{_("&Delete"), 0, delete_cb, 0},
{0}
};
#if 0
static MenuItem icon_trash_menu[] = {
{_("&Open"), 0, 0},
{_("&Properties"), 0, 0, 0, FL_MENU_DIVIDER},
{_("&Empty"), 0, 0},
{0}
};
#endif
static void open_cb(Fl_Widget*, void* d) {
DesktopIcon *o = (DesktopIcon*)d;
run_async("ede-launch %s", o->get_cmd());
}
static void edit_cb(Fl_Widget*, void* d) {
DesktopIcon *di = (DesktopIcon*)d;
((Desktop*)di->parent())->edit_icon(di);
}
# if 0
static void rename_cb(Fl_Widget*, void* d) {
DesktopIcon *di = (DesktopIcon*)d;
const char *new_name = input(_("Change desktop icon name to:"), di->label());
if(new_name) {
bool saved = ((Desktop*)di->parent())->rename_icon(di, new_name);
if(!saved)
alert(_("Unable to rename this icon. Please check if you have enough permissions to do so"));
}
}
#endif
static void delete_cb(Fl_Widget*, void* d) {
DesktopIcon *di = (DesktopIcon*)d;
if(ask(_("This icon will be permanently deleted. Are you sure?")))
((Desktop*)di->parent())->remove_icon(di, true);
}
DesktopIcon::DesktopIcon(const char *l, int W, int H) : Fl_Widget(1, 1, W, H, l) {
box(FL_FLAT_BOX);
color(FL_RED);
label(l);
align(FL_ALIGN_WRAP);
/* default values unless given explicitly */
labelfont(FL_HELVETICA);
labelsize(12);
darker_img = 0;
micon = 0;
lwidth = lheight = 0;
focused = false;
imenu = 0;
icon_menu[2].image((Fl_Image*)IconLoader::get("edit-delete", ICON_SIZE_TINY));
}
DesktopIcon::~DesktopIcon() {
delete darker_img;
delete micon;
delete imenu;
}
void DesktopIcon::set_image(const char *name) {
E_RETURN_IF_FAIL(IconLoader::inited());
/* if not name give, use false name to trick IconLoader to use fallback icons */
if(!name) name = "THIS-ICON-DOES-NOT-EXISTS";
E_RETURN_IF_FAIL(IconLoader::set(this, name, ICON_SIZE_HUGE));
/* fetch image object for sizes */
Fl_Image *img = image();
int img_w = img->w(),
img_h = img->h();
/* resize box if icon is larger */
if(img_w > ICON_SIZE_MIN_W || img_h > ICON_SIZE_MIN_H)
size(img_w + OFFSET_W, img_h + OFFSET_H);
}
void DesktopIcon::set_tooltip(const char *tip) {
#if (FL_MAJOR_VERSION >= 1) && (FL_MINOR_VERSION >= 3)
copy_tooltip(tip);
#else
/*
* in versions prior 1.3, copy_tooltip didn't exist and there wasn't any
* way to store tooltip without manually managing the storage
*/
if(tip) {
ttip = tip;
tooltip(ttip.c_str());
} else {
tooltip(tip);
}
#endif
}
void DesktopIcon::update_label_font_and_size(void) {
E_RETURN_IF_FAIL(opts != 0);
labelfont(opts->label_font);
labelsize(opts->label_fontsize);
lwidth = opts->label_maxwidth;
lheight = 0;
/*
* make sure current font size/type is set (internaly to fltk)
* so fl_measure() can correctly calculate label width and height
*/
int old = fl_font(), old_sz = fl_size();
fl_font(labelfont(), labelsize());
fl_measure(label(), lwidth, lheight, align());
fl_font(old, old_sz);
lwidth += 12;
lheight += 5;
}
void DesktopIcon::fix_position(int X, int Y) {
int dx = parent()->x(),
dy = parent()->y(),
dw = parent()->w(),
dh = parent()->h();
if(X < dx) X = dx;
if(Y < dy) Y = dy;
if(X + w() > dw) X = (dx + dw) - w();
if(Y + h() > dh) Y = (dy + dh) - h();
position(X, Y);
}
void DesktopIcon::drag(int x, int y, bool apply) {
if(!micon) {
micon = new MovableIcon(this);
#if HAVE_SHAPE
/*
* This is used to calculate correct window startup/ending
* position since icon is placed in the middle of the box.
*/
int ix = 0, iy = 0;
if(image()) {
ix = (w()/2) - (image()->w()/2);
iy = (h()/2) - (image()->h()/2);
/* include parent offset since x/y are absolute locations */
if(parent()) {
ix += parent()->x();
iy += parent()->y();
}
}
micon->position(micon->x() + ix, micon->y() + iy);
#endif
micon->show();
} else {
E_ASSERT(micon != NULL);
micon->position(x, y);
}
if(apply) {
#if HAVE_SHAPE
int ix = 0, iy = 0;
if(image()) {
ix = (w()/2) - (image()->w()/2);
iy = (h()/2) - (image()->h()/2);
/* also take into account offsets, as below we subtract it */
if(parent()) {
ix += parent()->x();
iy += parent()->y();
}
}
fix_position(micon->x() - ix, micon->y() - iy);
#else
fix_position(micon->x(), micon->y());
#endif
delete micon;
micon = NULL;
}
}
/* used only in Desktop::move_selection */
int DesktopIcon::drag_icon_x(void) {
if(!micon)
return x();
else
return micon->x();
}
/* used only in Desktop::move_selection */
int DesktopIcon::drag_icon_y(void) {
if(!micon)
return y();
else
return micon->y();
}
void DesktopIcon::fast_redraw(void) {
int wsz = w();
int xpos = x();
if(lwidth > w()) {
wsz = lwidth + 4;
xpos = x() - 4;
}
/* LABEL_OFFSET + 2 include selection box line height too; same for xpos */
parent()->damage(FL_DAMAGE_ALL, xpos, y(), wsz, h() + lheight + LABEL_OFFSET + 2);
}
void DesktopIcon::draw(void) {
if(image() && (damage() & FL_DAMAGE_ALL)) {
Fl_Image *im = image();
/* center image in the box */
int ix = (w()/2) - (im->w()/2);
int iy = (h()/2) - (im->h()/2);
ix += x();
iy += y();
if(is_focused()) {
/* create darker image only when needed */
if(!darker_img) {
darker_img = im->copy(im->w(), im->h());
darker_img->color_average(FL_BLUE, 0.6);
}
darker_img->draw(ix, iy);
} else {
im->draw(ix, iy);
}
}
if(opts && opts->label_visible && (damage() & (FL_DAMAGE_ALL | EDE_DESKTOP_DAMAGE_CHILD_LABEL))) {
int X = x() + w()-(w()/2)-(lwidth/2);
int Y = y() + h() + LABEL_OFFSET;
Fl_Color old = fl_color();
if(!opts->label_transparent) {
fl_color(opts->label_background);
fl_rectf(X, Y, lwidth, lheight);
}
int old_font = fl_font();
int old_font_sz = fl_size();
/* draw with icon's font */
fl_font(labelfont(), labelsize());
/* pseudo-shadow */
fl_color(FL_BLACK);
fl_draw(label(), X+1, Y+1, lwidth, lheight, align(), 0, 0);
fl_color(opts->label_foreground);
fl_draw(label(), X, Y, lwidth, lheight, align(), 0, 0);
/* restore old font */
fl_font(old_font, old_font_sz);
if(is_focused()) {
/* draw focused box on our way so later this can be used to draw customised boxes */
fl_color(opts->label_foreground);
fl_line_style(FL_DOT);
fl_push_matrix();
fl_begin_loop();
fl_vertex(X, Y);
fl_vertex(X + lwidth, Y);
fl_vertex(X + lwidth, Y + lheight);
fl_vertex(X, Y + lheight);
fl_vertex(X, Y);
fl_end_loop();
fl_pop_matrix();
/* revert to default line style */
fl_line_style(0);
}
/* revert to old color whatever that be */
fl_color(old);
}
}
int DesktopIcon::handle(int event) {
switch(event) {
case FL_FOCUS:
case FL_UNFOCUS:
case FL_ENTER:
case FL_LEAVE:
/* We have to handle FL_MOVE too, if want to get only once FL_ENTER when entered or FL_LEAVE when leaved */
case FL_MOVE:
return 1;
case FL_PUSH:
if(Fl::event_button() == 3) {
/*
* init icon specific menu only when needed
* TODO: since menu for all icons is mostly the same, it can be shared; Desktop can
* have menu instance seeded to all icons
*/
if(!imenu) {
imenu = new MenuButton(0, 0, 0, 0);
imenu->menu(icon_menu);
}
/* MenuItem::popup() by default does not call callbacks */
const MenuItem *m = imenu->menu()->popup(Fl::event_x(), Fl::event_y());
/* call menu callbacks, passing correct parameters */
if(m && m->callback())
m->do_callback(0, this);
}
return 1;
case FL_RELEASE:
if(Fl::event_clicks() > 0 && !cmd.empty())
run_async("ede-launch %s", cmd.c_str());
return 1;
case FL_DND_ENTER:
case FL_DND_DRAG:
case FL_DND_LEAVE:
return 1;
case FL_DND_RELEASE:
E_DEBUG(E_STRLOC ": FL_DND_RELEASE on icon\n");
return 1;
case FL_PASTE:
E_DEBUG(E_STRLOC ": FL_PASTE on icon with %s\n", Fl::event_text());
return 1;
default:
break;
}
return 0;
}