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hl_tree.f90
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hl_tree.f90
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! Copyright (C) 2011
! Free Software Foundation, Inc.
! This file is part of the gtk-fortran gtk+ Fortran Interface library.
! This 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 3, or (at your option)
! any later version.
! This software 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.
! Under Section 7 of GPL version 3, you are granted additional
! permissions described in the GCC Runtime Library Exception, version
! 3.1, as published by the Free Software Foundation.
! You should have received a copy of the GNU General Public License along with
! this program; see the files COPYING3 and COPYING.RUNTIME respectively.
! If not, see <http://www.gnu.org/licenses/>.
!
! gfortran -g gtk.f90 gtk-sup.f90 gtk-hl.f90 hl_tree.f90 `pkg-config --cflags --libs gtk+-2.0`
! Contributed by James Tappin.
module tr_handlers
use gtk_hl
use gtk, only: gtk_button_new, gtk_check_button_new, gtk_container_add, gtk_ent&
&ry_get_text, gtk_entry_get_text_length, gtk_entry_new, gtk_entry_set_text, gtk&
&_main, gtk_main_quit, gtk_widget_destroy, gtk_toggle_button_get_active, gtk_to&
&ggle_button_set_active, gtk_widget_show, gtk_widget_show_all, gtk_window_new, &
& gtk_init
use g, only: alloca
implicit none
! The widgets. (Strictly only those that need to be accessed
! by the handlers need to go here).
type(c_ptr) :: ihwin,ihscrollcontain,ihlist, base, &
& qbut, dbut, lbl
contains
subroutine my_destroy(widget, gdata) bind(c)
type(c_ptr), value :: widget, gdata
print *, "Exit called"
call gtk_widget_destroy(ihwin)
call gtk_main_quit ()
end subroutine my_destroy
subroutine del_row(but, gdata) bind(c)
type(c_ptr), value :: but, gdata
integer(kind=c_int), dimension(:,:), allocatable :: selections
integer(kind=c_int), dimension(:), allocatable :: dep
integer(kind=c_int) :: nsel
nsel = hl_gtk_tree_get_selections(ihlist, selections, &
& depths=dep)
if (nsel /= 1) then
print *, "Not a single selection"
return
end if
call hl_gtk_tree_rem(ihlist, selections(:dep(1),1))
call gtk_widget_set_sensitive(but, FALSE)
end subroutine del_row
subroutine list_select(list, gdata) bind(c)
type(c_ptr), value :: list, gdata
integer(kind=c_int) :: nsel
integer(kind=c_int), dimension(:,:), allocatable :: selections
integer(kind=c_int), dimension(:), allocatable :: dep
integer(kind=c_int) :: n, n3
integer(kind=c_int64_t) :: n4
real(kind=c_float) :: nlog
character(len=30) :: name
character(len=10) :: nodd
integer :: i
nsel = hl_gtk_tree_get_selections(C_NULL_PTR, selections, selection=list, &
& depths=dep)
if (nsel == 0) then
print *, "No selection"
return
end if
! Find and print the selected row(s)
print *, nsel,"Rows selected"
print *, "Depths", dep
print *, "Rows"
do i = 1, nsel
print *, selections(:dep(i),i)
end do
if (nsel == 1) then
call hl_gtk_tree_get_cell(ihlist, selections(:dep(1),1), 0_c_int, &
& svalue=name)
call hl_gtk_tree_get_cell(ihlist, selections(:dep(1),1), 1_c_int, &
& ivalue=n)
call hl_gtk_tree_get_cell(ihlist, selections(:dep(1),1), 2_c_int, &
& ivalue=n3)
call hl_gtk_tree_get_cell(ihlist, selections(:dep(1),1), 4_c_int, &
& l64value=n4)
call hl_gtk_tree_get_cell(ihlist, selections(:dep(1),1), 3_c_int, &
& fvalue=nlog)
call hl_gtk_tree_get_cell(ihlist, selections(:dep(1),1), 5_c_int,&
& svalue=nodd)
print "('Name: ',a,' N:',I3,' 3N:',I4,' N**4:',I7,&
&' log(n):',F7.5,' Odd?: ',a)", trim(name), &
& n, n3, n4, nlog, nodd
call gtk_widget_set_sensitive(dbut, TRUE)
else
call gtk_widget_set_sensitive(dbut, FALSE)
end if
deallocate(selections)
end subroutine list_select
end module tr_handlers
program tree
! TREE
! Demo of a tree
use tr_handlers
implicit none
character(len=35) :: line
integer(kind=c_int) :: i, ltr, j
integer(kind=type_kind), dimension(6) :: ctypes
character(len=20), dimension(6) :: titles
integer(kind=c_int), dimension(6) :: sortable, editable
! Initialize GTK+
call gtk_init()
! Create a window that will hold the widget system
ihwin=hl_gtk_window_new('Tree view demo'//c_null_char, destroy=c_funloc(my_destroy))
! Now make a column box & put it into the window
base = hl_gtk_box_new()
call gtk_container_add(ihwin, base)
! Now make a multi column list with multiple selections enabled
ctypes = (/ G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT, G_TYPE_FLOAT, &
& G_TYPE_UINT64, G_TYPE_BOOLEAN /)
sortable = (/ FALSE, TRUE, FALSE, FALSE, FALSE, TRUE /)
editable = (/ TRUE, FALSE, TRUE, FALSE, FALSE, FALSE /)
titles(1) = "Name"
titles(2) = "N"
titles(3) = "3N"
titles(4) = "Log(n)"
titles(5) = "N**4"
titles(6) = "Odd?"
ihlist = hl_gtk_tree_new(ihscrollcontain, types=ctypes, &
& changed=c_funloc(list_select),&
& multiple=TRUE, height=250_c_int, swidth=400_c_int, titles=titles, &
& sortable=sortable, editable=editable)
! Now put 10 top level rows into it
do i=1,10
call hl_gtk_tree_ins(ihlist, row = (/ -1_c_int /))
write(line,"('List entry number ',I0)") i
ltr=len_trim(line)+1
line(ltr:ltr)=c_null_char
call hl_gtk_tree_set_cell(ihlist, absrow=i-1_c_int, col=0_c_int, &
& svalue=line)
call hl_gtk_tree_set_cell(ihlist, absrow=i-1_c_int, col=1_c_int, &
& ivalue=i)
call hl_gtk_tree_set_cell(ihlist, absrow=i-1_c_int, col=2_c_int, &
& ivalue=3_c_int*i)
call hl_gtk_tree_set_cell(ihlist, absrow=i-1_c_int, col=3_c_int, &
& fvalue=log10(real(i)))
call hl_gtk_tree_set_cell(ihlist, absrow=i-1_c_int, col=4_c_int, &
& l64value=int(i,c_int64_t)**4)
call hl_gtk_tree_set_cell(ihlist, absrow=i-1_c_int, col=5_c_int, &
& ivalue=mod(i,2_c_int))
end do
! Add some child rows
do j = 2, 6, 2
call hl_gtk_tree_ins(ihlist, row = (/ j, -1_c_int /), count=5)
do i = 1, 5
write(line,"('List entry number',I0,':',I0)") j+1,i
ltr=len_trim(line)+1
line(ltr:ltr)=c_null_char
call hl_gtk_tree_set_cell(ihlist, row=(/ j, i-1_c_int/), col=0_c_int, &
& svalue=line)
call hl_gtk_tree_set_cell(ihlist, row=(/ j, i-1_c_int/), col=1_c_int, &
& ivalue=i)
call hl_gtk_tree_set_cell(ihlist, row=(/ j, i-1_c_int/), col=2_c_int, &
& ivalue=3_c_int*i)
call hl_gtk_tree_set_cell(ihlist, row=(/ j, i-1_c_int/), col=3_c_int, &
& fvalue=log10(real(i)))
call hl_gtk_tree_set_cell(ihlist, row=(/ j, i-1_c_int/), col=4_c_int, &
& l64value=int(i,c_int64_t)**4)
call hl_gtk_tree_set_cell(ihlist, row=(/ j, i-1_c_int/), col=5_c_int, &
& ivalue=mod(i,2_c_int))
end do
end do
! It is the scrollcontainer that is placed into the box.
call hl_gtk_box_pack(base, ihscrollcontain)
! Add a note about editable columns
lbl = gtk_label_new("The ""Name"" and ""3N"" columns are editable"&
& //c_null_char)
call hl_gtk_box_pack(base, lbl)
! Delete selected row
dbut = hl_gtk_button_new("Delete selected row"//c_null_char, &
& clicked=c_funloc(del_row), &
& tooltip="Delete the selected row"//c_null_char, sensitive=FALSE)
call hl_gtk_box_pack(base, dbut)
! Also a quit button
qbut = hl_gtk_button_new("Quit"//c_null_char, clicked=c_funloc(my_destroy))
call hl_gtk_box_pack(base,qbut)
! realize the window
call gtk_widget_show_all(ihwin)
! Event loop
call gtk_main()
end program tree