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fe1e8a37ee
fltk/src/Fl_Browser_.cxx
Michael R Sweet fe1e8a37ee Fl_Browser_ and friends now support FL_WHEN_ENTER_KEY for both Enter/Return 
and double-clicks (STR #1818)



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5992 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2007-12-15 16:20:16 +00:00

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//
// "$Id$"
//
// Base Browser widget class for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2006 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#define DISPLAY_SEARCH_BOTH_WAYS_AT_ONCE
#include <stdio.h>
#include <FL/Fl.H>
#include <FL/Fl_Widget.H>
#include <FL/Fl_Browser_.H>
#include <FL/fl_draw.H>
// This is the base class for browsers. To be useful it must be
// subclassed and several virtual functions defined. The
// Forms-compatable browser and the file chooser's browser are
// subclassed off of this.
// Yes, I know this should be a template...
// This has been designed so that the subclass has complete control
// over the storage of the data, although because next() and prev()
// functions are used to index, it works best as a linked list or as a
// large block of characters in which the line breaks must be searched
// for.
// A great deal of work has been done so that the "height" of a data
// object does not need to be determined until it is drawn. This was
// done for the file chooser, because the height requires doing stat()
// to see if the file is a directory, which can be annoyingly slow
// over the network.
/* redraw bits:
1 = redraw children (the scrollbar)
2 = redraw one or two items
4 = redraw all items
*/
static void scrollbar_callback(Fl_Widget* s, void*) {
((Fl_Browser_*)(s->parent()))->position(int(((Fl_Scrollbar*)s)->value()));
}
static void hscrollbar_callback(Fl_Widget* s, void*) {
((Fl_Browser_*)(s->parent()))->hposition(int(((Fl_Scrollbar*)s)->value()));
}
// Scrollbar size should be part of the Fl class, but is left here for
// binary compatibility in 1.1.x - M. Sweet
int Fl_Browser_::scrollbar_width_ = 16;
// Get the standard scrollbar size
int Fl::scrollbar_size() {
return Fl_Browser_::scrollbar_width();
}
// Set the standard scrollbar size
void Fl::scrollbar_size(int W) {
Fl_Browser_::scrollbar_width(W);
}
// return where to draw the actual box:
void Fl_Browser_::bbox(int& X, int& Y, int& W, int& H) const {
Fl_Boxtype b = box() ? box() : FL_DOWN_BOX;
X = x()+Fl::box_dx(b);
Y = y()+Fl::box_dy(b);
W = w()-Fl::box_dw(b);
H = h()-Fl::box_dh(b);
if (scrollbar.visible()) {
W -= scrollbar_width_;
if (scrollbar.align() & FL_ALIGN_LEFT) X += scrollbar_width_;
}
if (W < 0) W = 0;
if (hscrollbar.visible()) {
H -= scrollbar_width_;
if (scrollbar.align() & FL_ALIGN_TOP) Y += scrollbar_width_;
}
if (H < 0) H = 0;
}
int Fl_Browser_::leftedge() const {
int X, Y, W, H; bbox(X, Y, W, H);
return X;
}
// The scrollbars may be moved again by draw(), since each one's size
// depends on whether the other is visible or not. This skips over
// Fl_Group::resize since it moves the scrollbars uselessly.
void Fl_Browser_::resize(int X, int Y, int W, int H) {
Fl_Widget::resize(X, Y, W, H);
// move the scrollbars so they can respond to events:
bbox(X,Y,W,H);
scrollbar.resize(
scrollbar.align()&FL_ALIGN_LEFT ? X-scrollbar_width_ : X+W,
Y, scrollbar_width_, H);
hscrollbar.resize(
X, scrollbar.align()&FL_ALIGN_TOP ? Y-scrollbar_width_ : Y+H,
W, scrollbar_width_);
}
// Cause minimal update to redraw the given item:
void Fl_Browser_::redraw_line(void* l) {
if (!redraw1 || redraw1 == l) {redraw1 = l; damage(FL_DAMAGE_EXPOSE);}
else if (!redraw2 || redraw2 == l) {redraw2 = l; damage(FL_DAMAGE_EXPOSE);}
else damage(FL_DAMAGE_SCROLL);
}
// Figure out top() based on position():
void Fl_Browser_::update_top() {
if (!top_) top_ = item_first();
if (position_ != real_position_) {
void* l;
int ly;
int yy = position_;
// start from either head or current position, whichever is closer:
if (!top_ || yy <= (real_position_/2)) {
l = item_first();
ly = 0;
} else {
l = top_;
ly = real_position_-offset_;
}
if (!l) {
top_ = 0;
offset_ = 0;
real_position_ = 0;
} else {
int hh = item_quick_height(l);
// step through list until we find line containing this point:
while (ly > yy) {
void* l1 = item_prev(l);
if (!l1) {ly = 0; break;} // hit the top
l = l1;
hh = item_quick_height(l);
ly -= hh;
}
while ((ly+hh) <= yy) {
void* l1 = item_next(l);
if (!l1) {yy = ly+hh-1; break;}
l = l1;
ly += hh;
hh = item_quick_height(l);
}
// top item must *really* be visible, use slow height:
for (;;) {
hh = item_height(l);
if ((ly+hh) > yy) break; // it is big enough to see
// go up to top of previous item:
void* l1 = item_prev(l);
if (!l1) {ly = yy = 0; break;} // hit the top
l = l1; yy = position_ = ly = ly-item_quick_height(l);
}
// use it:
top_ = l;
offset_ = yy-ly;
real_position_ = yy;
}
damage(FL_DAMAGE_SCROLL);
}
}
// Change position(), top() will update when update_top() is called
// (probably by draw() or handle()):
void Fl_Browser_::position(int yy) {
if (yy < 0) yy = 0;
if (yy == position_) return;
position_ = yy;
if (yy != real_position_) redraw_lines();
}
void Fl_Browser_::hposition(int xx) {
if (xx < 0) xx = 0;
if (xx == hposition_) return;
hposition_ = xx;
if (xx != real_hposition_) redraw_lines();
}
// Tell whether item is currently displayed:
int Fl_Browser_::displayed(void* p) const {
int X, Y, W, H; bbox(X, Y, W, H);
int yy = H+offset_;
for (void* l = top_; l && yy > 0; l = item_next(l)) {
if (l == p) return 1;
yy -= item_height(l);
}
return 0;
}
// Ensure this item is displayed:
// Messy because we have no idea if it is before top or after bottom:
void Fl_Browser_::display(void* p) {
// First special case - want to display first item in the list?
update_top();
if (p == item_first()) {position(0); return;}
int X, Y, W, H, Yp; bbox(X, Y, W, H);
void* l = top_;
Y = Yp = -offset_;
int h1;
// 2nd special case - want to display item already displayed at top of browser?
if (l == p) {position(real_position_+Y); return;} // scroll up a bit
// 3rd special case - want to display item just above top of browser?
void* lp = item_prev(l);
if (lp == p) {position(real_position_+Y-item_quick_height(lp)); return;}
#ifdef DISPLAY_SEARCH_BOTH_WAYS_AT_ONCE
// search for item. We search both up and down the list at the same time,
// this evens up the execution time for the two cases - the old way was
// much slower for going up than for going down.
while (l || lp) {
if (l) {
h1 = item_quick_height(l);
if (l == p) {
if (Y <= H) { // it is visible or right at bottom
Y = Y+h1-H; // find where bottom edge is
if (Y > 0) position(real_position_+Y); // scroll down a bit
} else {
position(real_position_+Y-(H-h1)/2); // center it
}
return;
}
Y += h1;
l = item_next(l);
}
if (lp) {
h1 = item_quick_height(lp);
Yp -= h1;
if (lp == p) {
if ((Yp + h1) >= 0) position(real_position_+Yp);
else position(real_position_+Yp-(H-h1)/2);
return;
}
lp = item_prev(lp);
}
}
#else
// Old version went forwards and then backwards:
// search forward for it:
l = top_;
for (; l; l = item_next(l)) {
h1 = item_quick_height(l);
if (l == p) {
if (Y <= H) { // it is visible or right at bottom
Y = Y+h1-H; // find where bottom edge is
if (Y > 0) position(real_position_+Y); // scroll down a bit
} else {
position(real_position_+Y-(H-h1)/2); // center it
}
return;
}
Y += h1;
}
// search backward for it, if found center it:
l = lp;
Y = -offset_;
for (; l; l = item_prev(l)) {
h1 = item_quick_height(l);
Y -= h1;
if (l == p) {
if ((Y + h1) >= 0) position(real_position_+Y);
else position(real_position_+Y-(H-h1)/2);
return;
}
}
#endif
}
// redraw, has side effect of updating top and setting scrollbar:
void Fl_Browser_::draw() {
int drawsquare = 0;
update_top();
int full_width_ = full_width();
int full_height_ = full_height();
int X, Y, W, H; bbox(X, Y, W, H);
int dont_repeat = 0;
J1:
if (damage() & FL_DAMAGE_ALL) { // redraw the box if full redraw
Fl_Boxtype b = box() ? box() : FL_DOWN_BOX;
draw_box(b, x(), y(), w(), h(), color());
drawsquare = 1;
}
// see if scrollbar needs to be switched on/off:
if ((has_scrollbar_ & VERTICAL) && (
(has_scrollbar_ & ALWAYS_ON) || position_ || full_height_ > H)) {
if (!scrollbar.visible()) {
scrollbar.set_visible();
drawsquare = 1;
bbox(X, Y, W, H);
}
} else {
top_ = item_first(); real_position_ = offset_ = 0;
if (scrollbar.visible()) {
scrollbar.clear_visible();
clear_damage((uchar)(damage()|FL_DAMAGE_SCROLL));
}
}
if ((has_scrollbar_ & HORIZONTAL) && (
(has_scrollbar_ & ALWAYS_ON) || hposition_ || full_width_ > W)) {
if (!hscrollbar.visible()) {
hscrollbar.set_visible();
drawsquare = 1;
bbox(X, Y, W, H);
}
} else {
real_hposition_ = 0;
if (hscrollbar.visible()) {
hscrollbar.clear_visible();
clear_damage((uchar)(damage()|FL_DAMAGE_SCROLL));
}
}
// Check the vertical scrollbar again, just in case it needs to be drawn
// because the horizontal one is drawn. There should be a cleaner way
// to do this besides copying the same code...
if ((has_scrollbar_ & VERTICAL) && (
(has_scrollbar_ & ALWAYS_ON) || position_ || full_height_ > H)) {
if (!scrollbar.visible()) {
scrollbar.set_visible();
drawsquare = 1;
bbox(X, Y, W, H);
}
} else {
top_ = item_first(); real_position_ = offset_ = 0;
if (scrollbar.visible()) {
scrollbar.clear_visible();
clear_damage((uchar)(damage()|FL_DAMAGE_SCROLL));
}
}
bbox(X, Y, W, H);
fl_clip(X, Y, W, H);
// for each line, draw it if full redraw or scrolled. Erase background
// if not a full redraw or if it is selected:
void* l = top();
int yy = -offset_;
for (; l && yy < H; l = item_next(l)) {
int hh = item_height(l);
if (hh <= 0) continue;
if ((damage()&(FL_DAMAGE_SCROLL|FL_DAMAGE_ALL)) || l == redraw1 || l == redraw2) {
if (item_selected(l)) {
fl_color(active_r() ? selection_color() : fl_inactive(selection_color()));
fl_rectf(X, yy+Y, W, hh);
} else if (!(damage()&FL_DAMAGE_ALL)) {
fl_push_clip(X, yy+Y, W, hh);
draw_box(box() ? box() : FL_DOWN_BOX, x(), y(), w(), h(), color());
fl_pop_clip();
}
item_draw(l, X-hposition_, yy+Y, W+hposition_, hh);
if (l == selection_ && Fl::focus() == this) {
draw_box(FL_BORDER_FRAME, X, yy+Y, W, hh, color());
draw_focus(FL_NO_BOX, X, yy+Y, W+1, hh+1);
}
int ww = item_width(l);
if (ww > max_width) {max_width = ww; max_width_item = l;}
}
yy += hh;
}
// erase the area below last line:
if (!(damage()&FL_DAMAGE_ALL) && yy < H) {
fl_push_clip(X, yy+Y, W, H-yy);
draw_box(box() ? box() : FL_DOWN_BOX, x(), y(), w(), h(), color());
fl_pop_clip();
}
fl_pop_clip();
redraw1 = redraw2 = 0;
if (!dont_repeat) {
dont_repeat = 1;
// see if changes to full_height caused by calls to slow_height
// caused scrollbar state to change, in which case we have to redraw:
full_height_ = full_height();
full_width_ = full_width();
if ((has_scrollbar_ & VERTICAL) &&
((has_scrollbar_ & ALWAYS_ON) || position_ || full_height_>H)) {
if (!scrollbar.visible()) { damage(FL_DAMAGE_ALL); goto J1; }
} else {
if (scrollbar.visible()) { damage(FL_DAMAGE_ALL); goto J1; }
}
if ((has_scrollbar_ & HORIZONTAL) &&
((has_scrollbar_ & ALWAYS_ON) || hposition_ || full_width_>W)) {
if (!hscrollbar.visible()) { damage(FL_DAMAGE_ALL); goto J1; }
} else {
if (hscrollbar.visible()) { damage(FL_DAMAGE_ALL); goto J1; }
}
}
// update the scrollbars and redraw them:
int dy = top_ ? item_quick_height(top_) : 0; if (dy < 10) dy = 10;
if (scrollbar.visible()) {
scrollbar.damage_resize(
scrollbar.align()&FL_ALIGN_LEFT ? X-scrollbar_width_ : X+W,
Y, scrollbar_width_, H);
scrollbar.value(position_, H, 0, full_height_);
scrollbar.linesize(dy);
if (drawsquare) draw_child(scrollbar);
else update_child(scrollbar);
}
if (hscrollbar.visible()) {
hscrollbar.damage_resize(
X, scrollbar.align()&FL_ALIGN_TOP ? Y-scrollbar_width_ : Y+H,
W, scrollbar_width_);
hscrollbar.value(hposition_, W, 0, full_width_);
hscrollbar.linesize(dy);
if (drawsquare) draw_child(hscrollbar);
else update_child(hscrollbar);
}
// draw that little square between the scrollbars:
if (drawsquare && scrollbar.visible() && hscrollbar.visible()) {
fl_color(parent()->color());
fl_rectf(scrollbar.x(), hscrollbar.y(), scrollbar_width_,scrollbar_width_);
}
real_hposition_ = hposition_;
}
// Quick way to delete and reset everything:
void Fl_Browser_::new_list() {
top_ = 0;
position_ = real_position_ = 0;
hposition_ = real_hposition_ = 0;
selection_ = 0;
offset_ = 0;
max_width = 0;
max_width_item = 0;
redraw_lines();
}
// Tell it that this item is going away, and that this must remove
// all pointers to it:
void Fl_Browser_::deleting(void* l) {
if (displayed(l)) {
redraw_lines();
if (l == top_) {
real_position_ -= offset_;
offset_ = 0;
top_ = item_next(l);
if (!top_) top_ = item_prev(l);
}
} else {
// we don't know where this item is, recalculate top...
real_position_ = 0;
offset_ = 0;
top_ = 0;
}
if (l == selection_) selection_ = 0;
if (l == max_width_item) {max_width_item = 0; max_width = 0;}
}
void Fl_Browser_::replacing(void* a, void* b) {
redraw_line(a);
if (a == selection_) selection_ = b;
if (a == top_) top_ = b;
if (a == max_width_item) {max_width_item = 0; max_width = 0;}
}
void Fl_Browser_::swapping(void* a, void* b) {
redraw_line(a);
redraw_line(b);
if (a == selection_) selection_ = b;
else if (b == selection_) selection_ = a;
if (a == top_) top_ = b;
else if (b == top_) top_ = a;
}
void Fl_Browser_::inserting(void* a, void* b) {
if (displayed(a)) redraw_lines();
if (a == top_) top_ = b;
}
void* Fl_Browser_::find_item(int my) {
update_top();
int X, Y, W, H; bbox(X, Y, W, H);
void* l;
int yy = Y-offset_;
for (l = top_; l; l = item_next(l)) {
int hh = item_height(l); if (hh <= 0) continue;
yy += hh;
if (my <= yy || yy>=(Y+H)) return l;
}
return 0;
}
int Fl_Browser_::select(void* l, int i, int docallbacks) {
if (type() == FL_MULTI_BROWSER) {
if (selection_ != l) {
if (selection_) redraw_line(selection_);
selection_ = l;
redraw_line(l);
}
if ((!i)==(!item_selected(l))) return 0;
item_select(l, i);
redraw_line(l);
} else {
if (i && selection_ == l) return 0;
if (!i && selection_ != l) return 0;
if (selection_) {
item_select(selection_, 0);
redraw_line(selection_);
selection_ = 0;
}
if (i) {
item_select(l, 1);
selection_ = l;
redraw_line(l);
display(l);
}
}
if (docallbacks) {
set_changed();
do_callback();
}
return 1;
}
int Fl_Browser_::deselect(int docallbacks) {
if (type() == FL_MULTI_BROWSER) {
int change = 0;
for (void* p = item_first(); p; p = item_next(p))
change |= select(p, 0, docallbacks);
return change;
} else {
if (!selection_) return 0;
item_select(selection_, 0);
redraw_line(selection_);
selection_ = 0;
return 1;
}
}
int Fl_Browser_::select_only(void* l, int docallbacks) {
if (!l) return deselect(docallbacks);
int change = 0;
if (type() == FL_MULTI_BROWSER) {
for (void* p = item_first(); p; p = item_next(p))
if (p != l) change |= select(p, 0, docallbacks);
}
change |= select(l, 1, docallbacks);
display(l);
return change;
}
int Fl_Browser_::handle(int event) {
// must do shortcuts first or the scrollbar will get them...
if (event == FL_ENTER || event == FL_LEAVE) return 1;
if (event == FL_KEYBOARD && type() >= FL_HOLD_BROWSER) {
void* l1 = selection_;
void* l = l1; if (!l) l = top_; if (!l) l = item_first();
if (l) {
if (type()==FL_HOLD_BROWSER) {
switch (Fl::event_key()) {
case FL_Down:
while ((l = item_next(l)))
if (item_height(l)>0) {select_only(l, when()); break;}
return 1;
case FL_Up:
while ((l = item_prev(l))) if (item_height(l)>0) {
select_only(l, when()); break;}
return 1;
}
} else {
switch (Fl::event_key()) {
case FL_Enter:
case FL_KP_Enter:
select_only(l, when() & ~FL_WHEN_ENTER_KEY);
if (when() & FL_WHEN_ENTER_KEY) {
set_changed();
do_callback();
}
return 1;
case ' ':
selection_ = l;
select(l, !item_selected(l), when() & ~FL_WHEN_ENTER_KEY);
return 1;
case FL_Down:
while ((l = item_next(l))) {
if (Fl::event_state(FL_SHIFT|FL_CTRL))
select(l, l1 ? item_selected(l1) : 1, when());
if (item_height(l)>0) goto J1;
}
return 1;
case FL_Up:
while ((l = item_prev(l))) {
if (Fl::event_state(FL_SHIFT|FL_CTRL))
select(l, l1 ? item_selected(l1) : 1, when());
if (item_height(l)>0) goto J1;
}
return 1;
J1:
if (selection_) redraw_line(selection_);
selection_ = l; redraw_line(l);
display(l);
return 1;
}
}
}
}
if (Fl_Group::handle(event)) return 1;
int X, Y, W, H; bbox(X, Y, W, H);
int my;
// NOTE:
// instead of:
// change = select_only(find_item(my), when() & FL_WHEN_CHANGED)
// we use the construct:
// change = select_only(find_item(my), 0);
// if (change && (when() & FL_WHEN_CHANGED)) {
// set_changed();
// do_callback();
// }
// See str #834
// The first form calls the callback *before* setting change.
// The callback may execute an Fl::wait(), resulting in another
// call of Fl_Browser_::handle() for the same widget. The sequence
// of events can be an FL_PUSH followed by an FL_RELEASE.
// This second call of Fl_Browser_::handle() may result in a -
// somewhat unexpected - second concurrent invocation of the callback.
static char change;
static char whichway;
static int py;
switch (event) {
case FL_PUSH:
if (!Fl::event_inside(X, Y, W, H)) return 0;
if (Fl::visible_focus()) {
Fl::focus(this);
redraw();
}
my = py = Fl::event_y();
change = 0;
if (type() == FL_NORMAL_BROWSER || !top_)
;
else if (type() != FL_MULTI_BROWSER) {
change = select_only(find_item(my), 0);
if (change && (when() & FL_WHEN_CHANGED)) {
set_changed();
do_callback();
}
} else {
void* l = find_item(my);
whichway = 1;
if (Fl::event_state(FL_CTRL)) { // toggle selection:
TOGGLE:
if (l) {
whichway = !item_selected(l);
change = select(l, whichway, 0);
if (change && (when() & FL_WHEN_CHANGED)) {
set_changed();
do_callback();
}
}
} else if (Fl::event_state(FL_SHIFT)) { // extend selection:
if (l == selection_) goto TOGGLE;
// state of previous selection determines new value:
whichway = l ? !item_selected(l) : 1;
// see which of the new item or previous selection is earlier,
// by searching from the previous forward for this one:
int down;
if (!l) down = 1;
else {for (void* m = selection_; ; m = item_next(m)) {
if (m == l) {down = 1; break;}
if (!m) {down = 0; break;}
}}
if (down) {
for (void* m = selection_; m != l; m = item_next(m))
select(m, whichway, when() & FL_WHEN_CHANGED);
} else {
void* e = selection_;
for (void* m = item_next(l); m; m = item_next(m)) {
select(m, whichway, when() & FL_WHEN_CHANGED);
if (m == e) break;
}
}
// do the clicked item last so the select box is around it:
change = 1;
if (l) select(l, whichway, when() & FL_WHEN_CHANGED);
} else { // select only this item
change = select_only(l, 0);
if (change && (when() & FL_WHEN_CHANGED)) {
set_changed();
do_callback();
}
}
}
return 1;
case FL_DRAG:
// do the scrolling first:
my = Fl::event_y();
if (my < Y && my < py) {
int p = real_position_+my-Y;
if (p<0) p = 0;
position(p);
} else if (my > (Y+H) && my > py) {
int p = real_position_+my-(Y+H);
int hh = full_height()-H; if (p > hh) p = hh;
if (p<0) p = 0;
position(p);
}
if (type() == FL_NORMAL_BROWSER || !top_)
;
else if (type() == FL_MULTI_BROWSER) {
void* l = find_item(my);
void* t; void* b; // this will be the range to change
if (my > py) { // go down
t = selection_ ? item_next(selection_) : 0;
b = l ? item_next(l) : 0;
} else { // go up
t = l;
b = selection_;
}
for (; t && t != b; t = item_next(t)) {
char change_t;
change_t = select(t, whichway, 0);
change |= change_t;
if (change_t && (when() & FL_WHEN_CHANGED)) {
set_changed();
do_callback();
}
}
if (l) selection_ = l;
} else {
void* l1 = selection_;
void* l =
(Fl::event_x()<x() || Fl::event_x()>x()+w()) ? selection_ :
find_item(my);
change = (l != l1);
select_only(l, when() & FL_WHEN_CHANGED);
}
py = my;
return 1;
case FL_RELEASE:
if (type() == FL_SELECT_BROWSER) {
void* t = selection_; deselect(); selection_ = t;
}
if (change) {
set_changed();
if (when() & FL_WHEN_RELEASE) do_callback();
} else {
if (when() & FL_WHEN_NOT_CHANGED) do_callback();
}
// double click calls the callback: (like Enter Key)
if (Fl::event_clicks() && (when() & FL_WHEN_ENTER_KEY)) {
set_changed();
do_callback();
}
return 1;
case FL_FOCUS:
case FL_UNFOCUS:
if (type() >= FL_HOLD_BROWSER && Fl::visible_focus()) {
redraw();
return 1;
} else return 0;
}
return 0;
}
Fl_Browser_::Fl_Browser_(int X, int Y, int W, int H, const char* l)
: Fl_Group(X, Y, W, H, l),
scrollbar(0, 0, 0, 0, 0), // they will be resized by draw()
hscrollbar(0, 0, 0, 0, 0)
{
box(FL_NO_BOX);
align(FL_ALIGN_BOTTOM);
position_ = real_position_ = 0;
hposition_ = real_hposition_ = 0;
offset_ = 0;
top_ = 0;
when(FL_WHEN_RELEASE_ALWAYS);
selection_ = 0;
color(FL_BACKGROUND2_COLOR, FL_SELECTION_COLOR);
scrollbar.callback(scrollbar_callback);
//scrollbar.align(FL_ALIGN_LEFT|FL_ALIGN_BOTTOM); // back compatability?
hscrollbar.callback(hscrollbar_callback);
hscrollbar.type(FL_HORIZONTAL);
textfont_ = FL_HELVETICA;
textsize_ = (uchar)FL_NORMAL_SIZE;
textcolor_ = FL_FOREGROUND_COLOR;
has_scrollbar_ = BOTH;
max_width = 0;
max_width_item = 0;
redraw1 = redraw2 = 0;
end();
}
// Default versions of some of the virtual functions:
int Fl_Browser_::item_quick_height(void* l) const {
return item_height(l);
}
int Fl_Browser_::incr_height() const {
return item_quick_height(item_first());
}
int Fl_Browser_::full_height() const {
int t = 0;
for (void* p = item_first(); p; p = item_next(p))
t += item_quick_height(p);
return t;
}
int Fl_Browser_::full_width() const {
return max_width;
}
void Fl_Browser_::item_select(void*, int) {}
int Fl_Browser_::item_selected(void* l) const {return l==selection_;}
//
// End of "$Id$".
//
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