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Add headline menu item style (#1059)

Browse Source 
A menu item can be designated as a headline.
Fully integrated and used in Fluid.
This commit is contained in:
Matthias Melcher
2025-11-19 16:57:02 +01:00
parent 2182bd60c0
commit 94008f57c3
9 changed files with 153 additions and 30 deletions
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26
FL/Fl_Menu_Item.H
View File

@@ -36,8 +36,10 @@ enum { // values for flags:
FL_SUBMENU = 0x40, ///< Item is a submenu to other items
FL_MENU_DIVIDER = 0x80, ///< Creates divider line below this item. Also ends a group of radio buttons
FL_MENU_HORIZONTAL = 0x100, ///< reserved, do not use
FL_MENU_CHATTY = 0x200 ///< Menu Item receives additional callbacks
///< Note: \b ALL other bits in \p flags are reserved: do not use them for your own purposes!
FL_MENU_CHATTY = 0x200, ///< Menu Item receives additional callbacks
FL_MENU_HEADLINE = 0x400, ///< Mark menu item as a headline
///<
///< Note: All other bits in `flags` are reserved: do not use them for your own purposes!
};
class Fl_Menu_;
@@ -460,9 +462,29 @@ struct FL_EXPORT Fl_Menu_Item {
the menu item to appear grayed-out.
*/
void deactivate() {flags |= FL_MENU_INACTIVE;}
/** Returns non 0 if FL_INACTIVE and FL_INVISIBLE are cleared, 0 otherwise. */
int activevisible() const {return !(flags & (FL_MENU_INACTIVE|FL_MENU_INVISIBLE));}
/** Returns non-0 if the menu item can be selected.
Return 0 if the menu is hidden, inactive, or a headline.
*/
int selectable() const {return !(flags & (FL_MENU_INACTIVE|FL_MENU_INVISIBLE|FL_MENU_HEADLINE));}
/**
Set menu item as a headline.
A menu item can be designated as a headline. Headline items are not selectable,
but they are also not grayed out. To visually distinguish them, add
indentation and apply bold or italic styling.
*/
void headline(bool yes) {
if (yes) flags |= FL_MENU_HEADLINE; else flags &= ~FL_MENU_HEADLINE;
}
/**
Return non 0 if this menu item is used as a headline.
*/
int headline() const { return (flags & FL_MENU_HEADLINE); }
// compatibility for FLUID so it can set the image of a menu item...
/** Compatibility API for FLUID, same as image->label(this).

5
fluid/nodes/Menu_Node.cxx
View File

@@ -128,7 +128,7 @@ void Input_Choice_Node::build_menu() {
}
m->shortcut(((Fl_Button*)(i->o))->shortcut());
m->callback(nullptr,(void*)i);
m->flags = i->flags();
m->flags = i->flags() & ~FL_MENU_HEADLINE;
m->labelfont(i->o->labelfont());
m->labelsize(i->o->labelsize());
m->labelcolor(i->o->labelcolor());
@@ -467,6 +467,7 @@ int Menu_Item_Node::flags() {
else i |= FL_SUBMENU_POINTER;
}
if (hotspot()) i |= FL_MENU_DIVIDER;
if (menu_headline()) i |= FL_MENU_HEADLINE;
return i;
}
@@ -697,7 +698,7 @@ void Menu_Base_Node::build_menu() {
}
m->shortcut(((Fl_Button*)(i->o))->shortcut());
m->callback(nullptr,(void*)i);
m->flags = i->flags() | i->o->type();
m->flags = (i->flags() | i->o->type()) & ~FL_MENU_HEADLINE;
m->labelfont(i->o->labelfont());
m->labelsize(i->o->labelsize());
m->labelcolor(i->o->labelcolor());

3
fluid/nodes/Widget_Node.cxx
View File

@@ -2007,6 +2007,7 @@ void Widget_Node::write_properties(fld::io::Project_Writer &f) {
if (!o->active()) f.write_string("deactivate");
if (resizable()) f.write_string("resizable");
if (hotspot()) f.write_string(is_a(Type::Menu_Item) ? "divider" : "hotspot");
if (menu_headline()) f.write_string("headline");
for (int n=0; n < NUM_EXTRA_CODE; n++) if (extra_code(n)) {
f.write_indent(level+1);
f.write_string("code%d",n);
@@ -2179,6 +2180,8 @@ void Widget_Node::read_property(fld::io::Project_Reader &f, const char *c) {
resizable(1);
} else if (!strcmp(c,"hotspot") || !strcmp(c, "divider")) {
hotspot(1);
} else if (!strcmp(c,"headline")) {
menu_headline(true);
} else if (!strcmp(c,"class")) {
subclass(f.read_word());
} else if (!strcmp(c,"shortcut")) {

6
fluid/nodes/Widget_Node.h
View File

@@ -51,6 +51,8 @@ class Widget_Node : public Node
const char *inactive_name_;
uchar hotspot_;
bool menu_headline_ { false };
protected:
/// This variable is set for visible windows in batch mode.
@@ -97,11 +99,15 @@ public:
void image_name(const char *);
const char *inactive_name() const {return inactive_name_;}
void inactive_name(const char *);
// Note: hotspot is misused by menu items to indicate a divider
uchar hotspot() const {return hotspot_;}
void hotspot(uchar v) {hotspot_ = v;}
uchar resizable() const;
void resizable(uchar v);
bool menu_headline() const { return menu_headline_; }
void menu_headline(bool v) { menu_headline_ = v; }
virtual int textstuff(int what, Fl_Font &, int &, Fl_Color &);
virtual Fl_Menu_Item *subtypes();

47
fluid/panels/widget_panel.cxx
View File

@@ -620,7 +620,7 @@ static void cb_Browse1(Fl_Button* o, void* v) {
Fl_Group *wp_gui_alignment=(Fl_Group *)0;
Fl_Menu_Item menu_[] = {
{" Image Alignment ", 0, 0, (void*)((fl_intptr_t)0xFFFFFFFF), 1, (uchar)FL_NORMAL_LABEL, 2, 10, 0},
{" Image Alignment ", 0, 0, (void*)((fl_intptr_t)-1), 1024, (uchar)FL_NORMAL_LABEL, 1, 10, 0},
{"image over text", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_IMAGE_OVER_TEXT), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"text over image", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_TEXT_OVER_IMAGE), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"text next to image", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_TEXT_NEXT_TO_IMAGE), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
@@ -630,7 +630,7 @@ Fl_Menu_Item menu_[] = {
};
Fl_Menu_Item menu_1[] = {
{" Inside && Outside ", 0, 0, (void*)((fl_intptr_t)0xFFFFFFFF), 1, (uchar)FL_NORMAL_LABEL, 2, 10, 0},
{" Inside && Outside ", 0, 0, (void*)((fl_intptr_t)-1), 1024, (uchar)FL_NORMAL_LABEL, 1, 10, 0},
{"top left", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_TOP_LEFT), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"top", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_TOP), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"top right", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_TOP_RIGHT), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
@@ -640,7 +640,7 @@ Fl_Menu_Item menu_1[] = {
{"bottom left", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_BOTTOM_LEFT), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"bottom", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_BOTTOM), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"bottom right", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_BOTTOM_RIGHT), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{" Outside Alignment ", 0, 0, (void*)((fl_intptr_t)0xFFFFFFFF), 1, (uchar)FL_NORMAL_LABEL, 2, 10, 0},
{" Outside Alignment ", 0, 0, (void*)((fl_intptr_t)-1), 1024, (uchar)FL_NORMAL_LABEL, 1, 10, 0},
{"left top", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_LEFT_TOP), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"right top", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_RIGHT_TOP), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
{"left bottom", 0, 0, (void*)((fl_intptr_t)FL_ALIGN_LEFT_BOTTOM), 0, (uchar)FL_NORMAL_LABEL, 0, 9, 0},
@@ -1454,9 +1454,12 @@ static void cb_Active(Fl_Light_Button* o, void* v) {
static void cb_Resizable(Fl_Light_Button* o, void* v) {
if (v == LOAD) {
if (current_widget->is_a(Type::Menu_Item)) {o->deactivate(); return;}
if (current_widget->is_a(Type::Menu_Item)) {
o->hide();
return;
}
if (numselected > 1) {o->deactivate(); return;}
o->activate();
o->show();
o->value(current_widget->resizable());
} else {
Fluid.proj.undo.checkpoint();
@@ -1465,6 +1468,31 @@ static void cb_Resizable(Fl_Light_Button* o, void* v) {
}
}
static void cb_Headline(Fl_Light_Button* o, void* v) {
if (v == LOAD) {
if (!current_widget->is_a(Type::Menu_Item)) {
o->hide();
return;
}
o->show();
o->value(current_widget->menu_headline());
} else {
int mod = 0;
int n = o->value();
for (Widget_Node *q: Fluid.proj.tree.all_selected_widgets()) {
if (q->is_a(Type::Menu_Item)) {
if (!mod) {
mod = 1;
Fluid.proj.undo.checkpoint();
}
q->menu_headline(n);
q->redraw();
}
}
if (mod) Fluid.proj.set_modflag(1);
}
}
static void cb_Hotspot(Fl_Light_Button* o, void* v) {
if (v == LOAD) {
if (numselected > 1) {o->deactivate(); return;}
@@ -2735,6 +2763,14 @@ Fl_Double_Window* make_widget_panel() {
o->callback((Fl_Callback*)cb_Resizable);
o->when(FL_WHEN_CHANGED);
} // Fl_Light_Button* o
{ Fl_Light_Button* o = new Fl_Light_Button(225, 260, 75, 20, "Headline");
o->tooltip("Make a menu item the headline of a menu\nunselectable, but not grayed out");
o->selection_color((Fl_Color)1);
o->labelsize(11);
o->callback((Fl_Callback*)cb_Headline);
o->when(FL_WHEN_CHANGED);
o->hide();
} // Fl_Light_Button* o
{ Fl_Light_Button* o = new Fl_Light_Button(305, 260, 70, 20, "Hotspot");
o->tooltip("Center the window under this widget.");
o->selection_color((Fl_Color)1);
@@ -2744,7 +2780,6 @@ Fl_Double_Window* make_widget_panel() {
} // Fl_Light_Button* o
{ Fl_Box* o = new Fl_Box(395, 260, 0, 20);
o->labelsize(11);
Fl_Group::current()->resizable(o);
} // Fl_Box* o
wp_gui_attributes->end();
} // Fl_Group* wp_gui_attributes

59
fluid/panels/widget_panel.fl
View File

@@ -2,6 +2,7 @@
version 1.0500
header_name {.h}
code_name {.cxx}
include_guard {}
snap {
ver 1
current_suite FLTK
@@ -25,7 +26,7 @@ comment {//
} {in_source in_header
}
decl {\#include <stdlib.h> // free()} {selected private global
decl {\#include <stdlib.h> // free()} {private global
}
decl {\#include "panels/widget_panel/Grid_Child_Tab.h"} {public global
@@ -630,13 +631,13 @@ Use Ctrl-J for newlines.} xywh {95 40 190 20} labelfont 1 labelsize 11 when 15 t
tooltip {Bottom-align the label.} xywh {353 115 20 20} type Toggle selection_color 8 labelsize 11 labelcolor 8 hide
}
Fl_Choice {} {
callback align_text_image_cb
callback align_text_image_cb open
xywh {172 115 116 20} down_box BORDER_BOX labelsize 11 textsize 11
} {
MenuItem {} {
label { Image Alignment }
user_data {(fl_intptr_t)0xFFFFFFFF}
xywh {145 145 100 20} labelfont 2 labelsize 10 deactivate
user_data {(fl_intptr_t)-1} selected
xywh {145 145 100 20} labelfont 1 labelsize 10 headline
}
MenuItem {} {
label {image over text}
@@ -665,13 +666,13 @@ Use Ctrl-J for newlines.} xywh {95 40 190 20} labelfont 1 labelsize 11 when 15 t
}
}
Fl_Choice {} {
callback align_position_cb
callback align_position_cb open
xywh {293 115 86 20} down_box BORDER_BOX labelsize 11 textsize 11
} {
MenuItem {} {
label { Inside && Outside }
user_data {(fl_intptr_t)0xFFFFFFFF}
xywh {135 135 100 20} labelfont 2 labelsize 10 deactivate
user_data {(fl_intptr_t)-1}
xywh {135 135 100 20} labelfont 1 labelsize 10 headline
}
MenuItem {} {
label {top left}
@@ -720,8 +721,8 @@ Use Ctrl-J for newlines.} xywh {95 40 190 20} labelfont 1 labelsize 11 when 15 t
}
MenuItem {} {
label { Outside Alignment }
user_data {(fl_intptr_t)0xFFFFFFFF}
xywh {125 125 100 20} labelfont 2 labelsize 10 deactivate
user_data {(fl_intptr_t)-1}
xywh {125 125 100 20} labelfont 1 labelsize 10 headline
}
MenuItem {} {
label {left top}
@@ -756,7 +757,7 @@ Use Ctrl-J for newlines.} xywh {95 40 190 20} labelfont 1 labelsize 11 when 15 t
}
Fl_Group {} {
label {Position:}
callback position_group_cb
callback position_group_cb open
xywh {95 150 314 20} labelfont 1 labelsize 11 align 4
} {
Fl_Input widget_x_input {
@@ -1574,7 +1575,7 @@ Use 'Backspace' key to clear.} xywh {95 210 310 20} box DOWN_BOX color 7 selecti
}
Fl_Group wp_gui_attributes {
label {Attributes:}
callback propagate_load
callback propagate_load open
xywh {95 260 305 20} labelfont 1 labelsize 11 align 4
} {
Fl_Light_Button {} {
@@ -1632,9 +1633,12 @@ Use 'Backspace' key to clear.} xywh {95 210 310 20} box DOWN_BOX color 7 selecti
Fl_Light_Button {} {
label Resizable
callback {if (v == LOAD) {
if (current_widget->is_a(Type::Menu_Item)) {o->deactivate(); return;}
if (current_widget->is_a(Type::Menu_Item)) {
o->hide();
return;
}
if (numselected > 1) {o->deactivate(); return;}
o->activate();
o->show();
o->value(current_widget->resizable());
} else {
Fluid.proj.undo.checkpoint();
@@ -1643,6 +1647,33 @@ Use 'Backspace' key to clear.} xywh {95 210 310 20} box DOWN_BOX color 7 selecti
}}
tooltip {Make the widget resizable.} xywh {225 260 75 20} selection_color 1 labelsize 11 when 1
}
Fl_Light_Button {} {
label Headline
callback {if (v == LOAD) {
if (!current_widget->is_a(Type::Menu_Item)) {
o->hide();
return;
}
o->show();
o->value(current_widget->menu_headline());
} else {
int mod = 0;
int n = o->value();
for (Widget_Node *q: Fluid.proj.tree.all_selected_widgets()) {
if (q->is_a(Type::Menu_Item)) {
if (!mod) {
mod = 1;
Fluid.proj.undo.checkpoint();
}
q->menu_headline(n);
q->redraw();
}
}
if (mod) Fluid.proj.set_modflag(1);
}}
tooltip {Make a menu item the headline of a menu
unselectable, but not grayed out} xywh {225 260 75 20} selection_color 1 labelsize 11 when 1 hide
}
Fl_Light_Button {} {
label Hotspot
callback {if (v == LOAD) {
@@ -1672,7 +1703,7 @@ Use 'Backspace' key to clear.} xywh {95 210 310 20} box DOWN_BOX color 7 selecti
tooltip {Center the window under this widget.} xywh {305 260 70 20} selection_color 1 labelsize 11 when 1
}
Fl_Box {} {
xywh {395 260 0 20} labelsize 11 resizable
xywh {395 260 0 20} labelsize 11
}
}
Fl_Input wp_gui_tooltip {

16
src/Fl_MacOS_Sys_Menu_Bar.mm
View File

@@ -229,6 +229,14 @@ const char *Fl_Mac_App_Menu::quit = "Quit %@";
FLMenuItem *item = [[FLMenuItem alloc] initWithTitle:title
action:selector
keyEquivalent:@""];
if (mitem->labelfont() & FL_BOLD) {
NSFont *boldFont = [NSFont boldSystemFontOfSize:[NSFont systemFontSize]];
NSAttributedString *attributed =
[ [ [NSAttributedString alloc] initWithString:title
attributes:@{ NSFontAttributeName: boldFont }]
autorelease];
item.attributedTitle = attributed;
}
// >= 0 if mitem is in the menu items of fl_sys_menu_bar, -1 if not
NSInteger index = (fl_sys_menu_bar ? fl_sys_menu_bar->find_index(mitem) : -1);
[item setTag:index];
@@ -369,6 +377,14 @@ static void createSubMenu( NSMenu *mh, pFl_Menu_Item &mm, const Fl_Menu_Item *m
cnt = (int)[mh numberOfItems];
cnt--;
menuItem = [mh itemAtIndex:cnt];
if (mitem->labelfont() & FL_BOLD) {
NSFont *boldFont = [NSFont boldSystemFontOfSize:[NSFont systemFontSize]];
NSAttributedString *attributed =
[ [ [NSAttributedString alloc] initWithString:title
attributes:@{ NSFontAttributeName: boldFont }]
autorelease];
menuItem.attributedTitle = attributed;
}
[menuItem setSubmenu:submenu];
[submenu release];
} else submenu = mh;

18
src/Fl_Menu.cxx
View File

@@ -727,7 +727,10 @@ static int forward(int menu) { // go to next item in menu menu if possible
do {
while (++item < m.numitems) {
const Fl_Menu_Item* m1 = m.menu->next(item);
if (m1->activevisible()) {setitem(m1, menu, item); return 1;}
if (m1->selectable()) {
setitem(m1, menu, item);
return 1;
}
}
if (wrapped) break;
item = -1;
@@ -748,7 +751,10 @@ static int backward(int menu) { // previous item in menu menu if possible
do {
while (--item >= 0) {
const Fl_Menu_Item* m1 = m.menu->next(item);
if (m1->activevisible()) {setitem(m1, menu, item); return 1;}
if (m1->selectable()) {
setitem(m1, menu, item);
return 1;
}
}
if (wrapped) break;
item = m.numitems;
@@ -868,7 +874,7 @@ int menuwindow::handle_part1(int e) {
goto RIGHT;
}
// Ignore keypresses over inactive items, mark KEYBOARD event as used.
if (pp.current_item && !pp.current_item->activevisible())
if (pp.current_item && !pp.current_item->selectable())
return 1;
// Mark the menu 'done' which will trigger the callback
pp.state = DONE_STATE;
@@ -961,7 +967,7 @@ int menuwindow::handle_part1(int e) {
} else
#endif
// do nothing if they try to pick an inactive item, or a submenu with no callback
if (!pp.current_item || (pp.current_item->activevisible() &&
if (!pp.current_item || (pp.current_item->selectable() &&
(!pp.current_item->submenu() || pp.current_item->callback_ || (pp.menubar && pp.menu_number <= 0))))
pp.state = DONE_STATE;
}
@@ -1038,7 +1044,7 @@ const Fl_Menu_Item* Fl_Menu_Item::pulldown(
}
initial_item = pp.current_item;
if (initial_item) {
if (menubar && !initial_item->activevisible()) { // pointing at inactive item
if (menubar && !initial_item->selectable()) { // pointing at inactive item
Fl::grab(0);
return NULL;
}
@@ -1085,7 +1091,7 @@ const Fl_Menu_Item* Fl_Menu_Item::pulldown(
STARTUP:
menuwindow& cw = *pp.p[pp.menu_number];
const Fl_Menu_Item* m = pp.current_item;
if (!m->activevisible()) { // pointing at inactive item
if (!m->selectable()) { // pointing at inactive item
cw.set_selected(-1);
initial_item = 0; // turn off startup code
continue;

3
test/menubar.cxx
View File

@@ -133,6 +133,7 @@ Fl_Menu_Item menutable[] = {
{"Size", 0, 0},
{0},
{"&Checkbox",FL_F+3,0,0,FL_SUBMENU},
{" Greek: ", 0, 0, nullptr, FL_MENU_HEADLINE, 0, FL_BOLD },
{"&Alpha", FL_F+2, 0, (void *)1, FL_MENU_TOGGLE},
{"&Beta", 0, 0, (void *)2, FL_MENU_TOGGLE},
{"&Gamma", 0, 0, (void *)3, FL_MENU_TOGGLE},
@@ -140,8 +141,10 @@ Fl_Menu_Item menutable[] = {
{"&Epsilon",0, 0, (void *)5, FL_MENU_TOGGLE},
{"&Pi", 0, 0, (void *)6, FL_MENU_TOGGLE},
{"&Mu", 0, 0, (void *)7, FL_MENU_TOGGLE|FL_MENU_DIVIDER},
{" Colors: ", 0, 0, nullptr, FL_MENU_HEADLINE, 0, FL_BOLD },
{"Red", 0, 0, (void *)1, FL_MENU_TOGGLE, 0, 0, 0, 1},
{"Black", 0, 0, (void *)1, FL_MENU_TOGGLE|FL_MENU_DIVIDER},
{" Digits: ", 0, 0, nullptr, FL_MENU_HEADLINE, 0, FL_BOLD },
{"00", 0, 0, (void *)1, FL_MENU_TOGGLE},
{"000", 0, 0, (void *)1, FL_MENU_TOGGLE},
{0},