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Update scroll-window policy of Lua dialog windows

Better version of 817fccb3e5, the visibility should not depend
on the number of items in the dialog, but its requested height
vs screen height.

The main use-case is to not show the scroll-bar if the dialog has only
a few rows. Then again if the scrollbar is visible, the dialog
should not shrink below a reasonable min. height.
This commit is contained in:
Robin Gareus 2022-06-02 22:01:56 +02:00
parent 2cef35247c
commit 5db59b9fd6
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 13 additions and 7 deletions

View File

@ -30,9 +30,10 @@
#include "widgets/slider_controller.h"
#include "stripable_colorpicker.h"
#include "ardour_dialog.h"
#include "luadialog.h"
#include "public_editor.h"
#include "splash.h"
#include "ui_config.h"
#include "utils.h"
using namespace LuaDialog;
@ -763,7 +764,7 @@ Dialog::Dialog (std::string const& title, luabridge::LuaRef lr)
Gtk::Table* table = Gtk::manage (new Gtk::Table ());
table->set_col_spacings (20);
table->set_row_spacings (8);
table->signal_size_allocate ().connect (sigc::mem_fun (this, &Dialog::table_size_alloc));
table->signal_size_request ().connect (sigc::mem_fun (this, &Dialog::table_size_request));
_scroller.set_shadow_type(Gtk::SHADOW_NONE);
_scroller.set_border_width(0);
@ -833,12 +834,15 @@ Dialog::run (lua_State *L)
}
void
Dialog::table_size_alloc (Gtk::Allocation& allocation)
Dialog::table_size_request (Gtk::Requisition* req)
{
/* XXX: consider using 0.75 * screen-height instead of 512 */
if (allocation.get_height () > 512) {
int h = Gtkmm2ext::physical_screen_height (PublicEditor::instance ().current_toplevel()->get_window());
int max_height = std::max (400., std::min (768.0 * UIConfiguration::instance().get_ui_scale(), h * .7));
if (req->height > max_height) {
_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
_ad.set_size_request (-1, 512);
_ad.set_size_request (-1, max_height);
}
}

View File

@ -20,11 +20,13 @@
#define _gtk2ardour_luadialog_h_
#include <cassert>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/table.h>
#include <gtkmm/progressbar.h>
#include "LuaBridge/LuaBridge.h"
#include "ardour_dialog.h"
#include "ardour_message.h"
namespace LuaDialog {
@ -91,7 +93,7 @@ public:
private:
Dialog (Dialog const&); // prevent copy construction
void table_size_alloc (Gtk::Allocation&);
void table_size_request (Gtk::Requisition*);
ArdourDialog _ad;
Gtk::ScrolledWindow _scroller;