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/*
* Copyright (C) 2023 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2023 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-tk-lib
* Created on: 18 сент. 2017 г.
*
* lsp-tk-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-tk-lib 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-tk-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_TK_WIDGETS_COMPOUND_MENU_H_
#define LSP_PLUG_IN_TK_WIDGETS_COMPOUND_MENU_H_
#ifndef LSP_PLUG_IN_TK_IMPL
#error "use <lsp-plug.in/tk/tk.h>"
#endif
namespace lsp
{
namespace tk
{
class MenuItem;
// Style definition
namespace style
{
LSP_TK_STYLE_DEF_BEGIN(Menu, WidgetContainer)
prop::Font sFont;
prop::Float sScrolling;
prop::Integer sBorderSize;
prop::Integer sBorderRadius;
prop::Color sBorderColor;
prop::Color sScrollColor;
prop::Color sScrollSelectedColor;
prop::Color sScrollTextColor;
prop::Color sScrollTextSelectedColor;
prop::Boolean sCheckDrawUnchecked;
prop::Boolean sRadioDrawUnchecked;
prop::Integer sCheckSize;
prop::Integer sCheckBorder;
prop::Integer sCheckBorderGap;
prop::Integer sCheckBorderRadius;
prop::Integer sSeparatorWidth;
prop::Integer sSpacing;
prop::Padding sIPadding;
LSP_TK_STYLE_DEF_END
}
class Menu: public WidgetContainer
{
public:
static const w_class_t metadata;
private:
static const tether_t tether_list_ltr[];
static const tether_t tether_list_rtl[];
protected:
friend class MenuItem;
protected:
typedef struct item_t
{
MenuItem *item; // Menu item
padding_t pad; // Padding
ws::rectangle_t area; // Overall area allocated to menu item
ws::rectangle_t check; // Check box/radio area
ws::rectangle_t text; // Menu text area
ws::rectangle_t scut; // Shortcut text area
ws::rectangle_t ref; // Reference to submenu area
} item_t;
typedef struct istats_t
{
ssize_t full_w; // Full width
ssize_t full_h; // Full height
ssize_t item_w; // Maximum item width
ssize_t item_h; // Maximum item height
ssize_t check_w; // Check box width
ssize_t check_h; // Check box height
ssize_t scut_w; // Shortcut width
ssize_t scut_h; // Shortcut height
ssize_t link_w; // Link width
ssize_t link_h; // Link height
size_t items; // Number of items
size_t separators; // Number of separators
ssize_t max_scroll; // Maximum scroll
bool ckbox; // at least one check box is present
bool shortcut; // at least one shortcut is present
bool submenu; // at least one submenu is present
} istats_t;
enum selection_t
{
SEL_NONE = -3,
SEL_TOP_SCROLL = -2,
SEL_BOTTOM_SCROLL = -1
};
class Window: public PopupWindow
{
public:
static const w_class_t metadata;
private:
Menu *pMenu;
public:
explicit Window(Display *dpy, Menu *menu);
protected:
virtual Widget *sync_mouse_handler(const ws::event_t *e, bool lookup) override;
virtual Widget *acquire_mouse_handler(const ws::event_t *e) override;
virtual Widget *release_mouse_handler(const ws::event_t *e, bool lookup) override;
public:
virtual status_t handle_event(const ws::event_t *e) override;
virtual bool take_focus() override;
};
class MenuScroll: public Widget
{
public:
static const w_class_t metadata;
private:
Menu *pMenu;
ssize_t nDirection;
bool bActive;
public:
explicit MenuScroll(Display *dpy, Menu *menu, ssize_t dir);
public:
virtual status_t on_mouse_in(const ws::event_t *e) override;
virtual status_t on_mouse_out(const ws::event_t *e) override;
virtual status_t on_focus_out(const ws::event_t *e) override;
bool active() const;
};
protected:
lltl::parray<MenuItem> vItems;
lltl::darray<item_t> vVisible; // List of visible items
ssize_t nSelected; // Selected menu item
ssize_t nKeyScroll; // Key scroll direction
ssize_t nMouseScroll; // Mouse scroll direction
Menu *pParentMenu; // Parent menu
Menu *pChildMenu; // Child menu
Menu *pKeyboardMenu; // Keyboard menu handler
istats_t sIStats; // Realized statistics
Window sWindow; // Associated popup window
MenuScroll sUp; // Up-scroll button
MenuScroll sDown; // Down-scroll button
Timer sKeyTimer; // Key scroll timer
Timer sMouseTimer; // Mouse scroll timer
prop::Font sFont;
prop::Float sScrolling;
prop::Integer sBorderSize;
prop::Integer sBorderRadius;
prop::Color sBorderColor;
prop::Color sScrollColor;
prop::Color sScrollSelectedColor;
prop::Color sScrollTextColor;
prop::Color sScrollTextSelectedColor;
prop::Boolean sCheckDrawUnchecked;
prop::Boolean sRadioDrawUnchecked;
prop::Integer sCheckSize;
prop::Integer sCheckBorder;
prop::Integer sCheckBorderGap;
prop::Integer sCheckBorderRadius;
prop::Integer sSeparatorWidth;
prop::Integer sSpacing;
prop::Padding sIPadding;
prop::WidgetPtr<Menu> sSubmenu; // Sub-menu
protected:
static status_t key_scroll_handler(ws::timestamp_t sched, ws::timestamp_t time, void *arg);
static status_t mouse_scroll_handler(ws::timestamp_t sched, ws::timestamp_t time, void *arg);
protected:
void allocate_items(lltl::darray<item_t> *out, istats_t *stats);
status_t start_mouse_scroll(ssize_t dir);
status_t end_mouse_scroll();
void do_destroy();
void hide_nested_menus(Menu *parent);
void show_submenu(Menu *parent, Widget *w);
Menu *root_menu();
Menu *find_menu(const ws::event_t *ev, ws::rectangle_t *xr);
bool check_rtl_direction();
protected:
virtual void property_changed(Property *prop) override;
virtual void size_request(ws::size_limit_t *r) override;
virtual void realize(const ws::rectangle_t *r) override;
virtual void show_widget() override;
virtual void hide_widget() override;
virtual void select_menu_item(MenuItem *item, bool popup);
virtual void select_menu_item(ssize_t index, bool popup);
virtual void select_first_item(bool popup);
virtual void submit_menu_item(MenuItem *item, bool focus);
virtual void sync_scroll(MenuItem *item);
virtual status_t handle_key_scroll(ssize_t dir);
virtual status_t handle_mouse_scroll(ssize_t dir);
public:
explicit Menu(Display *dpy);
Menu(const Menu &) = delete;
Menu(Menu &&) = delete;
virtual ~Menu() override;
Menu & operator = (const Menu &) = delete;
Menu & operator = (Menu &&) = delete;
virtual status_t init() override;
virtual void destroy() override;
public:
LSP_TK_PROPERTY(Font, font, &sFont)
LSP_TK_PROPERTY(Integer, spacing, &sSpacing)
LSP_TK_PROPERTY(Float, scrolling, &sScrolling)
LSP_TK_PROPERTY(Integer, border_size, &sBorderSize)
LSP_TK_PROPERTY(Integer, border_radius, &sBorderRadius)
LSP_TK_PROPERTY(Color, border_color, &sBorderColor)
LSP_TK_PROPERTY(Color, scroll_selected_color, &sScrollSelectedColor)
LSP_TK_PROPERTY(Color, scroll_text_color, &sScrollTextColor)
LSP_TK_PROPERTY(Color, scroll_text_selected_color, &sScrollTextSelectedColor)
LSP_TK_PROPERTY(Boolean, check_draw_unchecked, &sCheckDrawUnchecked)
LSP_TK_PROPERTY(Boolean, radio_draw_unchecked, &sRadioDrawUnchecked)
LSP_TK_PROPERTY(Integer, check_size, &sCheckSize)
LSP_TK_PROPERTY(Integer, check_border, &sCheckBorder)
LSP_TK_PROPERTY(Integer, check_border_gap, &sCheckBorderGap)
LSP_TK_PROPERTY(Integer, check_border_radius, &sCheckBorderRadius)
LSP_TK_PROPERTY(Integer, separator_width, &sSeparatorWidth)
LSP_TK_PROPERTY(Padding, padding_internal, &sIPadding)
LSP_TK_PROPERTY(Rectangle, trigger_area, sWindow.trigger_area())
LSP_TK_PROPERTY(Integer, trigger_screen, sWindow.trigger_screen())
LSP_TK_PROPERTY(WidgetPtr<Widget>, trigger_widget, sWindow.trigger_widget())
public:
bool set_tether(const lltl::darray<tether_t> *list);
bool set_tether(const tether_t *list, size_t count);
bool add_tether(const tether_t *item);
bool add_tether(size_t pos, float halign=1.0f, float valign=1.0f);
public:
virtual Widget *find_widget(ssize_t x, ssize_t y) override;
virtual status_t add(Widget *child) override;
virtual status_t remove(Widget *child) override;
virtual void show() override;
virtual void draw(ws::ISurface *s) override;
virtual status_t on_key_down(const ws::event_t *e) override;
virtual status_t on_key_up(const ws::event_t *e) override;
public:
virtual status_t insert(Widget *child, size_t index);
virtual Widget *get(size_t index);
virtual void show(Widget *w);
virtual void showxy(Widget *w);
virtual void showmp(Widget *w);
virtual void show(Widget *w, ssize_t x, ssize_t y);
virtual void show(Widget *w, ssize_t x, ssize_t y, ssize_t xw, ssize_t xh);
virtual void show(Widget *w, const ws::rectangle_t *r);
};
} /* namespace tk */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_TK_WIDGETS_COMPOUND_MENU_H_ */
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