Files
foobar2000-sdk/foobar2000/helpers/dropdown_helper.h
2021-12-14 00:28:25 -07:00

56 lines
2.1 KiB
C++

#pragma once
#ifdef FOOBAR2000_DESKTOP_WINDOWS
class _cfg_dropdown_history_base
{
const unsigned m_max;
void build_list(pfc::ptr_list_t<char> & out);
void parse_list(const pfc::ptr_list_t<char> & src);
public:
enum {separator = '\n'};
virtual void set_state(const char * val) = 0;
virtual void get_state(pfc::string_base & out) const = 0;
_cfg_dropdown_history_base(unsigned p_max) : m_max(p_max) {}
void on_init(HWND ctrl, const char * initVal) {
add_item(initVal); setup_dropdown(ctrl); uSetWindowText(ctrl, initVal);
}
void setup_dropdown(HWND wnd);
void setup_dropdown_set_value(HWND wnd);
void setup_dropdown(HWND wnd,UINT id) {setup_dropdown(GetDlgItem(wnd,id));}
bool add_item(const char * item); //returns true when the content has changed, false when not (the item was already on the list)
bool add_item(const char * item, HWND combobox); //immediately adds the item to the combobox
bool is_empty();
bool on_context(HWND wnd,LPARAM coords); //returns true when the content has changed
};
class cfg_dropdown_history : public _cfg_dropdown_history_base {
public:
cfg_dropdown_history(const GUID & p_guid,unsigned p_max = 10,const char * init_vals = "") : _cfg_dropdown_history_base(p_max), m_state(p_guid, init_vals) {}
void set_state(const char * val) {m_state = val;}
void get_state(pfc::string_base & out) const {out = m_state;}
private:
cfg_string m_state;
};
class cfg_dropdown_history_mt : public _cfg_dropdown_history_base {
public:
cfg_dropdown_history_mt(const GUID & p_guid,unsigned p_max = 10,const char * init_vals = "") : _cfg_dropdown_history_base(p_max), m_state(p_guid, init_vals) {}
void set_state(const char * val) {m_state.set(val);}
void get_state(pfc::string_base & out) const {m_state.get(out);}
private:
cfg_string_mt m_state;
};
// ATL-compatible message map entry macro for installing dropdown list context menus.
#define DROPDOWN_HISTORY_HANDLER(ctrlID,var) \
if(uMsg == WM_CONTEXTMENU) { \
const HWND source = (HWND) wParam; \
if (source != NULL && source == CWindow(hWnd).GetDlgItem(ctrlID)) { \
var.on_context(source,lParam); \
lResult = 0; \
return TRUE; \
} \
}
#endif // FOOBAR2000_DESKTOP_WINDOWS