mirror of
https://github.com/VDR4Arch/vdr.git
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491 lines
12 KiB
C
491 lines
12 KiB
C
/*
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* osdbase.c: Basic interface to the On Screen Display
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: osdbase.c 1.27 2006/01/05 15:35:06 kls Exp $
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*/
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#include "osdbase.h"
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#include <string.h>
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#include "device.h"
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#include "i18n.h"
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#include "remote.h"
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#include "status.h"
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// --- cOsdItem --------------------------------------------------------------
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cOsdItem::cOsdItem(eOSState State)
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{
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text = NULL;
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state = State;
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selectable = true;
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fresh = true;
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}
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cOsdItem::cOsdItem(const char *Text, eOSState State, bool Selectable)
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{
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text = NULL;
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state = State;
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selectable = Selectable;
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fresh = true;
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SetText(Text);
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}
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cOsdItem::~cOsdItem()
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{
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free(text);
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}
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void cOsdItem::SetText(const char *Text, bool Copy)
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{
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free(text);
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text = Copy ? strdup(Text) : (char *)Text; // text assumes ownership!
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}
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void cOsdItem::SetSelectable(bool Selectable)
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{
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selectable = Selectable;
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}
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void cOsdItem::SetFresh(bool Fresh)
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{
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fresh = Fresh;
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}
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eOSState cOsdItem::ProcessKey(eKeys Key)
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{
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return Key == kOk ? state : osUnknown;
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}
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// --- cOsdObject ------------------------------------------------------------
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void cOsdObject::Show(void)
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{
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if (isMenu)
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((cOsdMenu *)this)->Display();
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}
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// --- cOsdMenu --------------------------------------------------------------
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cSkinDisplayMenu *cOsdMenu::displayMenu = NULL;
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int cOsdMenu::displayMenuCount = 0;
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int cOsdMenu::displayMenuItems = 0;//XXX dynamic???
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cOsdMenu::cOsdMenu(const char *Title, int c0, int c1, int c2, int c3, int c4)
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{
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isMenu = true;
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digit = 0;
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hasHotkeys = false;
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title = NULL;
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SetTitle(Title);
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SetCols(c0, c1, c2, c3, c4);
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first = 0;
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current = marked = -1;
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subMenu = NULL;
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helpRed = helpGreen = helpYellow = helpBlue = NULL;
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status = NULL;
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if (!displayMenuCount++) {
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displayMenu = Skins.Current()->DisplayMenu();
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displayMenuItems = displayMenu->MaxItems();
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}
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}
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cOsdMenu::~cOsdMenu()
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{
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free(title);
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delete subMenu;
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free(status);
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displayMenu->Clear();
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cStatus::MsgOsdClear();
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if (!--displayMenuCount)
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DELETENULL(displayMenu);
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}
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const char *cOsdMenu::hk(const char *s)
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{
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static char buffer[64];
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if (s && hasHotkeys) {
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if (digit == 0 && '1' <= *s && *s <= '9' && *(s + 1) == ' ')
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digit = -1; // prevents automatic hotkeys - input already has them
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if (digit >= 0) {
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digit++;
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snprintf(buffer, sizeof(buffer), " %c %s", (digit < 10) ? '0' + digit : ' ' , s);
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s = buffer;
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}
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}
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return s;
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}
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void cOsdMenu::SetCols(int c0, int c1, int c2, int c3, int c4)
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{
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cols[0] = c0;
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cols[1] = c1;
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cols[2] = c2;
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cols[3] = c3;
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cols[4] = c4;
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}
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void cOsdMenu::SetHasHotkeys(void)
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{
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hasHotkeys = true;
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digit = 0;
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}
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void cOsdMenu::SetStatus(const char *s)
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{
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free(status);
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status = s ? strdup(s) : NULL;
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displayMenu->SetMessage(mtStatus, s);
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}
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void cOsdMenu::SetTitle(const char *Title)
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{
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free(title);
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title = strdup(Title);
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}
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void cOsdMenu::SetHelp(const char *Red, const char *Green, const char *Yellow, const char *Blue)
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{
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// strings are NOT copied - must be constants!!!
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helpRed = Red;
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helpGreen = Green;
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helpYellow = Yellow;
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helpBlue = Blue;
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displayMenu->SetButtons(helpRed, helpGreen, helpYellow, helpBlue);
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cStatus::MsgOsdHelpKeys(helpRed, helpGreen, helpYellow, helpBlue);
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}
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void cOsdMenu::Del(int Index)
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{
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cList<cOsdItem>::Del(Get(Index));
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int count = Count();
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while (current < count && !SelectableItem(current))
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current++;
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if (current == count) {
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while (current > 0 && !SelectableItem(current))
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current--;
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}
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if (Index == first && first > 0)
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first--;
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}
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void cOsdMenu::Add(cOsdItem *Item, bool Current, cOsdItem *After)
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{
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cList<cOsdItem>::Add(Item, After);
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if (Current)
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current = Item->Index();
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}
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void cOsdMenu::Ins(cOsdItem *Item, bool Current, cOsdItem *Before)
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{
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cList<cOsdItem>::Ins(Item, Before);
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if (Current)
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current = Item->Index();
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}
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void cOsdMenu::Display(void)
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{
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if (subMenu) {
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subMenu->Display();
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return;
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}
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displayMenu->SetMessage(mtStatus, NULL);
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displayMenu->Clear();
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cStatus::MsgOsdClear();
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displayMenu->SetTabs(cols[0], cols[1], cols[2], cols[3], cols[4]);//XXX
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displayMenu->SetTitle(title);
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cStatus::MsgOsdTitle(title);
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displayMenu->SetButtons(helpRed, helpGreen, helpYellow, helpBlue);
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cStatus::MsgOsdHelpKeys(helpRed, helpGreen, helpYellow, helpBlue);
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int count = Count();
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if (count > 0) {
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int ni = 0;
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for (cOsdItem *item = First(); item; item = Next(item)) {
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cStatus::MsgOsdItem(item->Text(), ni++);
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if (current < 0 && item->Selectable())
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current = item->Index();
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}
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if (current < 0)
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current = 0; // just for safety - there HAS to be a current item!
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if (current - first >= displayMenuItems || current < first) {
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first = current - displayMenuItems / 2;
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if (first + displayMenuItems > count)
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first = count - displayMenuItems;
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if (first < 0)
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first = 0;
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}
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int i = first;
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int n = 0;
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for (cOsdItem *item = Get(first); item; item = Next(item)) {
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bool CurrentSelectable = (i == current) && item->Selectable();
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displayMenu->SetItem(item->Text(), i - first, CurrentSelectable, item->Selectable());
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if (CurrentSelectable)
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cStatus::MsgOsdCurrentItem(item->Text());
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if (++n == displayMenuItems)
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break;
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i++;
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}
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}
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if (!isempty(status))
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displayMenu->SetMessage(mtStatus, status);
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}
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void cOsdMenu::SetCurrent(cOsdItem *Item)
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{
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current = Item ? Item->Index() : -1;
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}
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void cOsdMenu::RefreshCurrent(void)
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{
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cOsdItem *item = Get(current);
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if (item)
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item->Set();
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}
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void cOsdMenu::DisplayCurrent(bool Current)
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{
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cOsdItem *item = Get(current);
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if (item) {
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displayMenu->SetItem(item->Text(), current - first, Current && item->Selectable(), item->Selectable());
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if (Current && item->Selectable())
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cStatus::MsgOsdCurrentItem(item->Text());
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if (!Current)
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item->SetFresh(true); // leaving the current item resets 'fresh'
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}
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}
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void cOsdMenu::Clear(void)
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{
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if (marked >= 0)
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SetStatus(NULL);
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first = 0;
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current = marked = -1;
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cList<cOsdItem>::Clear();
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}
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bool cOsdMenu::SelectableItem(int idx)
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{
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cOsdItem *item = Get(idx);
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return item && item->Selectable();
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}
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void cOsdMenu::CursorUp(void)
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{
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int tmpCurrent = current;
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int lastOnScreen = first + displayMenuItems - 1;
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int last = Count() - 1;
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if (last < 0)
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return;
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while (--tmpCurrent != current) {
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if (tmpCurrent < 0) {
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if (Setup.MenuScrollWrap)
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tmpCurrent = last + 1;
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else
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return;
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}
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else if (SelectableItem(tmpCurrent))
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break;
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}
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if (first <= tmpCurrent && tmpCurrent <= lastOnScreen)
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DisplayCurrent(false);
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current = tmpCurrent;
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if (current < first) {
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first = Setup.MenuScrollPage ? max(0, current - displayMenuItems + 1) : current;
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Display();
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}
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else if (current > lastOnScreen) {
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first = max(0, current - displayMenuItems + 1);
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Display();
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}
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else
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DisplayCurrent(true);
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}
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void cOsdMenu::CursorDown(void)
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{
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int tmpCurrent = current;
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int lastOnScreen = first + displayMenuItems - 1;
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int last = Count() - 1;
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if (last < 0)
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return;
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while (++tmpCurrent != current) {
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if (tmpCurrent > last) {
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if (Setup.MenuScrollWrap)
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tmpCurrent = -1;
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else
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return;
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}
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else if (SelectableItem(tmpCurrent))
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break;
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}
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if (first <= tmpCurrent && tmpCurrent <= lastOnScreen)
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DisplayCurrent(false);
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current = tmpCurrent;
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if (current > lastOnScreen) {
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first = Setup.MenuScrollPage ? current : max(0, current - displayMenuItems + 1);
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if (first + displayMenuItems > last)
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first = max(0, last - displayMenuItems + 1);
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Display();
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}
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else if (current < first) {
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first = current;
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Display();
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}
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else
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DisplayCurrent(true);
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}
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void cOsdMenu::PageUp(void)
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{
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int oldCurrent = current;
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int oldFirst = first;
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current -= displayMenuItems;
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first -= displayMenuItems;
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int last = Count() - 1;
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if (current < 0)
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current = 0;
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if (first < 0)
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first = 0;
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int tmpCurrent = current;
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while (!SelectableItem(tmpCurrent) && --tmpCurrent >= 0)
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;
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if (tmpCurrent < 0) {
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tmpCurrent = current;
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while (++tmpCurrent <= last && !SelectableItem(tmpCurrent))
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;
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}
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current = tmpCurrent <= last ? tmpCurrent : -1;
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if (current >= 0) {
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if (current < first)
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first = current;
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else if (current - first >= displayMenuItems)
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first = current - displayMenuItems + 1;
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}
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if (current != oldCurrent || first != oldFirst) {
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Display();
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DisplayCurrent(true);
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}
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else if (Setup.MenuScrollWrap)
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CursorUp();
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}
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void cOsdMenu::PageDown(void)
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{
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int oldCurrent = current;
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int oldFirst = first;
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current += displayMenuItems;
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first += displayMenuItems;
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int last = Count() - 1;
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if (current > last)
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current = last;
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if (first + displayMenuItems > last)
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first = max(0, last - displayMenuItems + 1);
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int tmpCurrent = current;
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while (!SelectableItem(tmpCurrent) && ++tmpCurrent <= last)
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;
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if (tmpCurrent > last) {
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tmpCurrent = current;
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while (--tmpCurrent >= 0 && !SelectableItem(tmpCurrent))
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;
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}
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current = tmpCurrent > 0 ? tmpCurrent : -1;
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if (current >= 0) {
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if (current < first)
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first = current;
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else if (current - first >= displayMenuItems)
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first = current - displayMenuItems + 1;
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}
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if (current != oldCurrent || first != oldFirst) {
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Display();
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DisplayCurrent(true);
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}
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else if (Setup.MenuScrollWrap)
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CursorDown();
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}
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void cOsdMenu::Mark(void)
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{
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if (Count() && marked < 0) {
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marked = current;
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SetStatus(tr("Up/Dn for new location - OK to move"));
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}
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}
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eOSState cOsdMenu::HotKey(eKeys Key)
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{
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for (cOsdItem *item = First(); item; item = Next(item)) {
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const char *s = item->Text();
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if (s && (s = skipspace(s)) != NULL) {
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if (*s == Key - k1 + '1') {
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current = item->Index();
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cRemote::Put(kOk, true);
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break;
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}
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}
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}
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return osContinue;
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}
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eOSState cOsdMenu::AddSubMenu(cOsdMenu *SubMenu)
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{
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delete subMenu;
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subMenu = SubMenu;
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subMenu->Display();
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return osContinue; // convenience return value
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}
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eOSState cOsdMenu::CloseSubMenu()
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{
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delete subMenu;
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subMenu = NULL;
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RefreshCurrent();
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Display();
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return osContinue; // convenience return value
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}
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eOSState cOsdMenu::ProcessKey(eKeys Key)
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{
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if (subMenu) {
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eOSState state = subMenu->ProcessKey(Key);
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if (state == osBack)
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return CloseSubMenu();
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return state;
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}
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cOsdItem *item = Get(current);
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if (marked < 0 && item) {
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eOSState state = item->ProcessKey(Key);
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if (state != osUnknown) {
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DisplayCurrent(true);
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return state;
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}
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}
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switch (Key) {
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case k0: return osUnknown;
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case k1...k9: return hasHotkeys ? HotKey(Key) : osUnknown;
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case kUp|k_Repeat:
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case kUp: CursorUp(); break;
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case kDown|k_Repeat:
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case kDown: CursorDown(); break;
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case kLeft|k_Repeat:
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case kLeft: PageUp(); break;
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case kRight|k_Repeat:
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case kRight: PageDown(); break;
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case kBack: return osBack;
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case kOk: if (marked >= 0) {
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SetStatus(NULL);
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if (marked != current)
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Move(marked, current);
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marked = -1;
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break;
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}
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// else run into default
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default: if (marked < 0)
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return osUnknown;
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}
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return osContinue;
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}
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