703 lines
15 KiB
C++
703 lines
15 KiB
C++
// File: fbutton.cpp
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// Provides: class FButton
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#include "fapp.h"
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#include "fbutton.h"
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#include "fstatusbar.h"
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//----------------------------------------------------------------------
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// class FButton
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//----------------------------------------------------------------------
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// constructors and destructor
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//----------------------------------------------------------------------
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FButton::FButton(FWidget* parent)
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: FWidget(parent)
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, text()
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, button_down(false)
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, click_animation(true)
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, click_time(150)
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, button_fg(wc.button_active_fg)
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, button_bg(wc.button_active_bg)
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, button_hotkey_fg(wc.button_hotkey_fg)
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, button_focus_fg(wc.button_active_focus_fg)
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, button_focus_bg(wc.button_active_focus_bg)
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, button_inactive_fg(wc.button_inactive_fg)
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, button_inactive_bg(wc.button_inactive_bg)
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{
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init();
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}
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//----------------------------------------------------------------------
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FButton::FButton (const FString& txt, FWidget* parent)
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: FWidget(parent)
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, text(txt)
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, button_down(false)
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, click_animation(true)
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, click_time(150)
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, button_fg(wc.button_active_fg)
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, button_bg(wc.button_active_bg)
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, button_hotkey_fg(wc.button_hotkey_fg)
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, button_focus_fg(wc.button_active_focus_fg)
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, button_focus_bg(wc.button_active_focus_bg)
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, button_inactive_fg(wc.button_inactive_fg)
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, button_inactive_bg(wc.button_inactive_bg)
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{
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init();
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detectHotkey();
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}
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//----------------------------------------------------------------------
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FButton::~FButton() // destructor
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{
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delAccelerator (this);
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delAllTimer();
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}
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// private methods of FButton
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//----------------------------------------------------------------------
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void FButton::init()
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{
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setForegroundColor (wc.button_active_fg);
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setBackgroundColor (wc.button_active_bg);
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if ( hasFocus() )
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flags = FOCUS;
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if ( isEnabled() )
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flags |= ACTIVE;
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}
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//----------------------------------------------------------------------
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uChar FButton::getHotkey()
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{
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int length;
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if ( text.isEmpty() )
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return 0;
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length = int(text.getLength());
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for (int i=0; i < length; i++)
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{
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try
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{
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if ( (i+1 < length) && (text[uInt(i)] == '&') )
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return uChar(text[uInt(++i)]);
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}
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catch (const std::out_of_range&)
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{
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return 0;;
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}
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}
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return 0;
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}
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//----------------------------------------------------------------------
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void FButton::setHotkeyAccelerator()
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{
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int hotkey = getHotkey();
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if ( hotkey )
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{
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if ( isalpha(hotkey) || isdigit(hotkey) )
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{
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addAccelerator (tolower(hotkey), this);
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addAccelerator (toupper(hotkey), this);
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// Meta + hotkey
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addAccelerator (0x20000e0+tolower(hotkey), this);
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}
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else
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addAccelerator (getHotkey(), this);
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}
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else
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delAccelerator(this);
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}
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//----------------------------------------------------------------------
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void FButton::detectHotkey()
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{
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if ( isEnabled() )
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{
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delAccelerator (this);
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setHotkeyAccelerator();
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}
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}
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//----------------------------------------------------------------------
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void FButton::draw()
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{
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register wchar_t* src;
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register wchar_t* dest;
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wchar_t* ButtonText;
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FString txt;
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int d, i, j, x, mono_offset, margin;
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int length, hotkeypos, hotkey_offset, space;
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bool is_ActiveFocus, is_Active, is_Focus, is_Flat;
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bool is_NonFlatShadow, is_NoUnderline;
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if ( text.isNull() || text.isEmpty() )
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return;
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length = int(text.getLength());
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hotkeypos = -1;
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hotkey_offset = 0;
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space = int(' ');
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if ( isMonochron() )
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ButtonText = new wchar_t[length+3];
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else
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ButtonText = new wchar_t[length+1];
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txt = text;
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src = const_cast<wchar_t*>(txt.wc_str());
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dest = const_cast<wchar_t*>(ButtonText);
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is_ActiveFocus = (flags & (ACTIVE+FOCUS)) == (ACTIVE+FOCUS);
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is_Active = ((flags & ACTIVE) != 0);
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is_Focus = ((flags & FOCUS) != 0);
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is_Flat = isFlat();
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is_NonFlatShadow = ((flags & (SHADOW+FLAT)) == SHADOW);
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is_NoUnderline = ((flags & NO_UNDERLINE) != 0);
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setUpdateVTerm(false);
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if ( button_down && click_animation )
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{
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// noshadow + indent one character to the right
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if ( is_Flat )
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clearFlatBorder();
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clearShadow();
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setColor ( parentWidget()->getForegroundColor(),
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parentWidget()->getBackgroundColor() );
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for (int y=1; y <= height; y++)
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{
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gotoxy (xpos+xmin-1, ypos+ymin-2+y);
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print (' '); // clear one left █
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}
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d = 1;
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}
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else
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d = 0;
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if ( ! is_Active && isMonochron() )
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space = fc::MediumShade; // ▒
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if ( (isMonochron() || getMaxColor() < 16) && is_ActiveFocus )
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{
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txt = "<" + txt + ">";
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length = int(txt.getLength());
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src = const_cast<wchar_t*>(txt.wc_str());
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mono_offset = 2;
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}
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else
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mono_offset = 0;
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// find hotkey position in string
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// + generate a new string without the '&'-sign
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for (i=0; i < length; i++)
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{
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if ( (i < length) && (txt[uInt(i)] == '&') && (hotkeypos == -1) )
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{
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hotkeypos = i;
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i++;
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src++;
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}
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*dest++ = *src++;
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}
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if ( hotkeypos != -1 )
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hotkey_offset = 1;
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if ( (length - hotkey_offset + mono_offset - hotkey_offset) <= width )
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margin = 1;
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else
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margin = 0;
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if ( isMonochron() && (is_Active || is_Focus) )
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setReverse(true);
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if ( is_Flat )
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{
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if ( margin == 1 )
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{
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setColor (foregroundColor, button_bg);
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for (int y=0; y < height; y++)
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{
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gotoxy (xpos+xmin-1+d, ypos+ymin-1+y);
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print (space); // full block █
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}
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}
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if ( ! button_down )
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drawFlatBorder();
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}
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else if ( ! isMonochron() )
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{
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setColor (button_bg, parentWidget()->getBackgroundColor());
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gotoxy (xpos+xmin-1+d, ypos+ymin-1);
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for (int y=1; y <= height; y++)
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{
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// Cygwin terminal use IBM Codepage 850
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if ( isCygwinTerminal() )
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print (fc::FullBlock); // █
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else
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print (fc::RightHalfBlock); // ▐
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gotoxy (xpos+xmin-1+d, ypos+ymin-1+y);
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}
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}
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if ( ! button_down
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&& ! isNewFont()
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&& (is_Flat || ! hasShadow() || isMonochron()) )
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{
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// clear the right █ from button down
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setColor ( parentWidget()->getForegroundColor(),
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parentWidget()->getBackgroundColor() );
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for (int y=1; y <= height; y++)
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{
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if ( isMonochron() )
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setReverse(false);
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gotoxy (xpos+xmin-1+width, ypos+ymin-2+y);
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print (' '); // clear right
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if ( isMonochron() )
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setReverse(true);
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}
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}
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if ( hotkeypos != -1 )
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length--;
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i = width - length - 1;
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i = int(i / 2);
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if ( height > 1 )
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j = int((height-1) / 2);
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else
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j=0;
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gotoxy (xpos+xmin-1+margin+d, ypos+ymin-1+j);
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setColor (button_fg, button_bg);
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for (x=0; x < i; x++)
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print (space); // █
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if ( hotkeypos == -1 )
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setCursorPos ( xpos+xmin-1+margin+i,
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ypos+ymin-1+j ); // first character
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else
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setCursorPos ( xpos+xmin-1+margin+i+hotkeypos,
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ypos+ymin-1+j ); // hotkey
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if ( isMonochron() && is_ActiveFocus )
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setBold();
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for (int z=0; x < i+length && z < width; z++,x++)
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{
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if ( (z == hotkeypos) && is_Active )
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{
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setColor (button_hotkey_fg, button_bg);
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if ( ! is_NoUnderline )
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setUnderline();
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print ( ButtonText[z] );
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if ( ! is_NoUnderline )
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unsetUnderline();
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setColor (button_fg, button_bg);
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}
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else
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{
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print ( ButtonText[z] );
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}
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}
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if ( isMonochron() && is_ActiveFocus )
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unsetBold();
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for (x=i+length; x < width-1; x++)
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print (space); // █
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if ( height > 1 )
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{
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for (i=0; i < j; i++)
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{
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gotoxy (xpos+xmin+d, ypos+ymin-1+i);
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for (int z=1; z < width; z++)
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print (space); // █
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}
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for (i=j+1; i < height; i++)
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{
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gotoxy (xpos+xmin+d, ypos+ymin-1+i);
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for (int z=1; z < width; z++)
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print (space); // █
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}
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}
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if ( isMonochron() )
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setReverse(false);
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if ( is_NonFlatShadow && ! button_down )
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{
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setColor ( parentWidget()->getForegroundColor(),
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parentWidget()->getBackgroundColor() );
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print(' '); // restore background after button down
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drawShadow();
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}
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setUpdateVTerm(true);
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delete[] ButtonText;
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if ( is_Focus && statusBar() )
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{
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FString msg = getStatusbarMessage();
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FString curMsg = statusBar()->getMessage();
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if ( curMsg != msg )
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{
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statusBar()->setMessage(msg);
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statusBar()->drawMessage();
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}
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}
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}
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//----------------------------------------------------------------------
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void FButton::updateButtonColor()
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{
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if ( isEnabled() )
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{
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if ( hasFocus() )
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{
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button_fg = button_focus_fg;
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button_bg = button_focus_bg;
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}
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else
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{
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button_fg = foregroundColor;
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button_bg = backgroundColor;
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}
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}
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else // inactive
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{
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button_fg = button_inactive_fg;
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button_bg = button_inactive_bg;
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}
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}
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//----------------------------------------------------------------------
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void FButton::processClick()
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{
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emitCallback("clicked");
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}
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// public methods of FButton
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//----------------------------------------------------------------------
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void FButton::setForegroundColor (int color)
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{
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FWidget::setForegroundColor(color);
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updateButtonColor();
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}
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//----------------------------------------------------------------------
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void FButton::setBackgroundColor (int color)
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{
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FWidget::setBackgroundColor(color);
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updateButtonColor();
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}
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//----------------------------------------------------------------------
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void FButton::setHotkeyForegroundColor (int color)
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{
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if ( color >> 8 == 0 ) // valid colors 0..254
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button_hotkey_fg = color;
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}
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void FButton::setFocusForegroundColor (int color)
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{
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if ( color >> 8 == 0 ) // valid colors 0..254
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button_focus_fg = color;
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updateButtonColor();
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}
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//----------------------------------------------------------------------
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void FButton::setFocusBackgroundColor (int color)
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{
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if ( color >> 8 == 0 ) // valid colors 0..254
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button_focus_bg = color;
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updateButtonColor();
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}
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//----------------------------------------------------------------------
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void FButton::setInactiveForegroundColor (int color)
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{
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if ( color >> 8 == 0 ) // valid colors 0..254
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button_inactive_fg = color;
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updateButtonColor();
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}
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//----------------------------------------------------------------------
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void FButton::setInactiveBackgroundColor (int color)
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{
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if ( color >> 8 == 0 ) // valid colors 0..254
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button_inactive_bg = color;
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updateButtonColor();
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}
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//----------------------------------------------------------------------
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void FButton::hide()
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{
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int fg, bg, s, f, size;
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char* blank;
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FWidget::hide();
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fg = parentWidget()->getForegroundColor();
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bg = parentWidget()->getBackgroundColor();
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setColor (fg, bg);
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s = hasShadow() ? 1 : 0;
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f = isFlat() ? 1 : 0;
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size = width + s + (f << 1);
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blank = new char[size+1];
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memset(blank, ' ', uLong(size));
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blank[size] = '\0';
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for (int y=0; y < height+s+(f << 1); y++)
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{
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gotoxy (xpos+xmin-1-f, ypos+ymin-1+y-f);
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print (blank);
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}
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delete[] blank;
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}
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//----------------------------------------------------------------------
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bool FButton::setNoUnderline (bool on)
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{
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if ( on )
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flags |= NO_UNDERLINE;
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else
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flags &= ~NO_UNDERLINE;
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return on;
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}
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//----------------------------------------------------------------------
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bool FButton::setEnable (bool on)
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{
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FWidget::setEnable(on);
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if ( on )
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{
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flags |= ACTIVE;
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setHotkeyAccelerator();
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}
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else
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{
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flags &= ~ACTIVE;
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delAccelerator (this);
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}
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updateButtonColor();
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return on;
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}
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//----------------------------------------------------------------------
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bool FButton::setFocus (bool on)
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{
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FWidget::setFocus(on);
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if ( on )
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{
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flags |= FOCUS;
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if ( isEnabled() )
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{
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if ( statusBar() )
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{
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FString msg = getStatusbarMessage();
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FString curMsg = statusBar()->getMessage();
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if ( curMsg != msg )
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statusBar()->setMessage(msg);
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}
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}
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}
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else
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{
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flags &= ~FOCUS;
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if ( isEnabled() && statusBar() )
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statusBar()->clearMessage();
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}
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updateButtonColor();
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return on;
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}
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//----------------------------------------------------------------------
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bool FButton::setFlat (bool on)
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{
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if ( on )
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flags |= FLAT;
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else
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flags &= ~FLAT;
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return on;
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}
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//----------------------------------------------------------------------
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bool FButton::setShadow (bool on)
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{
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if ( on && Encoding != fc::VT100 && Encoding != fc::ASCII )
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flags |= SHADOW;
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else
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flags &= ~SHADOW;
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return on;
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}
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//----------------------------------------------------------------------
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bool FButton::setDown (bool on)
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{
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if ( button_down != on )
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{
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button_down = on;
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redraw();
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}
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return on;
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}
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//----------------------------------------------------------------------
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void FButton::onKeyPress (FKeyEvent* ev)
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{
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int key;
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if ( ! isEnabled() )
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return;
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key = ev->key();
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switch ( key )
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{
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case fc::Fkey_return:
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case fc::Fkey_enter:
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case fc::Fkey_space:
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if ( click_animation )
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{
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setDown();
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addTimer(click_time);
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}
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processClick();
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ev->accept();
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break;
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default:
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break;
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}
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}
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//----------------------------------------------------------------------
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void FButton::onMouseDown (FMouseEvent* ev)
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{
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if ( ev->getButton() != LeftButton )
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{
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setUp();
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return;
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}
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if ( ! hasFocus() )
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{
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FWidget* focused_widget = getFocusWidget();
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FFocusEvent out (FocusOut_Event);
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FApplication::queueEvent(focused_widget, &out);
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setFocus();
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if ( focused_widget )
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focused_widget->redraw();
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if ( statusBar() )
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statusBar()->drawMessage();
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|
}
|
|
FPoint gPos = ev->getGlobalPos();
|
|
if ( getGeometryGlobal().contains(gPos) )
|
|
setDown();
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::onMouseUp (FMouseEvent* ev)
|
|
{
|
|
if ( ev->getButton() != LeftButton )
|
|
return;
|
|
|
|
if ( button_down )
|
|
{
|
|
setUp();
|
|
if ( getGeometryGlobal().contains(ev->getGlobalPos()) )
|
|
processClick();
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::onMouseMove (FMouseEvent* ev)
|
|
{
|
|
if ( ev->getButton() != LeftButton )
|
|
return;
|
|
|
|
FPoint gPos = ev->getGlobalPos();
|
|
if ( click_animation )
|
|
{
|
|
if ( getGeometryGlobal().contains(gPos) )
|
|
setDown();
|
|
else
|
|
setUp();
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::onTimer (FTimerEvent* ev)
|
|
{
|
|
delTimer(ev->timerId());
|
|
setUp();
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::onAccel (FAccelEvent* ev)
|
|
{
|
|
if ( isEnabled() )
|
|
{
|
|
if ( ! hasFocus() )
|
|
{
|
|
FWidget* focused_widget = static_cast<FWidget*>(ev->focusedWidget());
|
|
FFocusEvent out (FocusOut_Event);
|
|
FApplication::queueEvent(focused_widget, &out);
|
|
setFocus();
|
|
if ( focused_widget )
|
|
focused_widget->redraw();
|
|
if ( click_animation )
|
|
setDown();
|
|
else
|
|
redraw();
|
|
if ( statusBar() )
|
|
statusBar()->drawMessage();
|
|
}
|
|
else if ( click_animation )
|
|
setDown();
|
|
if ( click_animation )
|
|
addTimer(click_time);
|
|
|
|
processClick();
|
|
ev->accept();
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::onFocusIn (FFocusEvent*)
|
|
{
|
|
if ( statusBar() )
|
|
statusBar()->drawMessage();
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::onFocusOut (FFocusEvent*)
|
|
{
|
|
if ( statusBar() )
|
|
{
|
|
statusBar()->clearMessage();
|
|
statusBar()->drawMessage();
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
void FButton::setText (const FString& txt)
|
|
{
|
|
text = txt;
|
|
detectHotkey();
|
|
}
|