mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-23 02:11:38 +00:00
47280d9433
svn-id: r16398
216 lines
6.4 KiB
C++
216 lines
6.4 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2002-2005 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*/
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#ifndef GUI_WIDGET_H
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#define GUI_WIDGET_H
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#include "common/scummsys.h"
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#include "common/str.h"
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#include "graphics/font.h"
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#include "gui/object.h"
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namespace GUI {
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class Dialog;
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enum {
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WIDGET_ENABLED = 1 << 0,
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WIDGET_INVISIBLE = 1 << 1,
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WIDGET_HILITED = 1 << 2,
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WIDGET_BORDER = 1 << 3,
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WIDGET_INV_BORDER = 1 << 4,
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WIDGET_CLEARBG = 1 << 5,
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WIDGET_WANT_TICKLE = 1 << 7,
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WIDGET_TRACK_MOUSE = 1 << 8,
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WIDGET_RETAIN_FOCUS = 1 << 9 // Retain focus on mouse up. By default widgets lose focus on mouseup, but some widgets might want to retain it - widgets where you enter text, for instance
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};
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enum {
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kStaticTextWidget = 'TEXT',
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kEditTextWidget = 'EDIT',
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kButtonWidget = 'BTTN',
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kCheckboxWidget = 'CHKB',
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kSliderWidget = 'SLDE',
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kListWidget = 'LIST',
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kScrollBarWidget = 'SCRB',
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kPopUpWidget = 'POPU',
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kTabWidget = 'TABW'
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};
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enum {
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kCaretBlinkTime = 300
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};
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enum {
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kButtonWidth = 72,
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kButtonHeight = 16
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};
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/* Widget */
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class Widget : public GuiObject {
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friend class Dialog;
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protected:
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uint32 _type;
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GuiObject *_boss;
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Widget *_next;
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uint16 _id;
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uint16 _flags;
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bool _hasFocus;
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public:
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static Widget *findWidgetInChain(Widget *start, int x, int y);
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public:
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Widget(GuiObject *boss, int x, int y, int w, int h);
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virtual ~Widget();
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virtual int16 getAbsX() const { return _x + _boss->getChildX(); }
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virtual int16 getAbsY() const { return _y + _boss->getChildY(); }
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virtual void handleMouseDown(int x, int y, int button, int clickCount) {}
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virtual void handleMouseUp(int x, int y, int button, int clickCount) {}
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virtual void handleMouseEntered(int button) {}
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virtual void handleMouseLeft(int button) {}
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virtual void handleMouseMoved(int x, int y, int button) {}
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virtual void handleMouseWheel(int x, int y, int direction) {}
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virtual bool handleKeyDown(uint16 ascii, int keycode, int modifiers) { return false; } // Return true if the event was handled
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virtual bool handleKeyUp(uint16 ascii, int keycode, int modifiers) { return false; } // Return true if the event was handled
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virtual void handleTickle() {}
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void draw();
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void receivedFocus() { _hasFocus = true; receivedFocusWidget(); }
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void lostFocus() { _hasFocus = false; lostFocusWidget(); }
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virtual bool wantsFocus() { return false; };
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void setFlags(int flags) { _flags |= flags; }
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void clearFlags(int flags) { _flags &= ~flags; }
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int getFlags() const { return _flags; }
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void setEnabled(bool e) { if (e) setFlags(WIDGET_ENABLED); else clearFlags(WIDGET_ENABLED); }
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bool isEnabled() const { return _flags & WIDGET_ENABLED; }
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bool isVisible() const { return !(_flags & WIDGET_INVISIBLE); }
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protected:
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virtual void drawWidget(bool hilite) {}
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virtual void receivedFocusWidget() {}
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virtual void lostFocusWidget() {}
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virtual Widget *findWidget(int x, int y) { return this; }
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void releaseFocus() { assert(_boss); _boss->releaseFocus(); }
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// By default, delegate unhandled commands to the boss
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void handleCommand(CommandSender *sender, uint32 cmd, uint32 data) { assert(_boss); _boss->handleCommand(sender, cmd, data); }
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};
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/* StaticTextWidget */
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class StaticTextWidget : public Widget {
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protected:
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typedef Common::String String;
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typedef Graphics::TextAlignment TextAlignment;
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String _label;
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TextAlignment _align;
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public:
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StaticTextWidget(GuiObject *boss, int x, int y, int w, int h, const String &text, TextAlignment align);
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void setValue(int value);
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void setLabel(const String &label) { _label = label; }
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const String &getLabel() const { return _label; }
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void setAlign(TextAlignment align) { _align = align; }
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TextAlignment getAlign() const { return _align; }
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protected:
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void drawWidget(bool hilite);
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};
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/* ButtonWidget */
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class ButtonWidget : public StaticTextWidget, public CommandSender {
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friend class Dialog; // Needed for the hotkey handling
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protected:
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uint32 _cmd;
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uint8 _hotkey;
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public:
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ButtonWidget(GuiObject *boss, int x, int y, int w, int h, const String &label, uint32 cmd = 0, uint8 hotkey = 0);
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void setCmd(uint32 cmd) { _cmd = cmd; }
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uint32 getCmd() const { return _cmd; }
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void handleMouseUp(int x, int y, int button, int clickCount);
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void handleMouseEntered(int button) { setFlags(WIDGET_HILITED); draw(); }
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void handleMouseLeft(int button) { clearFlags(WIDGET_HILITED); draw(); }
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protected:
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void drawWidget(bool hilite);
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};
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/* CheckboxWidget */
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class CheckboxWidget : public ButtonWidget {
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protected:
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bool _state;
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public:
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CheckboxWidget(GuiObject *boss, int x, int y, int w, int h, const String &label, uint32 cmd = 0, uint8 hotkey = 0);
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void handleMouseUp(int x, int y, int button, int clickCount);
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virtual void handleMouseEntered(int button) {}
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virtual void handleMouseLeft(int button) {}
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void setState(bool state);
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void toggleState() { setState(!_state); }
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bool getState() const { return _state; }
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protected:
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void drawWidget(bool hilite);
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};
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/* SliderWidget */
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class SliderWidget : public ButtonWidget {
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protected:
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int _value, _oldValue;
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int _valueMin, _valueMax;
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bool _isDragging;
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uint _labelWidth;
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public:
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SliderWidget(GuiObject *boss, int x, int y, int w, int h, const String &label = String::emptyString, uint labelWidth = 0, uint32 cmd = 0, uint8 hotkey = 0);
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void setValue(int value) { _value = value; }
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int getValue() const { return _value; }
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void setMinValue(int value) { _valueMin = value; }
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int getMinValue() const { return _valueMin; }
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void setMaxValue(int value) { _valueMax = value; }
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int getMaxValue() const { return _valueMax; }
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void handleMouseMoved(int x, int y, int button);
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void handleMouseDown(int x, int y, int button, int clickCount);
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void handleMouseUp(int x, int y, int button, int clickCount);
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protected:
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void drawWidget(bool hilite);
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int valueToPos(int value);
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int posToValue(int pos);
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};
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} // End of namespace GUI
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#endif
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