scummvm/engines/m4/gui.cpp
Eugene Sandulenko 696897b058 Whoa! Removing trailing spaces.
svn-id: r35648
2009-01-01 15:06:43 +00:00

1218 lines
31 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/events.h"
#include "common/keyboard.h"
#include "m4/globals.h"
#include "m4/events.h"
#include "m4/font.h"
#include "m4/graphics.h"
#include "m4/viewmgr.h"
#include "m4/gui.h"
#include "m4/midi.h"
#include "m4/scene.h"
#include "m4/m4.h"
namespace M4 {
//--------------------------------------------------------------------------
// DialogView class
//
// Defines a generic base class for dialogs, that some of the classes
// in the object hierharchy require as a parent
//--------------------------------------------------------------------------
void DialogView::close() {
// Default to simply destroying the given dialog
_vm->_viewManager->deleteView(this);
}
//--------------------------------------------------------------------------
// GUIObject class
//
// Defines a generic object that appears in a view
//--------------------------------------------------------------------------
GUIObject::GUIObject(View *owner, const Common::Rect &bounds) {
_parent = owner;
_bounds = bounds;
}
//--------------------------------------------------------------------------
// MenuObject class
//
// Defines a specialised GUI object that appears in a dialog
//--------------------------------------------------------------------------
MenuObject::MenuObject(DialogView *owner, int objectId, int xs, int ys, int width, int height,
bool greyed, bool transparent):
GUIObject(owner, Common::Rect(xs, ys, xs + width, ys + height)) {
_objectId = objectId;
_bounds.top = ys;
_bounds.bottom = ys + height - 1;
_bounds.left = xs;
_bounds.right = xs + width - 1;
_transparent = transparent;
_objectState = greyed ? OS_GREYED : OS_NORMAL;
_callback = NULL;
if (transparent) {
_background = new M4Surface(width, height);
Common::Rect srcBounds(xs, ys, xs + width - 1, ys + height - 1);
_background->copyFrom(owner, srcBounds, 0, 0);
} else {
_background = NULL;
}
}
MenuObject::~MenuObject() {
if (_background)
delete _background;
}
void MenuObject::onExecute() {
// If a callback function has been specified, then execute it
if (_callback)
_callback(parent(), this);
}
//--------------------------------------------------------------------------
// MenuButton class
//
// Defines a button object
//--------------------------------------------------------------------------
MenuButton::MenuButton(DialogView *owner, int buttonId, int xs, int ys, int width, int height,
MenuButton::Callback callbackFn, bool greyed, bool transparent,
ObjectType buttonType):
MenuObject(owner, buttonId, xs, ys, width, height, greyed, transparent) {
_objectType = buttonType;
_callback = callbackFn;
}
bool MenuButton::onEvent(M4EventType event, int param, int x, int y, MenuObject *&currentItem) {
bool redrawFlag = false;
bool callbackFlag = false;
bool handledFlag = true;
if (_objectState == OS_GREYED)
return false;
switch (event) {
case MEVENT_LEFT_CLICK:
case MEVENT_DOUBLECLICK:
if (isInside(x, y)) {
_objectState = OS_PRESSED;
if (currentItem != NULL)
currentItem = this;
redrawFlag = true;
} else {
currentItem = NULL;
if (_objectState != OS_NORMAL) {
_objectState = OS_PRESSED;
redrawFlag = true;
}
}
break;
case MEVENT_LEFT_DRAG:
case MEVENT_DOUBLECLICK_DRAG:
if (!currentItem) {
return true;
}
if (isInside(x, y)) {
if (_objectState != OS_PRESSED) {
_objectState = OS_PRESSED;
redrawFlag = true;
}
}
else {
if (_objectState != OS_MOUSEOVER) {
_objectState = OS_MOUSEOVER;
redrawFlag = true;
}
}
break;
case MEVENT_LEFT_RELEASE:
case MEVENT_DOUBLECLICK_RELEASE:
if (isInside(x, y)) {
if (currentItem) {
callbackFlag = true;
if (_objectType == OBJTYPE_OM_SWITCH_ON)
_objectType = OBJTYPE_OM_SWITCH_OFF;
else if (_objectType == OBJTYPE_OM_SWITCH_OFF)
_objectType = OBJTYPE_OM_SWITCH_ON;
}
else {
currentItem = this;
}
_objectState = OS_MOUSEOVER;
redrawFlag = true;
} else {
currentItem = NULL;
_objectState = OS_MOUSEOVER;
redrawFlag = true;
handledFlag = false;
}
break;
case MEVENT_MOVE:
if (isInside(x, y)) {
currentItem = this;
if (_objectState != OS_MOUSEOVER) {
_objectState = OS_MOUSEOVER;
redrawFlag = true;
}
}
else {
currentItem = NULL;
if (_objectState != OS_NORMAL) {
_objectState = OS_NORMAL;
redrawFlag = true;
handledFlag = false;
}
}
break;
case MEVENT_LEFT_HOLD:
case MEVENT_DOUBLECLICK_HOLD:
break;
default:
break;
}
//see if we need to redraw the button
if (redrawFlag) {
onRefresh();
// TODO: There may be a more efficient mechanism than refreshing the entire screen
// when a menu object refreshes itself
if (parent()->screenFlags().visible)
_vm->_viewManager->refreshAll();
}
// If a callback is flagged, then handle it
if (callbackFlag)
onExecute();
return handledFlag;
}
void MenuButton::onRefresh() {
M4Sprite *sprite = NULL;
SpriteAsset &sprites = *parent()->sprites();
// Switch handling for the various button types
switch (_objectType) {
case OBJTYPE_BUTTON:
sprite = sprites[GM_BUTTON_GREYED + _objectState];
break;
case OBJTYPE_OM_SWITCH_ON:
switch (_objectState) {
case OS_MOUSEOVER:
sprite = sprites[MENU_SS_SWITCH_ON_MOUSEOVER];
break;
case OS_PRESSED:
sprite = sprites[MENU_SS_SWITCH_ON_PRESSED];
break;
default:
sprite = sprites[MENU_SS_SWITCH_ON_NORMAL];
break;
}
break;
case OBJTYPE_OM_SWITCH_OFF:
switch (_objectState) {
case OS_MOUSEOVER:
sprite = sprites[MENU_SS_SWITCH_OFF_MOUSEOVER];
break;
case OS_PRESSED:
sprite = sprites[MENU_SS_SWITCH_OFF_PRESSED];
break;
default:
sprite = sprites[MENU_SS_SWITCH_OFF_NORMAL];
break;
}
break;
case OBJTYPE_OM_DONE:
sprite = sprites[OM_DONE_BTN_GREYED + _objectState];
break;
case OBJTYPE_OM_CANCEL:
sprite = (_objectState == OS_GREYED) ? sprites[OM_CANCEL_BTN_NORMAL] :
sprites[OM_CANCEL_BTN_NORMAL + _objectState - 1];
break;
case OBJTYPE_SL_SAVE:
sprite = sprites[SL_SAVE_BTN_GREYED + _objectState];
break;
case OBJTYPE_SL_LOAD:
sprite = sprites[SL_LOAD_BTN_GREYED + _objectState];
break;
case OBJTYPE_SL_CANCEL:
sprite = (_objectState == OS_GREYED) ? sprites[SL_CANCEL_BTN_NORMAL] :
sprites[SL_CANCEL_BTN_NORMAL + _objectState - 1];
break;
case OBJTYPE_SL_TEXT:
switch (_objectState) {
case OS_MOUSEOVER:
_vm->_font->setColors(TEXT_COLOR_MOUSEOVER_SHADOW, TEXT_COLOR_MOUSEOVER_FOREGROUND,
TEXT_COLOR_MOUSEOVER_HILIGHT);
sprite = sprites[SL_LINE_MOUSEOVER];
break;
case OS_PRESSED:
_vm->_font->setColors(TEXT_COLOR_PRESSED_SHADOW, TEXT_COLOR_PRESSED_FOREGROUND,
TEXT_COLOR_PRESSED_HILIGHT);
sprite = sprites[SL_LINE_PRESSED];
break;
case OS_GREYED:
_vm->_font->setColors(TEXT_COLOR_GREYED_SHADOW, TEXT_COLOR_GREYED_FOREGROUND,
TEXT_COLOR_GREYED_HILIGHT);
sprite = sprites[SL_LINE_NORMAL];
break;
default:
case OS_NORMAL:
_vm->_font->setColors(TEXT_COLOR_NORMAL_SHADOW, TEXT_COLOR_NORMAL_FOREGROUND,
TEXT_COLOR_NORMAL_HILIGHT);
sprite = sprites[SL_LINE_NORMAL];
break;
}
break;
default:
error("Unknown object type");
break;
}
// If no sprite object was set, then exit without doing anything
if (!sprite)
return;
// Draw the button
if (_transparent) {
// Transparent button, so restore original background
if (!_background)
return;
else
_background->copyTo(parent(), _bounds.left, _bounds.top);
}
sprite->copyTo(parent(), _bounds.left, _bounds.top, 0);
}
//--------------------------------------------------------------------------
// MenuHorizSlider class
//
// Defines a horizontal slider that allows selection of a percentage
//--------------------------------------------------------------------------
MenuHorizSlider::MenuHorizSlider(DialogView *owner, int objectId, int xs, int ys,
int width, int height, int initialPercentage, Callback callbackFn, bool transparent):
MenuObject(owner, objectId, xs, ys, width, height, false, transparent) {
_objectType = OBJTYPE_SLIDER;
_callback = callbackFn;
SpriteAsset &sprites = *owner->sprites();
_sliderState = HSLIDER_THUMB_NORMAL;
_thumbSize.x = sprites[OM_SLIDER_BTN_NORMAL]->width();
_thumbSize.y = sprites[OM_SLIDER_BTN_NORMAL]->height();
_maxThumbX = width - _thumbSize.x;
_percent = MAX(MIN(initialPercentage, 100), 0);
_thumbX = initialPercentage * _maxThumbX / 100;
}
void MenuHorizSlider::onRefresh() {
// If the slider is transparent, first copy in the background
if (_transparent) {
// Transparent button
if (!_background)
return;
_background->copyTo(parent(), _bounds.left, _bounds.top, 0);
}
// Get the thumb sprite for the slider
SpriteAsset &sprites = *parent()->sprites();
M4Sprite *sprite = sprites[OM_SLIDER_BTN_NORMAL + _sliderState];
assert(sprite);
// Fill in the area to the left of the thumbnail
if (_thumbX > 2) {
Common::Rect leftBounds(_bounds.left + 3, _bounds.top + 9, _bounds.left + _thumbX,
_bounds.top + _thumbSize.y - 9);
parent()->fillRect(leftBounds, SLIDER_BAR_COLOR);
}
// Draw the thumbnail
sprite->copyTo(parent(), _bounds.left + _thumbX, _bounds.top, 0);
}
bool MenuHorizSlider::onEvent(M4EventType event, int param, int x, int y, MenuObject *&currentItem) {
static bool movingFlag = false;
static int movingX = 0;
bool redrawFlag = false, handledFlag = false, callbackFlag = false;
if (event == KEVENT_KEY)
return false;
switch (event) {
case MEVENT_LEFT_CLICK:
case MEVENT_DOUBLECLICK:
if (isInside(x, y) && (x - _bounds.left >= _thumbX) &&
(x - _bounds.left <= _thumbX + _thumbSize.x - 1)) {
// The thumbnail has been clicked
_sliderState = HSLIDER_THUMB_PRESSED;
movingFlag = true;
movingX = x;
currentItem = this;
redrawFlag = true;
} else {
currentItem = NULL;
_sliderState = HSLIDER_THUMB_NORMAL;
redrawFlag = true;
}
redrawFlag = true;
break;
case MEVENT_LEFT_DRAG:
case MEVENT_DOUBLECLICK_DRAG:
if (!currentItem)
return true;
if (movingFlag) {
if (x != movingX) {
if (x < movingX)
_thumbX -= MIN(_thumbX, movingX - x);
else
_thumbX += MIN(_maxThumbX - _thumbX, x - movingX);
_percent = _thumbX * 100 / _maxThumbX;
redrawFlag = callbackFlag = true;
}
movingX = CLIP(x, _bounds.left + _thumbX,
_bounds.left + _thumbX + _thumbSize.x - 1);
} else {
currentItem = NULL;
}
break;
case MEVENT_LEFT_RELEASE:
case MEVENT_DOUBLECLICK_RELEASE:
if (!currentItem)
return true;
movingFlag = false;
if (isInside(x, y) && (x - _bounds.left >= _thumbX) &&
(x - _bounds.left <= _thumbX + _thumbSize.x - 1)) {
_sliderState = HSLIDER_THUMB_MOUSEOVER;
currentItem = this;
} else {
_sliderState = HSLIDER_THUMB_NORMAL;
currentItem = NULL;
}
redrawFlag = true;
callbackFlag = true;
break;
case MEVENT_MOVE:
if (isInside(x, y) && (x - _bounds.left >= _thumbX) &&
(x - _bounds.left <= _thumbX + _thumbSize.x - 1)) {
if (_sliderState != HSLIDER_THUMB_MOUSEOVER) {
_sliderState = HSLIDER_THUMB_MOUSEOVER;
currentItem = this;
}
} else {
if (_sliderState != HSLIDER_THUMB_NORMAL) {
_sliderState = HSLIDER_THUMB_NORMAL;
currentItem = NULL;
handledFlag = false;
}
}
redrawFlag = true;
break;
default:
break;
}
if (redrawFlag)
onRefresh();
if (callbackFlag)
onExecute();
return handledFlag;
}
//--------------------------------------------------------------------------
// MenuVertSlider class
//
// Defines a vertical slider that's used in the save/load dialog
//--------------------------------------------------------------------------
MenuVertSlider::MenuVertSlider(DialogView *owner, int objectId, int xs, int ys,
int width, int height, int initialPercentage, Callback callbackFn, bool transparent):
MenuObject(owner, objectId, xs, ys, width, height, false, transparent) {
_objectType = OBJTYPE_SLIDER;
_callback = callbackFn;
SpriteAsset &sprites = *owner->sprites();
_sliderState = VSLIDER_NONE;
_thumbSize.x = sprites[SL_SLIDER_BTN_NORMAL]->width();
_thumbSize.y = sprites[SL_SLIDER_BTN_NORMAL]->height();
_minThumbY = sprites[SL_UP_BTN_NORMAL]->height() + 1;
_maxThumbY = sprites[SL_UP_BTN_NORMAL]->height() + sprites[SL_SCROLLBAR]->height() -
sprites[SL_SLIDER_BTN_NORMAL]->height() - 1;
_percent = MAX(MIN(initialPercentage, 100), 0);
_thumbY = _minThumbY + ((_percent * (_maxThumbY - _minThumbY)) / 100);
}
MenuVertSliderState MenuVertSlider::getSliderArea(int y) {
if (y < _minThumbY)
return VSLIDER_UP;
else if (y < _thumbY)
return VSLIDER_PAGE_UP;
else if (y < _thumbY + _thumbSize.y)
return VSLIDER_THUMBNAIL;
else if (y < _maxThumbY + _thumbSize.y)
return VSLIDER_PAGE_DOWN;
else
return VSLIDER_DOWN;
}
void MenuVertSlider::onRefresh() {
// If the slider is transparent, first copy in the background
if (_transparent) {
// Transparent button
if (!_background)
return;
_background->copyTo(parent(), _bounds.left, _bounds.top, 0);
}
// Get the various needed sprites
SpriteAsset &sprites = *parent()->sprites();
M4Sprite *barSprite = sprites[SL_SCROLLBAR];
M4Sprite *thumbSprite = sprites[SL_SLIDER_BTN_NORMAL];
M4Sprite *upSprite = sprites[SL_UP_BTN_NORMAL];
M4Sprite *downSprite = sprites[SL_DOWN_BTN_NORMAL];
if (_objectState == OS_GREYED) {
upSprite = sprites[SL_UP_BTN_GREYED];
downSprite = sprites[SL_DOWN_BTN_GREYED];
thumbSprite = NULL;
} else if (_objectState == OS_MOUSEOVER) {
if (_sliderState == VSLIDER_UP)
upSprite = sprites[SL_UP_BTN_MOUSEOVER];
else if (_sliderState == VSLIDER_THUMBNAIL)
thumbSprite = sprites[SL_SLIDER_BTN_MOUSEOVER];
else if (_sliderState == VSLIDER_DOWN)
downSprite = sprites[SL_DOWN_BTN_MOUSEOVER];
}
else if (_objectState == OS_PRESSED) {
if (_sliderState == VSLIDER_UP)
upSprite = sprites[SL_UP_BTN_PRESSED];
else if (_sliderState == VSLIDER_THUMBNAIL)
thumbSprite = sprites[SL_SLIDER_BTN_PRESSED];
else if (_sliderState == VSLIDER_DOWN)
downSprite = sprites[SL_DOWN_BTN_PRESSED];
}
// Draw the sprites
upSprite->copyTo(parent(), _bounds.left, _bounds.top, 0);
barSprite->copyTo(parent(), _bounds.left, _bounds.top + upSprite->height(), 0);
downSprite->copyTo(parent(), _bounds.left, _bounds.top + upSprite->height() + barSprite->height(), 0);
if (thumbSprite)
thumbSprite->copyTo(parent(), _bounds.left, _bounds.top + _thumbY, 0);
}
bool MenuVertSlider::onEvent(M4EventType event, int param, int x, int y, MenuObject *&currentItem) {
static bool movingFlag = false;
static int movingY = 0;
static uint32 callbackTime;
MenuVertSliderState tempState;
int delta;
uint32 currentTime = g_system->getMillis();
bool redrawFlag = false;
bool handledFlag = true;
bool callbackFlag = false;
if (event == KEVENT_KEY)
return false;
if (_objectState == OS_GREYED) {
currentItem = NULL;
return false;
}
switch (event) {
case MEVENT_LEFT_CLICK:
case MEVENT_DOUBLECLICK:
if (isInside(x, y)) {
currentItem = this;
tempState = getSliderArea(y - _bounds.top);
if (tempState == VSLIDER_THUMBNAIL) {
movingFlag = true;
movingY = y;
}
if ((tempState == VSLIDER_PAGE_UP) || (tempState == VSLIDER_PAGE_DOWN)) {
_sliderState = tempState;
setState(OS_NORMAL);
} else {
_sliderState = tempState;
setState(OS_PRESSED);
redrawFlag = true;
}
callbackFlag = true;
} else {
currentItem = NULL;
setState(OS_NORMAL);
redrawFlag = true;
}
break;
case MEVENT_LEFT_DRAG:
case MEVENT_DOUBLECLICK_DRAG:
if (!currentItem)
return true;
if (movingFlag) {
if (y < movingY) {
delta = MIN(_thumbY - _minThumbY, movingY - y);
if (delta > 0) {
_thumbY -= delta;
_percent = ((_thumbY - _minThumbY) * 100) / (_maxThumbY - _minThumbY);
redrawFlag = true;
callbackFlag = true;
}
}
else if (y > movingY) {
delta = MIN(_maxThumbY - _thumbY, y - movingY);
if (delta > 0) {
_thumbY += delta;
_percent = ((_thumbY - _minThumbY) * 100) / (_maxThumbY - _minThumbY);
redrawFlag = true;
callbackFlag = true;
}
}
movingY = y;
if (movingY < (_thumbY + _bounds.top))
movingY = _thumbY + _bounds.top;
else if (movingY > (_bounds.top + _thumbY + _thumbSize.y - 1))
movingY = _bounds.top + _thumbY + _thumbSize.y - 1;
} else {
if (isInside(x, y)) {
tempState = getSliderArea(y - _bounds.top);
if (_sliderState == tempState) {
if ((tempState != VSLIDER_PAGE_UP) && (tempState != VSLIDER_PAGE_DOWN) &&
(_objectState != OS_PRESSED)) {
_sliderState = tempState;
setState(OS_PRESSED);
redrawFlag = true;
}
if (currentTime - callbackTime > 100)
callbackFlag = true;
} else {
if (_objectState != OS_MOUSEOVER)
setState(OS_MOUSEOVER);
redrawFlag = true;
}
callbackFlag = true;
} else {
if (_objectState != OS_MOUSEOVER) {
setState(OS_MOUSEOVER);
redrawFlag = true;
}
}
}
break;
case MEVENT_LEFT_RELEASE:
case MEVENT_DOUBLECLICK_RELEASE:
movingFlag = false;
if (isInside(x, y)) {
tempState = getSliderArea(y - _bounds.top);
if ((tempState == VSLIDER_PAGE_UP) || (tempState == VSLIDER_PAGE_DOWN))
setState(OS_NORMAL);
else {
setState(OS_MOUSEOVER);
currentItem = this;
}
} else {
setState(OS_NORMAL);
currentItem = NULL;
}
redrawFlag = true;
if (parent()->getMenuType() == LOAD_MENU)
updateThumbnails();
break;
case MEVENT_MOVE:
if (isInside(x, y)) {
currentItem = this;
tempState = getSliderArea(y - _bounds.top);
if (_sliderState != tempState) {
if ((tempState == VSLIDER_PAGE_UP) || (tempState == VSLIDER_PAGE_DOWN))
_objectState = OS_NORMAL;
else {
_sliderState = tempState;
_objectState = OS_MOUSEOVER;
}
redrawFlag = true;
}
} else {
currentItem = NULL;
if (_objectState != OS_NORMAL) {
_objectState = OS_NORMAL;
redrawFlag = true;
handledFlag = false;
}
}
break;
case MEVENT_LEFT_HOLD:
case MEVENT_DOUBLECLICK_HOLD:
if (!currentItem)
return true;
if (isInside(x, y)) {
tempState = getSliderArea(y - _bounds.top);
if (_sliderState == tempState) {
if (currentTime - callbackTime > 100)
callbackFlag = true;
}
}
break;
default:
break;
}
if (redrawFlag)
onRefresh();
if (callbackFlag) {
callbackTime = currentTime;
onExecute();
}
return handledFlag;
}
void MenuVertSlider::setPercentage(int value) {
_percent = value;
_thumbY = _minThumbY + ((_percent * (_maxThumbY - _minThumbY)) / 100);
onRefresh();
}
//--------------------------------------------------------------------------
// MenuMessage class
//
// Defines a message menu object
//--------------------------------------------------------------------------
MenuMessage::MenuMessage(DialogView *owner, int objectId, int xs, int ys, int width, int height,
bool transparent):
MenuObject(owner, objectId, xs, ys, width, height, false, transparent) {
}
void MenuMessage::onRefresh() {
SpriteAsset &sprites = *parent()->sprites();
M4Surface *sprite = NULL;
// Get the correct sprite to use
switch (_objectId) {
case SLTAG_SAVELOAD_LABEL:
sprite = (parent()->getMenuType() == SAVE_MENU) ? sprites[SL_SAVE_LABEL] :
sprites[SL_LOAD_LABEL];
break;
}
assert(sprite);
// Draw the sprite
if (_transparent) {
// Transparent button
if (!_background)
return;
// Restore original background and then do a transparent copy of the sprite
_background->copyTo(parent(), _bounds.left, _bounds.top);
}
sprite->copyTo(parent(), _bounds.left, _bounds.top, 0);
}
//--------------------------------------------------------------------------
// MenuImage class
//
// Defines a menu item that displays a given surface
//--------------------------------------------------------------------------
MenuImage::MenuImage(DialogView *owner, int objectId, int xs, int ys, int width, int height,
M4Surface *image, bool transparent):
MenuObject(owner, objectId, xs, ys, width, height, false, transparent) {
_sprite = image;
}
void MenuImage::onRefresh() {
if (!_sprite)
return;
// Draw the sprite
if (_transparent) {
// Transparent button
if (!_background)
return;
// Restore original background and then do a transparent copy of the sprite
_background->copyTo(parent(), _bounds.left, _bounds.top);
}
_sprite->copyTo(parent(), _bounds.left + (_bounds.width() - _sprite->width()) / 2,
_bounds.top + (_bounds.height() - _sprite->height()) / 2, 0);
}
//--------------------------------------------------------------------------
// MenuSaveLoadText class
//
// Defines a save/load dialog text entry
//--------------------------------------------------------------------------
MenuSaveLoadText::MenuSaveLoadText(DialogView *owner, int textId, int xs, int ys,
int width, int height, Callback callbackFn, bool greyed, bool transparent,
bool loadFlag, const char *displayText, int displayValue):
MenuButton(owner, textId, xs, ys, width, height, callbackFn, greyed, transparent, OBJTYPE_SL_TEXT) {
_loadFlag = loadFlag;
_displayText = displayText;
_displayValue = displayValue;
_index = textId - SLTAG_SLOTS_START;
_visible = true;
}
void MenuSaveLoadText::onRefresh() {
if (!_visible) return;
_vm->_font->setFont(FONT_MENU);
MenuButton::onRefresh();
if ((_objectType == OBJTYPE_SL_TEXT) && (_displayText != NULL)) {
int xp = _bounds.left + 4;
if (_displayValue != 0) {
char tempBuffer[5];
sprintf(tempBuffer, "%02d", _displayValue);
_vm->_font->writeString(_parent, tempBuffer, xp, _bounds.top + 1, 0, -1);
xp = _bounds.left + 26;
}
_vm->_font->writeString(_parent, _displayText, xp, _bounds.top + 1, 0, -1);
}
}
bool MenuSaveLoadText::onEvent(M4::M4EventType event, int param, int x, int y, M4::MenuObject *&currentItem) {
if (!_visible) return false;
bool handledFlag = MenuButton::onEvent(event, param, x, y, currentItem);
// Further handling will only be done when in load mode and a slot hasn't been selected
if (!_loadFlag || (parent()->_selectedSlot != -1))
return handledFlag;
// Only handling for certain event types
if ((event != MEVENT_MOVE) && (event != MEVENT_LEFT_DRAG) &&
(event != MEVENT_LEFT_RELEASE) && (event != MEVENT_DOUBLECLICK_DRAG) &&
(event != MEVENT_DOUBLECLICK_RELEASE))
return handledFlag;
MenuImage *thumbnail = (MenuImage *) parent()->getItem(SLTAG_THUMBNAIL);
// Check whether the cursor is over the button
if ((_objectState == OS_MOUSEOVER) || (_objectState == OS_PRESSED)) {
if (_index != parent()->_highlightedSlot) {
// Selected slot has changed
if (parent()->_savegameThumbnail != NULL)
delete parent()->_savegameThumbnail;
parent()->_highlightedSlot = _index;
parent()->_savegameThumbnail = _vm->_saveLoad->getThumbnail(_index + 1);
thumbnail->setSprite(parent()->_savegameThumbnail);
}
} else {
// If the mouse has moved outside the area of all the save slots, then the
// thumbnail needs to be removed
Common::Rect slotArea(50, 256, 288, 377);
if (isInside(x, y) || !slotArea.contains(x, y)) {
if (parent()->_savegameThumbnail) {
delete parent()->_savegameThumbnail;
parent()->_savegameThumbnail = NULL;
}
thumbnail->setSprite(parent()->sprites()->getFrame(SL_EMPTY_THUMBNAIL));
parent()->_highlightedSlot = -1;
}
}
return handledFlag;
}
void MenuSaveLoadText::setVisible(bool value) {
_visible = value;
parent()->refresh(_bounds);
}
//--------------------------------------------------------------------------
// MenuTextField class
//
// Defines a text entry field
//--------------------------------------------------------------------------
MenuTextField::MenuTextField(DialogView *owner, int fieldId, int xs, int ys, int width,
int height, bool greyed, Callback callbackFn,
const char *displayText, int displayValue, bool transparent):
MenuObject(owner, fieldId, xs, ys, width, height, greyed, transparent) {
_displayValue = displayValue;
_callback = callbackFn;
_pixelWidth = width - 27;
if (displayText) {
strcpy(_displayText, displayText);
_promptEnd = &_displayText[strlen(_displayText)];
} else {
_displayText[0] = '\0';
_promptEnd = &_displayText[0];
}
_cursor = _promptEnd;
}
void MenuTextField::onRefresh() {
bool focused = _objectState != OS_GREYED;
// Get the thumb sprite for the slider
SpriteAsset &sprites = *parent()->sprites();
M4Sprite *sprite = sprites[SL_LINE_NORMAL + OS_MOUSEOVER - 1];
// If the slider is transparent, first copy in the background
if (_transparent) {
// Transparent button
if (!_background)
return;
_background->copyTo(parent(), _bounds.left, _bounds.top, 0);
}
// Draw the sprite
sprite->copyTo(parent(), _bounds.left, _bounds.top, 0);
// Draw the text
_vm->_font->setFont(FONT_MENU);
_vm->_font->setColors(TEXT_COLOR_NORMAL_SHADOW, TEXT_COLOR_NORMAL_FOREGROUND,
TEXT_COLOR_NORMAL_HILIGHT);
int xp = _bounds.left + 4;
if (_displayValue != 0) {
char tempBuffer[5];
sprintf(tempBuffer, "%02d", _displayValue);
_vm->_font->writeString(_parent, tempBuffer, xp, _bounds.top + 1, 0, -1);
xp = _bounds.left + 26;
}
_vm->_font->writeString(_parent, _displayText, xp, _bounds.top + 1, 0, -1);
if (focused) {
// Draw in the cursor
if (_cursor) {
// Get the width of the string up to the cursor position
char tempCh = *_cursor;
*_cursor = '\0';
int stringWidth = _vm->_font->getWidth(_displayText);
*_cursor = tempCh;
parent()->setColor(TEXT_COLOR_MOUSEOVER_FOREGROUND);
parent()->vLine(xp + stringWidth + 1, _bounds.top + 1, _bounds.top + 12);
}
}
}
bool MenuTextField::onEvent(M4EventType event, int param, int x, int y, MenuObject *&currentItem) {
char tempStr[MAX_SAVEGAME_NAME];
int tempLen;
char *tempP;
bool handledFlag = false, redrawFlag = false, callbackFlag = false;
if (_objectState == OS_GREYED)
return false;
switch (event) {
case MEVENT_LEFT_CLICK:
case MEVENT_DOUBLECLICK:
parent()->_deleteSaveDesc = false;
if (isInside(x, y))
currentItem = this;
break;
case MEVENT_LEFT_RELEASE:
case MEVENT_DOUBLECLICK_RELEASE:
if (!currentItem)
return true;
currentItem = NULL;
if (isInside(x, y)) {
if (_objectState == OS_MOUSEOVER) {
tempLen = strlen(_displayText);
if (tempLen > 0) {
strcpy(tempStr, _displayText);
tempP = &tempStr[tempLen];
_vm->_font->setFont(FONT_MENU);
tempLen = _vm->_font->getWidth(tempStr);
while ((tempP != &tempStr[0]) && (tempLen > x - _bounds.left - 26)) {
*--tempP = '\0';
tempLen = _vm->_font->getWidth(tempStr);
}
_cursor = &_displayText[tempP - &tempStr[0]];
redrawFlag = true;
}
} else if (event == MEVENT_DOUBLECLICK_RELEASE) {
callbackFlag = true;
}
}
break;
case KEVENT_KEY:
switch (param) {
case Common::KEYCODE_RETURN:
case Common::KEYCODE_KP_ENTER:
parent()->_deleteSaveDesc = false;
callbackFlag = true;
break;
break;
case Common::KEYCODE_HOME:
parent()->_deleteSaveDesc = false;
_cursor = &_displayText[0];
redrawFlag = true;
break;
case Common::KEYCODE_END:
parent()->_deleteSaveDesc = false;
_cursor = _promptEnd;
redrawFlag = true;
break;
case Common::KEYCODE_LEFT:
case Common::KEYCODE_KP4:
parent()->_deleteSaveDesc = false;
if (_cursor > &_displayText[0]) {
--_cursor;
redrawFlag = true;
}
break;
case Common::KEYCODE_RIGHT:
case Common::KEYCODE_KP6:
parent()->_deleteSaveDesc = false;
if (_cursor < _promptEnd) {
++_cursor;
redrawFlag = true;
}
break;
case Common::KEYCODE_DELETE:
if (parent()->_deleteSaveDesc) {
_displayText[0] = '\0';
_promptEnd = &_displayText[0];
_cursor = _promptEnd;
redrawFlag = true;
} else if (_cursor < _promptEnd) {
strcpy(tempStr, _cursor + 1);
strcpy(_cursor, tempStr);
--_promptEnd;
redrawFlag = true;
}
break;
case Common::KEYCODE_BACKSPACE:
parent()->_deleteSaveDesc = false;
if (_cursor > &_displayText[0]) {
strcpy(tempStr, _cursor);
--_promptEnd;
--_cursor;
strcpy(_cursor, tempStr);
redrawFlag = true;
}
break;
default:
parent()->_deleteSaveDesc = false;
_vm->_font->setFont(FONT_MENU);
tempLen = _vm->_font->getWidth(_displayText);
if ((strlen(_displayText) < MAX_SAVEGAME_NAME - 1) &&
(tempLen < _pixelWidth - 12) && (param >= 32) && (param <= 127)) {
// Valid displayable character
if (_cursor < _promptEnd) {
strcpy(tempStr, _cursor);
sprintf(_cursor, "%c%s", (char)param, tempStr);
} else {
*_cursor = (char)param;
*(_cursor + 1) = '\0';
}
++_cursor;
++_promptEnd;
redrawFlag = true;
}
break;
}
break;
default:
break;
}
if (redrawFlag)
onRefresh();
if (callbackFlag)
onExecute();
return handledFlag;
}
//--------------------------------------------------------------------------
GUITextField::GUITextField(View *owner, const Common::Rect &bounds): GUIRect(owner, bounds, 0) {
}
void GUITextField::onRefresh() {
_parent->fillRect(_bounds, _vm->_palette->BLACK);
_vm->_font->setColors(3, 3, 3);
_vm->_font->setFont(FONT_INTERFACE);
_vm->_font->writeString(_parent, _text.c_str(), _bounds.left, _bounds.top, 0, 1);
}
//--------------------------------------------------------------------------
GUIButton::GUIButton(View *owner, const Common::Rect &bounds, int tag,
M4Surface *normalSprite, M4Surface *mouseOverSprite, M4Surface *pressedSprite):
GUIRect(owner, bounds, tag) {
_normalSprite = normalSprite;
_mouseOverSprite = mouseOverSprite;
_pressedSprite = pressedSprite;
_visible = true;
_tracking = false;
}
void GUIButton::onRefresh() {
_parent->fillRect(_bounds, _vm->_palette->BLACK);
if (_visible) {
switch (_buttonState) {
case BUTTON_MOUSEOVER:
_mouseOverSprite->copyTo(_parent, _bounds.left, _bounds.top, 0);
break;
case BUTTON_PRESSED:
_pressedSprite->copyTo(_parent, _bounds.left, _bounds.top, 0);
break;
default:
_normalSprite->copyTo(_parent, _bounds.left, _bounds.top, 0);
break;
}
}
}
bool GUIButton::onEvent(M4EventType eventType, int param, int x, int y, GUIObject *&currentItem) {
bool result = false;
bool isPressed = (eventType == MEVENT_LEFT_CLICK) || (eventType == MEVENT_LEFT_HOLD) ||
(eventType == MEVENT_LEFT_DRAG);
bool isOver = isInside(x, y);
GUIButtonState oldState = _buttonState;
if (isOver) {
if (isPressed) {
// Button is pressed
if (!_tracking) {
_tracking = true;
_buttonState = BUTTON_PRESSED;
}
_vm->_globals->invSuppressClickSound = false;
} else {
// Button isn't pressed
if (_tracking)
result = true;
else {
result = false;
_buttonState = BUTTON_MOUSEOVER;
_tracking = false;
}
}
} else {
_tracking = false;
_buttonState = BUTTON_NORMAL;
}
if (oldState != _buttonState)
onRefresh();
return result;
}
} // End of namespace M4