1 /* ScummVM - Graphic Adventure Engine
2 *
3 * ScummVM is the legal property of its developers, whose names
4 * are too numerous to list here. Please refer to the COPYRIGHT
5 * file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "titanic/support/text_cursor.h"
24 #include "titanic/events.h"
25 #include "titanic/support/screen_manager.h"
26 #include "titanic/titanic.h"
27 #include "common/textconsole.h"
28
29 namespace Titanic {
30
CTextCursor(CScreenManager * screenManager)31 CTextCursor::CTextCursor(CScreenManager *screenManager) :
32 _screenManager(screenManager), _active(false), _blinkVisible(false),
33 _backRenderSurface(nullptr), _frontRenderSurface(nullptr),
34 _blinkDelay(300), _size(2, 10), _priorBlinkTime(0),
35 _cursorR(0), _cursorG(0), _cursorB(0), _mode(-1) {
36 _surface = screenManager->createSurface(10, 10, 16);
37 }
38
~CTextCursor()39 CTextCursor::~CTextCursor() {
40 delete _surface;
41 }
42
setColor(byte r,byte g,byte b)43 void CTextCursor::setColor(byte r, byte g, byte b) {
44 _cursorR = r;
45 _cursorG = g;
46 _cursorB = b;
47 }
48
show()49 void CTextCursor::show() {
50 _backRenderSurface = _screenManager->getSurface(SURFACE_BACKBUFFER);
51 _frontRenderSurface = _screenManager->getFrontRenderSurface();
52 _active = true;
53 _priorBlinkTime = g_vm->_events->getTicksCount();
54 }
55
hide()56 void CTextCursor::hide() {
57 _active = false;
58 }
59
draw()60 void CTextCursor::draw() {
61 if (!_active)
62 return;
63
64 // Handle updating whether the blinking cursor is visible or not
65 uint newTicks = g_vm->_events->getTicksCount();
66 while (newTicks > (_priorBlinkTime + _blinkDelay)) {
67 _priorBlinkTime += _blinkDelay;
68 _blinkVisible = !_blinkVisible;
69 }
70
71 if (_blinkVisible) {
72 Rect cursorRect = getCursorBounds();
73 _surface->blitFrom(Common::Point(0, 0), _backRenderSurface, &cursorRect);
74
75 if (!_screenBounds.isEmpty())
76 // Limit the cursor rect to only within designated screen area
77 cursorRect.constrain(_screenBounds);
78
79 if (!cursorRect.isEmpty()) {
80 // Draw cursor onto the screen
81 _backRenderSurface->_ddSurface->fillRect(&cursorRect,
82 _cursorR, _cursorG, _cursorB);
83 }
84
85 //_screenManager->blitFrom(SURFACE_BACKBUFFER, _surface, &_pos);
86 }
87 }
88
89 } // End of namespace Titanic
90