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authorFilippos Karapetis2010-01-05 01:37:57 +0000
committerFilippos Karapetis2010-01-05 01:37:57 +0000
commitd99aa0f12634bed7b5101b4b5a64f50ee744961b (patch)
tree037401495ebf794eaa3b7386b49ee03dbe1cdac1 /engines/sci/graphics/text.cpp
parent2f1a909696838533758acdb026b1fd9c3631d6f0 (diff)
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svn-id: r47009
Diffstat (limited to 'engines/sci/graphics/text.cpp')
-rw-r--r--engines/sci/graphics/text.cpp410
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diff --git a/engines/sci/graphics/text.cpp b/engines/sci/graphics/text.cpp
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+/* 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/util.h"
+#include "common/stack.h"
+#include "graphics/primitives.h"
+
+#include "sci/sci.h"
+#include "sci/engine/state.h"
+#include "sci/graphics/gfx.h"
+#include "sci/graphics/font.h"
+#include "sci/graphics/text.h"
+
+namespace Sci {
+
+Text::Text(ResourceManager *resMan, Gfx *gfx, Screen *screen)
+ : _resMan(resMan), _gfx(gfx), _screen(screen) {
+ init();
+}
+
+Text::~Text() {
+ delete _font;
+}
+
+void Text::init() {
+ _font = NULL;
+ _codeFonts = NULL;
+ _codeFontsCount = 0;
+ _codeColors = NULL;
+ _codeColorsCount = 0;
+}
+
+GuiResourceId Text::GetFontId() {
+ return _gfx->_curPort->fontId;
+}
+
+Font *Text::GetFont() {
+ if ((_font == NULL) || (_font->getResourceId() != _gfx->_curPort->fontId))
+ _font = new Font(_resMan, _gfx->_curPort->fontId);
+
+ return _font;
+}
+
+void Text::SetFont(GuiResourceId fontId) {
+ if ((_font == NULL) || (_font->getResourceId() != fontId))
+ _font = new Font(_resMan, fontId);
+
+ _gfx->_curPort->fontId = _font->getResourceId();
+ _gfx->_curPort->fontHeight = _font->getHeight();
+}
+
+void Text::CodeSetFonts(int argc, reg_t *argv) {
+ int i;
+
+ delete _codeFonts;
+ _codeFontsCount = argc;
+ _codeFonts = new GuiResourceId[argc];
+ for (i = 0; i < argc; i++) {
+ _codeFonts[i] = (GuiResourceId)argv[i].toUint16();
+ }
+}
+
+void Text::CodeSetColors(int argc, reg_t *argv) {
+ int i;
+
+ delete _codeColors;
+ _codeColorsCount = argc;
+ _codeColors = new uint16[argc];
+ for (i = 0; i < argc; i++) {
+ _codeColors[i] = argv[i].toUint16();
+ }
+}
+
+void Text::ClearChar(int16 chr) {
+ if (_gfx->_curPort->penMode != 1)
+ return;
+ Common::Rect rect;
+ rect.top = _gfx->_curPort->curTop;
+ rect.bottom = rect.top + _gfx->_curPort->fontHeight;
+ rect.left = _gfx->_curPort->curLeft;
+ rect.right = rect.left + GetFont()->getCharWidth(chr);
+ _gfx->EraseRect(rect);
+}
+
+void Text::DrawChar(int16 chr) {
+ chr = chr & 0xFF;
+ ClearChar(chr);
+ StdChar(chr);
+ _gfx->_curPort->curLeft += GetFont()->getCharWidth(chr);
+}
+
+void Text::StdChar(int16 chr) {
+#if 0
+ CResFont*res = getResFont();
+ if (res)
+ res->Draw(chr, _curPort->top + _curPort->curTop, _curPort->left
+ + _curPort->curLeft, _vSeg, 320, _curPort->penClr,
+ _curPort->textFace);
+#endif
+}
+
+// This internal function gets called as soon as a '|' is found in a text
+// It will process the encountered code and set new font/set color
+// We only support one-digit codes currently, don't know if multi-digit codes are possible
+// Returns textcode character count
+int16 Text::CodeProcessing(const char *&text, GuiResourceId orgFontId, int16 orgPenColor) {
+ const char *textCode = text;
+ int16 textCodeSize = 0;
+ char curCode;
+ unsigned char curCodeParm;
+
+ // Find the end of the textcode
+ while ((++textCodeSize) && (*text != 0) && (*text++ != 0x7C)) { }
+
+ // possible TextCodes:
+ // c -> sets textColor to current port pen color
+ // cX -> sets textColor to _textColors[X-1]
+ curCode = textCode[0];
+ curCodeParm = textCode[1];
+ if (isdigit(curCodeParm)) {
+ curCodeParm -= '0';
+ } else {
+ curCodeParm = 0;
+ }
+ switch (curCode) {
+ case 'c': // set text color
+ if (curCodeParm == 0) {
+ _gfx->_curPort->penClr = orgPenColor;
+ } else {
+ if (curCodeParm < _codeColorsCount) {
+ _gfx->_curPort->penClr = _codeColors[curCodeParm];
+ }
+ }
+ break;
+ case 'f':
+ if (curCodeParm == 0) {
+ SetFont(orgFontId);
+ } else {
+ if (curCodeParm < _codeFontsCount) {
+ SetFont(_codeFonts[curCodeParm]);
+ }
+ }
+ break;
+ }
+ return textCodeSize;
+}
+
+// return max # of chars to fit maxwidth with full words
+int16 Text::GetLongest(const char *text, int16 maxWidth, GuiResourceId orgFontId) {
+ char curChar;
+ int16 maxChars = 0, curCharCount = 0;
+ uint16 width = 0;
+ GuiResourceId oldFontId = GetFontId();
+ int16 oldPenColor = _gfx->_curPort->penClr;
+
+ GetFont();
+ if (!_font)
+ return 0;
+
+ while (width <= maxWidth) {
+ curChar = *text++;
+ switch (curChar) {
+ case 0x7C:
+ if (getSciVersion() >= SCI_VERSION_1_1) {
+ curCharCount++;
+ curCharCount += CodeProcessing(text, orgFontId, oldPenColor);
+ continue;
+ }
+ break;
+
+ case 0xD:
+ curCharCount++;
+ continue;
+
+ case 0xA:
+ curCharCount++;
+ case 0:
+ SetFont(oldFontId);
+ _gfx->PenColor(oldPenColor);
+ return curCharCount;
+
+ case ' ':
+ maxChars = curCharCount + 1;
+ break;
+ }
+ width += _font->getCharWidth(curChar);
+ curCharCount++;
+ }
+ SetFont(oldFontId);
+ _gfx->PenColor(oldPenColor);
+ return maxChars;
+}
+
+void Text::Width(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 &textWidth, int16 &textHeight) {
+ unsigned char curChar;
+ GuiResourceId oldFontId = GetFontId();
+ int16 oldPenColor = _gfx->_curPort->penClr;
+
+ textWidth = 0; textHeight = 0;
+
+ GetFont();
+ if (_font) {
+ text += from;
+ while (len--) {
+ curChar = *text++;
+ switch (curChar) {
+ case 0x0A:
+ case 0x0D:
+ textHeight = MAX<int16> (textHeight, _gfx->_curPort->fontHeight);
+ break;
+ case 0x7C:
+ if (getSciVersion() >= SCI_VERSION_1_1) {
+ len -= CodeProcessing(text, orgFontId, 0);
+ break;
+ }
+ default:
+ textHeight = MAX<int16> (textHeight, _gfx->_curPort->fontHeight);
+ textWidth += _font->getCharWidth(curChar);
+ }
+ }
+ }
+ SetFont(oldFontId);
+ _gfx->PenColor(oldPenColor);
+ return;
+}
+
+void Text::StringWidth(const char *str, GuiResourceId orgFontId, int16 &textWidth, int16 &textHeight) {
+ Width(str, 0, (int16)strlen(str), orgFontId, textWidth, textHeight);
+}
+
+void Text::ShowString(const char *str, GuiResourceId orgFontId, int16 orgPenColor) {
+ Show(str, 0, (int16)strlen(str), orgFontId, orgPenColor);
+}
+void Text::DrawString(const char *str, GuiResourceId orgFontId, int16 orgPenColor) {
+ Draw(str, 0, (int16)strlen(str), orgFontId, orgPenColor);
+}
+
+int16 Text::Size(Common::Rect &rect, const char *str, GuiResourceId fontId, int16 maxWidth) {
+ GuiResourceId oldFontId = GetFontId();
+ int16 oldPenColor = _gfx->_curPort->penClr;
+ int16 charCount;
+ int16 maxTextWidth = 0, textWidth;
+ int16 totalHeight = 0, textHeight;
+
+ if (fontId != -1)
+ SetFont(fontId);
+ rect.top = rect.left = 0;
+
+ if (maxWidth < 0) { // force output as single line
+ StringWidth(str, oldFontId, textWidth, textHeight);
+ rect.bottom = textHeight;
+ rect.right = textWidth;
+ } else {
+ // rect.right=found widest line with RTextWidth and GetLongest
+ // rect.bottom=num. lines * GetPointSize
+ rect.right = (maxWidth ? maxWidth : 192);
+ const char*p = str;
+ while (*p) {
+ //if (*p == 0xD || *p == 0xA) {
+ // p++;
+ // continue;
+ //}
+ charCount = GetLongest(p, rect.right, oldFontId);
+ if (charCount == 0)
+ break;
+ Width(p, 0, charCount, oldFontId, textWidth, textHeight);
+ maxTextWidth = MAX(textWidth, maxTextWidth);
+ totalHeight += textHeight;
+ p += charCount;
+ }
+ rect.bottom = totalHeight;
+ rect.right = maxWidth ? maxWidth : MIN(rect.right, maxTextWidth);
+ }
+ SetFont(oldFontId);
+ _gfx->PenColor(oldPenColor);
+ return rect.right;
+}
+
+// returns maximum font height used
+void Text::Draw(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 orgPenColor) {
+ int16 curChar, charWidth;
+ Common::Rect rect;
+
+ GetFont();
+ if (!_font)
+ return;
+
+ rect.top = _gfx->_curPort->curTop;
+ rect.bottom = rect.top + _gfx->_curPort->fontHeight;
+ text += from;
+ while (len--) {
+ curChar = (*text++);
+ switch (curChar) {
+ case 0x0A:
+ case 0x0D:
+ case 0:
+ break;
+ case 0x7C:
+ if (getSciVersion() >= SCI_VERSION_1_1) {
+ len -= CodeProcessing(text, orgFontId, orgPenColor);
+ break;
+ }
+ default:
+ charWidth = _font->getCharWidth(curChar);
+ // clear char
+ if (_gfx->_curPort->penMode == 1) {
+ rect.left = _gfx->_curPort->curLeft;
+ rect.right = rect.left + charWidth;
+ _gfx->EraseRect(rect);
+ }
+ // CharStd
+ _font->draw(_screen, curChar, _gfx->_curPort->top + _gfx->_curPort->curTop, _gfx->_curPort->left + _gfx->_curPort->curLeft, _gfx->_curPort->penClr, _gfx->_curPort->greyedOutput);
+ _gfx->_curPort->curLeft += charWidth;
+ }
+ }
+}
+
+// returns maximum font height used
+void Text::Show(const char *text, int16 from, int16 len, GuiResourceId orgFontId, int16 orgPenColor) {
+ Common::Rect rect;
+
+ rect.top = _gfx->_curPort->curTop;
+ rect.bottom = rect.top + _gfx->GetPointSize();
+ rect.left = _gfx->_curPort->curLeft;
+ Draw(text, from, len, orgFontId, orgPenColor);
+ rect.right = _gfx->_curPort->curLeft;
+ _gfx->BitsShow(rect);
+}
+
+// Draws a text in rect.
+void Text::Box(const char *text, int16 bshow, const Common::Rect &rect, TextAlignment alignment, GuiResourceId fontId) {
+ int16 textWidth, textHeight, charCount;
+ int16 offset = 0;
+ int16 hline = 0;
+ GuiResourceId orgFontId = GetFontId();
+ int16 orgPenColor = _gfx->_curPort->penClr;
+
+ if (fontId != -1)
+ SetFont(fontId);
+
+ while (*text) {
+// if (*text == 0xD || *text == 0xA) {
+// text++;
+// continue;
+// }
+ charCount = GetLongest(text, rect.width(), orgFontId);
+ if (charCount == 0)
+ break;
+ Width(text, 0, charCount, orgFontId, textWidth, textHeight);
+ switch (alignment) {
+ case SCI_TEXT_ALIGNMENT_RIGHT:
+ offset = rect.width() - textWidth;
+ break;
+ case SCI_TEXT_ALIGNMENT_CENTER:
+ offset = (rect.width() - textWidth) / 2;
+ break;
+ case SCI_TEXT_ALIGNMENT_LEFT:
+ offset = 0;
+ break;
+
+ default: // left-aligned
+ warning("Invalid alignment %d used in TextBox()", alignment);
+ }
+ _gfx->MoveTo(rect.left + offset, rect.top + hline);
+
+ if (bshow) {
+ Show(text, 0, charCount, orgFontId, orgPenColor);
+ } else {
+ Draw(text, 0, charCount, orgFontId, orgPenColor);
+ }
+
+ hline += textHeight;
+ text += charCount;
+ }
+ SetFont(orgFontId);
+ _gfx->PenColor(orgPenColor);
+}
+
+void Text::Draw_String(const char *text) {
+ GuiResourceId orgFontId = GetFontId();
+ int16 orgPenColor = _gfx->_curPort->penClr;
+
+ Draw(text, 0, strlen(text), orgFontId, orgPenColor);
+ SetFont(orgFontId);
+ _gfx->PenColor(orgPenColor);
+}
+
+} // End of namespace Sci