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https://github.com/libretro/scummvm.git
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Added new class for displaying conversation talk dialogs
svn-id: r20760
This commit is contained in:
Paul Gilbert
parent
7ce5441ad6
commit
b55cf4b0ff
@ -287,24 +287,13 @@ uint16 Surface::textWidth(const char *s, int numChars) {
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return result;
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}
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Surface *Surface::newDialog(uint16 width, uint8 numLines, char **lines, bool varLength, uint8 colour) {
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Surface *s = new Surface(width, (DIALOG_EDGE_SIZE + 3) * 2 +
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numLines * (FONT_HEIGHT - 1));
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s->createDialog();
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for (uint8 ctr = 0; ctr < numLines; ++ctr)
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s->writeString(DIALOG_EDGE_SIZE + 3, DIALOG_EDGE_SIZE + 3 +
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(ctr * (FONT_HEIGHT - 1)), lines[ctr], true, colour, varLength);
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return s;
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}
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Surface *Surface::newDialog(uint16 width, const char *line, uint8 colour) {
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uint8 numLines = 1;
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void Surface::wordWrap(char *text, uint16 width, char **&lines, uint8 &numLines) {
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numLines = 1;
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uint16 lineWidth = 0;
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char *s, *lineCopy;
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char *s;
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bool newLine;
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s = lineCopy = strdup(line);
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s = text;
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// Scan through the text and insert NULLs to break the line into allowable widths
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@ -320,20 +309,25 @@ Surface *Surface::newDialog(uint16 width, const char *line, uint8 colour) {
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newLine = false;
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}
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if (wordEnd) --wordEnd; // move back one to end of word
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else wordEnd = strchr(s, '\0') - 1;
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if (wordEnd) {
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if (!newLine) --wordEnd;
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} else {
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wordEnd = strchr(s, '\0') - 1;
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}
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uint16 wordSize = textWidth(s, (int) (wordEnd - s + 1));
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if (lineWidth + wordSize > width - (DIALOG_EDGE_SIZE + 3) * 2) {
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if (lineWidth + wordSize > width) {
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// Break word onto next line
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*(wordStart - 1) = '\0';
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++numLines;
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lineWidth = textWidth(wordStart, (int) (wordEnd - wordStart + 1));
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if (newLine)
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lineWidth = 0;
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else
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lineWidth = textWidth(wordStart, (int) (wordEnd - wordStart + 1));
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} else if (newLine) {
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// Break on newline
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++numLines;
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++wordEnd;
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*wordEnd = '\0';
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lineWidth = 0;
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} else {
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@ -345,10 +339,29 @@ Surface *Surface::newDialog(uint16 width, const char *line, uint8 colour) {
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}
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// Set up a list for the start of each line
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char **lines = (char **) Memory::alloc(sizeof(char *) * numLines);
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lines[0] = lineCopy;
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lines = (char **) Memory::alloc(sizeof(char *) * numLines);
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lines[0] = text;
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for (int ctr = 1; ctr < numLines; ++ctr)
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lines[ctr] = strchr(lines[ctr-1], 0) + 1;
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}
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Surface *Surface::newDialog(uint16 width, uint8 numLines, char **lines, bool varLength, uint8 colour) {
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Surface *s = new Surface(width, (DIALOG_EDGE_SIZE + 3) * 2 +
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numLines * (FONT_HEIGHT - 1));
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s->createDialog();
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for (uint8 ctr = 0; ctr < numLines; ++ctr)
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s->writeString(DIALOG_EDGE_SIZE + 3, DIALOG_EDGE_SIZE + 3 +
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(ctr * (FONT_HEIGHT - 1)), lines[ctr], true, colour, varLength);
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return s;
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}
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Surface *Surface::newDialog(uint16 width, const char *line, uint8 colour) {
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char **lines;
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char *lineCopy = strdup(line);
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uint8 numLines;
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wordWrap(lineCopy, width - (DIALOG_EDGE_SIZE + 3) * 2, lines, numLines);
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// Create the dialog
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Surface *result = newDialog(width, numLines, lines, true, colour);
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@ -387,12 +400,11 @@ void Dialog::show(const char *text) {
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void Dialog::show(uint16 stringId) {
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char buffer[MAX_DESC_SIZE];
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Resources &res = Resources::getReference();
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Room &r = Room::getReference();
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StringData &sl = StringData::getReference();
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Action action = r.getCurrentAction();
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const char *actionName = (action == NONE) ? NULL : actionList[action];
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const char *actionName = res.getCurrentActionStr();
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char hotspotName[MAX_HOTSPOT_NAME_SIZE];
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if (r.hotspotId() == 0)
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strcpy(hotspotName, "");
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@ -453,4 +465,89 @@ void Dialog::showMessage(uint16 messageId, uint16 characterId) {
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}
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}
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/*--------------------------------------------------------------------------*/
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TalkDialog::TalkDialog(uint16 characterId, uint16 descId) {
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StringData &strings = StringData::getReference();
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Resources &res = Resources::getReference();
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HotspotData *character = res.getHotspot(characterId);
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char charName[MAX_DESC_SIZE];
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strings.getString(character->nameId, charName, NULL, NULL);
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strings.getString(descId, _desc, NULL, NULL);
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// Apply word wrapping to figure out the needed size of the dialog
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Surface::wordWrap(_desc, TALK_DIALOG_WIDTH - TALK_DIALOG_EDGE_SIZE * 2 - 2,
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_lines, _numLines);
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_surface = new Surface(TALK_DIALOG_WIDTH,
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(_numLines + 1) * FONT_HEIGHT + TALK_DIALOG_EDGE_SIZE * 4);
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// Draw the dialog
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byte *pSrc = res.getTalkDialogData().data();
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byte *pDest = _surface->data().data();
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int xPos, yPos;
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// Handle the dialog top
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for (yPos = 0; yPos < TALK_DIALOG_EDGE_SIZE; ++yPos) {
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*pDest++ = *pSrc++;
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*pDest++ = *pSrc++;
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for (xPos = 0; xPos < TALK_DIALOG_WIDTH - TALK_DIALOG_EDGE_SIZE - 2; ++xPos)
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*pDest++ = *pSrc;
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++pSrc;
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for (xPos = 0; xPos < TALK_DIALOG_EDGE_SIZE; ++xPos)
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*pDest++ = *pSrc++;
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}
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// Handle the middle section
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for (yPos = 0; yPos < _surface->height() - TALK_DIALOG_EDGE_SIZE * 2; ++yPos) {
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byte *pSrcTemp = pSrc;
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// Left edge
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for (xPos = 0; xPos < TALK_DIALOG_EDGE_SIZE; ++xPos)
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*pDest++ = *pSrcTemp++;
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// Middle section
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for (xPos = 0; xPos < _surface->width() - TALK_DIALOG_EDGE_SIZE * 2; ++xPos)
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*pDest++ = *pSrcTemp;
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++pSrcTemp;
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// Right edge
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for (xPos = 0; xPos < TALK_DIALOG_EDGE_SIZE; ++xPos)
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*pDest++ = *pSrcTemp++;
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}
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// Bottom section
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pSrc += TALK_DIALOG_EDGE_SIZE * 2 + 1;
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for (yPos = 0; yPos < TALK_DIALOG_EDGE_SIZE; ++yPos) {
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for (xPos = 0; xPos < TALK_DIALOG_EDGE_SIZE; ++xPos)
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*pDest++ = *pSrc++;
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for (xPos = 0; xPos < TALK_DIALOG_WIDTH - TALK_DIALOG_EDGE_SIZE - 2; ++xPos)
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*pDest++ = *pSrc;
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++pSrc;
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*pDest++ = *pSrc++;
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*pDest++ = *pSrc++;
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}
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// Write out the character name
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uint16 charWidth = Surface::textWidth(charName);
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_surface->writeString((TALK_DIALOG_WIDTH-charWidth)/2, TALK_DIALOG_EDGE_SIZE + 2,
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charName, true, DIALOG_WHITE_COLOUR);
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// TEMPORARY CODE - write out description. More properly, the text is meant to
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// be displayed slowly, word by word
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for (int lineCtr = 0; lineCtr < _numLines; ++lineCtr)
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_surface->writeString(TALK_DIALOG_EDGE_SIZE + 2,
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TALK_DIALOG_EDGE_SIZE + 4 + (lineCtr + 1) * FONT_HEIGHT,
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_lines[lineCtr], true);
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}
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TalkDialog::~TalkDialog() {
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delete _lines;
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delete _surface;
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}
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} // end of namespace Lure
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@ -66,6 +66,7 @@ public:
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void centerOnScreen();
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static uint16 textWidth(const char *s, int numChars = 0);
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static void wordWrap(char *text, uint16 width, char **&lines, uint8 &numLines);
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static Surface *newDialog(uint16 width, uint8 numLines, char **lines, bool varLength = true, uint8 colour = DIALOG_TEXT_COLOUR);
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static Surface *newDialog(uint16 width, const char *lines, uint8 colour = DIALOG_TEXT_COLOUR);
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static Surface *getScreen(uint16 resourceId);
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@ -78,6 +79,20 @@ public:
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static void showMessage(uint16 messageId, uint16 characterId);
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};
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class TalkDialog {
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private:
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Surface *_surface;
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char _desc[MAX_DESC_SIZE];
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char **_lines;
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uint8 _numLines;
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public:
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TalkDialog(uint16 characterId, uint16 descId);
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~TalkDialog();
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char *desc() { return _desc; }
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Surface &surface() { return *_surface; }
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};
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} // End of namespace Lure
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#endif
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