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https://github.com/libretro/scummvm.git
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443 lines
10 KiB
C++
443 lines
10 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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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* aint32 with this program; if not, write to the Free Software
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*
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*
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* Based on the original sources
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* Faery Tale II -- The Halls of the Dead
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* (c) 1993-1996 The Wyrmkeep Entertainment Co.
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*/
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#include "saga2/saga2.h"
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#include "saga2/grequest.h"
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#include "saga2/modal.h"
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#include "saga2/mouseimg.h"
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namespace Saga2 {
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extern gFont *mainFont;
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extern vDisplayPage *drawPage;
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const int maxLines = 16,
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maxButtons = 16,
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maxText = 512,
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maxButtonText = 128,
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buttonWidth = 60;
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// This function takes a string which is composed of several
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// substrings, each separated by a delimiter character, and
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// breaks it up into the individual sub-strings.
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int16 SplitString(
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char *text,
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char *textStart[],
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int16 maxStrings,
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char delimiter) {
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int16 count;
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for (count = 0; count < maxStrings;) {
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textStart[count++] = text;
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if ((text = strchr(text, delimiter)) == nullptr) break;
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*text++ = '\0';
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}
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return count;
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}
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static void handleRequestEvent(gEvent &ev) {
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gWindow *win;
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requestInfo *ri;
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if (ev.panel && ev.eventType == gEventNewValue && ev.value) {
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win = ev.panel->getWindow(); // get the window pointer
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ri = win ? (requestInfo *)win->userData : nullptr;
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if (ri) {
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ri->running = 0;
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ri->result = ev.panel->id;
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}
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}
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}
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/* ===================================================================== *
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ModalDialogWindow class: The base class for modal dialog windows
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* ===================================================================== */
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class ModalDialogWindow : public ModalWindow {
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int16 titleCount;
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Point16 titlePos[maxLines];
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char *titleStrings[maxLines];
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char titleBuf[maxText];
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void positionText(
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char *windowText,
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va_list args,
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const Rect16 &textArea);
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public:
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ModalDialogWindow(const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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va_list args);
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ModalDialogWindow(const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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va_list args,
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const Rect16 &textArea);
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void drawClipped(
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gPort &port,
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const Point16 &offset,
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const Rect16 &r) override;
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};
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void ModalDialogWindow::positionText(
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char *windowText,
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va_list args,
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const Rect16 &textArea) {
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if (windowText) {
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int16 i,
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yPos,
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maxY;
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int16 fontHeight = mainFont->height;
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// make a copy of the window text string
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vsprintf(titleBuf, windowText, args);
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// break up the title text string
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titleCount = SplitString(titleBuf, titleStrings, maxLines, '\n');
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yPos = textArea.y +
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((textArea.height - titleCount * fontHeight) >> 1);
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yPos = MAX(yPos, textArea.y);
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maxY = textArea.y + textArea.height - fontHeight;
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for (i = 0; i < titleCount; i++, yPos += fontHeight) {
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if (yPos < maxY) {
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titlePos[i].y = yPos;
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titlePos[i].x =
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textArea.x +
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((textArea.width -
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TextWidth(mainFont, titleStrings[i], -1, 0))
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>> 1);
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} else titleCount = i;
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}
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} else titleCount = 0;
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}
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ModalDialogWindow::ModalDialogWindow(
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const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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va_list args) :
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ModalWindow(r, ident, cmd) {
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positionText(windowText, args, Rect16(0, 0, r.width, r.height));
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}
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ModalDialogWindow::ModalDialogWindow(
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const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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va_list args,
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const Rect16 &textArea) :
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ModalWindow(r, ident, cmd) {
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positionText(windowText, args, textArea);
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}
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void ModalDialogWindow::drawClipped(
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gPort &port,
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const Point16 &offset,
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const Rect16 &r) {
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if (!_extent.overlap(r)) return;
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int16 i;
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Point16 origin;
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gFont *textFont = mainFont;
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Rect16 rect;
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SAVE_GPORT_STATE(port);
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origin.x = _extent.x - offset.x;
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origin.y = _extent.y - offset.y;
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rect.x = origin.x;
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rect.y = origin.y;
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rect.width = _extent.width;
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rect.height = _extent.height;
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port.setColor(4);
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port.frameRect(rect, 2);
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rect.expand(-2, -2);
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port.setColor(12);
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port.fillRect(rect);
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port.setFont(textFont);
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for (i = 0; i < titleCount; i++) {
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Point16 textPos = origin + titlePos[i];
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port.moveTo(textPos + Point16(-1, -1));
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port.setColor(2);
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port.drawText(titleStrings[i], -1);
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port.moveTo(textPos + Point16(1, 1));
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port.setColor(14);
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port.drawText(titleStrings[i], -1);
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port.moveTo(textPos);
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port.setColor(8);
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port.drawText(titleStrings[i], -1);
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}
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ModalWindow::drawClipped(port, offset, r);
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}
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/* ===================================================================== *
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ModalRequestWindow class: A modal request dialog box
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* ===================================================================== */
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class ModalRequestWindow : public ModalDialogWindow {
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char buttonBuf[maxButtonText];
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static Rect16 getTextArea(const Rect16 &r) {
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return Rect16(2, 2, r.width - 4, r.height - mainFont->height - 12);
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}
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public:
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ModalRequestWindow(
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const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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char *buttonText,
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va_list args);
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};
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ModalRequestWindow::ModalRequestWindow(
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const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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char *buttonText,
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va_list args) :
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ModalDialogWindow(r, ident, cmd, windowText, args, getTextArea(r)) {
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int16 i;
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int16 xPos;
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int16 extraSpace,
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intervals;
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int16 buttonCount;
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char *buttonStrings[maxButtons];
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int16 fontHeight = mainFont->height;
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Common::strlcpy(buttonBuf, (buttonText ? buttonText : "_OK"), sizeof(buttonBuf));
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// break up the button text string
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buttonCount = SplitString(buttonBuf, buttonStrings, maxButtons, '|');
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extraSpace = r.width - buttonWidth * buttonCount;
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intervals = buttonCount * 2 + 1;
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xPos = 0;
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for (i = 0; i < buttonCount; i++) {
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int16 width,
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extra;
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width = buttonWidth;
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if (intervals > 0) {
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extra = extraSpace / intervals;
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extraSpace -= extra;
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intervals--;
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xPos += extra;
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}
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if (intervals > 0) {
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extra = extraSpace / intervals;
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extraSpace -= extra;
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intervals--;
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} else extra = 0;
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width += extra;
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new LabeledButton(*this,
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Rect16(xPos,
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r.height - fontHeight - 8,
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width,
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fontHeight + 6),
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*mouseCursors[kMouseCloseBx2Image],
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*mouseCursors[kMouseCloseBx1Image],
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buttonStrings[i],
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i,
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handleRequestEvent);
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xPos += width;
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}
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}
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/* ===================================================================== *
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ModalDisplayWindow class: A modal text display window
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* ===================================================================== */
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class ModalDisplayWindow : public ModalDialogWindow {
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public:
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ModalDisplayWindow(
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const Rect16 &r,
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uint16 ident,
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AppFunc *cmd,
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char *windowText,
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va_list args) :
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ModalDialogWindow(r, ident, cmd, windowText, args) {
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}
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void pointerRelease(gPanelMessage &) override;
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bool keyStroke(gPanelMessage &) override;
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};
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void ModalDisplayWindow::pointerRelease(gPanelMessage &) {
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requestInfo *ri = (requestInfo *)userData;
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if (ri) ri->running = false;
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}
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bool ModalDisplayWindow::keyStroke(gPanelMessage &) {
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requestInfo *ri = (requestInfo *)userData;
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if (ri) ri->running = false;
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return true;
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}
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/* ===================================================================== *
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Modal game dialog functions
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* ===================================================================== */
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int16 GameDialogA(
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char *windowText,
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char *buttonText,
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int /*resnum*/,
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va_list args) {
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requestInfo rInfo;
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ModalRequestWindow *win;
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rInfo.result = -1;
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rInfo.running = true;
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win = new ModalRequestWindow(
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Rect16((drawPage->size.x - 200) / 2,
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(drawPage->size.y - 100) / 3,
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200,
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100),
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0,
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nullptr,
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windowText,
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buttonText,
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args);
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if (win == nullptr) {
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// REM: perhaps a memory alert of some sort???
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error("Unable to open requester window.");
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}
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win->userData = &rInfo;
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win->open();
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EventLoop(rInfo.running, false);
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delete win;
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return rInfo.result;
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}
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int16 GameDialog(
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char *windowText,
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char *buttonText,
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int resNum,
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...) {
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int16 result;
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va_list argptr;
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va_start(argptr, resNum);
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result = GameDialogA(windowText,
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buttonText,
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resNum,
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argptr);
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va_end(argptr);
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return result;
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}
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int16 GameDisplayA(
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char *windowText,
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int /*resnum*/,
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va_list args) {
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requestInfo rInfo;
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ModalDisplayWindow *win;
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rInfo.result = -1;
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rInfo.running = true;
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win = new ModalDisplayWindow(
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Rect16((drawPage->size.x - 200) / 2,
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(drawPage->size.y - 100) / 3,
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200,
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100),
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0,
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nullptr,
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windowText,
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args);
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if (win == nullptr) {
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// REM: perhaps a memory alert of some sort???
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error("Unable to open requester window.");
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}
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win->userData = &rInfo;
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win->open();
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EventLoop(rInfo.running, false);
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delete win;
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return rInfo.result;
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}
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int16 GameDisplay(
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char *windowText,
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int resNum,
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...) {
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int16 result;
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va_list argptr;
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va_start(argptr, resNum);
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result = GameDisplayA(windowText,
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resNum,
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argptr);
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va_end(argptr);
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return result;
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}
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} // end of namespace Saga2
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