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engines/ultima/nuvie/gui/gui_area.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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ultima/nuvie/core/nuvie_defs.h"
+#include "ultima/nuvie/gui/gui.h"
+#include "ultima/nuvie/gui/gui_area.h"
+
+namespace Ultima {
+namespace Nuvie {
+
+GUI_Area:: GUI_Area(int x, int y, int w, int h, uint8 r, uint8 g, uint8 b, int aShape)
+	: GUI_Widget(nullptr, x, y, w, h), R(r), G(g), B(b), color(0), useFrame(0), shape(aShape),
+	  frameThickness(0), fB(0), fG(0), fR(0), frameColor(0) {
+}
+
+GUI_Area:: GUI_Area(int x, int y, int w, int h, uint8 r, uint8 g, uint8 b,
+					uint8 fr, uint8 fg, uint8 fb, int fthick, int aShape)
+	: GUI_Widget(nullptr, x, y, w, h), R(r), G(g), B(b), color(0), useFrame(1),
+	  fR(fr), fG(fg), fB(fb), frameColor(0), frameThickness(fthick), shape(aShape) {
+}
+
+/* Map the color to the display */
+void
+GUI_Area:: SetDisplay(Screen *s) {
+	GUI_Widget::SetDisplay(s);
+	color = surface->format.RGBToColor(R, G, B);
+	if (useFrame)
+		frameColor = surface->format.RGBToColor(fR, fG, fB);
+}
+
+/* Show the widget  */
+void GUI_Area::Display(bool full_redraw) {
+	Common::Rect framerect;
+	int x, dy, r1, r2, x0, y0;
+
+	switch (shape) {
+	case AREA_ROUND:
+
+		r1 = area.width() >> 1;
+		r2 = area.height() >> 1;
+		x0 = area.left + r1;
+		y0 = area.top + r2;
+		for (x = area.left; x < area.left + area.width(); x++) {
+			dy = (int)((double) r2 * sin(acos((double)(x - x0) / (double) r1)));
+			framerect.left = x;
+			framerect.top = y0 - dy;
+			framerect.setWidth(1);
+			framerect.setHeight(dy << 1);
+			SDL_FillRect(surface, &framerect, color);
+			if (useFrame) {
+				if ((x == area.left) || (x == area.left + area.width() - 1)) {
+					SDL_FillRect(surface, &framerect, frameColor);
+				}
+				framerect.setHeight(frameThickness);
+				SDL_FillRect(surface, &framerect, frameColor);
+				framerect.top = y0 + dy - frameThickness;
+				SDL_FillRect(surface, &framerect, frameColor);
+			}
+		}
+		/*
+		******** GUI_FillEllipse is not ready yet, GUI_BoundaryFill either *****
+		        framerect=area;
+		        if (useFrame)
+		        {
+		          GUI_FillEllipse(screen,&framerect,frameColor);
+		          area.left+=frameThickness; area.width()-=frameThickness << 1;
+		          area.top+=frameThickness; area.height()-=frameThickness << 1;
+		        }
+		        GUI_FillEllipse(screen,&framerect,color);
+		*/
+		break;
+
+	case AREA_ANGULAR:
+		framerect = area;
+		SDL_FillRect(surface, &framerect, color);
+
+		/* draw frame */
+		if (useFrame) {
+			framerect = area;
+			framerect.setHeight(frameThickness);
+			SDL_FillRect(surface, &framerect, frameColor);
+			framerect = area;
+			framerect.top = framerect.bottom - frameThickness;
+			SDL_FillRect(surface, &framerect, frameColor);
+			framerect = area;
+			framerect.setWidth(frameThickness);
+			SDL_FillRect(surface, &framerect, frameColor);
+			framerect = area;
+			framerect.left = framerect.right - frameThickness;
+			SDL_FillRect(surface, &framerect, frameColor);
+		}
+		break;
+	}
+
+	DisplayChildren();
+
+	screen->update(area.left, area.top, area.width(), area.height());
+
+	return;
+}
+
+} // End of namespace Nuvie
+} // End of namespace Ultima