tmp PIScreen

git-svn-id: svn://db.shs.com.ru/pip@10 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src/console/piscreendrawer.cpp

@@ -0,0 +1,165 @@
+/*
+    PIP - Platform Independent Primitives
+    Console output/input
+    Copyright (C) 2015  Ivan Pelipenko peri4ko@gmail.com
+
+    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 "piscreendrawer.h"
+
+/** \class PIScreenDrawer
+ * \brief Console output class
+ * \details
+ * \section PIScreen_sec0 Synopsis
+ * This class provides output to console with automatic alignment and update.
+ * It supports tabs, keyboard listening, formats and colors.
+ * 
+ * \section PIScreen_sec1 Layout
+ * %PIScreen works with variable pointers. You should add your variables with
+ * functions \a addVariable() which receives label name, pointer to variable
+ * and optional column and format. Columns count is dynamically increased if
+ * new column used. E.g. if you add variable to empty tab to column 3, columns
+ * count will be increased to 3, but two firsts columns will be empty. Each column
+ * filled from top to bottom, but you can add just string with function
+ * \a addString() or add empty line with function \a addEmptyLine(). Layout scheme:
+ * \image html piconsole_layout.png
+ * 
+ * \section PIScreen_sec2 Keyboard usage
+ * %PIScreen should to be single in application. %PIScreen aggregate PIKbdListener
+ * which grab keyboard and automatic switch tabs by theirs bind keys. If there is no
+ * tab binded to pressed key external function "slot" will be called
+ * 
+ **/
+
+using namespace PIScreenTypes;
+
+
+void PIScreenDrawer::clear() {
+	for (int i = 0; i < cells.size_s(); ++i)
+		cells[i].fill(Cell());
+}
+
+
+void PIScreenDrawer::drawPixel(int x, int y, const PIChar & c, Color col_char, Color col_back, CharFlags flags_char) {
+	if (x < 0 || x >= width || y < 0 || y >= height) return;
+	cells[y][x].symbol = c;
+	cells[y][x].format.color_char = col_char;
+	cells[y][x].format.color_back = col_back;
+	cells[y][x].format.flags = flags_char;
+}
+
+
+void PIScreenDrawer::drawLine(int x0, int y0, int x1, int y1, const PIChar & c, Color col_char, Color col_back, CharFlags flags_char) {
+	if (x0 == x1 && y0 == y1) drawPixel(x0, y0, c, col_char, col_back, flags_char);
+	Cell cc;
+	cc.symbol = c;
+	cc.format.color_char = col_char;
+	cc.format.color_back = col_back;
+	cc.format.flags = flags_char;
+	int x = 0, y = 0;
+	if (piAbsi(x1 - x0) >= piAbsi(y1 - y0)) {
+		float dy = (y1 - y0) / float(piAbsi(x1 - x0)), cy = y0;
+		int dx = x0 < x1 ? 1 : -1;
+		for (int i = x0; i != x1; i += dx) {
+			x = i; y = piRound(cy);
+			if (x >= 0 && x < width && y >= 0 && y < height)
+				cells[y][x] = cc;
+			cy += dy;
+		}
+		y = piRound(cy);
+		if (x1 >= 0 && x1 < width && y >= 0 && y < height)
+			cells[y][x1] = cc;
+	} else {
+		float dx = (x1 - x0) / float(piAbsi(y1 - y0)), cx = x0;
+		int dy = y0 < y1 ? 1 : -1;
+		for (int i = y0; i != y1; i += dy) {
+			x = piRound(cx); y = i;
+			if (x >= 0 && x < width && y >= 0 && y < height)
+				cells[y][x] = cc;
+			cx += dx;
+		}
+		x = piRound(cx);
+		if (x >= 0 && x < width && y1 >= 0 && y1 < height)
+			cells[y1][x] = cc;
+	}
+}
+
+
+void PIScreenDrawer::drawRect(int x0, int y0, int x1, int y1, const PIChar & c, Color col_char, Color col_back, CharFlags flags_char) {
+	if (x0 == x1 && y0 == y1) drawPixel(x0, y0, c, col_char, col_back, flags_char);
+	Cell cc;
+	cc.symbol = c;
+	cc.format.color_char = col_char;
+	cc.format.color_back = col_back;
+	cc.format.flags = flags_char;
+	int dx = x0 < x1 ? 1 : -1;
+	int dy = y0 < y1 ? 1 : -1;
+	int xs[2] = {x0, x1};
+	int ys[2] = {y0, y1};
+	for (int k = 0; k < 2; ++k) {
+		int j = ys[k];
+		if (j >= 0 && j < height) {
+			PIVector<Cell> & cv(cells[j]);
+			for (int i = x0; i != x1; i += dx)
+				if (i >= 0 && i < width)
+					cv[i] = cc;
+		}
+		j = xs[k];
+		if (j >= 0 && j < width) {
+			for (int i = y0; i != y1; i += dy)
+				if (i >= 0 && i < height)
+					cells[i][j] = cc;
+		}
+	}
+	int i = x1, j = y1;
+	if (i >= 0 && i < width && j >= 0 && j < height)
+		cells[j][i] = cc;
+}
+
+
+void PIScreenDrawer::fillRect(int x0, int y0, int x1, int y1, const PIChar & c, Color col_char, Color col_back, CharFlags flags_char) {
+	if (x0 == x1 && y0 == y1) drawPixel(x0, y0, c, col_char, col_back, flags_char);
+	Cell cc;
+	cc.symbol = c;
+	cc.format.color_char = col_char;
+	cc.format.color_back = col_back;
+	cc.format.flags = flags_char;
+	int dx = x0 < x1 ? 1 : -1;
+	int dy = y0 < y1 ? 1 : -1;
+	for (int j = y0; j != y1; j += dy)
+		if (j >= 0 && j < height) {
+			PIVector<Cell> & cv(cells[j]);
+			for (int i = x0; i != x1; i += dx)
+				if (i >= 0 && i < width)
+					cv[i] = cc;
+		}
+}
+
+
+void PIScreenDrawer::drawText(int x, int y, const PIString & s, Color col_char, Color col_back, CharFlags flags_char) {
+	if (x < 0 || x >= width || y < 0 || y >= height) return;
+	PIVector<Cell> & cv(cells[y]);
+	Cell cc;
+	cc.format.color_char = col_char;
+	cc.format.color_back = col_back;
+	cc.format.flags = flags_char;
+	for (int i = 0; i < s.size_s(); ++i) {
+		int j = i + x;
+		if (j >= 0 && j < width) {
+			cc.symbol = s[i];
+			cv[j] = cc;
+		}
+	}
+}