From b417df720584c101f3799874a0c836a543a8d0a8 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sun, 12 Oct 2008 14:55:10 +0000
Subject: user interface updates, work-in-progress

---
 src/ui/input.cc | 174 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 174 insertions(+)
 create mode 100644 src/ui/input.cc

(limited to 'src/ui/input.cc')

diff --git a/src/ui/input.cc b/src/ui/input.cc
new file mode 100644
index 0000000..0c4ea32
--- /dev/null
+++ b/src/ui/input.cc
@@ -0,0 +1,174 @@
+/*
+   ui/input.cc
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#include "ui/input.h"
+#include "ui/paint.h"
+#include "auxiliary/functions.h"
+#include "core/core.h"
+#include "render/render.h"
+
+namespace ui
+{
+
+Input::Input(Widget *parent) : Widget(parent)
+{
+	input_text.clear();
+	input_pos = 0;
+	
+	set_label("input");
+	set_background(false);
+	set_border(false);
+}
+
+Input::~Input()
+{
+}
+
+void Input::clear()
+{
+	input_text.clear();
+	input_pos = 0;
+}
+void Input::set_text(std::string const &text)
+{
+	input_text.assign(text);
+	input_pos = input_text.size();
+}
+
+void Input::set_text(const char *text)
+{
+	if (text)
+		input_text.assign(text);
+	else
+		input_text.clear();
+	input_pos = input_text.size();
+}
+
+void Input::draw()
+{
+	draw_background();
+	draw_border();
+	
+	using namespace render;
+	size_t text_width = (size_t) width() / font()->width();
+	math::Vector2f v(global_location());
+	paint::color(palette()->foreground());
+	
+	std::string firstpart(input_text.substr(0, input_pos));
+	size_t draw_width = 0;
+	const char *c = firstpart.c_str();
+	
+	while (*c) {
+		if (aux::is_color_code(c)) {
+			c++;
+		} else {
+			draw_width++;
+		}
+		c++;
+	}
+	
+	c = firstpart.c_str();
+	while (*c && draw_width > text_width - 2) {
+		if (aux::is_color_code(c)) {
+			c++;
+			Text::setcolor(*c);
+		} else {
+			draw_width--;
+		}
+		c++;
+	}
+	
+	// draw the part before the cursor
+	if (*c) {
+		paint::text(v, size(), font(), std::string(c), AlignLeft | AlignVCenter);
+	}
+	
+	// draw the part behind the cursor
+	v.x += draw_width * font()->width();
+	if (input_pos < input_text.size()) {
+		// FIXME limit to width
+		if (input_pos > 1 && aux::is_color_code(input_text.c_str() + input_pos -1)) {
+			Text::setcolor(input_text[input_pos]);
+		}
+		c = input_text.c_str() + input_pos;
+		paint::text(v, size(), font(), std::string(c), AlignLeft | AlignVCenter);
+	}
+	
+	// draw cursor
+	if (has_input_focus() && (core::application()->time() - ::floorf(core::application()->time())) < 0.5f) {
+		std::string cursor("^B");
+		cursor += (char) 11;
+		paint::text(v, size(), font(), cursor, AlignLeft | AlignVCenter);
+	}
+}
+
+bool Input::on_keypress(const int key, const unsigned int modifier)
+{
+	switch (key) {
+		case SDLK_TAB:
+			core::CommandBuffer::complete(input_text, input_pos);
+			return true;
+			break;
+			
+		case SDLK_HOME:
+			input_pos = 0;
+			return true;
+			break;
+			
+		case SDLK_END:
+			input_pos = input_text.size();
+			return true;
+			break;
+			
+		case SDLK_LEFT:
+			if (input_pos > 0)
+				input_pos--;
+			return true;
+			break;
+			
+		case SDLK_RIGHT:
+			if (input_pos < input_text.size())
+				input_pos++;
+			return true;
+			break;
+			
+		case SDLK_DELETE:
+			if (input_text.size() && input_pos < input_text.size()) {
+				input_text.erase(input_pos, 1);
+			}
+			return true;
+			break;
+			
+		case SDLK_BACKSPACE:
+			if (input_text.size() && input_pos) {
+				input_text.erase(input_pos-1, 1);
+				input_pos--;
+			}
+			return true;
+			break;
+			
+		default:
+			if ((key >= 32) && (key <175)) {
+				if (input_pos == input_text.size())
+					input_text += (char)key;
+				else
+					input_text.insert(input_pos, 1, (char)key);
+				input_pos++;
+				return true;
+			}
+			break;
+	}
+	
+	return false;
+}
+bool Input::on_keyrelease(const int key, const unsigned int modifier)
+{
+	return false;
+}
+
+}
+
+
-- 
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