godot/editor/output_strings.cpp

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/*************************************************************************/
/* output_strings.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
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#include "output_strings.h"
void OutputStrings::update_scrollbars() {
Size2 hmin = h_scroll->get_combined_minimum_size();
Size2 vmin = v_scroll->get_combined_minimum_size();
v_scroll->set_anchor(MARGIN_LEFT, ANCHOR_END);
v_scroll->set_anchor(MARGIN_RIGHT, ANCHOR_END);
v_scroll->set_anchor(MARGIN_BOTTOM, ANCHOR_END);
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v_scroll->set_begin(Point2(-vmin.width, 0));
v_scroll->set_end(Point2(0, 0));
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h_scroll->set_anchor(MARGIN_RIGHT, ANCHOR_END);
h_scroll->set_anchor(MARGIN_TOP, ANCHOR_END);
h_scroll->set_anchor(MARGIN_BOTTOM, ANCHOR_END);
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h_scroll->set_begin(Point2(0, -hmin.y));
h_scroll->set_end(Point2(-vmin.x, 0));
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margin.y = hmin.y;
margin.x = vmin.x;
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Ref<StyleBox> tree_st = get_stylebox("bg", "Tree");
int page = ((size_height - (int)margin.y - tree_st->get_margin(MARGIN_TOP)) / font_height);
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v_scroll->set_page(page);
}
void OutputStrings::_notification(int p_what) {
switch (p_what) {
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case NOTIFICATION_DRAW: {
if (following) {
updating = true;
v_scroll->set_value(v_scroll->get_max() - v_scroll->get_page());
updating = false;
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}
RID ci = get_canvas_item();
Size2 size = get_size();
Ref<Font> font = get_font("font", "Tree");
Ref<StyleBox> tree_st = get_stylebox("bg", "Tree");
tree_st->draw(ci, Rect2(Point2(), size));
Color color = get_color("font_color", "Tree");
Ref<Texture> icon_error = get_icon("Error", "EditorIcons");
Ref<Texture> icon_warning = get_icon("Warning", "EditorIcons");
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//int lines = (size_height-(int)margin.y) / font_height;
Point2 ofs = tree_st->get_offset();
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LineMap::Element *E = line_map.find(v_scroll->get_value());
float h_ofs = (int)h_scroll->get_value();
Point2 icon_ofs = Point2(0, (font_height - (int)icon_error->get_height()) / 2);
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while (E && ofs.y < (size_height - (int)margin.y)) {
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String str = E->get().text;
Point2 line_ofs = ofs;
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switch (E->get().type) {
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case LINE_WARNING: {
icon_warning->draw(ci, line_ofs + icon_ofs);
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} break;
case LINE_ERROR: {
icon_error->draw(ci, line_ofs + icon_ofs);
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} break;
case LINE_LINK: {
} break;
default: {}
}
line_ofs.y += font->get_ascent();
line_ofs.x += icon_error->get_width() + 4;
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for (int i = 0; i < str.length(); i++) {
if (line_ofs.x - h_ofs < 0) {
line_ofs.x += font->get_char_size(str[i], str[i + 1]).width;
} else if (line_ofs.x - h_ofs > size.width - margin.width) {
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break;
} else {
line_ofs.x += font->draw_char(ci, Point2(line_ofs.x - h_ofs, line_ofs.y), str[i], str[i + 1], color);
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}
}
ofs.y += font_height;
E = E->next();
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}
} break;
case NOTIFICATION_ENTER_TREE:
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case NOTIFICATION_RESIZED: {
font_height = get_font("font", "Tree")->get_height();
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size_height = get_size().height;
update_scrollbars();
} break;
}
}
void OutputStrings::_hscroll_changed(float p_value) {
if (updating)
return;
update();
}
void OutputStrings::_vscroll_changed(float p_value) {
if (updating)
return;
//user changed scroll
following = (p_value + v_scroll->get_page()) >= v_scroll->get_max();
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update();
}
void OutputStrings::add_line(const String &p_text, const Variant &p_meta, const LineType p_type) {
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Vector<String> strings = p_text.split("\n");
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for (int i = 0; i < strings.size(); i++) {
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if (strings[i].length() == 0)
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continue;
int last = line_map.empty() ? 0 : (line_map.back()->key() + 1);
Line l;
l.text = strings[i];
l.meta = p_meta;
l.type = p_type;
line_map.insert(last, l);
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updating = true;
v_scroll->set_max(last + 1);
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v_scroll->set_min(line_map.front()->key());
updating = false;
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}
while (line_map.size() > line_max_count) {
line_map.erase(line_map.front());
}
update();
}
void OutputStrings::_bind_methods() {
ClassDB::bind_method("_vscroll_changed", &OutputStrings::_vscroll_changed);
ClassDB::bind_method("_hscroll_changed", &OutputStrings::_hscroll_changed);
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}
OutputStrings::OutputStrings() {
following = true;
updating = false;
line_max_count = 4096;
h_scroll = memnew(HScrollBar);
v_scroll = memnew(VScrollBar);
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add_child(h_scroll);
add_child(v_scroll);
size_height = 1;
font_height = 1;
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update_scrollbars();
h_scroll->connect("value_changed", this, "_hscroll_changed");
v_scroll->connect("value_changed", this, "_vscroll_changed");
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}