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424 lines
14 KiB
C++
424 lines
14 KiB
C++
/**************************************************************************/
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/* texture_button.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "texture_button.h"
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#include "core/typedefs.h"
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#include <stdlib.h>
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Size2 TextureButton::get_minimum_size() const {
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Size2 rscale = Control::get_minimum_size();
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if (!ignore_texture_size) {
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if (normal.is_null()) {
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if (pressed.is_null()) {
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if (hover.is_null()) {
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if (click_mask.is_null()) {
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rscale = Size2();
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} else {
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rscale = click_mask->get_size();
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}
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} else {
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rscale = hover->get_size();
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}
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} else {
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rscale = pressed->get_size();
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}
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} else {
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rscale = normal->get_size();
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}
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}
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return rscale.abs();
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}
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bool TextureButton::has_point(const Point2 &p_point) const {
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if (click_mask.is_valid()) {
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Point2 point = p_point;
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Rect2 rect;
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Size2 mask_size = click_mask->get_size();
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if (!_position_rect.has_area()) {
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rect.size = mask_size;
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} else if (_tile) {
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// if the stretch mode is tile we offset the point to keep it inside the mask size
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rect.size = mask_size;
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if (_position_rect.has_point(point)) {
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int cols = (int)Math::ceil(_position_rect.size.x / mask_size.x);
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int rows = (int)Math::ceil(_position_rect.size.y / mask_size.y);
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int col = (int)(point.x / mask_size.x) % cols;
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int row = (int)(point.y / mask_size.y) % rows;
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point.x -= mask_size.x * col;
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point.y -= mask_size.y * row;
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}
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} else {
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// we need to transform the point from our scaled / translated image back to our mask image
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Point2 ofs = _position_rect.position;
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Size2 scale = mask_size / _position_rect.size;
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switch (stretch_mode) {
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case STRETCH_KEEP_ASPECT_COVERED: {
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// if the stretch mode is aspect covered the image uses a texture region so we need to take that into account
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float min = MIN(scale.x, scale.y);
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scale.x = min;
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scale.y = min;
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ofs -= _texture_region.position / min;
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} break;
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default: {
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// FIXME: Why a switch if we only handle one enum value?
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}
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}
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// offset and scale the new point position to adjust it to the bitmask size
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point -= ofs;
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point *= scale;
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// finally, we need to check if the point is inside a rectangle with a position >= 0,0 and a size <= mask_size
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rect.position = Point2().max(_texture_region.position);
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rect.size = mask_size.min(_texture_region.size);
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}
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if (!rect.has_point(point)) {
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return false;
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}
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Point2i p = point;
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return click_mask->get_bitv(p);
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}
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return Control::has_point(p_point);
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}
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void TextureButton::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_DRAW: {
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DrawMode draw_mode = get_draw_mode();
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Ref<Texture2D> texdraw;
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switch (draw_mode) {
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case DRAW_NORMAL: {
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if (normal.is_valid()) {
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texdraw = normal;
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}
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} break;
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case DRAW_HOVER_PRESSED:
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case DRAW_PRESSED: {
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if (pressed.is_null()) {
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if (hover.is_null()) {
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if (normal.is_valid()) {
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texdraw = normal;
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}
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} else {
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texdraw = hover;
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}
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} else {
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texdraw = pressed;
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}
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} break;
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case DRAW_HOVER: {
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if (hover.is_null()) {
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if (pressed.is_valid() && is_pressed()) {
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texdraw = pressed;
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} else if (normal.is_valid()) {
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texdraw = normal;
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}
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} else {
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texdraw = hover;
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}
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} break;
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case DRAW_DISABLED: {
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if (disabled.is_null()) {
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if (normal.is_valid()) {
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texdraw = normal;
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}
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} else {
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texdraw = disabled;
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}
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} break;
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}
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Point2 ofs;
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Size2 size;
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bool draw_focus = (has_focus() && focused.is_valid());
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// If no other texture is valid, try using focused texture.
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bool draw_focus_only = draw_focus && !texdraw.is_valid();
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if (draw_focus_only) {
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texdraw = focused;
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}
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if (texdraw.is_valid()) {
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size = texdraw->get_size();
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_texture_region = Rect2(Point2(), texdraw->get_size());
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_tile = false;
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switch (stretch_mode) {
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case STRETCH_KEEP:
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size = texdraw->get_size();
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break;
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case STRETCH_SCALE:
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size = get_size();
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break;
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case STRETCH_TILE:
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size = get_size();
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_tile = true;
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break;
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case STRETCH_KEEP_CENTERED:
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ofs = (get_size() - texdraw->get_size()) / 2;
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size = texdraw->get_size();
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break;
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case STRETCH_KEEP_ASPECT_CENTERED:
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case STRETCH_KEEP_ASPECT: {
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Size2 _size = get_size();
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float tex_width = texdraw->get_width() * _size.height / texdraw->get_height();
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float tex_height = _size.height;
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if (tex_width > _size.width) {
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tex_width = _size.width;
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tex_height = texdraw->get_height() * tex_width / texdraw->get_width();
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}
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if (stretch_mode == STRETCH_KEEP_ASPECT_CENTERED) {
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ofs.x = (_size.width - tex_width) / 2;
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ofs.y = (_size.height - tex_height) / 2;
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}
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size.width = tex_width;
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size.height = tex_height;
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} break;
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case STRETCH_KEEP_ASPECT_COVERED: {
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size = get_size();
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Size2 tex_size = texdraw->get_size();
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Size2 scale_size(size.width / tex_size.width, size.height / tex_size.height);
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float scale = scale_size.width > scale_size.height ? scale_size.width : scale_size.height;
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Size2 scaled_tex_size = tex_size * scale;
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Point2 ofs2 = ((scaled_tex_size - size) / scale).abs() / 2.0f;
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_texture_region = Rect2(ofs2, size / scale);
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} break;
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}
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_position_rect = Rect2(ofs, size);
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size.width *= hflip ? -1.0f : 1.0f;
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size.height *= vflip ? -1.0f : 1.0f;
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if (draw_focus_only) {
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// Do nothing, we only needed to calculate the rectangle.
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} else if (_tile) {
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draw_texture_rect(texdraw, Rect2(ofs, size), _tile);
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} else {
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draw_texture_rect_region(texdraw, Rect2(ofs, size), _texture_region);
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}
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} else {
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_position_rect = Rect2();
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}
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if (draw_focus) {
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draw_texture_rect(focused, Rect2(ofs, size), false);
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};
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} break;
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}
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}
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void TextureButton::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_texture_normal", "texture"), &TextureButton::set_texture_normal);
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ClassDB::bind_method(D_METHOD("set_texture_pressed", "texture"), &TextureButton::set_texture_pressed);
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ClassDB::bind_method(D_METHOD("set_texture_hover", "texture"), &TextureButton::set_texture_hover);
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ClassDB::bind_method(D_METHOD("set_texture_disabled", "texture"), &TextureButton::set_texture_disabled);
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ClassDB::bind_method(D_METHOD("set_texture_focused", "texture"), &TextureButton::set_texture_focused);
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ClassDB::bind_method(D_METHOD("set_click_mask", "mask"), &TextureButton::set_click_mask);
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ClassDB::bind_method(D_METHOD("set_ignore_texture_size", "ignore"), &TextureButton::set_ignore_texture_size);
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ClassDB::bind_method(D_METHOD("set_stretch_mode", "mode"), &TextureButton::set_stretch_mode);
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ClassDB::bind_method(D_METHOD("set_flip_h", "enable"), &TextureButton::set_flip_h);
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ClassDB::bind_method(D_METHOD("is_flipped_h"), &TextureButton::is_flipped_h);
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ClassDB::bind_method(D_METHOD("set_flip_v", "enable"), &TextureButton::set_flip_v);
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ClassDB::bind_method(D_METHOD("is_flipped_v"), &TextureButton::is_flipped_v);
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ClassDB::bind_method(D_METHOD("get_texture_normal"), &TextureButton::get_texture_normal);
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ClassDB::bind_method(D_METHOD("get_texture_pressed"), &TextureButton::get_texture_pressed);
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ClassDB::bind_method(D_METHOD("get_texture_hover"), &TextureButton::get_texture_hover);
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ClassDB::bind_method(D_METHOD("get_texture_disabled"), &TextureButton::get_texture_disabled);
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ClassDB::bind_method(D_METHOD("get_texture_focused"), &TextureButton::get_texture_focused);
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ClassDB::bind_method(D_METHOD("get_click_mask"), &TextureButton::get_click_mask);
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ClassDB::bind_method(D_METHOD("get_ignore_texture_size"), &TextureButton::get_ignore_texture_size);
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ClassDB::bind_method(D_METHOD("get_stretch_mode"), &TextureButton::get_stretch_mode);
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ADD_GROUP("Textures", "texture_");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_normal", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture_normal", "get_texture_normal");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_pressed", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture_pressed", "get_texture_pressed");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_hover", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture_hover", "get_texture_hover");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_disabled", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture_disabled", "get_texture_disabled");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_focused", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture_focused", "get_texture_focused");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture_click_mask", PROPERTY_HINT_RESOURCE_TYPE, "BitMap"), "set_click_mask", "get_click_mask");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ignore_texture_size", PROPERTY_HINT_RESOURCE_TYPE, "bool"), "set_ignore_texture_size", "get_ignore_texture_size");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "stretch_mode", PROPERTY_HINT_ENUM, "Scale,Tile,Keep,Keep Centered,Keep Aspect,Keep Aspect Centered,Keep Aspect Covered"), "set_stretch_mode", "get_stretch_mode");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_h", PROPERTY_HINT_RESOURCE_TYPE, "bool"), "set_flip_h", "is_flipped_h");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_v", PROPERTY_HINT_RESOURCE_TYPE, "bool"), "set_flip_v", "is_flipped_v");
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BIND_ENUM_CONSTANT(STRETCH_SCALE);
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BIND_ENUM_CONSTANT(STRETCH_TILE);
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BIND_ENUM_CONSTANT(STRETCH_KEEP);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_CENTERED);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT_CENTERED);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT_COVERED);
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}
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void TextureButton::set_texture_normal(const Ref<Texture2D> &p_normal) {
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_set_texture(&normal, p_normal);
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}
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void TextureButton::set_texture_pressed(const Ref<Texture2D> &p_pressed) {
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_set_texture(&pressed, p_pressed);
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}
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void TextureButton::set_texture_hover(const Ref<Texture2D> &p_hover) {
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_set_texture(&hover, p_hover);
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}
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void TextureButton::set_texture_disabled(const Ref<Texture2D> &p_disabled) {
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_set_texture(&disabled, p_disabled);
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}
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void TextureButton::set_click_mask(const Ref<BitMap> &p_click_mask) {
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if (click_mask == p_click_mask) {
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return;
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}
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click_mask = p_click_mask;
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_texture_changed();
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}
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Ref<Texture2D> TextureButton::get_texture_normal() const {
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return normal;
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}
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Ref<Texture2D> TextureButton::get_texture_pressed() const {
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return pressed;
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}
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Ref<Texture2D> TextureButton::get_texture_hover() const {
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return hover;
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}
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Ref<Texture2D> TextureButton::get_texture_disabled() const {
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return disabled;
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}
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Ref<BitMap> TextureButton::get_click_mask() const {
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return click_mask;
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}
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Ref<Texture2D> TextureButton::get_texture_focused() const {
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return focused;
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};
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void TextureButton::set_texture_focused(const Ref<Texture2D> &p_focused) {
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focused = p_focused;
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};
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void TextureButton::_set_texture(Ref<Texture2D> *p_destination, const Ref<Texture2D> &p_texture) {
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DEV_ASSERT(p_destination);
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Ref<Texture2D> &destination = *p_destination;
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if (destination == p_texture) {
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return;
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}
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if (destination.is_valid()) {
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destination->disconnect_changed(callable_mp(this, &TextureButton::_texture_changed));
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}
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destination = p_texture;
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if (destination.is_valid()) {
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// Pass `CONNECT_REFERENCE_COUNTED` to avoid early disconnect in case the same texture is assigned to different "slots".
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destination->connect_changed(callable_mp(this, &TextureButton::_texture_changed), CONNECT_REFERENCE_COUNTED);
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}
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_texture_changed();
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}
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void TextureButton::_texture_changed() {
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queue_redraw();
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update_minimum_size();
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}
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bool TextureButton::get_ignore_texture_size() const {
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return ignore_texture_size;
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}
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void TextureButton::set_ignore_texture_size(bool p_ignore) {
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if (ignore_texture_size == p_ignore) {
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return;
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}
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ignore_texture_size = p_ignore;
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update_minimum_size();
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queue_redraw();
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}
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void TextureButton::set_stretch_mode(StretchMode p_stretch_mode) {
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if (stretch_mode == p_stretch_mode) {
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return;
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}
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stretch_mode = p_stretch_mode;
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queue_redraw();
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}
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TextureButton::StretchMode TextureButton::get_stretch_mode() const {
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return stretch_mode;
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}
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void TextureButton::set_flip_h(bool p_flip) {
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if (hflip == p_flip) {
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return;
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}
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hflip = p_flip;
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queue_redraw();
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}
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bool TextureButton::is_flipped_h() const {
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return hflip;
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}
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void TextureButton::set_flip_v(bool p_flip) {
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if (vflip == p_flip) {
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return;
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}
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vflip = p_flip;
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queue_redraw();
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}
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bool TextureButton::is_flipped_v() const {
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return vflip;
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}
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TextureButton::TextureButton() {}
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