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248 lines
8 KiB
C++
248 lines
8 KiB
C++
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/*************************************************************************/
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/* slider.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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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 "slider.h"
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#include "os/keyboard.h"
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Size2 Slider::get_minimum_size() const {
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Ref<StyleBox> style = get_stylebox("slider");
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Size2i ms = style->get_minimum_size()+style->get_center_size();
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return ms;
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}
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void Slider::_input_event(InputEvent p_event) {
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if (p_event.type==InputEvent::MOUSE_BUTTON) {
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InputEventMouseButton &mb = p_event.mouse_button;
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if (mb.button_index==BUTTON_LEFT) {
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if (mb.pressed) {
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grab.pos=orientation==VERTICAL?mb.y:mb.x;
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double max = orientation==VERTICAL ? get_size().height : get_size().width ;
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set_val( ( ( (double)grab.pos / max) * ( get_max() - get_min() ) ) + get_min() );
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grab.active=true;
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grab.uvalue=get_unit_value();
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} else {
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grab.active=false;
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}
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} else if (mb.pressed && mb.button_index==BUTTON_WHEEL_UP) {
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set_val( get_val() + get_step());
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} else if (mb.pressed && mb.button_index==BUTTON_WHEEL_DOWN) {
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set_val( get_val() - get_step());
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}
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} else if (p_event.type==InputEvent::MOUSE_MOTION) {
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if (grab.active) {
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Size2i size = get_size();
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Ref<Texture> grabber = get_icon("grabber");
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float motion = (orientation==VERTICAL?p_event.mouse_motion.y:p_event.mouse_motion.x) - grab.pos;
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if (orientation==VERTICAL)
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motion=-motion;
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float areasize = orientation==VERTICAL?size.height - grabber->get_size().height:size.width - grabber->get_size().width;
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if (areasize<=0)
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return;
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float umotion = motion / float(areasize);
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set_unit_value( grab.uvalue + umotion );
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}
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} else {
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if (p_event.is_action("ui_left") && p_event.is_pressed()) {
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if (orientation!=HORIZONTAL)
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return;
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set_val( get_val() - (custom_step>=0?custom_step:get_step()) );
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accept_event();
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} else if (p_event.is_action("ui_right") && p_event.is_pressed()) {
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if (orientation!=HORIZONTAL)
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return;
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set_val( get_val() + (custom_step>=0?custom_step:get_step()) );
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accept_event();
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} else if (p_event.is_action("ui_up") && p_event.is_pressed()) {
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if (orientation!=VERTICAL)
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return;
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set_val( get_val() + (custom_step>=0?custom_step:get_step()) );
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accept_event();
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} else if (p_event.is_action("ui_down") && p_event.is_pressed()) {
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if (orientation!=VERTICAL)
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return;
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set_val( get_val() - (custom_step>=0?custom_step:get_step()) );
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accept_event();
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} else if (p_event.type==InputEvent::KEY) {
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const InputEventKey &k=p_event.key;
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if (!k.pressed)
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return;
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switch (k.scancode) {
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case KEY_HOME: {
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set_val( get_min() );
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accept_event();
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} break;
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case KEY_END: {
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set_val( get_max() );
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accept_event();
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} break;
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} ;
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}
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}
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}
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void Slider::_notification(int p_what) {
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switch(p_what) {
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case NOTIFICATION_MOUSE_ENTER: {
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mouse_inside=true;
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update();
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} break;
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case NOTIFICATION_MOUSE_EXIT: {
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mouse_inside=false;
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update();
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} break;
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case NOTIFICATION_DRAW: {
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RID ci = get_canvas_item();
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Size2i size = get_size();
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Ref<StyleBox> style = get_stylebox("slider");
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Ref<StyleBox> focus = get_stylebox("focus");
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Ref<Texture> grabber = get_icon(mouse_inside||has_focus()?"grabber_hilite":"grabber");
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Ref<Texture> tick = get_icon("tick");
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if (orientation==VERTICAL) {
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style->draw(ci,Rect2i(Point2i(),Size2i(style->get_minimum_size().width+style->get_center_size().width,size.height)));
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//if (mouse_inside||has_focus())
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// focus->draw(ci,Rect2i(Point2i(),Size2i(style->get_minimum_size().width+style->get_center_size().width,size.height)));
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float areasize = size.height - grabber->get_size().height;
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if (ticks>1) {
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int tickarea = size.height - tick->get_height();
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for(int i=0;i<ticks;i++) {
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if( ! ticks_on_borders && (i == 0 || i + 1 == ticks) ) continue;
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int ofs = i*tickarea/(ticks-1);
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tick->draw(ci,Point2(0,ofs));
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}
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}
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grabber->draw(ci,Point2i(size.width/2-grabber->get_size().width/2,size.height - get_unit_value()*areasize - grabber->get_size().height));
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} else {
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style->draw(ci,Rect2i(Point2i(),Size2i(size.width,style->get_minimum_size().height+style->get_center_size().height)));
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//if (mouse_inside||has_focus())
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// focus->draw(ci,Rect2i(Point2i(),Size2i(size.width,style->get_minimum_size().height+style->get_center_size().height)));
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float areasize = size.width - grabber->get_size().width;
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if (ticks>1) {
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int tickarea = size.width - tick->get_width();
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for(int i=0;i<ticks;i++) {
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if( (! ticks_on_borders) && ( (i == 0) || ((i + 1) == ticks)) ) continue;
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int ofs = i*tickarea/(ticks-1);
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tick->draw(ci,Point2(ofs,0));
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}
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}
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grabber->draw(ci,Point2i(get_unit_value()*areasize,size.height/2-grabber->get_size().height/2));
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}
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} break;
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}
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}
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void Slider::set_custom_step(float p_custom_step) {
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custom_step=p_custom_step;
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}
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float Slider::get_custom_step() const {
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return custom_step;
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}
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void Slider::set_ticks(int p_count) {
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ticks=p_count;
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update();
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}
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int Slider::get_ticks() const {
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return ticks;
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}
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bool Slider::get_ticks_on_borders() const{
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return ticks_on_borders;
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}
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void Slider::set_ticks_on_borders(bool _tob){
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ticks_on_borders = _tob;
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update();
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}
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void Slider::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("_input_event"),&Slider::_input_event);
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ObjectTypeDB::bind_method(_MD("set_ticks","count"),&Slider::set_ticks);
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ObjectTypeDB::bind_method(_MD("get_ticks"),&Slider::get_ticks);
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ObjectTypeDB::bind_method(_MD("get_ticks_on_borders"),&Slider::get_ticks_on_borders);
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ObjectTypeDB::bind_method(_MD("set_ticks_on_borders","ticks_on_border"),&Slider::set_ticks_on_borders);
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ADD_PROPERTY( PropertyInfo( Variant::INT, "tick_count", PROPERTY_HINT_RANGE,"0,4096,1"), _SCS("set_ticks"), _SCS("get_ticks") );
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ADD_PROPERTY( PropertyInfo( Variant::BOOL, "ticks_on_borders" ), _SCS("set_ticks_on_borders"), _SCS("get_ticks_on_borders") );
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}
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Slider::Slider(Orientation p_orientation) {
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orientation=p_orientation;
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mouse_inside=false;
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grab.active=false;
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ticks=0;
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custom_step=-1;
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set_focus_mode(FOCUS_ALL);
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}
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