1 /* 2 * Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/> 3 * (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com> 4 * 5 * This file is part of lsp-plugins 6 * Created on: 8 окт. 2017 г. 7 * 8 * lsp-plugins is free software: you can redistribute it and/or modify 9 * it under the terms of the GNU Lesser General Public License as published by 10 * the Free Software Foundation, either version 3 of the License, or 11 * any later version. 12 * 13 * lsp-plugins is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public License 19 * along with lsp-plugins. If not, see <https://www.gnu.org/licenses/>. 20 */ 21 22 #ifndef UI_TK_UTIL_LSPSIZECONSTRAINTS_H_ 23 #define UI_TK_UTIL_LSPSIZECONSTRAINTS_H_ 24 25 namespace lsp 26 { 27 namespace tk 28 { 29 class LSPWidget; 30 31 class LSPSizeConstraints 32 { 33 protected: 34 size_request_t sSize; 35 LSPWidget *pWidget; 36 37 public: 38 LSPSizeConstraints(LSPWidget *w); 39 virtual ~LSPSizeConstraints(); 40 41 public: min_width()42 inline ssize_t min_width() const { return sSize.nMinWidth; } min_height()43 inline ssize_t min_height() const { return sSize.nMinHeight; } 44 ssize_t max_width() const; 45 ssize_t max_height() const; 46 47 /** Get size constraints. It is guaranteed that in case when 48 * both minimum and maximum range values are defined, maximum value 49 * will be always not less than minimum value. Minimum value has 50 * priority over the maximum value, so if maximum value is less than 51 * minimum, it will be returned being equal to a minimum value 52 * 53 * @param dst destination parameter to return value 54 */ 55 void get(size_request_t *dst) const; 56 57 public: 58 void set_min_width(ssize_t value); 59 void set_min_height(ssize_t value); 60 void set_max_width(ssize_t value); 61 void set_max_height(ssize_t value); 62 63 void set_width(ssize_t min, ssize_t max); 64 void set_height(ssize_t min, ssize_t max); 65 void set_min(ssize_t min_width, ssize_t min_height); 66 void set_max(ssize_t max_width, ssize_t max_height); 67 68 void set(ssize_t min_width, ssize_t min_height, ssize_t max_width, ssize_t max_height); 69 void set(const size_request_t *sr); 70 71 void apply(size_request_t *sr) const; 72 }; 73 74 } /* namespace tk */ 75 } /* namespace lsp */ 76 77 #endif /* UI_TK_UTIL_LSPSIZECONSTRAINTS_H_ */ 78