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annotate src/ui.cc @ 7:a3c4fcc9f8f3

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- started a goatkit UI theme - font rendering with drawtext and shaders - asset manager (only used by drawtext for now, will replace respath eventually)
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 24 Sep 2015 06:49:25 +0300
parents 3bccfc7d10fe
children 64e15874f3bd
rev   line source
nuclear@7 1 #include <stdio.h>
nuclear@6 2 #include "ui.h"
nuclear@6 3 #include "goatkit/goatkit.h"
nuclear@6 4 #include "opengl.h"
nuclear@6 5 #include "sdr.h"
nuclear@6 6
nuclear@6 7 static goatkit::Screen scr;
nuclear@6 8 static int width, height;
nuclear@6 9
nuclear@6 10 extern unsigned int prog_color, prog_ui;
nuclear@6 11
nuclear@6 12 int ui_init(void)
nuclear@6 13 {
nuclear@6 14 float ypos = 0;
nuclear@6 15 float vsep = 0.1;
nuclear@6 16
nuclear@6 17 goatkit::Label *label = new goatkit::Label;
nuclear@6 18 label->set_position(0.5, ypos += vsep);
nuclear@6 19 label->set_size(0.1, 0.1);
nuclear@6 20 label->set_text("Stereoscopic rendering");
nuclear@6 21 scr.add_widget(label);
nuclear@6 22
nuclear@6 23 /*
nuclear@6 24 goatkit::Button *button = new goatkit::Button;
nuclear@6 25 button->set_position(300, ypos += vsep);
nuclear@6 26 button->set_size(200, 40);
nuclear@6 27 button->set_text("a button!");
nuclear@6 28 button->set_callback(goatkit::EV_CLICK, callback);
nuclear@6 29 scr.add_widget(button);
nuclear@6 30
nuclear@6 31 goatkit::TextBox *text = new goatkit::TextBox;
nuclear@6 32 text->set_position(300, ypos += vsep);
nuclear@6 33 text->set_size(200, 30);
nuclear@6 34 text->set_text("foo");
nuclear@6 35 text->set_callback(goatkit::EV_CHANGE, callback);
nuclear@6 36 scr.add_widget(text);
nuclear@6 37
nuclear@6 38 goatkit::CheckBox *cbox = new goatkit::CheckBox;
nuclear@6 39 cbox->set_position(300, ypos += vsep);
nuclear@6 40 cbox->set_size(200, 20);
nuclear@6 41 cbox->set_text("a checkbox!");
nuclear@6 42 cbox->set_callback(goatkit::EV_CHANGE, callback);
nuclear@6 43 scr.add_widget(cbox);
nuclear@6 44
nuclear@6 45 goatkit::Slider *slider = new goatkit::Slider;
nuclear@6 46 slider->set_position(300, ypos += vsep);
nuclear@6 47 slider->set_size(200, 40);
nuclear@6 48 slider->set_callback(goatkit::EV_CHANGE, callback);
nuclear@6 49 slider->set_continuous_change(false);
nuclear@6 50 slider->set_range(0, 100.0);
nuclear@6 51 scr.add_widget(slider);
nuclear@6 52
nuclear@6 53 goatkit::Slider *intslider = new goatkit::Slider;
nuclear@6 54 intslider->set_position(300, ypos += vsep);
nuclear@6 55 intslider->set_size(200, 40);
nuclear@6 56 intslider->set_callback(goatkit::EV_CHANGE, callback);
nuclear@6 57 intslider->set_continuous_change(false);
nuclear@6 58 intslider->set_range(0, 100.0);
nuclear@6 59 intslider->set_step(10);
nuclear@6 60 scr.add_widget(intslider);
nuclear@6 61 */
nuclear@6 62
nuclear@6 63 scr.show();
nuclear@6 64
nuclear@6 65 // load the theme
nuclear@6 66 //goatkit::add_theme_path("themes/simple");
nuclear@6 67
nuclear@7 68 goatkit::theme = new goatkit::Theme;
nuclear@7 69 if(!goatkit::theme->load(GOATKIT_THEME_BUILTIN)) {
nuclear@7 70 fprintf(stderr, "no builitn theme\n");
nuclear@7 71 return -1;
nuclear@7 72 }
nuclear@6 73
nuclear@6 74 return 0;
nuclear@6 75 }
nuclear@6 76
nuclear@6 77 void ui_shutdown(void)
nuclear@6 78 {
nuclear@6 79 }
nuclear@6 80
nuclear@6 81 void ui_reshape(int x, int y)
nuclear@6 82 {
nuclear@6 83 width = x;
nuclear@6 84 height = y;
nuclear@6 85 }
nuclear@6 86
nuclear@6 87 void ui_draw(void)
nuclear@6 88 {
nuclear@6 89 float aspect = (float)width / (float)height;
nuclear@6 90
nuclear@6 91 bind_program(prog_ui);
nuclear@6 92
nuclear@6 93 gl_matrix_mode(GL_PROJECTION);
nuclear@6 94 gl_push_matrix();
nuclear@6 95 gl_load_identity();
nuclear@6 96 gl_scalef(2.0 / aspect, 2.0, 1);
nuclear@6 97 gl_translatef(-1, -1, 0);
nuclear@6 98 gl_matrix_mode(GL_MODELVIEW);
nuclear@6 99 gl_push_matrix();
nuclear@6 100 gl_load_identity();
nuclear@6 101
nuclear@6 102 glDisable(GL_CULL_FACE);
nuclear@6 103 glDisable(GL_DEPTH_TEST);
nuclear@7 104 glEnable(GL_BLEND);
nuclear@7 105 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
nuclear@6 106
nuclear@7 107 set_uniform_float4(prog_ui, "ucolor", 0, 0, 0, 0.5);
nuclear@7 108
nuclear@7 109 gl_begin(GL_QUADS);
nuclear@7 110 //gl_color4f(0, 0, 0, 0.5);
nuclear@6 111 gl_vertex3f(0, 0, 0);
nuclear@7 112 gl_vertex3f(0, 1.0, 0);
nuclear@7 113 gl_vertex3f(1.0 * aspect, 1.0, 0);
nuclear@7 114 gl_vertex3f(1.0 * aspect, 0, 0);
nuclear@6 115 gl_end();
nuclear@6 116
nuclear@6 117 scr.draw();
nuclear@6 118
nuclear@7 119 glDisable(GL_BLEND);
nuclear@6 120 glEnable(GL_CULL_FACE);
nuclear@6 121 glEnable(GL_DEPTH_TEST);
nuclear@6 122
nuclear@6 123
nuclear@6 124 gl_matrix_mode(GL_PROJECTION);
nuclear@6 125 gl_pop_matrix();
nuclear@6 126 gl_matrix_mode(GL_MODELVIEW);
nuclear@6 127 gl_pop_matrix();
nuclear@6 128 }
nuclear@6 129
nuclear@6 130 void ui_button(int bn, int press, int x, int y)
nuclear@6 131 {
nuclear@7 132 scr.sysev_mouse_button(bn, press != 0, (float)x / (float)width, (float)y / (float)height);
nuclear@6 133 }
nuclear@6 134
nuclear@6 135 void ui_motion(int x, int y)
nuclear@6 136 {
nuclear@7 137 scr.sysev_mouse_motion((float)x / (float)width, (float)y / (float)height);
nuclear@6 138 }