Makefile- button.c
- button.h
- container.c
- container.h
- display.c
- display.h
- dnd.c
- dnd.h
- draw_cairo.c
- draw_cairo.h
- draw_gdk.c
- draw_gdk.h
- entry.c
- entry.h
- graphics.c
- graphics.h
- image.c
- image.h
- menu.c
- menu.h
- model.c
- model.h
- objs.mk
- range.c
- range.h
- text.c
- text.h
- toolbar.c
- toolbar.h
- toolkit.c
- toolkit.h
- tree.c
- tree.h
- window.c
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2017 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <stdio.h>
30 #include <stdlib.h>
31
32 #include "container.h"
33
34 #include "draw_cairo.h"
35
36 #ifdef UI_GTK3
37 gboolean ui_drawingarea_expose(GtkWidget *w, cairo_t *cr, void *data) {
38 UiCairoGraphics g;
39 g.g.width = gtk_widget_get_allocated_width(w);
40 g.g.height = gtk_widget_get_allocated_height(w);
41 g.widget = w;
42 g.cr = cr;
43
44 UiDrawEvent *event = data;
45 UiEvent ev;
46 ev.obj = event->obj;
47 ev.window = event->obj->window;
48 ev.document = event->obj->ctx->document;
49
50 event->callback(&ev, &g.g, event->userdata);
51
52 return FALSE;
53 }
54 #else
55 gboolean ui_canvas_expose(GtkWidget *w, GdkEventExpose *e, void *data) {
56 UiCairoGraphics g;
57 g.g.width = w->allocation.width;
58 g.g.height = w->allocation.height;
59 g.widget = w;
60 g.cr = gdk_cairo_create(w->window);
61
62 UiDrawEvent *event = data;
63 UiEvent ev;
64 ev.obj = event->obj;
65 ev.window = event->obj->window;
66 ev.document = event->obj->ctx->document;
67
68 event->callback(&ev, &g.g, event->userdata);
69
70 return FALSE;
71 }
72 #endif
73
74 // function from graphics.h
75
76 void ui_connect_draw_handler(GtkWidget *widget, UiDrawEvent *event) {
77 #ifdef UI_GTK3
78 g_signal_connect(G_OBJECT(widget),
79 "draw",
80 G_CALLBACK(ui_drawingarea_expose),
81 event);
82 #else
83 g_signal_connect(G_OBJECT(widget),
84 "expose_event",
85 G_CALLBACK(ui_canvas_expose),
86 event);
87 #endif
88 }
89
90
91 PangoContext *ui_get_pango_context(UiGraphics *g) {
92 UiCairoGraphics *gr = (UiCairoGraphics*)g;
93 //return gtk_widget_get_pango_context(gr->widget);
94 return pango_cairo_create_context(gr->cr);
95 }
96
97
98 // drawing functions
99 void ui_graphics_color(UiGraphics *g, int red, int green, int blue) {
100 UiCairoGraphics *gr = (UiCairoGraphics*)g;
101 double dred = (double)red / (double)255;
102 double dgreen = (double)green / (double)255;
103 double dblue = (double)blue / (double)255;
104 cairo_set_source_rgb(gr->cr, dred, dgreen, dblue);
105 }
106
107
108 void ui_draw_line(UiGraphics *g, int x1, int y1, int x2, int y2) {
109 UiCairoGraphics *gr = (UiCairoGraphics*)g;
110 cairo_set_line_width(gr->cr, 1);
111 cairo_move_to(gr->cr, (double)x1 + 0.5, (double)y1 + 0.5);
112 cairo_line_to(gr->cr, (double)x2 + 0.5, (double)y2 + 0.5);
113 cairo_stroke(gr->cr);
114 }
115
116 void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) {
117 UiCairoGraphics *gr = (UiCairoGraphics*)g;
118 cairo_set_line_width(gr->cr, 1);
119 cairo_rectangle(gr->cr, x + 0.5, y + 0.5 , w, h);
120 if(fill) {
121 cairo_fill(gr->cr);
122 } else {
123 cairo_stroke(gr->cr);
124 }
125 }
126
127 void ui_draw_text(UiGraphics *g, int x, int y, UiTextLayout *text) {
128 UiCairoGraphics *gr = (UiCairoGraphics*)g;
129 cairo_move_to(gr->cr, x, y);
130 pango_cairo_show_layout(gr->cr, text->layout);
131 }
132
133