Fri, 09 Feb 2024 16:50:23 +0100
implement resource deletion
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
1 | /* |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
3 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
4 | * Copyright 2017 Olaf Wintermann. All rights reserved. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
5 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
6 | * Redistribution and use in source and binary forms, with or without |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
7 | * modification, are permitted provided that the following conditions are met: |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
8 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
9 | * 1. Redistributions of source code must retain the above copyright |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
10 | * notice, this list of conditions and the following disclaimer. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
11 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
12 | * 2. Redistributions in binary form must reproduce the above copyright |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
13 | * notice, this list of conditions and the following disclaimer in the |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
14 | * documentation and/or other materials provided with the distribution. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
15 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
26 | * POSSIBILITY OF SUCH DAMAGE. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
27 | */ |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
28 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
29 | #include <stdio.h> |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
30 | #include <stdlib.h> |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
31 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
32 | #include "container.h" |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
33 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
34 | #include "draw_cairo.h" |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
35 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
36 | #ifdef UI_GTK3 |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
37 | gboolean ui_drawingarea_expose(GtkWidget *w, cairo_t *cr, void *data) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
38 | UiCairoGraphics g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
39 | g.g.width = gtk_widget_get_allocated_width(w); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
40 | g.g.height = gtk_widget_get_allocated_height(w); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
41 | g.widget = w; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
42 | g.cr = cr; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
43 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
44 | UiDrawEvent *event = data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
45 | UiEvent ev; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
46 | ev.obj = event->obj; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
47 | ev.window = event->obj->window; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
48 | ev.document = event->obj->ctx->document; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
49 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
50 | event->callback(&ev, &g.g, event->userdata); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
51 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
52 | return FALSE; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
53 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
54 | #else |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
55 | gboolean ui_canvas_expose(GtkWidget *w, GdkEventExpose *e, void *data) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
56 | UiCairoGraphics g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
57 | g.g.width = w->allocation.width; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
58 | g.g.height = w->allocation.height; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
59 | g.widget = w; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
60 | g.cr = gdk_cairo_create(w->window); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
61 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
62 | UiDrawEvent *event = data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
63 | UiEvent ev; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
64 | ev.obj = event->obj; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
65 | ev.window = event->obj->window; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
66 | ev.document = event->obj->ctx->document; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
67 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
68 | event->callback(&ev, &g.g, event->userdata); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
69 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
70 | return FALSE; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
71 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
72 | #endif |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
73 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
74 | // function from graphics.h |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
75 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
76 | void ui_connect_draw_handler(GtkWidget *widget, UiDrawEvent *event) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
77 | #ifdef UI_GTK3 |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
78 | g_signal_connect(G_OBJECT(widget), |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
79 | "draw", |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
80 | G_CALLBACK(ui_drawingarea_expose), |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
81 | event); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
82 | #else |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
83 | g_signal_connect(G_OBJECT(widget), |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
84 | "expose_event", |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
85 | G_CALLBACK(ui_canvas_expose), |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
86 | event); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
87 | #endif |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
88 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
89 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
90 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
91 | PangoContext *ui_get_pango_context(UiGraphics *g) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
92 | UiCairoGraphics *gr = (UiCairoGraphics*)g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
93 | //return gtk_widget_get_pango_context(gr->widget); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
94 | return pango_cairo_create_context(gr->cr); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
95 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
96 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
97 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
98 | // drawing functions |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
99 | void ui_graphics_color(UiGraphics *g, int red, int green, int blue) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
100 | UiCairoGraphics *gr = (UiCairoGraphics*)g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
101 | double dred = (double)red / (double)255; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
102 | double dgreen = (double)green / (double)255; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
103 | double dblue = (double)blue / (double)255; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
104 | cairo_set_source_rgb(gr->cr, dred, dgreen, dblue); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
105 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
106 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
107 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
108 | void ui_draw_line(UiGraphics *g, int x1, int y1, int x2, int y2) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
109 | UiCairoGraphics *gr = (UiCairoGraphics*)g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
110 | cairo_set_line_width(gr->cr, 1); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
111 | cairo_move_to(gr->cr, (double)x1 + 0.5, (double)y1 + 0.5); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
112 | cairo_line_to(gr->cr, (double)x2 + 0.5, (double)y2 + 0.5); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
113 | cairo_stroke(gr->cr); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
114 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
115 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
116 | void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
117 | UiCairoGraphics *gr = (UiCairoGraphics*)g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
118 | cairo_set_line_width(gr->cr, 1); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
119 | cairo_rectangle(gr->cr, x + 0.5, y + 0.5 , w, h); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
120 | if(fill) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
121 | cairo_fill(gr->cr); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
122 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
123 | cairo_stroke(gr->cr); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
124 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
125 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
126 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
127 | void ui_draw_text(UiGraphics *g, int x, int y, UiTextLayout *text) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
128 | UiCairoGraphics *gr = (UiCairoGraphics*)g; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
129 | cairo_move_to(gr->cr, x, y); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
130 | pango_cairo_show_layout(gr->cr, text->layout); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
131 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
132 |