ui/qt/graphics.cpp

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1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2015 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 "graphics.h"
30 #include "container.h"
31
32
33 DrawingArea::DrawingArea(UiObject *obj, ui_drawfunc cb, void *data) {
34 object = obj;
35 drawCallback = cb;
36 userdata = data;
37 }
38
39 DrawingArea::~DrawingArea() {
40
41 }
42
43 void DrawingArea::paintEvent(QPaintEvent *event) {
44 QPainter painter(this);
45
46 UiQtGraphics g;
47 g.g.width = this->width();
48 g.g.height = this->height();
49 g.painter = &painter;
50
51 UiEvent ev;
52 ev.obj = object;
53 ev.window = object->window;
54 ev.document = object->ctx->document;
55 ev.eventdata = NULL;
56 ev.intval = 0;
57
58 drawCallback(&ev, &g.g, userdata);
59 }
60
61
62
63 UIWIDGET ui_drawingarea(UiObject *obj, ui_drawfunc f, void *userdata) {
64 DrawingArea *widget = new DrawingArea(obj, f, userdata);
65
66 UiContainer *ct = uic_get_current_container(obj);
67 ct->add(widget, true);
68
69 return widget;
70 }
71
72
73 /* -------------------- text layout functions -------------------- */
74
75 UiTextLayout* ui_text(UiGraphics *g) {
76 UiTextLayout *textlayout = new UiTextLayout();
77 return textlayout;
78 }
79
80 void ui_text_free(UiTextLayout *text) {
81 delete text;
82 }
83
84 void ui_text_setstring(UiTextLayout *layout, char *str) {
85 layout->text.setText(QString::fromUtf8(str));
86 }
87
88 void ui_text_setstringl(UiTextLayout *layout, char *str, int len) {
89 layout->text.setText(QString::fromUtf8(str, len));
90 }
91
92 void ui_text_setfont(UiTextLayout *layout, char *font, int size) {
93 layout->font = QFont(QString::fromUtf8(font), size);
94 }
95
96 void ui_text_getsize(UiTextLayout *layout, int *width, int *height) {
97 QSizeF size = layout->text.size();
98 *width = (int)size.width();
99 *height = (int)size.height();
100 }
101
102 void ui_text_setwidth(UiTextLayout *layout, int width) {
103 layout->text.setTextWidth((qreal)width);
104 }
105
106
107 /* -------------------- drawing functions -------------------- */
108
109 void ui_graphics_color(UiGraphics *g, int red, int green, int blue) {
110 UiQtGraphics *gr = (UiQtGraphics*)g;
111 gr->color = QColor(red, green, blue);
112 gr->painter->setPen(gr->color);
113 }
114
115 void ui_draw_rect(UiGraphics *g, int x, int y, int w, int h, int fill) {
116 UiQtGraphics *gr = (UiQtGraphics*)g;
117
118 QRect rect(x, y, w, h);
119 if(fill) {
120 gr->painter->fillRect(rect, gr->color);
121
122 } else {
123 gr->painter->drawRect(rect);
124 }
125 }
126
127 void ui_draw_text(UiGraphics *g, int x, int y, UiTextLayout *text) {
128 UiQtGraphics *gr = (UiQtGraphics*)g;
129
130 gr->painter->setFont(text->font);
131 gr->painter->drawStaticText(x, y, text->text);
132 }
133

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