[ui, textbox] position cursor at mouse position / extend selection on shift + mouse press or drag
This commit is contained in:
parent
e95efe85e8
commit
4359bdaa3c
|
|
@ -0,0 +1,4 @@
|
|||
|
||||
set INCLUDES=/I ..\..\src /I ..\..\src\util /I ..\..\src\platform /I ../../ext /I ../../ext/angle_headers
|
||||
|
||||
cl /we4013 /Zi /Zc:preprocessor /std:c11 %INCLUDES% main.c /link /LIBPATH:../../bin milepost.dll.lib /out:../../bin/example_ui.exe
|
||||
|
|
@ -0,0 +1,11 @@
|
|||
#!/bin/bash
|
||||
|
||||
BINDIR=../../bin
|
||||
RESDIR=../../resources
|
||||
SRCDIR=../../src
|
||||
|
||||
INCLUDES="-I$SRCDIR -I$SRCDIR/util -I$SRCDIR/platform -I$SRCDIR/app"
|
||||
LIBS="-L$BINDIR -lmilepost"
|
||||
FLAGS="-mmacos-version-min=10.15.4 -DDEBUG -DLOG_COMPILE_DEBUG"
|
||||
|
||||
clang -g $FLAGS $LIBS $INCLUDES -o $BINDIR/example_ui main.c
|
||||
|
|
@ -0,0 +1,199 @@
|
|||
/************************************************************//**
|
||||
*
|
||||
* @file: main.cpp
|
||||
* @author: Martin Fouilleul
|
||||
* @date: 30/07/2022
|
||||
* @revision:
|
||||
*
|
||||
*****************************************************************/
|
||||
#include<stdlib.h>
|
||||
#include<string.h>
|
||||
#include<errno.h>
|
||||
|
||||
#define _USE_MATH_DEFINES //NOTE: necessary for MSVC
|
||||
#include<math.h>
|
||||
|
||||
#include"milepost.h"
|
||||
|
||||
#define LOG_SUBSYSTEM "Main"
|
||||
|
||||
|
||||
mg_font create_font()
|
||||
{
|
||||
//NOTE(martin): create font
|
||||
str8 fontPath = mp_app_get_resource_path(mem_scratch(), "../resources/OpenSansLatinSubset.ttf");
|
||||
char* fontPathCString = str8_to_cstring(mem_scratch(), fontPath);
|
||||
|
||||
FILE* fontFile = fopen(fontPathCString, "r");
|
||||
if(!fontFile)
|
||||
{
|
||||
LOG_ERROR("Could not load font file '%s': %s\n", fontPathCString, strerror(errno));
|
||||
return(mg_font_nil());
|
||||
}
|
||||
unsigned char* fontData = 0;
|
||||
fseek(fontFile, 0, SEEK_END);
|
||||
u32 fontDataSize = ftell(fontFile);
|
||||
rewind(fontFile);
|
||||
fontData = (unsigned char*)malloc(fontDataSize);
|
||||
fread(fontData, 1, fontDataSize, fontFile);
|
||||
fclose(fontFile);
|
||||
|
||||
unicode_range ranges[5] = {UNICODE_RANGE_BASIC_LATIN,
|
||||
UNICODE_RANGE_C1_CONTROLS_AND_LATIN_1_SUPPLEMENT,
|
||||
UNICODE_RANGE_LATIN_EXTENDED_A,
|
||||
UNICODE_RANGE_LATIN_EXTENDED_B,
|
||||
UNICODE_RANGE_SPECIALS};
|
||||
|
||||
mg_font font = mg_font_create_from_memory(fontDataSize, fontData, 5, ranges);
|
||||
free(fontData);
|
||||
|
||||
return(font);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
LogLevel(LOG_LEVEL_WARNING);
|
||||
|
||||
mp_init();
|
||||
mp_clock_init(); //TODO put that in mp_init()?
|
||||
|
||||
ui_init();
|
||||
|
||||
mp_rect windowRect = {.x = 100, .y = 100, .w = 810, .h = 610};
|
||||
mp_window window = mp_window_create(windowRect, "test", 0);
|
||||
|
||||
mp_rect contentRect = mp_window_get_content_rect(window);
|
||||
|
||||
//NOTE: create surface
|
||||
mg_surface surface = mg_surface_create_for_window(window, MG_BACKEND_DEFAULT);
|
||||
mg_surface_swap_interval(surface, 0);
|
||||
|
||||
//TODO: create canvas
|
||||
mg_canvas canvas = mg_canvas_create(surface);
|
||||
|
||||
if(mg_canvas_is_nil(canvas))
|
||||
{
|
||||
printf("Error: couldn't create canvas\n");
|
||||
return(-1);
|
||||
}
|
||||
|
||||
mg_font font = create_font();
|
||||
|
||||
// start app
|
||||
mp_window_bring_to_front(window);
|
||||
mp_window_focus(window);
|
||||
|
||||
f32 x = 400, y = 300;
|
||||
f32 speed = 0;
|
||||
f32 dx = speed, dy = speed;
|
||||
f64 frameTime = 0;
|
||||
|
||||
mem_arena textArena = {0};
|
||||
mem_arena_init(&textArena);
|
||||
|
||||
while(!mp_should_quit())
|
||||
{
|
||||
f64 startTime = mp_get_time(MP_CLOCK_MONOTONIC);
|
||||
|
||||
mp_pump_events(0);
|
||||
mp_event event = {0};
|
||||
while(mp_next_event(&event))
|
||||
{
|
||||
switch(event.type)
|
||||
{
|
||||
case MP_EVENT_WINDOW_CLOSE:
|
||||
{
|
||||
mp_request_quit();
|
||||
} break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if(mp_key_pressed(MP_KEY_C))
|
||||
{
|
||||
printf("pressed C!\n");
|
||||
}
|
||||
|
||||
mg_surface_prepare(surface);
|
||||
|
||||
mp_rect frame = mp_window_get_content_rect(window);
|
||||
|
||||
ui_style defaultStyle = {.bgColor = {0.9, 0.9, 0.9, 1},
|
||||
.borderSize = 2,
|
||||
.borderColor = {0, 0, 1, 1},
|
||||
.fontColor = {0, 0, 0, 1},
|
||||
.font = font,
|
||||
.fontSize = 32};
|
||||
|
||||
ui_begin_frame(frame.w, frame.h, defaultStyle);
|
||||
{
|
||||
ui_push_size(UI_AXIS_X, UI_SIZE_CHILDREN, 10, 0);
|
||||
ui_push_size(UI_AXIS_Y, UI_SIZE_CHILDREN, 10, 0);
|
||||
ui_panel("buttons")
|
||||
{
|
||||
ui_push_size(UI_AXIS_X, UI_SIZE_TEXT, 5, 0);
|
||||
ui_push_size(UI_AXIS_Y, UI_SIZE_TEXT, 5, 0);
|
||||
if(ui_button("1: Click me!").clicked)
|
||||
{
|
||||
printf("Clicked button 1!\n");
|
||||
}
|
||||
if(ui_button("2: Click me!").clicked)
|
||||
{
|
||||
printf("Clicked button 2!\n");
|
||||
}
|
||||
ui_pop_size(UI_AXIS_X);
|
||||
ui_pop_size(UI_AXIS_Y);
|
||||
}
|
||||
|
||||
ui_panel("sliders")
|
||||
{
|
||||
static float scrollValue1 = 0.;
|
||||
static float scrollValue2 = 0.;
|
||||
|
||||
ui_push_size(UI_AXIS_X, UI_SIZE_PIXELS, 300, 1);
|
||||
ui_push_size(UI_AXIS_Y, UI_SIZE_PIXELS, 50, 1);
|
||||
ui_scrollbar("scroll1", 0.5, &scrollValue1);
|
||||
ui_scrollbar("scroll2", 0.5, &scrollValue2);
|
||||
ui_pop_size(UI_AXIS_X);
|
||||
ui_pop_size(UI_AXIS_Y);
|
||||
}
|
||||
ui_panel("textbox")
|
||||
{
|
||||
ui_push_size(UI_AXIS_X, UI_SIZE_PIXELS, 300, 0);
|
||||
ui_push_size(UI_AXIS_Y, UI_SIZE_PIXELS, 50, 0);
|
||||
|
||||
static str8 text = {};
|
||||
ui_text_box_result res = ui_text_box("textbox", mem_scratch(), text);
|
||||
if(res.changed)
|
||||
{
|
||||
mem_arena_clear(&textArena);
|
||||
text = str8_push_copy(&textArena, res.text);
|
||||
}
|
||||
|
||||
ui_pop_size(UI_AXIS_X);
|
||||
ui_pop_size(UI_AXIS_Y);
|
||||
}
|
||||
ui_pop_size(UI_AXIS_X);
|
||||
ui_pop_size(UI_AXIS_Y);
|
||||
}
|
||||
ui_end_frame();
|
||||
ui_draw();
|
||||
|
||||
mg_flush();
|
||||
mg_surface_present(surface);
|
||||
|
||||
mem_arena_clear(mem_scratch());
|
||||
frameTime = mp_get_time(MP_CLOCK_MONOTONIC) - startTime;
|
||||
}
|
||||
|
||||
mg_font_destroy(font);
|
||||
mg_canvas_destroy(canvas);
|
||||
mg_surface_destroy(surface);
|
||||
mp_window_destroy(window);
|
||||
|
||||
mp_terminate();
|
||||
|
||||
return(0);
|
||||
}
|
||||
45
src/ui.c
45
src/ui.c
|
|
@ -91,9 +91,9 @@ typedef struct ui_context
|
|||
ui_box* hovered;
|
||||
|
||||
ui_box* focus;
|
||||
u32 editCursor;
|
||||
u32 editMark;
|
||||
u32 editFirstDisplayedChar;
|
||||
i32 editCursor;
|
||||
i32 editMark;
|
||||
i32 editFirstDisplayedChar;
|
||||
f64 editCursorBlinkStart;
|
||||
|
||||
} ui_context;
|
||||
|
|
@ -2136,12 +2136,45 @@ ui_text_box_result ui_text_box(const char* name, mem_arena* arena, str8 text)
|
|||
ui->editFirstDisplayedChar = 0;
|
||||
ui->editCursor = 0;
|
||||
ui->editMark = 0;
|
||||
ui->editCursorBlinkStart = ui->frameTime;
|
||||
}
|
||||
//TODO: set cursor on mouse pos
|
||||
|
||||
ui->editCursorBlinkStart = ui->frameTime;
|
||||
}
|
||||
|
||||
if(sig.pressed || sig.dragging)
|
||||
{
|
||||
//NOTE: set cursor/extend selection on mouse press or drag
|
||||
vec2 pos = ui_mouse_position();
|
||||
f32 textMargin = 5; //TODO parameterize this margin! must be the same as in ui_text_box_render
|
||||
f32 cursorX = pos.x - frame->rect.x - textMargin;
|
||||
|
||||
str32 codepoints = utf8_push_to_codepoints(&ui->frameArena, text);
|
||||
i32 newCursor = codepoints.len;
|
||||
f32 x = 0;
|
||||
for(int i = ui->editFirstDisplayedChar; i<codepoints.len; i++)
|
||||
{
|
||||
mp_rect bbox = mg_text_bounding_box_utf32(style->font, style->fontSize, str32_slice(codepoints, i, i+1));
|
||||
if(x + 0.5*bbox.w > cursorX)
|
||||
{
|
||||
newCursor = i;
|
||||
break;
|
||||
}
|
||||
x += bbox.w;
|
||||
}
|
||||
//NOTE: put cursor the closest to new cursor (this maximizes the resulting selection,
|
||||
// and seems to be the standard behaviour across a number of text editor)
|
||||
if(abs(newCursor - ui->editCursor) > abs(newCursor - ui->editMark))
|
||||
{
|
||||
i32 tmp = ui->editCursor;
|
||||
ui->editCursor = ui->editMark;
|
||||
ui->editMark = tmp;
|
||||
}
|
||||
//NOTE: set the new cursor, and set or leave the mark depending on mode
|
||||
ui->editCursor = newCursor;
|
||||
if(sig.pressed && !(mp_key_mods() & MP_KEYMOD_SHIFT))
|
||||
{
|
||||
ui->editMark = ui->editCursor;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue