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added additional docu

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This commit is contained in:
vurtun 2015-06-04 22:37:47 +02:00
parent 52dcdb2d1e
commit 04cf4f9566
2 changed files with 29 additions and 20 deletions
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28
demo/nanovg.c
View File

@ -59,56 +59,55 @@ font_get_width(gui_handle handle, const gui_char *text, gui_size len)
}
static void
draw_text(NVGcontext *ctx, float x, float y, struct gui_color c,
draw_text(NVGcontext *ctx, float x, float y, const gui_byte *c,
const gui_char *string, gui_size len)
{
gui_float height = 0;
nvgBeginPath(ctx);
nvgTextMetrics(ctx, NULL, NULL, &height);
nvgFillColor(ctx, nvgRGBA(c.r, c.g, c.b, c.a));
nvgFillColor(ctx, nvgRGBA(c[0], c[1], c[2], c[3]));
nvgText(ctx, x, y + height, string, &string[len]);
nvgFill(ctx);
}
static void
draw_line(NVGcontext *ctx, float x0, float y0, float x1, float y1, struct gui_color c)
draw_line(NVGcontext *ctx, float x0, float y0, float x1, float y1, const gui_byte *c)
{
nvgBeginPath(ctx);
nvgMoveTo(ctx, x0, y0);
nvgLineTo(ctx, x1, y1);
nvgFillColor(ctx, nvgRGBA(c.r, c.g, c.b, c.a));
nvgFillColor(ctx, nvgRGBA(c[0], c[1], c[2], c[3]));
nvgFill(ctx);
}
static void
draw_rect(NVGcontext *ctx, float x, float y, float w, float h, float r, struct gui_color c)
draw_rect(NVGcontext *ctx, float x, float y, float w, float h, float r, const gui_byte* c)
{
nvgBeginPath(ctx);
nvgRoundedRect(ctx, x, y, w, h, r);
nvgFillColor(ctx, nvgRGBA(c.r, c.g, c.b, c.a));
nvgFillColor(ctx, nvgRGBA(c[0], c[1], c[2], c[3]));
nvgFill(ctx);
}
static void
draw_circle(NVGcontext *ctx, float x, float y, float r, struct gui_color c)
draw_circle(NVGcontext *ctx, float x, float y, float r, const gui_byte *c)
{
NVGpaint bg;
nvgBeginPath(ctx);
nvgCircle(ctx, x + r, y + r, r);
nvgFillColor(ctx, nvgRGBA(c.r, c.g, c.b, c.a));
nvgFillColor(ctx, nvgRGBA(c[0], c[1], c[2], c[3]));
nvgFill(ctx);
}
static void
draw_triangle(NVGcontext *ctx, float x0, float y0, float x1, float y1,
float x2, float y2, struct gui_color c)
float x2, float y2, const gui_byte *c)
{
nvgBeginPath(ctx);
nvgMoveTo(ctx, x0, y0);
nvgLineTo(ctx, x1, y1);
nvgLineTo(ctx, x2, y2);
nvgLineTo(ctx, x0, y0);
nvgFillColor(ctx, nvgRGBA(c.r, c.g, c.b, c.a));
nvgFillColor(ctx, nvgRGBA(c[0], c[1], c[2], c[3]));
nvgFill(ctx);
}
@ -126,9 +125,7 @@ draw_image(NVGcontext *ctx, gui_handle img, float x, float y, float w, float h,
static void
execute(NVGcontext *nvg, struct gui_command_buffer *list, int width, int height)
{
static const struct gui_color col = {255, 0, 0, 255};
const struct gui_command *cmd;
glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@ -190,9 +187,7 @@ static void
key(struct gui_input *in, SDL_Event *evt, gui_bool down)
{
SDL_Keycode sym = evt->key.keysym.sym;
if (sym == SDLK_LCTRL || sym == SDLK_RCTRL)
gui_input_key(in, GUI_KEY_CTRL, down);
else if (sym == SDLK_RSHIFT || sym == SDLK_LSHIFT)
if (sym == SDLK_RSHIFT || sym == SDLK_LSHIFT)
gui_input_key(in, GUI_KEY_SHIFT, down);
else if (sym == SDLK_DELETE)
gui_input_key(in, GUI_KEY_DEL, down);
@ -332,6 +327,7 @@ cleanup:
/* Cleanup */
free(gui.memory);
nvgDeleteGLES2(vg);
SDL_GL_DeleteContext(glContext);
SDL_DestroyWindow(win);
SDL_Quit();
return 0;

21
gui.h
View File

@ -1035,9 +1035,10 @@ GUI_API gui_size gui_edit(struct gui_command_buffer*, gui_float x, gui_float y,
- returns the size of the buffer in bytes after the modification
*/
GUI_API gui_size gui_edit_filtered(struct gui_command_buffer*, gui_float x, gui_float y,
gui_float w, gui_float h, gui_char*, gui_size, gui_size max, gui_bool*,
const struct gui_edit*, gui_filter filter, const struct gui_input*,
const struct gui_font*);
gui_float w, gui_float h, gui_char*, gui_size,
gui_size max, gui_bool*, const struct gui_edit*,
gui_filter filter, const struct gui_input*,
const struct gui_font*);
/* this function executes a editbox widget
Input:
- output command buffer for draw commands
@ -1106,7 +1107,7 @@ GUI_API gui_float gui_scroll(struct gui_command_buffer*, gui_float x, gui_float
- visual widget style structure describing the selector
- input structure to update the slider with
Output:
- returns the from the user input updated spinner value
- returns the from the user input updated scrollbar offset in pixels
*/
/*
* ==============================================================
@ -1117,9 +1118,21 @@ GUI_API gui_float gui_scroll(struct gui_command_buffer*, gui_float x, gui_float
*/
/* CONFIG
----------------------------
The panel configuration consists of style information that is used for
the general style and looks of panel. In addition for temporary modification
the configuration structure consists of a stack for pushing and pop either
color or property values.
USAGE
----------------------------
To use the configuration file you either initial every value yourself besides
the internal stack which needs to be initialized to zero or use the default
configuration by calling the function gui_config_default.
To add and remove temporary configuration states the gui_config_push_xxxx
for adding and gui_config_pop_xxxx for removing either color or property values
from the stack. To reset all previously modified values the gui_config_reset_xxx
were added.
Configuration function API
gui_config_default -- initializes a default panel configuration
gui_config_property -- returns the property value from an id