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Diffstat (limited to 'v_windows/v/examples/sokol/fonts.v')
| -rw-r--r-- | v_windows/v/examples/sokol/fonts.v | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/v_windows/v/examples/sokol/fonts.v b/v_windows/v/examples/sokol/fonts.v new file mode 100644 index 0000000..1cf2170 --- /dev/null +++ b/v_windows/v/examples/sokol/fonts.v @@ -0,0 +1,164 @@ +import sokol +import sokol.sapp +import sokol.gfx +import sokol.sgl +import sokol.sfons +import os + +struct AppState { +mut: + pass_action C.sg_pass_action + fons &C.FONScontext + font_normal int +} + +fn main() { + mut color_action := C.sg_color_attachment_action{ + action: gfx.Action(C.SG_ACTION_CLEAR) + value: C.sg_color{ + r: 0.3 + g: 0.3 + b: 0.32 + a: 1.0 + } + } + mut pass_action := C.sg_pass_action{} + pass_action.colors[0] = color_action + state := &AppState{ + pass_action: pass_action + fons: &C.FONScontext(0) + } + title := 'V Metal/GL Text Rendering' + desc := C.sapp_desc{ + user_data: state + init_userdata_cb: init + frame_userdata_cb: frame + window_title: title.str + html5_canvas_name: title.str + } + sapp.run(&desc) +} + +fn init(mut state AppState) { + desc := sapp.create_desc() + gfx.setup(&desc) + s := &C.sgl_desc_t{} + C.sgl_setup(s) + state.fons = sfons.create(512, 512, 1) + // or use DroidSerif-Regular.ttf + if bytes := os.read_bytes(os.resource_abs_path('../assets/fonts/RobotoMono-Regular.ttf')) { + println('loaded font: $bytes.len') + state.font_normal = C.fonsAddFontMem(state.fons, c'sans', bytes.data, bytes.len, + false) + } +} + +fn frame(user_data voidptr) { + mut state := &AppState(user_data) + state.render_font() + gfx.begin_default_pass(&state.pass_action, sapp.width(), sapp.height()) + sgl.draw() + gfx.end_pass() + gfx.commit() +} + +fn (state &AppState) render_font() { + mut sx := 0.0 + mut sy := 0.0 + mut dx := 0.0 + mut dy := 0.0 + lh := f32(0.0) + white := C.sfons_rgba(255, 255, 255, 255) + black := C.sfons_rgba(0, 0, 0, 255) + brown := C.sfons_rgba(192, 128, 0, 128) + blue := C.sfons_rgba(0, 192, 255, 255) + state.fons.clear_state() + sgl.defaults() + sgl.matrix_mode_projection() + sgl.ortho(0.0, f32(C.sapp_width()), f32(C.sapp_height()), 0.0, -1.0, 1.0) + sx = 0 + sy = 50 + dx = sx + dy = sy + state.fons.set_font(state.font_normal) + state.fons.set_size(100.0) + ascender := f32(0.0) + descender := f32(0.0) + state.fons.vert_metrics(&ascender, &descender, &lh) + dx = sx + dy += lh + C.fonsSetColor(state.fons, white) + dx = C.fonsDrawText(state.fons, dx, dy, c'The quick ', C.NULL) + C.fonsSetFont(state.fons, state.font_normal) + C.fonsSetSize(state.fons, 48.0) + C.fonsSetColor(state.fons, brown) + dx = C.fonsDrawText(state.fons, dx, dy, c'brown ', C.NULL) + C.fonsSetFont(state.fons, state.font_normal) + C.fonsSetSize(state.fons, 24.0) + C.fonsSetColor(state.fons, white) + dx = C.fonsDrawText(state.fons, dx, dy, c'fox ', C.NULL) + dx = sx + dy += lh * 1.2 + C.fonsSetSize(state.fons, 20.0) + C.fonsSetFont(state.fons, state.font_normal) + C.fonsSetColor(state.fons, blue) + C.fonsDrawText(state.fons, dx, dy, c'Now is the time for all good men to come to the aid of the party.', + C.NULL) + dx = 300 + dy = 350 + C.fonsSetAlign(state.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_BASELINE) + C.fonsSetSize(state.fons, 60.0) + C.fonsSetFont(state.fons, state.font_normal) + C.fonsSetColor(state.fons, white) + C.fonsSetSpacing(state.fons, 5.0) + C.fonsSetBlur(state.fons, 6.0) + C.fonsDrawText(state.fons, dx, dy, c'Blurry...', C.NULL) + dx = 300 + dy += 50.0 + C.fonsSetSize(state.fons, 28.0) + C.fonsSetFont(state.fons, state.font_normal) + C.fonsSetColor(state.fons, white) + C.fonsSetSpacing(state.fons, 0.0) + C.fonsSetBlur(state.fons, 3.0) + C.fonsDrawText(state.fons, dx, dy + 2, c'DROP SHADOW', C.NULL) + C.fonsSetColor(state.fons, black) + C.fonsSetBlur(state.fons, 0) + C.fonsDrawText(state.fons, dx, dy, c'DROP SHADOW', C.NULL) + C.fonsSetSize(state.fons, 18.0) + C.fonsSetFont(state.fons, state.font_normal) + C.fonsSetColor(state.fons, white) + dx = 50 + dy = 350 + line(f32(dx - 10), f32(dy), f32(dx + 250), f32(dy)) + C.fonsSetAlign(state.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_TOP) + dx = C.fonsDrawText(state.fons, dx, dy, c'Top', C.NULL) + dx += 10 + C.fonsSetAlign(state.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_MIDDLE) + dx = C.fonsDrawText(state.fons, dx, dy, c'Middle', C.NULL) + dx += 10 + C.fonsSetAlign(state.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_BASELINE) + dx = C.fonsDrawText(state.fons, dx, dy, c'Baseline', C.NULL) + dx += 10 + C.fonsSetAlign(state.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_BOTTOM) + C.fonsDrawText(state.fons, dx, dy, c'Bottom', C.NULL) + dx = 150 + dy = 400 + line(f32(dx), f32(dy - 30), f32(dx), f32(dy + 80.0)) + C.fonsSetAlign(state.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_BASELINE) + C.fonsDrawText(state.fons, dx, dy, c'Left', C.NULL) + dy += 30 + C.fonsSetAlign(state.fons, C.FONS_ALIGN_CENTER | C.FONS_ALIGN_BASELINE) + C.fonsDrawText(state.fons, dx, dy, c'Center', C.NULL) + dy += 30 + C.fonsSetAlign(state.fons, C.FONS_ALIGN_RIGHT | C.FONS_ALIGN_BASELINE) + C.fonsDrawText(state.fons, dx, dy, c'Right', C.NULL) + C.sfons_flush(state.fons) +} + +fn line(sx f32, sy f32, ex f32, ey f32) { + sgl.begin_lines() + sgl.c4b(255, 255, 0, 128) + sgl.v2f(sx, sy) + sgl.v2f(ex, ey) + sgl.end() +} |